P

Inventor

HIRAI JUN

JP71 patents
⚠️ This page may combine multiple inventors who share the name “HIRAI JUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

34 patents
US6850619B1Feb 1, 2005

Copyright protection method, information signal processing system, information signal output apparatus, information signal processing apparatus, information signal output method, information signal processing method, and information signal recording medium

SONY CORP73 citations98
US6266480B1Jul 24, 2001

Apparatus and method for effectively inhibiting unauthorized copying of picture signals which does not interfere with an authorized display thereof

SONY CORP102 citations98
US6263506B1Jul 17, 2001

Data transmission and reception device and system, data transmission method and parameter setting method for data reception device

SONY CORP91 citations98
US6115341ASep 5, 2000

Digital signal recording method and apparatus and digital signal reproduction method and apparatus

SONY CORP52 citations96
US7856143B2Dec 21, 2010

Unauthorized copy preventing device and method thereof, and program

SONY CORP20 citations93
US6839503B1Jan 4, 2005

Transfer apparatus and recording control system using a transfer control method selected based on a transfer rate of data

SONY CORP21 citations93
US6577805B1Jun 10, 2003

Picture recording and reproducing apparatus and method

SONY CORP24 citations93
US6222978B1Apr 24, 2001

Video signal copy guard apparatus and method

SONY CORP25 citations93
US7248784B1Jul 24, 2007

Signal conversion apparatus and method

SONY CORP24 citations92
US7386742B2Jun 10, 2008

Method and apparatus for controlling power to a first and second circuit based on an operational mode and connecting state of an information processing apparatus

SONY CORP9 citations84
US7062068B2Jun 13, 2006

Data processing apparatus, data processing method, and program

SONY CORP19 citations84
US5914754AJun 22, 1999

Video signal aspect ratio conversion apparatus

SONY CORP19 citations84
US4291330ASep 22, 1981

Video signal processing circuit for eliminating an interfering signal

SONY CORP26 citations82
US6933936B1Aug 23, 2005

Information processing apparatus, display control method, and recording medium

SONY CORP11 citations74
US6813436B1Nov 2, 2004

Recording apparatus, recording method and recording medium for preventing illegal duplication

SONY CORP12 citations74
US6701436B1Mar 2, 2004

Information reproducing and recording apparatus and method which permits copying for personal use while protecting a copyright

SONY CORP12 citations74
US4290082ASep 15, 1981

Noise and cross-talk elimination in recording and reproducing video signals

SONY CORP8 citations74
US4165518AAug 21, 1979

Video signal recording and/or reproducing apparatus

SONY CORP11 citations74
US4134126AJan 9, 1979

Color recorder having means for reducing luminance crosstalk in displayed image

SONY CORP18 citations74
US4131912ADec 26, 1978

Apparatus for recording and reproducing video signals on a magnetic tape movable at different speeds

SONY CORP10 citations74
US4513311AApr 23, 1985

Video signal processing unit

SONY CORP15 citations73
US4180833ADec 25, 1979

Apparatus and method for reproducing video signals

SONY CORP13 citations72
US5040082AAug 13, 1991

Recording apparatus

SONY CORP8 citations70
US9294759B2Mar 22, 2016

Display device, method and program capable of providing a high-quality stereoscopic (3D) image, independently of the eye-point location of the viewer

SONY CORP2 citations63
US7751912B2Jul 6, 2010

Replay apparatus and content evaluation method

SONY CORP6 citations63
US7720223B2May 18, 2010

System and method of content copy control

SONY CORP4 citations63
US7433488B2Oct 7, 2008

Information recording medium drive device, information processing apparatus, data replay control system, data replay control method, and computer program

SONY CORP5 citations63
US7409142B2Aug 5, 2008

Receiving apparatus, receiving method, and supplying medium

SONY CORP4 citations63
US7188247B2Mar 6, 2007

System and method of content copy control

SONY CORP1 citations63
US6873787B1Mar 29, 2005

Receiving apparatus, receiving method, and supplying medium

SONY CORP4 citations63
US6456330B1Sep 24, 2002

Remote-controlled transmitter and information transfer system using the same

SONY CORP2 citations63
US5223945AJun 29, 1993

Recording mode discrimination circuit

SONY CORP4 citations63
US5223944AJun 29, 1993

Method and apparatus for transmitting video signals during first and second portions thereof

SONY CORP6 citations63
US4175272ANov 20, 1979

Video signal processing circuitry for compensating different average levels

SONY CORP4 citations62

ROHM CO LTD

6 patents

MITSUBISHI HEAVY IND LTD

3 patents

TOSHIBA KK

2 patents

TOKYO ELECTRON LTD

1 patent

PANASONIC CORP

1 patent

TSUDAKOMA IND CO LTD

1 patent

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

1 patent

YAMASHITA NORIYUKI

1 patent

Showing the top 50 of 71 patents by PatentIndex Score.