Patent US5301360A successfully refreshed from Google Patents.
US5301360A
Expired / Lapsed
US
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Digital option select system
Assignee: Motorola Solutions Inc
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Filing: 1991-05-06
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Granted: 1994-04-05
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Expires: 2011-05-06
Abstract
Abstract A communication device (10) comprises a coupler (19) for coupling an external device (30) to the communication device, and controller (16) for controlling the communication device., The controller has at least first and second terminals (22 and 23) for receiving digital numbers from the external device, each digital number representing a mode of operation for the communication device. The controller also includes an apparatus for transmitting a test pulse to the external device, and an apparatus for receiving a response pulse in response to the test pulse. The response pulse has predetermined direction, duration and polarity indicating a mode of operation for the communication device.
Inventors
- 👤 Arthur M. Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:45
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04B; H04B1/00; H04B1/38; H04B1/40; H04M; H04M1/00; H04M1/72; H04M1/724; H04M1/72403; H04M1/72409
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
114 words
A communication device comprising: coupler means for coupling an external device to the communication device; controller means for controlling the communication device, the controller means having at least first and second terminals for receiving digital numbers from the external device, each digital number representing a mode of operation for the communication device, the controller means comprising: means for transmitting a test pulse to the external device; means for receiving a response pulse from the external device; and means for establishing a mode of operation for the communication device in response to the response pulse; and the response pulse has a predetermined duration, a predetermined polarity and a predetermined direction for identifying the external device.
Claim 2
Dependent Claim
114 words
A communication device comprising: coupler means for coupling an external device to the communication device; controller means for controlling the communication device, the controller means having at least first and second terminals for receiving digital numbers from the external device, each digital number representing a mode of operation for the communication device, the controller means comprising: means for transmitting a test pulse to the external device; means for receiving a response pulse from the external device; and means for establishing a mode of operation for the communication device in response to the response pulse; and the response pulse has a predetermined duration, a predetermined polarity and a predetermined direction for identifying the external device.
Claim 3
Dependent Claim
28 words
The communication device of claim 1, further comprising means for applying a supply voltage to the external device to establish a logic one level in the external device.
Claim 4
Dependent Claim
28 words
The communication device of claim 2, further comprising means for applying a ground voltage to the external device to establish a logic zero level in the external device.
Claim 5
Dependent Claim
16 words
The communication device of claim 3, further comprising radio receiver means coupled to the controller means.
Claim 6
Dependent Claim
16 words
The communication device of claim 4, further comprising ratio transmitter means coupled to the controller means.
Claim 7
Dependent Claim
89 words
A communication device comprising: controller means for controlling the communication device; the controller means comprising: first and second ports; means for transmitting a test pulse to an external device from said first port; means for receiving a response pulse responsive to the test pulse from the external device at said second port, the response pulse having a predetermined duration, a predetermined polarity, and a predetermined direction for identifying the external device; and means for establishing a mode of operation for the communication device in response to the response pulse.
Claim 8
Dependent Claim
89 words
A communication device comprising: controller means for controlling the communication device; the controller means comprising: first and second ports; means for transmitting a test pulse to an external device from said first port; means for receiving a response pulse responsive to the test pulse from the external device at said second port, the response pulse having a predetermined duration, a predetermined polarity, and a predetermined direction for identifying the external device; and means for establishing a mode of operation for the communication device in response to the response pulse.
Claim 9
Dependent Claim
16 words
The communication device of claim 6, further comprising radio receiver means coupled to the controller means.
Claim 10
Dependent Claim
16 words
The communication device of claim 7, further comprising radio transmitter means coupled to the controller means.
Claim 11
Dependent Claim
78 words
A communication device comprising: controller means for controlling the communication device; the controller means comprising: means for transmitting a test pulse to an external device; means for receiving a response pulse from the external device, in response to the test pulse, the response pulse having a predetermined duration, a predetermined polarity, and a predetermined direction for identifying the external device; and means for establishing a mode of operation for the communication device in response to the response pulse.
Claim 12
Dependent Claim
78 words
A communication device comprising: controller means for controlling the communication device; the controller means comprising: means for transmitting a test pulse to an external device; means for receiving a response pulse from the external device, in response to the test pulse, the response pulse having a predetermined duration, a predetermined polarity, and a predetermined direction for identifying the external device; and means for establishing a mode of operation for the communication device in response to the response pulse.
Claim 13
Dependent Claim
28 words
The communication device of claim 9, further comprising means for applying a supply voltage to the external device to establish a logic one level in the external device.
Claim 14
Dependent Claim
28 words
The communication device of claim 10, further comprising means for applying a ground voltage to the external device to establish a logic zero level in the external device.
Claim 15
Dependent Claim
16 words
The communication device of claim 11, further comprising radio receiver means coupled to the controller means.
Claim 16
Dependent Claim
16 words
The communication device of claim 11, further comprising radio transmitter means coupled to the controller means.
Claim 17
Dependent Claim
89 words
A communication system comprising: an external device; and a communication device, comprising; coupler means for coupling the external device to the communication device; controller means comprising: at least first and second terminals for receiving digital numbers having zero and one logic states from the external device, each digital number representing a mode of operation for the communication device; and a means for receiving a response pulse from the external device, the response pulse having a predetermined duration, a predetermined polarity and a predetermined direction for identifying the external device.
Claim 18
Dependent Claim
89 words
A communication system comprising: an external device; and a communication device, comprising; coupler means for coupling the external device to the communication device; controller means comprising: at least first and second terminals for receiving digital numbers having zero and one logic states from the external device, each digital number representing a mode of operation for the communication device; and a means for receiving a response pulse from the external device, the response pulse having a predetermined duration, a predetermined polarity and a predetermined direction for identifying the external device.
Claim 19
Dependent Claim
32 words
The communication system of claim 14, wherein the external device comprises: means for coupling the first and second terminals of the controller means of the communication device to the logic zero state.
Claim 20
Dependent Claim
42 words
The communication system of claim 14, wherein the external device comprises: means for coupling the first terminal of the controller means to the logic one state; and means for coupling the second terminal of the controller means to the logic zero state.
Claim 21
Dependent Claim
39 words
The communication system of claim 14, wherein the controller means comprises: means for transmitting a test pulse to the external device; and means for establishing a mode of operation for the communication device in response to the response pulse.
Claim 22
Dependent Claim
25 words
The communication system of claim 17 wherein the external device comprises: pulse generator means for generating the response pulse in response to the test pulse.
Claim 23
Dependent Claim
28 words
The communication system of claim 14, further comprising means for applying a ground voltage to the external device to establish a logic zero level in the external device.
Claim 24
Dependent Claim
16 words
The communication system of claim 14, further comprising radio receiver means coupled to the controller means.
Claim 25
Dependent Claim
20 words
The communication system of claim 14, wherein the communication device further comprises radio transmitter means coupled to the controller means.
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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) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |