US3754265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal processing means and method
Assignee: American Electronic Laboratories Inc
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Filing: 1971-11-26
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Granted: 1973-08-21
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Expires: 1991-11-26
Abstract
Abstract A signal processing means and method in which a plurality of orthogonally disposed directional radio frequency signal receiving means, each deliver an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding its directional disposition, a signal converting means receives signals from said directional receiving means and delivers an output signal which is a predetermined function of said signals, a function generating means produces an output signal which is a tangent function of angle , and a signal comparing means receives the output signals from said converting means and said function generating means and delivers an output signal when its said input signals have a predetermined relationship. A gating means delivers output signals from said directional receiving means in response to the delivery of an output signal from said signal comparing means, thereby delivering output signals from said directional receiving means to correspond with a received electromagnetic signal having a direction theta corresponding to the angle of the tangent function being generated by the function generating means.
Inventors
- 👤 R Markowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:44
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
132 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first predetermined fixed direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second predetermined fixed direction which is nonparallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, and signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals.
Claim 2
Dependent Claim
132 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first predetermined fixed direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second predetermined fixed direction which is nonparallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, and signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals.
Claim 3
Dependent Claim
180 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second direction which is nonpArallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals, and gating means receiving output signals from said signal comparing means and the output signals from said first and second directional radio frequency signal receiving means and transmitting said output signals received from said first and second directional receiving means responsive to the delivery of an output signal from said signal comparing means.
Claim 4
Dependent Claim
180 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second direction which is nonpArallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals, and gating means receiving output signals from said signal comparing means and the output signals from said first and second directional radio frequency signal receiving means and transmitting said output signals received from said first and second directional receiving means responsive to the delivery of an output signal from said signal comparing means.
Claim 5
Dependent Claim
185 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second direction which is nonparallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, and signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals, said converting means including first and second means each delivering an output signal responsive respectively to the amplitudes of the pair of output signals of said pair of directional radio frequency signal receiving means, and dividing means delivering an output signal corresponding to the quotient resulting from the division of one by the other of said amplitudes.
Claim 6
Dependent Claim
185 words
A signal processing means comprising first directional radio frequency signal receiving means for providing an output signal proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a first direction, second directional radio frequency receiving means for providing an output signal proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a second direction which is nonparallel to the first direction of said first directional receiving means, signal converting means receiving the signals from said first and second directional radio frequency signal receiving means and delivering an output signal responsive thereto, function generating means providing an output signal, and signal comparing means receiving the output signals from said converting means and said generating means and delivering output signals, said converting means including first and second means each delivering an output signal responsive respectively to the amplitudes of the pair of output signals of said pair of directional radio frequency signal receiving means, and dividing means delivering an output signal corresponding to the quotient resulting from the division of one by the other of said amplitudes.
Claim 7
Dependent Claim
32 words
The means of claim 3 in which the output signal of said dividing means has an amplitude corresponding to said quotient, and said function generating means provides an amplitude modulated output signal.
Claim 8
Dependent Claim
41 words
The means of claim 4 in which said comparing means provides an output signal when the amplitude of the output signal from said dividing means has a predetermined relationship to the amplitude of the output signal from said function generating means.
Claim 9
Dependent Claim
64 words
The means of claim 3 in which the second direction of said second directional radio frequency receiving means is displaced 90* from the first direction of said first directional radio frequency receiving means, and the function generator means provides an output signal corresponding to a tangent function and said signal comparing means provides an output signal when its input signals have a predetermined relationship.
Claim 10
Dependent Claim
33 words
The means of claim 6 including gating means receiving the output signals from said directional radio frequency signal receiving means responsive to the delivery of an output signal from said signal comparing means.
Claim 11
Dependent Claim
18 words
The means of claim 7 including driving means for controlling the output signal of said function generating means.
Claim 12
Dependent Claim
164 words
The means of claim 8 including third directional radio frequency signal receiving means for providing output signals proportional to the magnitude of the directional component of a received electromagnetic signal corresponding to a third direction which is displaced 180* from the first direction and 90* from the second direction of said respective first and second directional radio frequency receiving means, and a fourth directional radio frequency signal receiving means for providing output signals proportional to the magnitude of the directional component of the received electromagnetic signals corresponding to a fourth direction which is displaced 270* From the first direction, 180* from the second direction and 90* from the third direction of said respective first, second and third directional radio frequency receiving means, and signal selecting means delivering output signals from a selected adjacent pair of said directional radio frequency signal receiving means, each of said adjacent pairs of said directional radio frequency signal receiving means respectively corresponding to first, second, third and fourth quadrants.
Claim 13
Dependent Claim
72 words
The means of claim 9 in which said driving means energizes said generating means to sequentially provide first, second, third and fourth quadrant tangent functions and said signal selecting means includes switching meanS periodically actuated by said driving means to deliver signals from adjacent pairs of directional radio frequency signal receiving means corresponding to the quadrant of the tangent signal being provided by the function generating means to said signal comparing means.
Claim 14
Dependent Claim
41 words
The means of claim 10 including signal receiver for receiving the output signals from said gating means and the tangent signal from said function generating means, and providing said output signals in correlation to the directions from which they are received.
Claim 15
Dependent Claim
51 words
The means of claim 11 in which said drive means energizes said function generating means to provide a tangent function of angle which scans between 0* and 360*, and said signal receiver provides a panoramic display of the received signals with respect to the directional angle at which they are received.
Claim 16
Dependent Claim
96 words
Method of signal processing including the steps of a. deriving a first signal proportional to the direction and magnitude of an electromagnetic signal with respect to a first direction b. deriving a second signal proportional to the direction and magnitude of said electromagnetic signal with respect to a second directiOn which is nonparallel to the first direction c. producing a signal which is a function of said first and second signals d. comparing said produced signal with a a selected signal e. and delivering the electromagnetic signal when the produced signal corresponds with said selected signal.
Claim 17
Dependent Claim
96 words
Method of signal processing including the steps of a. deriving a first signal proportional to the direction and magnitude of an electromagnetic signal with respect to a first direction b. deriving a second signal proportional to the direction and magnitude of said electromagnetic signal with respect to a second directiOn which is nonparallel to the first direction c. producing a signal which is a function of said first and second signals d. comparing said produced signal with a a selected signal e. and delivering the electromagnetic signal when the produced signal corresponds with said selected signal.
Claim 18
Dependent Claim
50 words
The method of claim 13 in which the first and second signals are derived respectively by first and second radio frequency receiving means, and the produced signal corresponds to the quotient resulting from the division of the amplitude of one derived signal by the amplitude of the other derived signal.
Claim 19
Dependent Claim
81 words
The method of claim 14 in which said first and second radio frequency receiving means are directional delivering maximum signals respectively corresponding with said first and second directions of said first and second derived signals, said first and second directions are displaced 90* from each other, and said selected signal is derived from a tangent function of angle theta '', whereby the electromagnetic signal delivered has an angular direction theta corresponding to the tangent angle theta '' of the selected signal.
Claim 20
Dependent Claim
53 words
The method of claim 15 which includes the step of scanning the electromagnetic signals received by said first and second directional electromagnetic radio frequency signal receiving means by varying the selected signal as a function of time and delivering said electromagnetic signals as a function of time and angle theta corresponding to direction.
Claim 21
Dependent Claim
116 words
The method of claim 15 including the steps of deriving third and fourth signals each respectively proportional to the direction and magnitude of an electromagnetic signal with respect to third and fourth directions which are each respectively displaced 180* from said first and second directions, said third and fourth signals being derived respectively by third and fourth radio frequency receiving means in which the direction of maximum derived signals respectively correspond with said third and fourth directions, and the selected signal is derived from a tangent function of angle theta '' between 0* and 360*, whereby the electromagnetic signal delivered has an angular direction theta corresponding to the tangent angle theta '' of the selected signal.
Claim 22
Dependent Claim
54 words
The method of claim 17 which includes the step of scanning the electromagnetic signals received by said first, second, third and fourth directional electromagnetic radio frequency receiving means by varying the selected signal as a function of time and delivering said electromagnetic signals as a function of time and angle theta corresponding to direction.
References Cited (Backward Citations)
US3588900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |