Television – Basic receiver with additional function – Multimode
Patent
1992-06-08
1994-11-15
Powell, Mark R.
Television
Basic receiver with additional function
Multimode
348564, H04N 546, H04N 5262, H04N 5445
Patent
active
053652762
ABSTRACT:
The present invention sequentially selects and outputs one of a plurality of video image sources 1 by an image signal source switching means 2, processes the video images by thinning circuit portions 3 and 4, writes in the video data into an image memory 5 and display the images on an image display device 6. Depending upon the detection output of an aspect ratio detecting circuit portion 12, which detects an aspect ratio of an image display of each of the video image source 1, thinning ratios of the thinning circuits 3 and 4 and a write in control circuit portion 9 for the image memory are switched in order to obtain a multiscreen display circuit which can display video signal sources having different aspect ratios.
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patent: 5029326 (1991-07-01), Tabata
patent: 5065243 (1991-11-01), Katagiri
patent: 5146335 (1992-09-01), Kim et al.
patent: 5159450 (1992-10-01), Senso et al.
patent: 5161012 (1992-11-01), Choi
patent: 5166801 (1992-11-01), Yoshikawa
Tsuji et al., "Multi-Functioning of Clear Vision Adapted Television Receiver", 1990 Television Association Annual Convention Pre-View 20-11, pp. 357-358.
Sugimoto, et al., "Digital Processing Technology in Television 6. Special Effect", Television Association paper, vol. 33, No. 4, pp. 301-310, 1979.
Imai Kiyoshi
Miyoshi Keiya
Nio Yutaka
Okawa Mitsuji
Sakamoto Ken
Grant Chris
Matsushita Electric - Industrial Co., Ltd.
Powell Mark R.
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