Inventor
AMAZAWA KIYOSHI
JP20 patents
⚠️ This page may combine multiple inventors who share the name “AMAZAWA KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CLARION CO LTD
13 patentsUS4216430AAug 5, 1980
Noise eliminating circuit with automatic gain control
CLARION CO LTD23 citations80
US4701715AOct 20, 1987
Preceding value holding gate circuit for eliminating pulsive noises
CLARION CO LTD16 citations74
US4682045AJul 21, 1987
Noise eliminating signal compensation circuit
CLARION CO LTD15 citations74
US4189679AFeb 19, 1980
Noise detecting circuit having noise-immune AGC
CLARION CO LTD9 citations74
US4178552ADec 11, 1979
Noise eliminating circuit
CLARION CO LTD7 citations74
US4899389AFeb 6, 1990
Pulsating noise removal device
CLARION CO LTD9 citations73
US4634902AJan 6, 1987
Circuit arrangement capable of adjusting a threshold level of a differential transistor circuit
CLARION CO LTD9 citations73
US4694500ASep 15, 1987
Control voltage generating circuit for activating a noise reduction circuit in an FM stereo receiver
CLARION CO LTD10 citations72
US4862097AAug 29, 1989
Pulsating noise removal device
CLARION CO LTD2 citations63
US4207432AJun 10, 1980
Noise eliminating system
CLARION CO LTD4 citations63
US4130805ADec 19, 1978
Noise clearing system
CLARION CO LTD4 citations63
US4331885AMay 25, 1982
Gate circuit
CLARION CO LTD5 citations61
US5051703ASep 24, 1991
FM demodulator with tracking filter
CLARION CO LTD6 citations58
NIPPON ELECTRIC CO
4 patentsUS4305042ADec 8, 1981
Circuit for compensating for discontinuity of a noise cancelled signal
NIPPON ELECTRIC CO12 citations74
US4301541ANov 17, 1981
Noise eliminating circuit
NIPPON ELECTRIC CO8 citations74
US4297645AOct 27, 1981
Automatic gain control circuit comprising a circuit for comparing a modulated signal with an envelope detected signal
NIPPON ELECTRIC CO10 citations74
US4300104ANov 10, 1981
Automatic gain control circuit for a noise pulse canceller
NIPPON ELECTRIC CO3 citations63