Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-06-27
1999-11-09
Tran, Thai
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
348643, 348644, 386 44, 386 1, H04N 970
Patent
active
059829753
ABSTRACT:
A video signal copying apparatus for copying a signal recorded on a recording medium onto other recording media is provided. The video signal copying apparatus includes a first filter for blocking a color signal and passing a luminance signal of a video signal detected from a video signal recording medium, a second filter for passing only the color signal of the video signal, a burst detection signal generator for generating a burst detection signal for detecting a burst signal, a color signal determiner for generating a color killer signal when a color signal does not exist in the video signal, a peak level detector for detecting the peak level of the input signal over all frequency bands when the color killer signal is generated, or over only a burst detection signal section when the color killer signal is not generated, by receiving the filtered color signal, a voltage-controlled amplifier for automatically controlling the gain of the color signal in correspondence to the detected peak level, and a mixer for mixing the filtered luminance signal and the gain-controlled color signal to output a video signal to be recorded via a recording amplifier. Therefore, loss of a luminance signal which is part of a low-frequency component can be prevented when copying a black and white signal, thereby improving picture quality.
REFERENCES:
patent: 3945033 (1976-03-01), Tanihara et al.
patent: 3975759 (1976-08-01), Taniguchi et al.
patent: 4068256 (1978-01-01), Tsuchiya et al.
patent: 4510530 (1985-04-01), Miura et al.
patent: 4691247 (1987-09-01), Honjo et al.
patent: 5032925 (1991-07-01), Ganse et al.
patent: 5194963 (1993-03-01), Dunlap et al.
patent: 5212561 (1993-05-01), Kim
patent: 5245439 (1993-09-01), Kim
patent: 5389979 (1995-02-01), Jeong
patent: 5416649 (1995-05-01), McSweeney et al.
Boccio Vincent F.
Samsung Electronics Co,. Ltd.
Tran Thai
LandOfFree
Video signal copying apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video signal copying apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal copying apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1467335