Television receiver adaptable for descrambler module

Details Television receiver adaptable for descrambler module Television receiver adaptable for descrambler module

1981-11-30

1985-04-02

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Cabinet, housing, or chassis structure

455355, 455603, 358114, 3581941, 358254, H04B 108, H04N 564, H04N 544, H04N 716

Patent

active

045092109

ABSTRACT:
A television receiver is adapted for use of standardized plug-in descramblers which are coupled to the receiver by a connector. The connector is accessible from the exterior of the housing of the receiver without significant disassembly. The connector has terminals electrically coupled to various key points in the receiver. Each type of descrambler is adapted for descrambling a particular type of scrambled signal, and for that purpose uses certain of the connector terminals. The plug-in descrambler also selects the operating frequency characteristics of the tuner.

REFERENCES:
patent: 2691724 (1954-10-01), Hoffman
patent: 3201653 (1965-08-01), Nuss
patent: 3272920 (1966-09-01), Meurer
patent: 3304502 (1967-02-01), Paddock
patent: 3328645 (1967-06-01), Becker
patent: 3555249 (1971-01-01), Yastrow
patent: 3708618 (1973-01-01), Hofmeister et al.
patent: 4012672 (1977-03-01), Douglass et al.
patent: 4070628 (1978-01-01), Funabashi
patent: 4081831 (1978-03-01), Tang et al.
patent: 4131851 (1978-12-01), Martiny et al.
patent: 4297726 (1981-10-01), Nicholson et al.
patent: 4343042 (1982-08-01), Schrock et al.
patent: 4368540 (1983-01-01), Carlson et al.

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