Video reproducing apparatus having filter circuit of automatic f

Details Video reproducing apparatus having filter circuit of automatic f Video reproducing apparatus having filter circuit of automatic f

1995-11-22

1997-04-08

Tran, Thai Q.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

H04N 979, H04N 591

Patent

active

056193408

ABSTRACT:
A video cassette recorder has a plurality of filters for separating a reproduced audio signal into a left channel component and a right channel component. The plurality of filters are provided to each of the left and right channels. A phase comparator compares phases of input and output signals of one of the plurality of filters in at least one of the left and right channels, so that an error signal is produced. The error signal is supplied to each of the plurality of filters to control a frequency characteristic of each of the plurality of filters.

REFERENCES:
patent: 4438405 (1984-03-01), Yazawa et al.
patent: 5023491 (1991-06-01), Koyama

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