Patent US5018188A successfully refreshed from Google Patents.
US5018188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microphone-controller with multifunction, single conductor
Assignee: Motorola Solutions Inc
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Filing: 1989-12-20
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Granted: 1991-05-21
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Expires: 2009-12-20
Abstract
Abstract The single power conductor carries audio and a serial data bus. The microphone's amplifier (101) is connected to the conductor (108). The incoming audio signal rides on the DC supply voltage from the radiotelephone. The supply voltage, through a voltage regulator (103), supplies power to the amplifier (102) and a microprocessor (105), used to transmit the serial data message on the conductor (108). Both the amplifier (102) and the voltage regulator (103) are isolated from the power conductor (108) by a FET switch (104) that is controlled by the microprocessor (105). The switch (104) is turned off, isolating the circuitry when the microprocessor (105) is transmitting. <IMAGE>
Inventors
- 👤 Joseph L. Kowalski
- 👤 Daniel S. Rokusek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:12
CPC Classifications
H; H04; H04M; H04M11/00; H04M1/00; H04M1/60; H04M1/6033; H04M1/6041; H04M1/6075; H04W; H04W88/00; H04W88/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
A microphone-controller apparatus, for providing an audio signal and control signals, coupled by a multifunction, single conductor to transceiving means, the apparatus comprising: (a) an electroacoustic transducer for generating the audio signal; (b) amplifying means, for amplifying the audio signal, having an input coupled to the electroacoustic transducer and an output coupled to the multifunction, single conductor; (c) controllable isolation means for isolating the amplifying means and the voltage regulation means from the multifunction, single conductor; (d) voltage regulation means for regulating a first voltage provided by the transceiver means over the multifunction, single conductor, thereby providing a predetermined second voltage to the microphone-controller apparatus; and (e) processing means for controlling the apparatus, the controllable isolation means, and generating the control signals to be transmitted over the multifunction, single conductor.
Claim 2
Dependent Claim
130 words
A microphone-controller apparatus, for providing an audio signal and control signals, coupled by a multifunction, single conductor to transceiving means, the apparatus comprising: (a) an electroacoustic transducer for generating the audio signal; (b) amplifying means, for amplifying the audio signal, having an input coupled to the electroacoustic transducer and an output coupled to the multifunction, single conductor; (c) controllable isolation means for isolating the amplifying means and the voltage regulation means from the multifunction, single conductor; (d) voltage regulation means for regulating a first voltage provided by the transceiver means over the multifunction, single conductor, thereby providing a predetermined second voltage to the microphone-controller apparatus; and (e) processing means for controlling the apparatus, the controllable isolation means, and generating the control signals to be transmitted over the multifunction, single conductor.
Claim 3
Dependent Claim
15 words
The microphone-controller of claim 1 wherein the controllable isolation means is a field-effect transistor switch.
Claim 4
Dependent Claim
12 words
The microphone-controller of claim 1 wherein the processing means is a microprocessor.
Claim 5
Dependent Claim
18 words
The microphone-controller of claim 1 and further including indication means, coupled to the processing means, for displaying data.
Claim 6
Dependent Claim
151 words
A microphone-controller apparatus, for providing and audio signal and control signals, coupled by a multifunction, single conductor to a radiotelephone, the apparatus comprising: (a) an electroacoustic transducer for generating the audio signal; (b) amplifying means, for amplifying the audio signal, having an input coupled to the electrocoustic transducer and an output coupled to the multifunction, single conductor; (c) voltage regulation means for regulating a first voltage provided by the radiotelephone over the multifunction, single conductor, thereby providing a predetermined second voltage to the microphone-controller apparatus; (d) controllable isolation means for isolating the amplifying means and the voltage regulation means from the multifunction, single conductor; (e) processing means for controlling the controllable isolation means and generating the control signals for transmission on the multifunction, single conductor to the radiotelephone; and (f) switching means, coupled to the processing means, for entering data to be encoded, by the processing means, into the control signals.
Claim 7
Dependent Claim
151 words
A microphone-controller apparatus, for providing and audio signal and control signals, coupled by a multifunction, single conductor to a radiotelephone, the apparatus comprising: (a) an electroacoustic transducer for generating the audio signal; (b) amplifying means, for amplifying the audio signal, having an input coupled to the electrocoustic transducer and an output coupled to the multifunction, single conductor; (c) voltage regulation means for regulating a first voltage provided by the radiotelephone over the multifunction, single conductor, thereby providing a predetermined second voltage to the microphone-controller apparatus; (d) controllable isolation means for isolating the amplifying means and the voltage regulation means from the multifunction, single conductor; (e) processing means for controlling the controllable isolation means and generating the control signals for transmission on the multifunction, single conductor to the radiotelephone; and (f) switching means, coupled to the processing means, for entering data to be encoded, by the processing means, into the control signals.
Claim 8
Dependent Claim
15 words
The microphone-controller of claim 5 wherein the controllable isolation means is a field-effect transistor switch.
Claim 9
Dependent Claim
12 words
The microphone-controller of claim 5 wherein the processing means is a microprocessor.
Claim 10
Dependent Claim
18 words
The apparatus of claim 5 and further including indication means, for displaying data, coupled to the processing 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) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |