Telecommunication display system
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United States of America Patent
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-
Nov 15, 1994
Issued Date -
N/A
app pub date -
May 1, 1992
filing date -
Sep 27, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A telecommunication system provides voice and data communications over a conventional telephone line that can be dynamically switched from voice mode to data mode during a single conversation. Each station includes a telephone for voice communications and bypass relay means for selectively connecting the telephone to the telephone line in voice mode and disconnecting the telephone while operating in data mode. Prior to transmitting data, the originating station first transmits a start signal over the telephone line that includes a rate signal indicating one of the several possible data transmission rates. If a station detects a start signal transmitted by a remote station, a microcontroller directs the bypass relay means and modem to automatically switch from voice mode to data mode in preparation for receiving data from the originating station.
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