Video transmission system and method utilizing phone lines...

Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels

Reexamination Certificate

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C379S090010

Reexamination Certificate

active

06865193

ABSTRACT:
Video programming signals from a broadband source are distributed on installed telephone wiring to the individual units of a commercial structure or multiple unit dwelling. In all methods and associated devices a first transponder device centrally located in a utility space is paired with a second terminal transponder device located on a telephone subscriber premises. The devices cooperate in converting a video signal into a form suitable for transmission on telephone lines and deconverting that signal into a form suitable for reception by consumer video equipment. The methods and devices discussed differ in placement of the central device, and in the particular method of signal conversion.

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