Television broadcast system for selective transmission of viewer

Details Television broadcast system for selective transmission of viewer Television broadcast system for selective transmission of viewer

1989-10-10

1991-02-19

Buczinski, Stephen C.

Cryptography

Key management

Having particular key generator

380 5, 358 85, 358 86, 455 3, 455 5, H04N 7167

Patent

active

049950789

ABSTRACT:
A television broadcast system using land lines is provided for real-time transmission of a viewer-chosen program at a viewer requested time to the requesting viewer's television receiver. The preferred method includes the steps of providing a collection of stored programs, communicating the requesting viewer's choice of a program chosen from the collection and a requested time for viewing the chosen program, selecting the chosen program from a collection, transmitting the chosen program at the requested time for viewing on the requesting viewer's receiver, and preventing intelligible viewing of the chosen program on other receivers.

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Nakajima, "Enhanced Video Response System: VRS Phase II"; Japan Telecommunications Review (vol. 21, No. 3; 7/79; pp. 209-217).

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