Inventor
MATSUURA SHIGEO
17 patents
Patents
17 patentsUS4417279ANov 22, 1983
FM Television signal receiving circuit
HITACHI LTD30 citations92
US4247953AJan 27, 1981
Tunable high-frequency input circuit
HITACHI LTD38 citations92
US4491976AJan 1, 1985
Wide-band tuner having a temperature-compensated microstrip resonator arrangement
HITACHI LTD43 citations91
US4233591ANov 11, 1980
Digital-to-analog converter of the pulse width modulation type
HITACHI LTD22 citations82
US4160953AJul 10, 1979
Self-oscillation mixer circuits
HITACHI LTD22 citations81
US4636863AJan 13, 1987
Noise reduction circuit
HITACHI LTD14 citations73
US4392249AJul 5, 1983
Electronic channel selection apparatus with surface acoustic wave device
HITACHI LTD9 citations71
US5032916AJul 16, 1991
Method of detecting signal waveform disturbance in received television picture signal
HITACHI LTD14 citations70
US4555702ANov 26, 1985
Remote control signal reproducing circuit
HITACHI LTD12 citations68
US4589016AMay 13, 1986
FM television signal receiving circuit
HITACHI LTD2 citations62
US4363134ADec 7, 1982
Channel selection apparatus
HITACHI LTD6 citations62
US4337486AJun 29, 1982
Synchronizing signal discriminator for use in channel selection apparatus of television receiver
HITACHI LTD5 citations62
US4270219AMay 26, 1981
Channel selection apparatus tunable to destined frequency in short time
HITACHI LTD6 citations62
US4270215AMay 26, 1981
Channel indicator
HITACHI LTD2 citations62
US4232397ANov 4, 1980
Automatic channel selection apparatus
HITACHI LTD3 citations62
US4211988AJul 8, 1980
Search tuning system for television receiver
HITACHI LTD2 citations62
US4144512AMar 13, 1979
AFC voltage superimposing circuit for electronic tuner
HITACHI LTD2 citations61