Method and apparatus for recording and reproducing digital video

Details Method and apparatus for recording and reproducing digital video Method and apparatus for recording and reproducing digital video

1996-09-30

1999-05-25

Garber, Wendy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

380 5, 380 22, H04N 591, H04N 7167, H04K 100

Patent

active

059076550

ABSTRACT:
An apparatus records and reproduces digital video signals on a tape such that recording by another digital VTR or another analog VTR can be blocked, both through a digital interface and an analog interface, to provide a copy protection through various techniques, such as AGC or color striping. The digital recording format includes a recording area for encoded video signals and a recording area for auxiliary information configured in packs. A disturbance signal generating flag is included in an auxiliary information pack and recorded in the auxiliary information recording area. Based on the status of the flag, a disturbance signal may be inserted as a copy protection signal that is reproduced from the encoded video signals into the analog video signal.

REFERENCES:
patent: 4652942 (1987-03-01), Eto
patent: 5315448 (1994-05-01), Ryan
patent: 5418853 (1995-05-01), Kanota et al.
patent: 5579120 (1996-11-01), Oguro
patent: 5673357 (1997-09-01), Shima

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