Data recording apparatus and method for preventing illegal copyi

Details Data recording apparatus and method for preventing illegal copyi Data recording apparatus and method for preventing illegal copyi

1996-08-30

1999-11-23

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 95, 386102, H04N 591

Patent

active

059914998

ABSTRACT:
Unauthorized copying of a digital video program is prevented by designating a first block and a second block of data in a bit stream encoded by a fixed length code. A portion of the first block is selected as key data and inserted into the second block to indicate that the digital video program is a copy and to prevent illegal copying.

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