Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1993-02-05
1995-05-16
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358316, 358324, 358326, H04N 989
Patent
active
054165997
ABSTRACT:
An apparatus for reproducing video signals from a magnetic recording medium using first and second magnetic heads mutually having different azimuth angles. Here, the video signal is obtained by frequency-multiplexing of a low frequency-converted chrominance signal which is obtained by converting into a low frequency range and phase rotation of a chrominance signal per horizontal scanning period, and a modulated luminance signal, and recorded in the magnetic recording medium. One of video signals picked up by the magnetic heads is selected to obtain a chain of reproduced video signal. Discontinuity is detected if there is in the phase rotation of the low frequency-converted chrominance signal in the reproduced video signal. The low frequency-converted chrominance signal in the reproduced video signal is reconverted into a high frequency range chrominance signal having no phase rotation. The phase rotation of the low frequency-converted chrominance signal in the reproduced video signal is forcibly corrected when the discontinuity is detected in the phase rotation.
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Takeshita Hiroshi
Ubukata Tsuneo
Chin Tommy P.
Nguyen Huy
Victor Company of Japan Ltd.
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