Inventor
ACHIHA MASAHIKO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “ACHIHA MASAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS4296436AOct 20, 1981
Noise reducing system
HITACHI LTD75 citations95
US4811092AMar 7, 1989
Movement detector for composite color television signals
HITACHI LTD25 citations92
US4794454ADec 27, 1988
Movement detection circuit of a video signal used in a television receiver
HITACHI LTD28 citations92
US4636857AJan 13, 1987
Scanning line interpolation circuit for television signal
HITACHI LTD31 citations92
US4626891ADec 2, 1986
Motion detecting circuit utilizing inter-frame difference signals of successive fields
HITACHI LTD50 citations92
US4530004AJul 16, 1985
Color television signal processing circuit
HITACHI LTD44 citations92
US4739390AApr 19, 1988
Television signal processing circuit
HITACHI LTD32 citations91
US4821112AApr 11, 1989
Detection circuit for detecting standard television signals and nonstandard television signals
HITACHI LTD20 citations73
US4775888AOct 4, 1988
Motion detector for chrominance signal in TV receiver
HITACHI LTD14 citations73
US4736252AApr 5, 1988
Motion detector for chrominance signal in TV receiver
HITACHI LTD14 citations73
US4688084AAug 18, 1987
Movement detection circuit for television signals
HITACHI LTD8 citations73
US4348689ASep 7, 1982
Phase adjusting system for carrier chrominance signal
HITACHI LTD9 citations73
US4970601ANov 13, 1990
Video signal processing apparatus for video tape recorder
HITACHI LTD5 citations62