Transmitting and receiving apparatus for permitting the transmis

Details Transmitting and receiving apparatus for permitting the transmis Transmitting and receiving apparatus for permitting the transmis

1981-05-29

1984-02-07

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358117, 358123, 3581931, H04N 716, H04K 104

Patent

active

044306695

ABSTRACT:
During non-program hours, a subscription broadcast television station broadcasts in place of programming the time of a future special broadcast as well as other information to enable decoding circuitry of subscribers. The receiver at the subscriber's residence tunes during non-broadcast hours all subscription television broadcast frequencies, and compares the subscriber's identification number with information being broadcast. When a coincidence between the received identification number being broadcast, and a stored identification number is obtained, the time of the future special broadcast is stored in a memory. At the time of a subscription broadcast identified in the memory, tuning data is recalled from a memory for tuning the receiver to receive the special broadcast. The subscriber's decoding apparatus is also activated permitting descrambling of the special program broadcast.

REFERENCES:
patent: 3696297 (1972-10-01), Otero
patent: 3886302 (1975-05-01), Kosco
patent: 3968327 (1976-07-01), Gregg
patent: 4008369 (1977-02-01), Theurer et al.
patent: 4058830 (1977-11-01), Guinet et al.
patent: 4068264 (1978-01-01), Pires
patent: 4079419 (1978-03-01), Siegle et al.
patent: 4163254 (1979-07-01), Block et al.
patent: 4225884 (1980-09-01), Block et al.

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