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the level control being frequency-dependent
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H04N9/7933
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H
ELECTRICITY
H04
Electric communication
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PICTORIAL COMMUNICATION
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Details of colour television systems
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H04N9/7933
the level control being frequency-dependent
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Patents Grants
last 30 patents
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Patent Grant
Projector having blue light alleviating part
Patent number
9,046,752
Issue date
Jun 2, 2015
Mitsubishi Electric Corporation
Katsumi Asakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projector having blue light alleviating part
Patent number
9,039,199
Issue date
May 26, 2015
Mitsubishi Electric Corporation
Katsumi Asakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic recording and reproducing device with selective line noise...
Patent number
5,446,539
Issue date
Aug 29, 1995
Akai Electric Co., Ltd.
Tokuichi Minakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for reducing noise in high-frequency band
Patent number
5,428,455
Issue date
Jun 27, 1995
Sanyo Electric Co., Ltd.
Nobukazu Hosoya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic recording/reproducing apparatus including a switch for sel...
Patent number
5,416,641
Issue date
May 16, 1995
Akai Electric Co., Ltd.
Tokuichi Minakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic recording apparatus having improved detail emphasis circuit
Patent number
5,400,149
Issue date
Mar 21, 1995
Akai Electric Co., Ltd.
Tokuichi Minakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video signal reproducing apparatus having diverse still picture rep...
Patent number
5,355,256
Issue date
Oct 11, 1994
Canon Kabushiki Kaisha
Tsutomu Fukatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic recording and reproducing apparatus
Patent number
5,257,109
Issue date
Oct 26, 1993
Akai Electric Co., Ltd.
Tokuichi Minakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Noise canceller for use in a magnetic reproducing apparatus
Patent number
5,249,064
Issue date
Sep 28, 1993
Akai Electric Co., Ltd.
Tokuichi Minakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of recording fine color video signal on optical recording me...
Patent number
5,227,891
Issue date
Jul 13, 1993
Sanyo Electric Co., Ltd.
Yasuyuki Ikeguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video signal processing apparatus for restoring an interlaced video...
Patent number
5,204,754
Issue date
Apr 20, 1993
Canon Kabushiki Kaisha
Tsutomu Fukatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dual deck videocassette recorder system
Patent number
5,194,963
Issue date
Mar 16, 1993
Go-Video, Inc.
R. Terren Dunlap
G11 - INFORMATION STORAGE
Information
Patent Grant
Luminance signal recording circuit and method for maintaining compa...
Patent number
5,187,590
Issue date
Feb 16, 1993
Samsung Electronics Co., Ltd.
Yong-je Kim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dual deck videocassette recorder system
Patent number
5,124,807
Issue date
Jun 23, 1992
Go-Video, Inc.
R. Terren Dunlap
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording/reproducing apparatus
Patent number
5,121,266
Issue date
Jun 9, 1992
Hitachi, Ltd.
Yoichi Ito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic record erase circuit
Patent number
4,864,435
Issue date
Sep 5, 1989
Fuji Photo Film Co., Ltd.
Chikuni Kawakami
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for recording a frequency modulated video signal with sel...
Patent number
4,792,862
Issue date
Dec 20, 1988
Sony Corporation
Yoichi Tsusue
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for recording and reproducing video signal and digital si...
Patent number
4,758,903
Issue date
Jul 19, 1988
Hitachi, Ltd.
Takaharu Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video signal reproducing apparatus for reproducing recorded video s...
Patent number
4,723,175
Issue date
Feb 2, 1988
Victor Company of Japan, Ltd.
Yutaka Ichinoi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Recording and reproducing apparatus for a video tape recorder
Patent number
4,613,912
Issue date
Sep 23, 1986
Hitachi, Ltd.
Akira Shibata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Color video signal recording and/or reproducing system using overla...
Patent number
4,608,611
Issue date
Aug 26, 1986
Victor Company of Japan
Yoshihiko Ota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic recording/reproducing apparatus for video and sound
Patent number
4,556,917
Issue date
Dec 3, 1985
Hitachi, Ltd.
Akira Shibata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Chroma signal recording and reproducing circuit
Patent number
4,524,380
Issue date
Jun 18, 1985
Hitachi, Ltd.
Akira Shibata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for frequency characteristic compensation of t...
Patent number
4,445,142
Issue date
Apr 24, 1984
Robert Bosch GmbH
Winfried Horstmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Color video signal dubbing system for collating the outputs of sign...
Patent number
4,396,953
Issue date
Aug 2, 1983
Victor Company of Japan, Ltd.
Mitsuo Fujita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Gain correction system for videodisc player apparatus
Patent number
4,370,679
Issue date
Jan 25, 1983
Discovision Associates
Ludwig Ceshkovsky
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital chrominance separating and processing system and method
Patent number
4,143,396
Issue date
Mar 6, 1979
Ampex Corporation
Robert P. MacKenzie
G11 - INFORMATION STORAGE
Information
Patent Grant
Frequency response equalizer
Patent number
4,110,798
Issue date
Aug 29, 1978
Ampex Corporation
Jerry W. Miller
G11 - INFORMATION STORAGE
Information
Patent Grant
Processing arrangement and correcting device for color television s...
Patent number
4,030,120
Issue date
Jun 14, 1977
Thomson-CSF
Luc Pham van Cang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3906152
Patent number
3,906,152
Issue date
Sep 16, 1975
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
VIDEO REPRODUCTION APPARATUS, VIDEO REPRODUCTION METHOD AND VIDEO D...
Publication number
20160065927
Publication date
Mar 3, 2016
Kabushiki Kaisha Toshiba
Miki YAMADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTOR
Publication number
20130286052
Publication date
Oct 31, 2013
Katsumi ASAKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTOR
Publication number
20130265498
Publication date
Oct 10, 2013
Katsumi ASAKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE