Caption signal recording and reproducing control device in video

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching

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Details

348468, 358335, 360 331, H04N 708, G11B 2000

Patent

active

054734819

ABSTRACT:
This invention relates to a caption signal recording and reproducing control device of a video cassette recorder which can record and reproduce those caption signals recorded on a tape and transmitted from a broadcasting station, selectively. The device includes a broadcasting signal demodulation part for demodulating broadcasting signals, a first selection switch for selecting one source of signals either from the demodulated signals in the broadcasting signal demodulation part or other input signals, an image processing part having an image recording part and an image reproduction part, a second selection switch for selecting so as to be able to record image signals of the image recording part in recording mode and reproduce image signals recorded on a tape in reproduction mode, a third selection switch for selecting one source of image signals from output signals of the image recording part and the image reproduction part, a fourth selection switch for selecting one source of signals from the image signals of the image reproduction part and the broadcasting signal demodulation part, a caption signal demodulation part for demodulating caption signals of the image signals selected by the fourth selection switch, a first mixer part for mixing the caption signals of the caption signal demodulation part with the image signals of the broadcasting signal demodulation part, and a second mixer part for mixing the caption signals of the caption signal demodulation part with the image signals selected by the third selection switch.

REFERENCES:
patent: 5299006 (1994-03-01), Kim
patent: 5311311 (1994-05-01), Harigai et al.
patent: 5347404 (1994-09-01), Han
patent: 5375160 (1994-12-01), Guidon et al.

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