US6131045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio communication device for restricting specific function and method for restricting the function
Assignee: Lenovo Innovations Ltd Hong Kong
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Filing: 1997-11-03
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Granted: 2000-10-10
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Expires: 2017-11-03
Abstract
Abstract A radio communication device 7 existing in a function control area 3 receives both a call signal 4 from a base station and a function control signal 5 transmitted from a function control signal transmitting device 2. The call signal 4 and the function control signal 5 have the same frequency. The call signal 4 received is converted into a predetermined block format and constitutes predetermined frames during which data errors occurred in the predetermined block is counted. After the counting, the number of data errors occurred in the predetermined block is compared with a predetermined value. On the basis of the result of comparison, it is determined whether or not the radio communication device 7 exists in a function control area 3. When it is determined that the radio communication device 7 exists in the function control area 3, the function of the radio communication device 7 is controlled and restricted.
Inventors
- 👤 Shinichiro Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:28
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/02; H04W48/04; H04W88/00; H04W88/02
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
74 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device for receiving said call signal and said function control signal, wherein said function control signal causes an error in said received call signal to control a predetermined function of said radio communication device.
Claim 2
Dependent Claim
74 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device for receiving said call signal and said function control signal, wherein said function control signal causes an error in said received call signal to control a predetermined function of said radio communication device.
Claim 3
Dependent Claim
44 words
A radio communication system as claimed in claim 1, said radio communication device further comprising: function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area.
Claim 4
Dependent Claim
47 words
A radio communication system as claimed in claim 2, said radio communication device further comprising: function control means for controlling a predetermined function of said radio communication device when said function control area determination means determines that said radio communication device exists in said function control area.
Claim 5
Dependent Claim
127 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device for receiving said call signal and said function control signal, said radio communication device comprising a function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area, wherein said function control area determination means comprises means for determining whether or not said radio communication device in said function control area on the basis of the number of data errors occurred in a predetermined block of said call signal.
Claim 6
Dependent Claim
127 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device for receiving said call signal and said function control signal, said radio communication device comprising a function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area, wherein said function control area determination means comprises means for determining whether or not said radio communication device in said function control area on the basis of the number of data errors occurred in a predetermined block of said call signal.
Claim 7
Dependent Claim
23 words
A radio communication system as claimed in claim 4, wherein said predetermined block comprises a sync code, a judge block and another block.
Claim 8
Dependent Claim
24 words
A radio communication system as claimed in claim 5, wherein the sync code, the judge block and the another block are adjacent each other.
Claim 9
Dependent Claim
78 words
A radio communication system as claimed in claim 6, wherein said function control area determination means comprises means for determining that said radio communication device exists in said function control area when the number of the data errors occurred in the sync code and the another block is equal to or smaller than a first predetermined value and the number of data errors occurred in the judge block is equal to or bigger than a second predetermined value.
Claim 10
Dependent Claim
33 words
A radio communication system as claimed in claim 1, wherein said function control signal transmitting device transmits said function control signal during a specific time period of a frame with said call signal.
Claim 11
Dependent Claim
26 words
A radio communication system as claimed in claim 8, wherein said specific time period includes a time for receiving a predetermined block of said call signal.
Claim 12
Dependent Claim
17 words
A radio communication system as claimed in claim 9, wherein said predetermined block comprises a judge block.
Claim 13
Dependent Claim
20 words
A radio communication system as claimed in claim 1, wherein said radio communication device comprises a radio selective call receiver.
Claim 14
Dependent Claim
22 words
A radio communication system as claimed in claim 11, wherein said radio selective call receiver comprises a bi-directional radio selective call receiver.
Claim 15
Dependent Claim
30 words
A radio communication system as claimed in claim 12, wherein said bi-directional radio selective call receiver comprises reply signal reservation means for reserving a reply signal to the call signal.
Claim 16
Dependent Claim
61 words
A radio communication system as claimed in claim 13, wherein said bi-directional radio selective call receiver further comprises display means for displaying whether or not said bi-directional radio selective call receiver exists in said function control area according to said function control area determination means and whether or not the reply signal is reserved according to said reply signal reservation means.
Claim 17
Dependent Claim
17 words
A radio communication system as claimed in claim 3, wherein said call signal employs the POCSAG system.
Claim 18
Dependent Claim
158 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal: and a radio communication device for receiving said call signal and said function control signal, said radio communication device comprising: function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area; and function control means for controlling a predetermined function of said radio communication device when said function control area determination means determines that said radio communication device exists in said function control area, wherein said function control area determination means comprises means for determining whether or not said radio communication device is in the function control area according to the number of data errors occurred in a predetermined codeword of said call signal.
Claim 19
Dependent Claim
158 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal: and a radio communication device for receiving said call signal and said function control signal, said radio communication device comprising: function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area; and function control means for controlling a predetermined function of said radio communication device when said function control area determination means determines that said radio communication device exists in said function control area, wherein said function control area determination means comprises means for determining whether or not said radio communication device is in the function control area according to the number of data errors occurred in a predetermined codeword of said call signal.
Claim 20
Dependent Claim
23 words
A radio communication system as claimed in claim 16, wherein said predetermined codeword comprises a sync codeword, a judge codeword and another codeword.
Claim 21
Dependent Claim
24 words
A radio communication system as claimed in claim 17, wherein said sync codeword, the judge codeword and the another codeword are adjacent each other.
Claim 22
Dependent Claim
74 words
A radio communication device comprising: receiving means for receiving a call signal from a base station and a function control signal transmitted from a function control signal transmitting device, said function control signal having the same frequency as that of said call signal; and control means for controlling a predetermined function of said radio communication device in correspondence with an error in the reception of said call signal generated by said function control signal.
Claim 23
Dependent Claim
74 words
A radio communication device comprising: receiving means for receiving a call signal from a base station and a function control signal transmitted from a function control signal transmitting device, said function control signal having the same frequency as that of said call signal; and control means for controlling a predetermined function of said radio communication device in correspondence with an error in the reception of said call signal generated by said function control signal.
Claim 24
Dependent Claim
40 words
A radio communication device as claimed in claim 19, further comprising: function control area determination means responsive to said call signal and said function control signal, for determining whether or not said radio communication device exists in function control area.
Claim 25
Dependent Claim
37 words
A radio communication device as claimed in claim 20, wherein said function control means controls a predetermined function when said function control area determination means determines that said radio communication device exists in said function control area.
Claim 26
Dependent Claim
20 words
A radio communication device as claimed in claim 19, wherein said radio communication device comprises a radio selective call receiver.
Claim 27
Dependent Claim
22 words
A radio communication device as claimed in claim 22, wherein said radio selective call receiver comprises a bi-directional radio selective call receiver.
Claim 28
Dependent Claim
30 words
A radio communication device as claimed in claim 23, wherein said bi-directional radio selective call receiver comprises reply signal reservation means for reserving a reply signal to the call signal.
Claim 29
Dependent Claim
61 words
A radio communication device as claimed in claim 24, wherein said bi-directional radio selective call receiver further comprises display means for displaying whether or not said bi-directional radio selective call receiver exists in said function control area according to said function control area determination means and whether or not said reply signal is reserved according to said reply signal reservation means.
Claim 30
Dependent Claim
66 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; receiving a judge block in said call signal; receiving another block in said call signal; and determining whether or not said radio communication device exists in a function control area, by receiving said judge block and said another block.
Claim 31
Dependent Claim
66 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; receiving a judge block in said call signal; receiving another block in said call signal; and determining whether or not said radio communication device exists in a function control area, by receiving said judge block and said another block.
Claim 32
Dependent Claim
50 words
A control method as claimed in claim 26, further comprising the steps of: reserving a transmission of a reply signal; and displaying on display means of said radio communication device a reservation of the reply signal and whether or not said radio communication device exists in the function control area.
Claim 33
Dependent Claim
92 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; receiving a judge block in said call signal; counting data errors occurred in said judge block; receiving another block in said call signal; counting data errors occurred in said another block; and controlling a function of a radio communication device on the basis of the number of data errors occurred in said judge block and the number of data errors occurred in said another block.
Claim 34
Dependent Claim
92 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; receiving a judge block in said call signal; counting data errors occurred in said judge block; receiving another block in said call signal; counting data errors occurred in said another block; and controlling a function of a radio communication device on the basis of the number of data errors occurred in said judge block and the number of data errors occurred in said another block.
Claim 35
Dependent Claim
50 words
A control method as claimed in claim 28, further comprising the steps of: reserving a transmission of a reply signal; and displaying on display means of said radio communication device a reservation of the reply signal and whether or not said radio communication device exists in the function control area.
Claim 36
Dependent Claim
143 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; determining whether it is a timing of a frame of said call signal to be received; synchronizing the frame by a sync code in said call signal; receiving a judge block in said call signal; counting data errors occurred in the judge block in said call signal; receiving another block of said call signal; counting data errors occurred in said another block in said call signal; comparing the number of data errors occurred in said judge block with a first predetermined value; comparing the number of data errors occurred in said another block with a second predetermined value; and controlling a function of a radio communication device on the basis of a result of the comparison.
Claim 37
Dependent Claim
143 words
A control method for controlling a predetermined function of a radio communication device, the method comprising the steps of: receiving a call signal from a base station; determining whether it is a timing of a frame of said call signal to be received; synchronizing the frame by a sync code in said call signal; receiving a judge block in said call signal; counting data errors occurred in the judge block in said call signal; receiving another block of said call signal; counting data errors occurred in said another block in said call signal; comparing the number of data errors occurred in said judge block with a first predetermined value; comparing the number of data errors occurred in said another block with a second predetermined value; and controlling a function of a radio communication device on the basis of a result of the comparison.
Claim 38
Dependent Claim
94 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device comprising an alerting means for alerting a user of said call signal, said radio communication device receiving said call signal and said function control signal, said function control signal for generating intentional error in said received call signal, wherein when said radio communication device detects said intentional error said alerting means is disabled.
Claim 39
Dependent Claim
94 words
A radio communication system comprising: a function control signal transmitting device, responsive to a call signal from a base station, for transmitting a function control signal having the same frequency as that of said call signal; and a radio communication device comprising an alerting means for alerting a user of said call signal, said radio communication device receiving said call signal and said function control signal, said function control signal for generating intentional error in said received call signal, wherein when said radio communication device detects said intentional error said alerting means is disabled.
Claim 40
Dependent Claim
25 words
A radio communication system comprising as recited in claim 31 wherein said function control signal transmitting device is located in a radio call restricted area.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-10 | 2004-04-10 | 2004-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-10 | 2008-04-10 | 2008-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-10 | 2012-04-10 | 2012-10-10 | $7700.00 | Window Closed / Lapsed |