Video transmission and control system utilizing internal telephone lines
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United States of America Patent
Stats
-
Nov 29, 2005
Grant Date -
Jun 13, 2002
app pub date -
May 22, 2001
filing date -
Jul 14, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video transmission system for facilitating transmission of video and control signals, particularly infrared remote control signals, between different locations in a residence using existing telephone wiring. Simultaneous transmission of signals of both types over active telephone lines is possible without interference with telephone communications. Transmission succeeds without requiring special treatement of the video signals beyond RF conversion, despite signal attenuation inherent in transmission over the telephone line media. Two or more video sources may be tied into the system, and selected as desired. Remote control signals generated in one room may be utilized without requiring a clear line of sight between the remote control device and the receiver.
First Claim
Family
International Classification(s)
Cited Art Landscape
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