Television – Format conversion – Changing number of lines for standard conversion
Patent
1993-06-21
1995-01-10
Kostak, Victor R.
Television
Format conversion
Changing number of lines for standard conversion
348441, H04N 702
Patent
active
053811836
ABSTRACT:
A motion-adaptive scanning-line conversion circuit which converts part or the entirety of a first video signal into a second video signal. The circuit includes a data reducing circuit, such as a low pass filter and a decimator, which lowers the sampling frequency of the first video signal to reduce the amount of data in the first video signal. The conversion circuit can also include a detection circuit which detects the vertical edge of a stationary part of a picture represented by the reduced first video signal, and a motion detection circuit which determines the amount of motion of the pixels in the reduced first video signal. Based upon the detection of a vertical edge, a selection circuit selects between an output of an inter-field scanning-line conversion circuit and an intra-field scanning-line conversion circuit operating on the reduced first video signal and the first video signal, respectively.
REFERENCES:
patent: 4947251 (1990-08-01), Hentschel
patent: 4984077 (1991-01-01), Uchida
patent: 5032899 (1991-07-01), Sato
patent: 5179443 (1993-01-01), Sugimori et al.
patent: 5227866 (1993-07-01), Sarugaku et al.
patent: 5243433 (1993-09-01), Owashi et al.
"A Motion-Adaptive High-Definition Converter for NTSC Color TV Signals" by Achiha, et al., SMPTE Journal, May 1984, Presented at the 13th Intl. TV Symposium in Switzerland on May 30, 1983, pp. 470-476.
"Experiment with Second Generation EDTV System", by Takayama, et al. SMPTE Preprint No. 131-09, Oct. 1989, Presented at the 131st SMPTE Conference in Los Angeles, Society of Motion Picture and Television Engineers, pp. 1-18.
"A Decoder for a Letter-Box-Type Wide-Aspect EDTV System", by H. Ito et al., SMPTE Journal, Nov. 1992. Presented at the 133rd SMPTE Technical Conference in Los Angeles (paper No. 133-67) on Oct. 28, 1991, pp. 790-796.
Hasegawa Hitoshi
Ishizuka Mitsuru
Ohnishi Hiroshi
Tuzi Masayuki
Yamaguchi Noriyuki
Kostak Victor R.
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Motion-adaptive scanning-line conversion circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motion-adaptive scanning-line conversion circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion-adaptive scanning-line conversion circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-854211