Apparatus for copying a signal recorded on a video recording med

Details Apparatus for copying a signal recorded on a video recording med Apparatus for copying a signal recorded on a video recording med

1997-08-11

2000-06-20

Garber, Wendy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 6, 386 13, H04N 979

Patent

active

060787201

ABSTRACT:
An apparatus for picking up a video signal recorded on a recording medium and copying a frequency modulated signal without demodulation. In the apparatus, a high-pass filter separates a high-frequency modulated luminance signal from the modulated video signal by setting a cutoff frequency higher than a frequency band of a low frequency converted color signal. A limiter receives an output signal of the high-pass filter and limits variation of the amplitude of the output of the high-pass filter to a predetermined level. A first feature compensator receives the output signal of the limiter and corrects high frequency characteristics of the signal. A low-pass filter separates a low frequency converted color signal and a low-frequency modulated luminance signal, each having a frequency that is lower than the cutoff frequency, from the modulated video signal. A gain controller receives an output signal of the low-pass filter and maintains the received signal at a constant level. A second feature compensator receives an output signal of the gain controller and corrects low frequency characteristics of the output signal of the gain controller. A mixer mixes an output signal of the first feature compensator with the output signal of the second feature compensator, wherein the mixed signal is output and recorded on a recording medium by a video head.

REFERENCES:
patent: 4344083 (1982-08-01), Srivastava
patent: 4647983 (1987-03-01), Ota
patent: 4792862 (1988-12-01), Tsusue et al.
patent: 5097345 (1992-03-01), Ando et al.
patent: 5194963 (1993-03-01), Dunlap et al.
patent: 5510898 (1996-04-01), Yoshimura et al.

Affiliated with

Also associated with

Rating

Apparatus for copying a signal recorded on a video recording med does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for copying a signal recorded on a video recording med, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for copying a signal recorded on a video recording med will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1860808