EP0696149A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cellular phone interface for a simultaneous voice/data modem
Assignee: AT&T Inc
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Filing: 1995-07-19
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Granted: —
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Expires: 2015-07-19
Abstract
Abstract A cellular interface (110) directly couples the speaker and microphone (210) of a cellular telephone to a simultaneous voice and data (SVD) modem (100). This interface allows a cellular telephone user to use their cellular telephone for simultaneous voice and data communications over the cellular network. In addition, if the SVD modem has a port (105) coupled to a switched facility (on 21) of a switching system, this cellular interface allows the cellular telephone user to place a telephone call from their cellular telephone over the switched facility.
Inventors
- 👤 Stanley Bottoms
- 👤 Gordon Bremer
- 👤 Kenneth David Ko
- 👤 Randy D. Roberson
- 👤 Robert Earl Scott
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 09:58
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04B; H04B7/00; H04B7/24; H04B7/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
Apparatus comprising: a modem; a cellular telephone; and a cable that couples the modem to the cellular telephone, wherein the cable includes a plurality of conductors and where one of the plurality of conductors conveys an audio signal from a microphone of the cellular telephone to the modem and another of the plurality of conductors conveys an audio signal from the modem to a speaker of the cellular telephone.
Claim 2
Independent Claim
52 words
A method for use in a modem comprising the steps of: receiving a data signal in the modem; receiving an audio signal in the modem from a cellular telephone handset; and providing a modulated signal representing the received data signal and the received audio signal from the modem to the cellular telephone.
Claim 3
Dependent Claim
32 words
The method of claim 3 wherein the step of providing modulates the received data signal and the received audio signal to provide a simultaneous voice and data signal to the cellular telephone.
References Cited (Backward Citations)
US7650593B2
Cited
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