Inventor
OKUMURA NAOJI
JP33 patents
Patents
33 patentsUS6429899B1Aug 6, 2002
Video display apparatus with scan conversion and reversion and a video display method using scan conversion and reversion
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD103 citations97
US6795588B1Sep 21, 2004
Noise detector, noise detection method, signal processor and signal processing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92
US6738528B1May 18, 2004
Block noise detector and block noise eliminator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations92
US5760840AJun 2, 1998
Apparatus for distinguishing between a plurality of video signal types, apparatus for automatic aspect ratio determination and television receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US5359369AOct 25, 1994
Gradation correcting apparatus for correcting gradation of video signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US5315389AMay 24, 1994
Intensity correction device for providing a correction signal for automatically correcting an intensity of a video signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US5388168AFeb 7, 1995
Picture quality improving circuit using a cumulative histogram
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations91
US4998283AMar 5, 1991
Screen device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations91
US5280345AJan 18, 1994
Jitter correction circuit for reducing jitter components of a luminance signal in video information compression
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations86
US6989872B2Jan 24, 2006
Image distortion correcting device and image distortion correcting method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations82
US5831684ANov 3, 1998
Subpicture image signal vertical compression circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5686970ANov 11, 1997
Average luminance level detection apparatus and aspect ratio auto-discrimination apparatus for a television signal using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5459525AOct 17, 1995
Video signal converting device and noise eliminator used therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US5394194AFeb 28, 1995
Gain control circuit and gradation correcting apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations73
US5296941AMar 22, 1994
Gradation compensation apparatus of video image
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations73
US5247361ASep 21, 1993
Outline enchancing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US6424383B1Jul 23, 2002
Apparatus for correcting vertical contours
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations72
US5715010AFeb 3, 1998
Video signal compression apparatus for horizontal compression of a video signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations72
US5363384ANov 8, 1994
Audio signal demodulation circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations72
US5138455AAug 11, 1992
Video signal processing circuit for compressed picture insertion function of television receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations72
US5629962AMay 13, 1997
Phase locked loop circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6529176B1Mar 4, 2003
Image display and horizontal speed modulator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US5760837AJun 2, 1998
Video signal compression apparatus for horizontal compression of a video signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US5666165ASep 9, 1997
Video signal compression apparatus for horizontal compression of a video signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US5270815ADec 14, 1993
Image compression processing apparatus having means for removing jitter contained at boundary between image and mask portions
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations61
US5231477AJul 27, 1993
Comb filter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61
US5163053ANov 10, 1992
Audio signal demodulation circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US5192996AMar 9, 1993
Video chroma signal processing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60
US5121212AJun 9, 1992
Audio signal demodulating circuit with reduced power consumption
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations60
US5500682AMar 19, 1996
Memory equipment for writing/reading a defective video signal in a FIFO memory device consectively
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations56
US5703653ADec 30, 1997
Video signal compression apparatus for horizontal compression of a video signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51
US5097333AMar 17, 1992
Interframe deinterleave switching circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations51
US6912015B1Jun 28, 2005
Video display apparatus with vertical scan velocity modulation and video display method thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations40