Apparatus for recording and reproducing video signals with recor

Details Apparatus for recording and reproducing video signals with recor Apparatus for recording and reproducing video signals with recor

1992-12-01

1997-12-16

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 33, 348392, H04N 979

Patent

active

056994702

ABSTRACT:
In an apparatus for processing an input video signal that includes a chrominance signal and a luminance signal, the luminance signal is frequency-modulated and the chrominance signal is subsampled, preferably by field-offset subsampling, whereupon, the subsampled chrominance signal is frequency-converted to a lower frequency band than the frequency band of the frequency-modulated luminance signal. The frequency-modulated luminance signal and the frequency-converted subsampled chrominance signal are then combined and the resulting combined signal is recorded on a recording medium such as a magnetic tape. During reproduction of the recorded signal, interpolation among frames is used to reconstruct the chrominance signal. Recording of the frequency-converted subsampled chrominance signal allows for space-efficient recording of the video signal while providing a reproduced chrominance signal that has a relatively wide bandwidth, thereby permitting improved color reproducibility.

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