Wireless two-way communication system between center and user st

Details Wireless two-way communication system between center and user st Wireless two-way communication system between center and user st

1997-06-26

1999-08-03

Grant, Chris

Telecommunications

Interference signal transmission

455 31, 348 12, H04N 7173

Patent

active

059337621

ABSTRACT:
The present invention is directed to a communication system which can be utilized to complement an existing cable television system in which a central office transmits signals along a coaxial cable to a user unit through a tap. The communication system features a central transmitting/receiving unit for wirelessly transmitting first signals generated at the central office and for receiving second signals. A first response unit which may be connected to the tap will receive the first signals wirelessly transmitted from the central transmitting/receiving unit, and will generate and wirelessly transmit the second signals to be received by the central transmitting/receiving unit. A further second response unit may be connected to the user unit, and the second response unit may generate a third signal to be wirelessly received by the first response. The third signal may be used to control the tap connected to the first response unit. Further, a relay unit may be provided to facilitate transmission between the first and second response units in the central transmitting/receiving unit.

REFERENCES:
patent: 5257099 (1993-10-01), Morales-Garza
patent: 5394559 (1995-02-01), Hemmie et al.
patent: 5555015 (1996-09-01), Aguayo, Jr. et al.
patent: 5590173 (1996-12-01), Beasley
patent: 5675372 (1997-10-01), Aguayo, Jr. et al.
patent: 5737363 (1998-04-01), Dinkins

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