Inventor
KAWAGUCHI KUNIO
JP44 patents
⚠️ This page may combine multiple inventors who share the name “KAWAGUCHI KUNIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
36 patentsUS6408097B1Jun 18, 2002
Picture coding apparatus and method thereof
SONY CORP74 citations96
US5930394AJul 27, 1999
Picture coding apparatus and method thereof
SONY CORP32 citations96
US5666164ASep 9, 1997
Image signal converting apparatus
SONY CORP77 citations96
US6539119B1Mar 25, 2003
Picture coding apparatus and method thereof
SONY CORP23 citations93
US6016164AJan 18, 2000
Image signal interpolating apparatus
SONY CORP28 citations93
US5966179AOct 12, 1999
Information signal encoding apparatus, encoding method thereof, information signal decoding method, and information signal record medium thereof
SONY CORP20 citations93
US5940132AAug 17, 1999
Image signal converting apparatus
SONY CORP37 citations93
US5878168AMar 2, 1999
Method and apparatus for picture encoding and decoding
SONY CORP21 citations93
US5825313AOct 20, 1998
Information signal encoding apparatus, encoding method thereof, information signal decoding method, and information signal record medium thereof
SONY CORP25 citations93
US5734433AMar 31, 1998
Picture encoding apparatus, picture encoding method, picture encoding and transmitting method, and picture record medium
SONY CORP19 citations93
US5703652ADec 30, 1997
Information signal encoding system and method for adaptively encoding an information signal
SONY CORP29 citations93
US5444487AAug 22, 1995
Adaptive dynamic range encoding method and apparatus
SONY CORP38 citations93
US5404178AApr 4, 1995
Noise eliminating circuit
SONY CORP41 citations93
US6519365B2Feb 11, 2003
Encoder, decoder, recording medium, encoding method, and decoding method
SONY CORP19 citations84
US5781238AJul 14, 1998
Information signal encoding apparatus, encoding method thereof, information signal decoding method, and information signal record medium thereof
SONY CORP16 citations82
US5767986AJun 16, 1998
Picture encoding apparatus and method
SONY CORP14 citations82
US5295130AMar 15, 1994
Apparatus and method for signal reproduction
SONY CORP18 citations82
US6285714B1Sep 4, 2001
Image signal interpolating apparatus
SONY CORP8 citations74
US6219456B1Apr 17, 2001
Picture coding apparatus and method thereof
SONY CORP3 citations74
US6195464B1Feb 27, 2001
Picture coding apparatus and method thereof
SONY CORP4 citations74
US5886794AMar 23, 1999
Picture encoding apparatus
SONY CORP6 citations74
US5870434AFeb 9, 1999
Apparatus and method for quantizing a digital signal based on quantizing steps including odd-numbered steps
SONY CORP10 citations74
US5841375ANov 24, 1998
Information signal encoding apparatus, encoding method thereof, information signal decoding method, and information signal medium thereof
SONY CORP5 citations74
US5706009AJan 6, 1998
Quantizing apparatus and quantizing method
SONY CORP7 citations74
US7738556B2Jun 15, 2010
Apparatus and method for estimating motion vector with gradient method
SONY CORP7 citations73
US6864997B2Mar 8, 2005
Picture encoding apparatus and method
SONY CORP2 citations63
US6320910B2Nov 20, 2001
Apparatus for hierarchical encoding of digital image signals with improved encoding efficiency
SONY CORP2 citations63
US6108451AAug 22, 2000
Picture coding apparatus and method thereof
SONY CORP2 citations63
US6014174AJan 11, 2000
Picture encoding apparatus, picture encoding method, picture encoding and transmitting method, and picture record medium
SONY CORP1 citations63
US5956089ASep 21, 1999
Picture encoding apparatus, picture encoding method, picture encoding and transmitting method, and picture record medium
SONY CORP1 citations63
US8385602B2Feb 26, 2013
Image processing device method, program, and recording medium for improving detection precision of a motion vector
SONY CORP4 citations62
US7848427B2Dec 7, 2010
Apparatus and method for determining motion vector with effective pixel gradient
SONY CORP5 citations62
US6421144B2Jul 16, 2002
Picture encoding apparatus and method
SONY CORP0 citations52
US6324304B1Nov 27, 2001
Picture coding apparatus and method thereof
SONY CORP0 citations52
US6072837AJun 6, 2000
Quantizing apparatus and quantizing method
SONY CORP1 citations52
US10114492B2Oct 30, 2018
Information processing device, information processing method, and program
SONY CORP1 citations49