Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-10-08
1993-07-27
Peng, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
350 86, 455 61, H04N 704, H04N 710
Patent
active
052314944
ABSTRACT:
A plurality of television signals are transmitted and selectively received on a single television channel allocation. Headend apparatus compresses a set of television signals, such as a main program signal and a plurality of different demographically targeted commercials. The plurality of compressed television signals are combined into a combined signal for transmission on a single television channel allocation. A receiver receiving the combined signal identifies characteristics of a television viewer, and selects a particular one of the compressed television signals from the received combined signal depending on the viewer characteristics. The retrieved signal is decompressed for use by a video appliance.
REFERENCES:
patent: 3639686 (1972-02-01), Walker et al.
patent: 3975583 (1976-08-01), Meadows
patent: 4573072 (1986-02-01), Freeman
patent: 4602279 (1986-07-01), Freeman
patent: 4805020 (1989-02-01), Greenberg
patent: 4903126 (1990-02-01), Kassatly
patent: 4967273 (1990-10-01), Greenberg
General Instrument Corporation
Lipsitz Barry R.
Peng John K.
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