Video signal recording/reproducing system for recording and repr

Details Video signal recording/reproducing system for recording and repr Video signal recording/reproducing system for recording and repr

1991-06-26

1994-04-19

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358334, 348441, 348491, H04N 979

Patent

active

053051122

ABSTRACT:
A video signal recording and reproducing system enables recording and reproducing of a video signal with high quality. The system includes a recording system for recording the video signal on a record medium by means of a median filter and a reproducing system for reproducing the video signal from the record medium. The recording system separates a brightness signal and a color signal from an interlaced scanning signal. The recording system divides picture elements of each line into two phases by sorting the elements such that an element is put into one phase and the next element into the other. The recording system then carries out two-dimensional subsampling to the brightness signal and the color signal to reduce the amount of data. Then, the recording system compresses and time-division multiplexes the brightness signal and the color signal to provide a video signal to be recorded onto a record medium. The reproducing system separates the brightness signal and the color signal from a video signal read out from the record medium, and then interpolates picture elements into the two signals to obtain sequential scanning RGB signals for 525 scanning lines.

REFERENCES:
patent: 5018010 (1991-05-01), Masumoto
patent: 5029001 (1991-07-01), Tanaka et al.
patent: 5029002 (1991-07-01), Citta et al.
patent: 5031040 (1991-07-01), Maruyama
patent: 5049994 (1991-09-01), Nakamura
patent: 5117289 (1992-05-01), Farley et al.

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