Inventor
OKAMURA HIROSHIGE
JP15 patents
Patents
15 patentsUS5809004ASep 15, 1998
Information recording medium with pits edges shifted in a step-wise fashion
SONY CORP38 citations96
US5615193AMar 25, 1997
Information recording apparatus and process for recording on a recording medium with pit edges shifted in a step-wise fashion
SONY CORP44 citations96
US6914544B2Jul 5, 2005
Modulation apparatus and method and DSV control bit generation method
SONY CORP14 citations92
US5818805AOct 6, 1998
Reproducing apparatus using an information recording medium wherein multi-bit digital information is represented by a shift amount of a pit edge
SONY CORP37 citations92
US5724330AMar 3, 1998
Information recording medium wherein multi-bit digital information is represented by a shift amount of a pit edge, recording apparatus, reproducing apparatus, and recording and reproducing apparatus therefor
SONY CORP21 citations92
US5566158AOct 15, 1996
Information recording medium and a recording apparatus and a reproducing apparatus therefor
SONY CORP20 citations92
US5450381ASep 12, 1995
Magneto-optical recording utilizing signal phase adjustment
SONY CORP50 citations92
US7120105B2Oct 10, 2006
Recording medium, reproducing apparatus, and recording apparatus
SONY CORP29 citations89
US5557592ASep 17, 1996
Reproducing apparatus for reproducing information from a recording medium with pit edges shifted in a step-wise fashion
SONY CORP24 citations89
US6950042B2Sep 27, 2005
Modulating apparatus and method, and DSV control bit producing method
SONY CORP14 citations84
US6982660B2Jan 3, 2006
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP8 citations74
US6965329B2Nov 15, 2005
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP4 citations74
US5748582AMay 5, 1998
Information recording medium wherein digital symbols are represented by discrete shift amounts of a pit edge and tracking wobbling pits are shared between adjacent tracks and information recording and reproducing apparatus therefor
SONY CORP11 citations74
US7256718B2Aug 14, 2007
Modulation apparatus and method
SONY CORP4 citations63
US6958713B2Oct 25, 2005
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP2 citations63