Video transmission and control system utilizing internal...

Details Video transmission and control system utilizing internal... Video transmission and control system utilizing internal...

2007-12-04

2007-12-04

Woo, Stella (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

C379S093010

Reexamination Certificate

active

11071362

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 treatment 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.

REFERENCES:
patent: 6970537 (2005-11-01), Goodman
A.H. Ithell, W.G.T. Jones; A Proposal For The Introduction Of Digital Techniques Into Local Distribution; Mar. 6, 1978, IEEE Program, Switzerland (Ex. 1 to Ref. D1).
AT&T Voice Data Multiplexer Central Equipment User Manual, Issue 1; AT&T, U.S.A., dated Jun. 1989 (Ex. 5 to Ref. D1).
E. Sweets; Service Offers Greater Speed, Lower Costs; Bell Labs News; U.S.A., Apr. 7, 1986, p. 3 (Ex. 7 to Ref. D1).
Bellcore; Request For Information; Asymmetrical Digital Subscriber Line (ADSL) Systems That Support Simplex High-Bit-Rate Access and POTS In The Copper Loop Plant; Jun. 1990.

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