Television – Format conversion – Progressive to interlace
Patent
1994-10-19
1996-03-05
Kostak, Victor R.
Television
Format conversion
Progressive to interlace
348448, H04N 701
Patent
active
054971993
ABSTRACT:
An apparatus for processing a progressive scanning video signal comprising a progressive to interlaced signal converter is provided. An input progressive scanning video signal is switched over alternately every one horizontal scanning line of progressive scanning so as to be divided into a main original signal and a sub-original signal. A time interval of the main original signal is expanded so as to convert the main original signal into a main signal having a period of horizontal scanning of interlaced scanning, whereas a time interval of the sub-original signal is expanded so as to convert the sub-original signal into a sub-signal having the period of the horizontal scanning of the interlaced scanning. Further, a synchronizing process is performed on the time-expanded main signal and the time-expanded sub-signal so as to output an interlaced scanning signal including the main signal and the sub-signal in synchronous with each other, and so that the main signal and the sub-signal start respectively from a pair of two horizontal lines which is continuously inputted after the first horizontal scanning line of the input progressive scanning video signal.
REFERENCES:
patent: 4620225 (1986-10-01), Wendland et al.
patent: 5031042 (1991-07-01), Rabii
patent: 5081532 (1992-01-01), Rabii
patent: 5093721 (1992-03-01), Rabii
patent: 5124794 (1992-06-01), Rabii
patent: 5307164 (1994-04-01), Dong-Il
patent: 5327235 (1994-07-01), Richards
patent: 5337089 (1994-08-01), Fisch
patent: 5402186 (1995-03-01), Kawai
Kimata et al., "NTSC-Compatible Wide Aspect Image Transmission Method"--NTV Mode 1.5--, ITE Technical Report vol. 15, No. 18, pp. 37-42, BCS'91-7, Mar. 1991.
Hori et al., "Component Studio System for EDTV", ITC Technical Report vol. 17, No. 7, pp. 7-12, BCS'93-2, Jan. 1993.
Asada Ryoji
Sekimoto Kunio
Kostak Victor R.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Apparatus for processing progressive scanning video signal compr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for processing progressive scanning video signal compr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for processing progressive scanning video signal compr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1415968