Patent US4047033A successfully refreshed from Google Patents.
Patent US5828751A successfully refreshed from Google Patents.
US5828751A
Expired / Lapsed
US
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Method and apparatus for secure measurement certification
Assignee: CERTIFIED MEASUREMENTS LLC
•
Filing: 1996-04-08
•
Granted: 1998-10-27
•
Expires: 2016-04-08
Abstract
Abstract The invention relates to methods and apparatuses for acquiring a physical measurement, and for creating a cryptographic certification of that measurement, such that its value and time can be verified by a party that was not necessarily present at the measurement. The certified measurement may also include corroborative information for associating the actual physical measurement process with the certified measurement. Such corroborative information may reflect the internal or external state of the measurement certification device, as well as witness identifiers of any persons that may have been present at the measurement acquisition and certification. The certification may include a signal receiver to receive timing signals from a satellite or other external source. The external timing signals may be used to generate the time included in the certified measurement, or could be used to determine the location of the measurement certification device for inclusion in the certified measurement.
Inventors
- 👤 Jay S. Walker
- 👤 Bruce Schneier
- 👤 James A. Jorasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:01
CPC Classifications
H; H04; H04L; H04L63/00; H04L63/08; G; G06; G06Q; G06Q50/00; G06Q50/06; H04L63/12; H04L9/00; H04L9/32; H04L9/3226; H04L9/3231; H04L9/3271; H04L9/3297; H04L9/50; H04L2209/00; H04L2209/80; H04L2209/805; Y; Y02; Y02P; Y02P90/00; Y02P90/80; Y02P90/84; Y02P90/845
Claims Analysis
Total Claims: 201
Claim 1
Independent Claim
135 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement; and tamper resistance means for rendering at least one of the sensor, the time generator, and the computing device resistant to tampering.
Claim 2
Independent Claim
135 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement; and tamper resistance means for rendering at least one of the sensor, the time generator, and the computing device resistant to tampering.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein the time generator includes a clock.
Claim 4
Dependent Claim
13 words
The device of claim 1 wherein the cryptographic operation includes a one-way function.
Claim 5
Dependent Claim
15 words
The device of claim 3 wherein the one-way function is associated with a cryptographic key.
Claim 6
Dependent Claim
15 words
The device of claim 3 wherein the one-way function includes a representation of the time.
Claim 7
Dependent Claim
16 words
The device of claim 3 wherein the one-way function includes a representation of a non-time datum.
Claim 8
Dependent Claim
18 words
The device of claim 3 wherein the one-way function includes a representation of a previously produced certifiable measurement.
Claim 9
Dependent Claim
15 words
The device of claim 1 wherein the cryptographic operation includes encryption with an encryption key.
Claim 10
Dependent Claim
17 words
The device of claim 8 wherein the encryption incorporates a representation of a previously produced certifiable measurement.
Claim 11
Dependent Claim
15 words
The device of claim 8 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 12
Dependent Claim
15 words
The device of claim 8 where the encryption key belongs to a symmetric cryptographic protocol.
Claim 13
Dependent Claim
10 words
The device of claim 1 further comprising a number generator.
Claim 14
Dependent Claim
12 words
The device of claim 1 wherein the output device is a printer.
Claim 15
Dependent Claim
12 words
The device of claim 13 wherein the printer produces a dot-based output.
Claim 16
Dependent Claim
12 words
The device of claim 14 wherein the printer is a facsimile machine.
Claim 17
Dependent Claim
12 words
The device of claim 13 wherein the printer produces a character-based output.
Claim 18
Dependent Claim
28 words
The device of claim 13 wherein the printer prints a certifiable measurement using an ink which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 19
Dependent Claim
28 words
The device of claim 13 wherein the printer prints the certifiable measurement using a pattern which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 20
Dependent Claim
17 words
The device of claim 1 wherein the output device includes means for writing to a magnetic substrate.
Claim 21
Dependent Claim
20 words
The device of claim 1 wherein the output device includes means for writing to a substrate of an optical medium.
Claim 22
Dependent Claim
17 words
The device of claim 1 wherein the output device includes means for writing to a semiconductor medium.
Claim 23
Dependent Claim
12 words
The device of claim 1 wherein the output device includes a display.
Claim 24
Dependent Claim
14 words
The device of claim 1 wherein the tamper resistance means is a secure enclosure.
Claim 25
Dependent Claim
23 words
The device of claim 1 wherein the secure enclosure encapsulates at least one of the sensor, the time generator and the computing device.
Claim 26
Dependent Claim
13 words
The device of claim 1 wherein the measurement signal is a digital signal.
Claim 27
Independent Claim
86 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 28
Independent Claim
86 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 29
Dependent Claim
18 words
The device of claim 26 wherein the external timing signal is a time signal received from a satellite.
Claim 30
Dependent Claim
19 words
The device of claim 26 wherein the external timing signal is a time signal received from a terrestrial source.
Claim 31
Dependent Claim
15 words
The device of claim 26 wherein the signal receiver is for receiving an encrypted signal.
Claim 32
Dependent Claim
9 words
The device of claim 26 further comprising a clock.
Claim 33
Dependent Claim
15 words
A The device of claim 26 wherein the external timing signal is representative of time.
Claim 34
Dependent Claim
13 words
The device of claim 26 wherein the cryptographic operation includes a one-way function.
Claim 35
Dependent Claim
15 words
The device of claim 32 wherein the one-way function is associated with a cryptographic key.
Claim 36
Dependent Claim
18 words
The device of claim 33 wherein the one-way function includes a representation of a previously produced certifiable measurement.
Claim 37
Dependent Claim
20 words
The device of claim 32 wherein the one-way function includes a representation of time derived from the external timing signal.
Claim 38
Dependent Claim
16 words
The device of claim 32 wherein the one-way function includes a representation of a non-time datum.
Claim 39
Dependent Claim
15 words
The device of claim 26 wherein the cryptographic operation includes encryption with an encryption key.
Claim 40
Dependent Claim
17 words
The device of claim 37 wherein the encryption incorporates a representation of a previously produced certifiable measurement.
Claim 41
Dependent Claim
15 words
The device of claim 37 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 42
Dependent Claim
15 words
The device of claim 37 where the encryption key belongs to a symmetric cryptographic protocol.
Claim 43
Dependent Claim
10 words
The device of claim 26 further comprising a number generator.
Claim 44
Dependent Claim
15 words
The device of claim 26 further comprising an output device for writing the certifiable measurement.
Claim 45
Dependent Claim
12 words
The device of claim 42 wherein the output device is a printer.
Claim 46
Dependent Claim
13 words
The device of claim 43 wherein the printer is produces a dot-based output.
Claim 47
Dependent Claim
12 words
The device of claim 44 wherein the printer is a facsimile machine.
Claim 48
Dependent Claim
13 words
The device of claim 43 wherein the printer is produces a character-based output.
Claim 49
Dependent Claim
28 words
The device of claim 43 wherein the printer prints a certifiable measurement using an ink which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 50
Dependent Claim
28 words
The device of claim 43 wherein the printer prints the certifiable measurement using a pattern which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 51
Dependent Claim
17 words
The device of claim 42 wherein the output device includes means for writing to a magnetic substrate.
Claim 52
Dependent Claim
20 words
The device of claim 42 wherein the output device includes means for writing to a substrate of an optical medium.
Claim 53
Dependent Claim
17 words
The device of claim 42 wherein the output device includes means for writing to a semiconductor medium.
Claim 54
Dependent Claim
12 words
The device of claim 42 wherein the output device includes a display.
Claim 55
Dependent Claim
28 words
The device of claim 26 further comprising tamper resistance means for rendering at least one of the sensor, the signal receiver and the computing device resistant to tampering.
Claim 56
Dependent Claim
14 words
The device of claim 53 wherein the tamper resistance means is a secure enclosure.
Claim 57
Dependent Claim
23 words
The device of claim 53 wherein the secure enclosure encapsulates at least one of the sensor, the signal receiver and the computing device.
Claim 58
Dependent Claim
13 words
The device of claim 26 wherein the measurement signal is a digital signal.
Claim 59
Independent Claim
113 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time, and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 60
Independent Claim
113 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time, and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 61
Dependent Claim
12 words
The device of claim 57 wherein the time generator includes a clock.
Claim 62
Dependent Claim
13 words
The device of claim 57 wherein the cryptographic operation includes a one-way function.
Claim 63
Dependent Claim
15 words
The device of claim 59 wherein the one-way function is associated with a cryptographic key.
Claim 64
Dependent Claim
15 words
The device of claim 59 wherein the one-way function includes a representation of the time.
Claim 65
Dependent Claim
16 words
The device of claim 59 wherein the one-way function includes a representation of a non-time datum.
Claim 66
Dependent Claim
18 words
The device of claim 59 wherein the one-way function includes a representation of a previously produced certifiable measurement.
Claim 67
Dependent Claim
15 words
The device of claim 57 wherein the cryptographic operation includes encryption with an encryption key.
Claim 68
Dependent Claim
17 words
The device of claim 64 wherein the encryption incorporates a representation of a previously produced certifiable measurement.
Claim 69
Dependent Claim
15 words
The device of claim 64 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 70
Dependent Claim
15 words
The device of claim 64 where the encryption key belongs to a symmetric cryptographic protocol.
Claim 71
Dependent Claim
18 words
The device of claim 57 further comprising an input device for receiving the request for the certifiable measurement.
Claim 72
Dependent Claim
15 words
The device of claim 68 wherein the request for the certifiable measurement includes a password.
Claim 73
Dependent Claim
20 words
The device of claim 68 wherein the request for the certifiable measurement includes a quantity encrypted with an encryption key.
Claim 74
Dependent Claim
15 words
The device of claim 70 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 75
Dependent Claim
15 words
The device of claim 70 wherein the encryption key belongs to a symmetric cryptographic protocol.
Claim 76
Dependent Claim
21 words
The device of claim 68 wherein the request for the certifiable measurement includes a datum for use with a challenge-response protocol.
Claim 77
Dependent Claim
10 words
The device of claim 57 further comprising a number generator.
Claim 78
Dependent Claim
15 words
The device of claim 57 further comprising an output device for writing the certifiable measurement.
Claim 79
Dependent Claim
12 words
The device of claim 75 wherein the output device is a printer.
Claim 80
Dependent Claim
12 words
The device of claim 76 wherein the printer produces a dot-based output.
Claim 81
Dependent Claim
12 words
The device of claim 77 wherein the printer is a facsimile machine.
Claim 82
Dependent Claim
12 words
The device of claim 76 wherein the printer produces a character-based output.
Claim 83
Dependent Claim
28 words
The device of claim 76 wherein the printer prints a certifiable measurement using an ink which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 84
Dependent Claim
28 words
The device of claim 76 wherein the printer prints the certifiable measurement using a pattern which causes the certifiable measurement to be photocopied with less than full fidelity.
Claim 85
Dependent Claim
17 words
The device of claim 75 wherein the output device includes means for writing to a magnetic substrate.
Claim 86
Dependent Claim
20 words
The device of claim 75 wherein the output device includes means for writing to a substrate of an optical medium.
Claim 87
Dependent Claim
17 words
The device of claim 75 wherein the output device includes means for writing to a semiconductor medium.
Claim 88
Dependent Claim
12 words
The device of claim 75 wherein the output device includes a display.
Claim 89
Dependent Claim
30 words
The device of claim 57 further comprising a signal generator for providing a corroborative datum, indicative of an operational condition of the device, to be included in the certifiable measurement.
Claim 90
Dependent Claim
20 words
The device of claim 86 wherein the signal generator is a sensor responsive to an external state of the device.
Claim 91
Dependent Claim
13 words
The device of claim 86 wherein the signal generator is a biometric reader.
Claim 92
Dependent Claim
22 words
The device of claim 86 wherein the signal generator is a receiver for receiving the corroborative datum from a second measurement device.
Claim 93
Dependent Claim
31 words
The device of claim 57 further comprising tamper resistance means for rendering at least one of the sensor, the time generator, the signal generator and the computing device resistant to tampering.
Claim 94
Dependent Claim
14 words
The device of claim 90 wherein the tamper resistance means is a secure enclosure.
Claim 95
Dependent Claim
26 words
The device of claim 90 wherein the secure enclosure encapsulates at least one of the sensor, the time generator, the signal receiver and the computing device.
Claim 96
Dependent Claim
13 words
The device of claim 57 wherein the measurement signal is a digital signal.
Claim 97
Independent Claim
104 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; generating a representation of a time; producing an augmented measurement including the measurement signal and the representation of the time; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement to a local output device; at least one of the steps of measuring the physical parameter, generating the representation of the time, producing the augmented measurement, and performing the cryptographic operation being performed in a tamper-resistant environment.
Claim 98
Independent Claim
104 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; generating a representation of a time; producing an augmented measurement including the measurement signal and the representation of the time; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement to a local output device; at least one of the steps of measuring the physical parameter, generating the representation of the time, producing the augmented measurement, and performing the cryptographic operation being performed in a tamper-resistant environment.
Claim 99
Dependent Claim
21 words
The method of claim 94 wherein the step of generating a time includes a step of receiving an external timing signal.
Claim 100
Dependent Claim
17 words
The method of claim 94 further comprising a step of receiving a request for a certifiable measurement.
Claim 101
Dependent Claim
19 words
The method of claim 96 wherein the request for the certifiable measurement is received according to a predetermined schedule.
Claim 102
Dependent Claim
14 words
The method of claim 94 wherein the augmented measurement further includes a device identification.
Claim 103
Dependent Claim
14 words
The method of claim 94 further comprising a step of transmitting the certifiable measurement.
Claim 104
Dependent Claim
14 words
The method of claim 94 wherein the measurement signal is representative of a location.
Claim 105
Dependent Claim
32 words
The method of claim 94 further comprising a step of providing a corroborative datum indicative of an operational condition of the device and wherein the augmented measurement further includes the corroborative datum.
Claim 106
Independent Claim
68 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; receiving an external timing signal; producing an augmented measurement including the measurement signal and a representation of the external timing signal; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement.
Claim 107
Independent Claim
68 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; receiving an external timing signal; producing an augmented measurement including the measurement signal and a representation of the external timing signal; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement.
Claim 108
Dependent Claim
17 words
The method of claim 102 further comprising a step of receiving a request for a certifiable measurement.
Claim 109
Dependent Claim
19 words
The method of claim 103 wherein the request for the certifiable measurement is received according to a predetermined schedule.
Claim 110
Dependent Claim
14 words
The method of claim 102 wherein the augmented measurement further includes a device identification.
Claim 111
Dependent Claim
21 words
The method of claim 102 wherein the step of outputting the certifiable measurement includes a step of transmitting the certifiable measurement.
Claim 112
Dependent Claim
14 words
The method of claim 102 wherein the measurement signal is representative of a location.
Claim 113
Dependent Claim
32 words
The method of claim 102 further comprising a step of providing a corroborative datum indicative of an operational condition of the device and wherein the augmented measurement further includes the corroborative datum.
Claim 114
Independent Claim
82 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; generating a representation of a time; generating a corroborative datum indicative of an operating condition of the device; producing an augmented measurement including the measurement signal, the representation of the time, and the corroborative datum; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement.
Claim 115
Independent Claim
82 words
A method for measuring and certifying a physical parameter, comprising the steps of: measuring a physical parameter to provide a measurement signal representative thereof; generating a representation of a time; generating a corroborative datum indicative of an operating condition of the device; producing an augmented measurement including the measurement signal, the representation of the time, and the corroborative datum; performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and outputting the certifiable measurement.
Claim 116
Dependent Claim
21 words
The method of claim 109 wherein the step of generating a time includes a step of receiving an external timing signal.
Claim 117
Dependent Claim
17 words
The method of claim 109 further comprising a step of receiving a request for a certifiable measurement.
Claim 118
Dependent Claim
19 words
The method of claim 111 wherein the request for the certifiable measurement is received according to a predetermined schedule.
Claim 119
Dependent Claim
14 words
The method of claim 109 wherein the augmented measurement further includes a device identification.
Claim 120
Dependent Claim
21 words
The method of claim 109 wherein the step of outputting the certifiable measurement includes a step of transmitting the certifiable measurement.
Claim 121
Dependent Claim
14 words
The method of claim 109 wherein the measurement signal is representative of a location.
Claim 122
Dependent Claim
18 words
The method of claim 109 wherein the augmented measurement further includes a representation of an internal device state.
Claim 123
Dependent Claim
24 words
The method of claim 109 further comprising a step of receiving a witness identifier and wherein the augmented measurement further includes the witness identifier.
Claim 124
Independent Claim
127 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time, the time generator including a signal receiver for receiving an external timing signal; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 125
Independent Claim
127 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time, the time generator including a signal receiver for receiving an external timing signal; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 126
Dependent Claim
18 words
The device of claim 118 wherein the external timing signal is a time signal received from a satellite.
Claim 127
Dependent Claim
19 words
The device of claim 118 wherein the external timing signal is a time signal received from a terrestrial source.
Claim 128
Dependent Claim
15 words
The device of claim 118 wherein the signal receiver is for receiving an encrypted signal.
Claim 129
Dependent Claim
9 words
The device of claim 118 further comprising a clock.
Claim 130
Independent Claim
126 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing a request for a certifiable measurement according to a predetermined schedule, producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to the request for the certifiable measurement.
Claim 131
Independent Claim
126 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing a request for a certifiable measurement according to a predetermined schedule, producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to the request for the certifiable measurement.
Claim 132
Independent Claim
129 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, the memory storing a device identification, the computer processor and the memory coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the device identification, the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 133
Independent Claim
129 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, the memory storing a device identification, the computer processor and the memory coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the device identification, the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 134
Independent Claim
125 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; an input device for receiving a request for a certifiable measurement; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to the request for the certifiable measurement.
Claim 135
Independent Claim
125 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; an input device for receiving a request for a certifiable measurement; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to the request for the certifiable measurement.
Claim 136
Dependent Claim
13 words
The device of claim 125 wherein the input device includes a signal receiver.
Claim 137
Dependent Claim
15 words
The device of claim 125 wherein the request for the certifiable measurement includes a password.
Claim 138
Dependent Claim
20 words
The device of claim 125 wherein the request for the certifiable measurement includes a quantity encrypted with an encryption key.
Claim 139
Dependent Claim
15 words
The device of claim 128 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 140
Dependent Claim
15 words
The device of claim 128 wherein the encryption key belongs to a symmetric cryptographic protocol.
Claim 141
Dependent Claim
21 words
The device of claim 125 wherein the request for the certifiable measurement includes a datum for use with a challenge-response protocol.
Claim 142
Independent Claim
113 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter, coupled to the computing device, for transmitting the certifiable measurement in response to a request for the certifiable measurement.
Claim 143
Independent Claim
113 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor and the representation of the time from the time generator, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter, coupled to the computing device, for transmitting the certifiable measurement in response to a request for the certifiable measurement.
Claim 144
Independent Claim
121 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal from the sensor and the representation of the time from the time generator, said measurement signal being representative of a physical measurement and a location, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 145
Independent Claim
121 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a computing device, including a computer processor and a memory, coupled to receive a measurement signal from the sensor and the representation of the time from the time generator, said measurement signal being representative of a physical measurement and a location, said computing device producing an augmented measurement including the measurement signal and the representation of the time, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 146
Dependent Claim
16 words
The device of claim 133 wherein the measurement signal represents the request for the certifiable measurement.
Claim 147
Dependent Claim
13 words
The device of claim 133 wherein the measurement signal includes an encrypted quantity.
Claim 148
Independent Claim
140 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator for providing a corroborative datum indicative of an operational condition of the device; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor, the representation of the time from the time generator and the corroborative datum from the signal generator, said computing device producing an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 149
Independent Claim
140 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator for providing a corroborative datum indicative of an operational condition of the device; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical measurement from the sensor, the representation of the time from the time generator and the corroborative datum from the signal generator, said computing device producing an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and an output device, coupled to the computing device, for writing the certifiable measurement in response to a request for the certifiable measurement.
Claim 150
Dependent Claim
20 words
The device of claim 136 wherein the signal generator is a sensor responsive to an external state of the device.
Claim 151
Dependent Claim
13 words
The device of claim 136 wherein the signal generator is a biometric reader.
Claim 152
Dependent Claim
20 words
The device of claim 136 wherein the signal generator is a sensor responsive to an internal state of the device.
Claim 153
Dependent Claim
18 words
The device of claim 136 wherein the signal generator comprises an input station for receiving a witness identifier.
Claim 154
Dependent Claim
20 words
The device of claim 136 wherein the signal generator is for receiving the corroborative datum from a second measurement device.
Claim 155
Independent Claim
115 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device producing a request for a certifiable measurement according to a predetermined schedule, forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to the request for the certifiable measurement.
Claim 156
Independent Claim
115 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device producing a request for a certifiable measurement according to a predetermined schedule, forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to the request for the certifiable measurement.
Claim 157
Independent Claim
93 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including a device identification stored in the memory, the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement.
Claim 158
Independent Claim
93 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including a device identification stored in the memory, the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement.
Claim 159
Independent Claim
105 words
A device for secure measurement acquisition and certification, comprising: a sensor; an input device for receiving a request for a certifiable measurement; a signal receiver; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement in response to the request for the certifiable measurement.
Claim 160
Independent Claim
105 words
A device for secure measurement acquisition and certification, comprising: a sensor; an input device for receiving a request for a certifiable measurement; a signal receiver; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement in response to the request for the certifiable measurement.
Claim 161
Dependent Claim
13 words
The device of claim 144 wherein the input device includes a signal receiver.
Claim 162
Dependent Claim
15 words
The device of claim 144 wherein the request for the certifiable measurement includes a password.
Claim 163
Dependent Claim
20 words
The device of claim 144 wherein the request for the certifiable measurement includes a quantity encrypted with an encryption key.
Claim 164
Dependent Claim
15 words
The device of claim 147 wherein the encryption key belongs to an asymmetric cryptographic protocol.
Claim 165
Dependent Claim
15 words
The device of claim 147 wherein the encryption key belongs to a symmetric cryptographic protocol.
Claim 166
Dependent Claim
21 words
The device of claim 144 wherein the request for the certifiable measurement includes a datum for use with a challenge-response protocol.
Claim 167
Independent Claim
107 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter, coupled to the computing device, for transmitting the certifiable measurement in response to a request for the certifiable measurement.
Claim 168
Independent Claim
107 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter, coupled to the computing device, for transmitting the certifiable measurement in response to a request for the certifiable measurement.
Claim 169
Independent Claim
95 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said external timing signal being representative of a location, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 170
Independent Claim
95 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor and an external timing signal from the signal receiver, said external timing signal being representative of a location, said computing device forming an augmented measurement including the measurement signal and a representation of the external timing signal, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 171
Dependent Claim
17 words
The device of claim 152 wherein the external timing signal represents the request for the certifiable measurement.
Claim 172
Dependent Claim
14 words
The device of claim 152 wherein the external timing signal includes an encrypted quantity.
Claim 173
Independent Claim
112 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; a signal generator for providing a corroborative datum indicative of an operational condition of the device; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, an external timing signal from the signal receiver and the corroborative datum from the signal generator, said computing device forming an augmented measurement including the measurement signal, a representation of the external timing signal and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 174
Independent Claim
112 words
A device for secure measurement acquisition and certification, comprising: a sensor; a signal receiver; a signal generator for providing a corroborative datum indicative of an operational condition of the device; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, an external timing signal from the signal receiver and the corroborative datum from the signal generator, said computing device forming an augmented measurement including the measurement signal, a representation of the external timing signal and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 175
Dependent Claim
20 words
The device of claim 155 wherein the signal generator is a sensor responsive to an external state of the device.
Claim 176
Dependent Claim
13 words
The device of claim 155 wherein the signal generator is a biometric reader.
Claim 177
Dependent Claim
20 words
The device of claim 155 wherein the signal generator is a sensor responsive to an internal state of the device.
Claim 178
Dependent Claim
18 words
The device of claim 155 wherein the signal generator comprises an input station for receiving a witness identifier.
Claim 179
Dependent Claim
22 words
The device of claim 155 wherein the signal generator is a receiver for receiving the corroborative datum from a second measurement device.
Claim 180
Independent Claim
126 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time, the time generator including a signal receiver for receiving an external timing signal; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 181
Independent Claim
126 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time, the time generator including a signal receiver for receiving an external timing signal; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 182
Dependent Claim
18 words
The device of claim 161 wherein the external timing signal is a time signal received from a satellite.
Claim 183
Dependent Claim
19 words
The device of claim 161 wherein the external timing signal is a time signal received from a terrestrial source.
Claim 184
Dependent Claim
15 words
The device of claim 161 wherein the signal receiver is for receiving an encrypted signal.
Claim 185
Dependent Claim
9 words
The device of claim 161 further comprising a clock.
Claim 186
Independent Claim
143 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device producing a request for a certifiable measurement according to a predetermined schedule, to form an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to a request for the certifiable measurement.
Claim 187
Independent Claim
143 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device producing a request for a certifiable measurement according to a predetermined schedule, to form an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to a request for the certifiable measurement.
Claim 188
Independent Claim
128 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, the memory storing a device identification, the computer processor and the memory coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the device identification, the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 189
Independent Claim
128 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, the memory storing a device identification, the computer processor and the memory coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the device identification, the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 190
Independent Claim
148 words
A device for secure measurement acquisition and certification, comprising: a sensor; an input device for receiving a request for a certifiable measurement, the input device including a signal receiver; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to the request for the certifiable measurement.
Claim 191
Independent Claim
148 words
A device for secure measurement acquisition and certification, comprising: a sensor; an input device for receiving a request for a certifiable measurement, the input device including a signal receiver; a time generator for transmitting a representation of a time; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form the certifiable measurement, said computing device further forming the certifiable measurement in response to the request for the certifiable measurement.
Claim 192
Independent Claim
120 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter for transmitting the certifiable measurement.
Claim 193
Independent Claim
120 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator; a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement; and a transmitter for transmitting the certifiable measurement.
Claim 194
Independent Claim
121 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for generating a time signal and a location signal; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the time signal from the time generator, the location signal from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the time signal, the location signal and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 195
Independent Claim
121 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for generating a time signal and a location signal; a signal generator; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the time signal from the time generator, the location signal from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the time signal, the location signal and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 196
Dependent Claim
16 words
The device of claim 170 wherein the location signal represents the request for the certifiable measurement.
Claim 197
Dependent Claim
13 words
The device of claim 170 wherein the location signal includes an encrypted quantity.
Claim 198
Independent Claim
124 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator including a sensor responsive to an internal state of the device; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 199
Independent Claim
124 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator including a sensor responsive to an internal state of the device; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 200
Independent Claim
132 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator including an input station for receiving a witness identifier; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, the witness identifier from the signal generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time, the witness identifier and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
Claim 201
Independent Claim
132 words
A device for secure measurement acquisition and certification, comprising: a sensor; a time generator for transmitting a representation of a time; a signal generator including an input station for receiving a witness identifier; and a computing device, including a computer processor and a memory, coupled to receive a measurement signal representative of a physical parameter from the sensor, the representation of the time from the time generator, the witness identifier from the signal generator and a corroborative datum indicative of an operating condition of the device from the signal generator, said computing device forming an augmented measurement including the measurement signal, the representation of the time, the witness identifier and the corroborative datum, and performing a cryptographic operation on at least a portion of the augmented measurement to form a certifiable measurement.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 2001-10-26 | 2002-04-27 | 2002-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-26 | 2006-04-27 | 2006-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-26 | 2010-04-27 | 2010-10-27 | $7700.00 | Window Closed / Lapsed |