Method and apparatus for telephone line multiplex channeling of toll-quality voice and digital information
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United States of America Patent
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Aug 4, 1992
Grant Date -
N/A
app pub date -
Dec 4, 1989
filing date -
Dec 4, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for telephone line multiplex channeling of toll-quality voice and modem-encoded digital data from telecommunication devices (FAX, computers, displays, printers, etc.) involving variably sample-compression of digitally converted voice signals within successive time frames, and filling the resulting unoccupied time within each such frame with the modem-encoded digital data, and preferably with guard band signals separating the voice and modem-encoded digital data within each frame.
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