Hotel/motel power load control and bilateral signalling apparatu

Details Hotel/motel power load control and bilateral signalling apparatu Hotel/motel power load control and bilateral signalling apparatu

1978-08-07

1982-11-23

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

329124, 455 3, 455 5, H04N 710

Patent

active

043608280

ABSTRACT:
Head end apparatus delivers video signals, e.g., premium and standard television programming to distinct locations such as hotel/motel rooms, an apartment or the like via a common MATV cable. The head end also transmits digital messages to receivers at each room location which are recovered via a phase detector and supplied to predetermined appropriate output utilization apparatus via a multiplexer and microprocessor. Similarly, messages generated at each room are transmitted upstream to the head end via the cable, employing a portion of the phase detector apparatus.
In accordance with varying aspects of the present invention, the bilaterally propagating digital messages may comprise status controls for controlled equipment, e.g., electrical loads; and/or may comprise a data exchange for a communications application. Further, the room transmission apparatus is adapted to fail, if at all, in a noninterfering mode which does not comprise overall system operability.

REFERENCES:
patent: 2917622 (1959-12-01), Wales, Jr. et al.
patent: 3069625 (1962-12-01), Morita et al.
patent: 3676580 (1972-07-01), Beck
patent: 3733430 (1973-05-01), Thompson et al.
patent: 3752908 (1973-08-01), Boenke et al.
patent: 3778716 (1973-12-01), Stokes
patent: 3803491 (1974-04-01), Osborn
patent: 4213096 (1980-02-01), Daniel, Jr.
patent: 4245245 (1981-01-01), Matsumoto et al.

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