Television – Format conversion – Line doublers type
Patent
1993-12-27
1995-08-22
Chin, Tommy P.
Television
Format conversion
Line doublers type
348458, 348459, H04N 701
Patent
active
054444942
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 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), Tamaka 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.
patent: 5305112 (1994-04-01), Yamamoto et al.
Araya Masahiro
Iwamura Hiroshi
Shioda Takehiko
Yamamoto Yukinori
Chin Tommy P.
Pioneer Electronic Corporation
Truong Khoi
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