Inventor
KOYANAGI HIDEKI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “KOYANAGI HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
31 patentsUS6188700B1Feb 13, 2001
Method and apparatus for encoding MPEG signals using variable rate encoding and dynamically varying transmission buffers
SONY CORP108 citations98
US5557332ASep 17, 1996
Apparatus and method for reproducing a prediction-encoded video signal
SONY CORP231 citations97
US6621939B1Sep 16, 2003
Scene description generating apparatus and method, object extracting method, and recording medium
SONY CORP62 citations96
US6014171AJan 11, 2000
Image encoding and decoding methods and apparatus utilizing the elimination of invalid code
SONY CORP52 citations96
US5991499ANov 23, 1999
Data recording apparatus and method for preventing illegal copying
SONY CORP43 citations96
US5771357AJun 23, 1998
Encoding/decoding fields of predetermined field polarity apparatus and method
SONY CORP83 citations96
US5471450ANov 28, 1995
Digital data reproducing apparatus and method employing buffer memories for error compensation and accomodating differences in reproduction and processing rates
SONY CORP85 citations96
US5291486AMar 1, 1994
Data multiplexing apparatus and multiplexed data demultiplexing apparatus
SONY CORP107 citations96
US6504850B1Jan 7, 2003
Encoded signal transmission method and encoded signal transmission apparatus
SONY CORP20 citations93
US6349115B1Feb 19, 2002
Digital signal encoding apparatus, digital signal decoding apparatus, digital signal transmitting apparatus and its method
SONY CORP25 citations93
US6160915ADec 12, 2000
Coded signal transmission method and apparatus
SONY CORP21 citations93
US6115533ASep 5, 2000
Digital video copy protection system
SONY CORP21 citations93
US5703859ADec 30, 1997
Digital video copy protection system
SONY CORP29 citations93
US7031317B2Apr 18, 2006
Transmission apparatus and transmission method
SONY CORP21 citations92
US6628713B1Sep 30, 2003
Method and device for data encoding and method for data transmission
SONY CORP39 citations92
US7610605B2Oct 27, 2009
Method and apparatus for conversion and distribution of data utilizing trick-play requests and meta-data information
SONY CORP16 citations84
US6883141B2Apr 19, 2005
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP7 citations74
US6266482B1Jul 24, 2001
Data recording apparatus and method for preventing illegal copying
SONY CORP8 citations74
US5675383AOct 7, 1997
Encoding method, encoding unit, decoding method, decoding unit, recording medium, and transmission method
SONY CORP17 citations74
US5510906AApr 23, 1996
Motion picture recording method, motion picture recording medium, and motion picture reproducing apparatus
SONY CORP12 citations74
US5363203ANov 8, 1994
Still picture transmitting system
SONY CORP15 citations73
US7269839B2Sep 11, 2007
Data distribution apparatus and method, and data distribution system
SONY CORP4 citations63
US6295407B1Sep 25, 2001
Digital video copy protection system
SONY CORP2 citations63
US5754238AMay 19, 1998
Picture signal decoding method and apparatus thereof
SONY CORP4 citations63
US6008850ADec 28, 1999
Moving picture decoding device
SONY CORP3 citations61
US7509582B2Mar 24, 2009
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP0 citations52
US7454710B2Nov 18, 2008
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP0 citations52
US7356780B2Apr 8, 2008
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP0 citations52
US7325200B2Jan 29, 2008
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP0 citations52
US7320106B2Jan 15, 2008
User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium
SONY CORP0 citations52
US7333711B2Feb 19, 2008
Data distribution apparatus and method, and data distribution system
SONY CORP0 citations42