Inventor
AKIYAMA TORU
JP37 patents
⚠️ This page may combine multiple inventors who share the name “AKIYAMA TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
19 patentsUS5283659AFeb 1, 1994
Apparatus and method of high vision signal recording using expansion techniques and digital drop-out compensation
PIONEER ELECTRONIC CORP41 citations92
US4882625ANov 21, 1989
Improved definition television set with external luminance and chrominance signal inputs
PIONEER ELECTRONIC CORP10 citations74
US4841379AJun 20, 1989
Time-base error correction apparatus for video tape or disk player
PIONEER ELECTRONIC CORP8 citations74
US4835623AMay 30, 1989
System for playing video information recording disks, capable of special playback mode operation with a CLV disk
PIONEER ELECTRONIC CORP9 citations74
US4743979AMay 10, 1988
System for playing video information recording disks, capable of special playback mode operation with a CLV disk
PIONEER ELECTRONIC CORP10 citations74
US4734757AMar 29, 1988
Color burst phase detection system for use in a video disk player system
PIONEER ELECTRONIC CORP9 citations74
US5420847AMay 30, 1995
Reproducing system for an optical disc
PIONEER ELECTRONIC CORP13 citations73
US4853914AAug 1, 1989
Time base correction system with coarse and fine correction
PIONEER ELECTRONIC CORP16 citations73
US4853781AAug 1, 1989
Video format signal processing system
PIONEER ELECTRONIC CORP10 citations73
US4837637AJun 6, 1989
Scanning method for disk player
PIONEER ELECTRONIC CORP12 citations71
US5321519AJun 14, 1994
Crosstalk detector for optically read signals
PIONEER ELECTRONIC CORP5 citations63
US5204744AApr 20, 1993
System for reproducing a stationary picture
PIONEER ELECTRONIC CORP4 citations63
US4928166AMay 22, 1990
Apparatus for suppressing noises in a video signal
PIONEER ELECTRONIC CORP3 citations63
US4866394ASep 12, 1989
Phase synchronizing circuit for a time axis shift correcting circuit
PIONEER ELECTRONIC CORP2 citations63
US4688103AAug 18, 1987
Apparatus for the color synchronization of reproduced video signals
PIONEER ELECTRONIC CORP2 citations63
US4584614AApr 22, 1986
Chroma signal phase correction circuitry to be used in a color video information playback system
PIONEER ELECTRONIC CORP2 citations63
US5481369AJan 2, 1996
Crosstalk detector for optically read signals
PIONEER ELECTRONIC CORP0 citations52
US5251042AOct 5, 1993
Component video signal transmitting apparatus
PIONEER ELECTRONIC CORP0 citations52
US5166805ANov 24, 1992
Disk player with a blanking during fast scanning
PIONEER ELECTRONIC CORP0 citations52
SANYO ELECTRIC CO
6 patentsUS6493305B1Dec 10, 2002
Pulse width control circuit
SANYO ELECTRIC CO23 citations93
US6567490B1May 20, 2003
Pulse signal delay circuit
SANYO ELECTRIC CO14 citations84
US4236251ANov 25, 1980
Frequency synthesizer receiver having memory for storing frequency data
SANYO ELECTRIC CO29 citations81
US4667338AMay 19, 1987
Noise elimination circuit for eliminating noise signals from binary data
SANYO ELECTRIC CO23 citations80
US4201945AMay 6, 1980
Phase comparing apparatus
SANYO ELECTRIC CO8 citations72
US4179628ADec 18, 1979
Flip-flop having reset preferential function
SANYO ELECTRIC CO7 citations72
UNIVERSAL PIONEER CORP
4 patentsUS4344165AAug 10, 1982
Method and system for a disc player tracking servo
UNIVERSAL PIONEER CORP31 citations92
US4494154AJan 15, 1985
Pickup control device and method for fast or slow reproduction in a disk reading system
UNIVERSAL PIONEER CORP18 citations74
US4512002AApr 16, 1985
Tracking servo system of recording disc information recording and reproducing apparatus
UNIVERSAL PIONEER CORP8 citations73
US4477838AOct 16, 1984
Tangential error signal generator in PAL type video disc player
UNIVERSAL PIONEER CORP2 citations63