Telephonic communications – Subscriber line or transmission line interface
Patent
1993-03-10
1996-09-17
Hofsass, Jeffery
Telephonic communications
Subscriber line or transmission line interface
379344, 379398, 379404, 379413, 379 37, H04M 1104
Patent
active
055576729
ABSTRACT:
A channel interface unit for interconnecting a two-wire transmission path which transmits analog signals and a digital signal transmission path. The channel interface unit includes a digital interface unit coupled with the digital signal transmission path and producing digital signals based on digital signals received from the digital signal transmission path, a converter for converting the digital signals to analog signals, a filter for removing noise, produced by the converter, from the analog signals, a driver, coupled with the two-wire transmission path, for amplifying the filtered analog signals, and a power supply for providing regulated voltage to the driver.
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Hogan James P.
Perry Steven B.
Antec Corporation
Hofsass Jeffery
Hunter Daniel S.
Michaelson Peter L.
Pokotylo John C.
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