Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-05-23
1998-09-29
Au, Amelia
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
360 60, 380 22, 386 94, H04N 9825
Patent
active
058156305
ABSTRACT:
A high-speed tape dubbing method and apparatus for dubbing a signal recorded on a master tape onto slave tapes running at a speed N (for example, 3) times a standard tape running speed, which is capable of inserting a copy guard signal without degradation of image quality, during a time period in which the signal is processed in digital form and a copy guard signal inserting apparatus for use in the tape dubbing apparatus are provided. The copy guard signal is inserted by digitally processing the signal by the copy guard signal inserting apparatus during a vertical blanking period of a digital luminance signal whose speed is made N times the standard speed by a signal arrangement converter/digital rate converter. The digital luminance signal to which the copy guard signal is inserted is converted into an analog signal by a D/A converter and recorded by respective slave recording apparatuses together with the chroma signal.
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Au Amelia
Lee Y.
Meller Michael N.
Victor Company of Japan Ltd.
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