Inventor
OWA HIDEO
JP25 patents
Patents
25 patentsUS6005839ADec 21, 1999
Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus
SONY CORP124 citations98
US6134201AOct 17, 2000
Data recording apparatus, method therefor, data reproducing apparatus, method therefor and record medium
SONY CORP45 citations96
US5901127AMay 4, 1999
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP51 citations96
US5802174ASep 1, 1998
Data recording medium
SONY CORP70 citations96
US5587984ADec 24, 1996
Hologram printed on optical recording medium for copy protection
SONY CORP92 citations96
US6487293B2Nov 26, 2002
Method and apparatus for reproducing ciphered data
SONY CORP17 citations93
US6463153B1Oct 8, 2002
Method for transmitting data apparatus for recording data medium for recording data and apparatus for reproducing data
SONY CORP40 citations93
US6445795B1Sep 3, 2002
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP20 citations93
US6215745B1Apr 10, 2001
Decoding key recorded at a recording site in order to decode information transmitted to that site is encoded with information specific to the recording site
SONY CORP23 citations93
US6687826B1Feb 3, 2004
Optical disc and method of recording data into same
SONY CORP29 citations92
US6564009B2May 13, 2003
Apparatus for recording and/or reproducing data onto and/or from an optical disk and method thereof
SONY CORP52 citations92
US6320841B1Nov 20, 2001
Slider for optical head
SONY CORP24 citations92
US5323374AJun 21, 1994
Method of magneto-optical recording
SONY CORP34 citations92
US7380132B2May 27, 2008
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP10 citations84
US5379119AJan 3, 1995
Video disk recording apparatus wherein the frequency of the carrier is lowered and the frequency range of the information signal is narrowed when a recording laser beam is positioned at an extended recording area of the disk
SONY CORP12 citations74
US5083212AJan 21, 1992
Apparatus and method for recording a color television signal on an optical disc
SONY CORP15 citations74
US7401228B2Jul 15, 2008
Method for transmitting data, apparatus for recording data, medium for recording data, and apparatus for reproducing data
SONY CORP2 citations63
US7398251B2Jul 8, 2008
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP1 citations63
US7246095B2Jul 17, 2007
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP1 citations63
US6944297B2Sep 13, 2005
Method and apparatus for reproducing ciphered data
SONY CORP2 citations63
US6882987B2Apr 19, 2005
Methods and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP1 citations63
US7366700B2Apr 29, 2008
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP0 citations52
US7321878B2Jan 22, 2008
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP0 citations52
US7249101B2Jul 24, 2007
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP0 citations52
US7246096B2Jul 17, 2007
Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
SONY CORP0 citations52