Restricted access remote control unit

Details Restricted access remote control unit Restricted access remote control unit

1995-12-06

1997-09-02

Kostak, Victor R.

Television

Special applications

Manufacturing

348734, H04N 544

Patent

active

056637560

ABSTRACT:
A device for restricting access to certain programs. The RCU comprises an entry pad, a controller, a read-only-memory ("ROM"), and an transmission system.

REFERENCES:
patent: 4626847 (1986-12-01), Zato
patent: 4703359 (1987-10-01), Rumbolt et al.
patent: 4718107 (1988-01-01), Hayes
patent: 4825200 (1989-04-01), Evans et al.
patent: 4866434 (1989-09-01), Keenan
patent: 4912463 (1990-03-01), Li
patent: 4930158 (1990-05-01), Vogel
patent: 4931790 (1990-06-01), Kobayashi et al.
patent: 5033085 (1991-07-01), Rew
patent: 5065235 (1991-11-01), Iijima
patent: 5187469 (1993-02-01), Evans et al.

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