Television – Format conversion – Field rate type flicker compensating
Patent
1998-04-27
1999-12-28
Kostak, Victor R.
Television
Format conversion
Field rate type flicker compensating
348459, 348910, H04N 701
Patent
active
060088559
ABSTRACT:
A flickerless television receiver displays image signals having the horizontal/vertical scanning frequencies thereof increased to two times the horizontal/vertical scanning frequencies of the broadcast signals to be received. Flickerless display performance can be confirmed with a single television receiver by generating signals to extract every other field for image displaying and showing two kinds of image signals, namely double-speed image signal and extracted image signal. A display unit displays double-speed image signals having horizontal and vertical scanning frequencies of image signals increased to two times by conversion, wherein extracted image signals formed by extracting every other field or frame from screen images are generated and two kinds of images formed of the double-speed image signals and extracted image signals are simultaneously displayed on one screen.
REFERENCES:
patent: 4713687 (1987-12-01), Shimizu et al.
patent: 5315327 (1994-05-01), Suzuki
R. Kays, "Flimmerreduktion im Fernsehempfanger" Jan. 1, 1989, vol. 43, No. 3, pp. 119-124.
European Search Report for International Application No. 98107470.1 dated Apr. 21, 1999.
Ikai Akira
Uchida Yoshihisa
Kostak Victor R.
Matsushita Electric - Industrial Co., Ltd.
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