P

Inventor

ETO YOSHIZUMI

33 patents
⚠️ This page may combine multiple inventors who share the name “ETO YOSHIZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

24 patents
US5282045AJan 25, 1994

Depth-of-field control apparatus and image pickup apparatus having the same therein

HITACHI LTD183 citations99
US5159452AOct 27, 1992

Video signal transmitting method and equipment of the same

HITACHI LTD219 citations99
US5047852ASep 10, 1991

Adaptive transform encoder for digital image signal in recording/reproducing apparatus

HITACHI LTD77 citations96
US4970707ANov 13, 1990

Optical tape apparatus with a tracking control mechanism and/or a focusing control mechanism

HITACHI LTD64 citations96
US4825291AApr 25, 1989

Solid-state televison camera with storage time controller

HITACHI LTD30 citations93
US4963992AOct 16, 1990

Apparatus for recording/reproducing digital video signals in both a standard mode and a long playing mode

HITACHI LTD30 citations92
US4653052AMar 24, 1987

Method for decoding double-encoding codes and apparatus using the same

HITACHI LTD52 citations92
US4628297ADec 9, 1986

Code modulation system

HITACHI LTD30 citations92
US4737863AApr 12, 1988

Method for distributing and recording video signals and an apparatus using the same

HITACHI LTD31 citations89
US4802192AJan 31, 1989

Circuit for detecting synchronizing code

HITACHI LTD19 citations81
US4775897AOct 4, 1988

Dubbing method and apparatus for digital recording reproducing apparatus including direct digital outputs

HITACHI LTD21 citations81
US4700240AOct 13, 1987

Digital data playback system

HITACHI LTD21 citations81
US5247401ASep 21, 1993

Replay equalization circuit in digital image recorder

HITACHI LTD20 citations79
US5113247AMay 12, 1992

Solid state image pickup apparatus for correcting discrepancy of registration

HITACHI LTD14 citations74
US4652942AMar 24, 1987

Method and system for converting binary data using bit-divided encoding

HITACHI LTD7 citations74
US4698811AOct 6, 1987

Method and apparatus for generating error correction codes for digitized picture signal recording/reproducing

HITACHI LTD9 citations73
US3999011ADec 21, 1976

Method and system for controlling electron beam quantity in camera tube

HITACHI LTD18 citations73
US3975657AAug 17, 1976

Method of and apparatus for controlling amount of electron beam in image pickup tube

HITACHI LTD16 citations73
US5552940ASep 3, 1996

Method and apparatus for digital signal recording and/or reproduction

HITACHI LTD11 citations71
US4983965AJan 8, 1991

Demodulation apparatus

HITACHI LTD5 citations63
US3973079AAug 3, 1976

Two-level picture signal transmission system

HITACHI LTD4 citations62
US4088391AMay 9, 1978

Irregular ferroelectric element devised for single domain-wall motion

HITACHI LTD4 citations61
US4046455ASep 6, 1977

Irregular ferroelectric element devised for motion of plural domain-walls

HITACHI LTD5 citations61
US3936146AFeb 3, 1976

Irregular ferroelectric element for controllable single domain

HITACHI LTD5 citations61

HITACHI ELECTRONICS

7 patents

NIPPON TELEGRAPH & TELEPHONE

1 patent

JAPAN BROADCASTING CORP

1 patent