Inventor
MACHIDA YUKIHIKO
JP13 patents
Patents
13 patentsUS4821032AApr 11, 1989
Communication system for video information apparatus
SONY CORP109 citations95
US4804894AFeb 14, 1989
Motor rotation servo control apparatus
SONY CORP27 citations92
US4551771ANov 5, 1985
Method and apparatus for recording digital information in alternate recording tracks
SONY CORP43 citations92
US4477844AOct 16, 1984
Apparatus for recording a digital audio signal in a track with a video signal
SONY CORP32 citations92
US3997823ADec 14, 1976
Brushless DC motor driving circuit
SONY CORP20 citations81
US4713702ADec 15, 1987
Data communication apparatus
SONY CORP13 citations73
US4326223AApr 20, 1982
Video signal recording and/or reproducing apparatus with gain control
SONY CORP7 citations73
US4021742AMay 3, 1977
Phase compressor for phase modulated signal
SONY CORP7 citations73
US3949314AApr 6, 1976
Phase demodulator
SONY CORP9 citations73
US4823206AApr 18, 1989
Video signal recording and/or reproducing apparatus
SONY CORP7 citations72
US3992719ANov 16, 1976
Video signal recording/reproducing apparatus wherein the phase of the recorded signal is synchronized with the scanning head
SONY CORP3 citations62
US4559501ADec 17, 1985
Signal translating circuit
SONY CORP2 citations59
USRE34650EJun 28, 1994
Communication system for video information apparatus
SONY CORP1 citations51