Copyright protection for digital signal recording and/or reprodu

Details Copyright protection for digital signal recording and/or reprodu Copyright protection for digital signal recording and/or reprodu

1994-09-27

1996-11-26

Chin, Tommy P.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

360 60, H04N 576, G11B 1504, G11B 1904

Patent

active

055791204

ABSTRACT:
A digital image signal recording and/or reproduction method and/or apparatus by which a copyright protection signal employed by a software tape for use with an analog video tape recorder can be recorded and/or reproduced with a digital video tape recorder of the compression type. When a copyright protection signal detection circuit detects a disturbing signal inserted in a video signal, an output of an analog to digital converter is stored into a memory. An H counter supplies a line number upon detection of the disturbing signal as LINES data to a line pack processing microcomputer. The data of the memory are supplied as line data to the line pack processing microcomputer under the switching control of a switching circuit. Using the received data, the line pack processing microcomputer produces pack data and sends the pack data to a format converter of a digital video tape recorder.

REFERENCES:
patent: 4855827 (1989-08-01), Best
patent: 5295188 (1994-03-01), Wilson et al.
patent: 5315448 (1994-05-01), Ryan
patent: 5402488 (1995-03-01), Karlock
patent: 5418853 (1995-05-01), Kanota et al.

Affiliated with

Also associated with

Rating

Copyright protection for digital signal recording and/or reprodu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Copyright protection for digital signal recording and/or reprodu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copyright protection for digital signal recording and/or reprodu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1977186