Inventor

YAMAMITSU CHOJURO

JP21 patents

Patents

21 patents

US4691329ASep 1, 1987

Block encoder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD146 citations97

US5126852AJun 30, 1992

Compressed video signal recording/variable-speed reproduction apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD107 citations96

US4760378AJul 26, 1988

Method and apparatus for converting a run length limited code

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations96

US4303950ADec 1, 1981

Helical scan video tape recorder for recording video and audio signals on contiguous tracks

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD71 citations94

US6147823ANov 14, 2000

Method for recording digital data including a data conversion or format conversion, and apparatus using the method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92

US4633330ADec 30, 1986

Digital recording and reproducing apparatus for television signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92

US4597021AJun 24, 1986

Video recording and reproducing apparatus with noise reduction

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations81

US4356506AOct 26, 1982

Automatic chrominance control circuit for a color video tape recorder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74

US6508596B1Jan 21, 2003

Apparatus using a method for recording digital data including a data conversion or format conversion, and apparatus using the method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations73

US6038094AMar 14, 2000

Digital data recording device having a rotary cylinder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73

US5367334ANov 22, 1994

Video signal encoding and decoding apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations73

US5278706AJan 11, 1994

Digital video signal recording/reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations73

US4400742AAug 23, 1983

Magnetic recording and reproducing apparatus for color video signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73

US4303952ADec 1, 1981

Recording and reproducing system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73

US3969755AJul 13, 1976

Equipment for recording and reproducing color television signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73

US4425585AJan 10, 1984

Video tape recorder immune to third-order distortion noise

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations72

US4399472AAug 16, 1983

Phase difference compensation between separately recorded luminance and chrominance signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations72

US4209800AJun 24, 1980

Magnetic color video recording and reproducing system with color killer circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations72

US4137547AJan 30, 1979

Drop-out responsive magnetic recording and reproducing system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71

US4719519AJan 12, 1988

Component video signal magnetic recording and reproducing apparatus including means for expanding and compressing luminance and color difference signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62

US4400741AAug 23, 1983

Video tape recorder with inter-channel switching circuit for special modes of reproduction

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61