GB2000666A – Recording and reproducing system
– Google Patents
GB2000666A – Recording and reproducing system
– Google Patents
Recording and reproducing system
Info
Publication number
GB2000666A
GB2000666A
GB7827951A
GB7827951A
GB2000666A
GB 2000666 A
GB2000666 A
GB 2000666A
GB 7827951 A
GB7827951 A
GB 7827951A
GB 7827951 A
GB7827951 A
GB 7827951A
GB 2000666 A
GB2000666 A
GB 2000666A
Authority
GB
United Kingdom
Prior art keywords
recording
reproducing system
reproducing
Prior art date
1977-06-29
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7827951A
Other versions
GB2000666B
(en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1977-06-29
Filing date
1978-06-27
Publication date
1979-01-10
1978-06-27
Application filed by Matsushita Electric Industrial Co Ltd
filed
Critical
Matsushita Electric Industrial Co Ltd
1979-01-10
Publication of GB2000666A
publication
Critical
patent/GB2000666A/en
1982-09-29
Application granted
granted
Critical
1982-09-29
Publication of GB2000666B
publication
Critical
patent/GB2000666B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03G—CONTROL OF AMPLIFICATION
H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N5/00—Details of television systems
H04N5/76—Television signal recording
H04N5/91—Television signal processing therefor
H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation
GB7827951A
1977-06-29
1978-06-27
Recording and reproducing system
Expired
GB2000666B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP7815477A
JPS5412714A
(en)
1977-06-29
1977-06-29
Recorder-reproducer
Publications (2)
Publication Number
Publication Date
GB2000666A
true
GB2000666A
(en)
1979-01-10
GB2000666B
GB2000666B
(en)
1982-09-29
Family
ID=13653988
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7827951A
Expired
GB2000666B
(en)
1977-06-29
1978-06-27
Recording and reproducing system
Country Status (5)
Country
Link
US
(1)
US4303952A
(en)
JP
(1)
JPS5412714A
(en)
DE
(1)
DE2828586C2
(en)
GB
(1)
GB2000666B
(en)
NL
(1)
NL188613C
(en)
Cited By (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0015499A1
(en)
*
1979-02-28
1980-09-17
Matsushita Electric Industrial Co., Ltd.
Video signal recording and reproducing apparatus
US4326223A
(en)
*
1978-05-02
1982-04-20
Sony Corporation
Video signal recording and/or reproducing apparatus with gain control
FR2503509A1
(en)
*
1981-04-06
1982-10-08
Sony Corp
VIDEO SIGNAL PROCESSING CIRCUIT
EP0077010A1
(en)
*
1981-10-14
1983-04-20
TELEFUNKEN Fernseh und Rundfunk GmbH
Circuit for reducing the rise-time of the flanks of a video signal, in particular for a video recorder
FR2533787A1
(en)
*
1982-09-25
1984-03-30
Victor Company Of Japan
VIDEO SIGNAL PROCESSING SYSTEM
FR2540697A1
(en)
*
1983-02-07
1984-08-10
Victor Company Of Japan
NOISE REDUCTION DEVICE FOR VIDEO SIGNAL
GB2150784A
(en)
*
1983-10-25
1985-07-03
Sony Corp
Non-linear digital emphasis circuits
Families Citing this family (19)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2950764A1
(en)
*
1979-12-17
1981-07-23
Basf Ag, 6700 Ludwigshafen
ARRANGEMENT FOR EQUALIZING A BROADBAND SIGNAL, IN PARTICULAR A VIDEO SIGNAL WITH OR WITHOUT COLOR INFORMATION IN A SIGNAL RECORDING / PLAYBACK SYSTEM
JPS56119908A
(en)
*
1980-02-25
1981-09-19
Hitachi Ltd
Regenerative amplifying circuit
JPS5717240A
(en)
*
1980-07-04
1982-01-28
Hitachi Ltd
Dynamic deemphasis circuit
JPS5793848A
(en)
*
1980-12-02
1982-06-11
Fuji Xerox Co Ltd
Correcting apparatus for paper skew feed of copier
JPS57138009A
(en)
*
1981-02-20
1982-08-26
Hitachi Ltd
Magnetic recorder and reproducer
JPS5880990A
(en)
*
1981-11-09
1983-05-16
Matsushita Electric Ind Co Ltd
Recording and reproducing device for color television signal
US4612585A
(en)
*
1982-09-10
1986-09-16
Hitachi, Ltd.
Chrominance signal recording and reproducing apparatus
US4525011A
(en)
*
1982-09-20
1985-06-25
American Standard Inc.
Vigilance safety control system
JPS59104885A
(en)
*
1982-12-08
1984-06-16
Matsushita Electric Ind Co Ltd
Signal processing circuit of recording and reproducing device
JPS6030285A
(en)
*
1983-07-29
1985-02-15
Victor Co Of Japan Ltd
Recording and reproducing device of video signal
JPS6030296A
(en)
*
1983-07-29
1985-02-15
Victor Co Of Japan Ltd
Recording and reproducing device of video signal
JPS6030295A
(en)
*
1983-07-29
1985-02-15
Victor Co Of Japan Ltd
Recording and reproducing device for chrominance carrier signal
DE3516913C1
(en)
*
1985-05-10
1986-10-02
Philips Patentverwaltung Gmbh, 2000 Hamburg
Automatic FM sideband level control for video recorders
JPS61142894A
(en)
*
1985-10-18
1986-06-30
Hitachi Ltd
Chrominance signal recording and reproducing circuit
JPH0656967B2
(en)
*
1986-01-27
1994-07-27
日本放送協会
Emphasis method
JPH0810533B2
(en)
*
1988-10-20
1996-01-31
日本ビクター株式会社
Magnetic playback device
US5257109A
(en)
*
1990-07-02
1993-10-26
Akai Electric Co., Ltd.
Magnetic recording and reproducing apparatus
JPH04302541A
(en)
*
1991-03-29
1992-10-26
Sony Corp
Emphasis device
WO1998010590A1
(en)
*
1996-09-02
1998-03-12
Sony Corporation
Device and method for transmitting video signal
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1248704B
(en)
*
1967-08-31
US3346703A
(en)
*
1964-03-13
1967-10-10
Minnesota Mining & Mfg
Two track transducing system with means to extend dynamic range
US3288930A
(en)
*
1964-11-12
1966-11-29
Winston Res Corp
Wide-band signal-translating channel
CH505505A
(en)
*
1968-12-26
1971-03-31
Kudelski Stefan
Use of an electronic circuit constituting a non-linear and variable impedance
US3659042A
(en)
*
1969-10-06
1972-04-25
Westinghouse Electric Corp
Wide deviation magnetic recording techniques
US3840890A
(en)
*
1972-05-30
1974-10-08
Capintec Inc
Apparatus for recording and reproducing analog data
US3944853A
(en)
*
1974-08-12
1976-03-16
Basf Aktiengesellschaft
Video recorder pre-emphasis, de-emphasis circuits
JPS52107816A
(en)
*
1976-03-05
1977-09-09
Nakamichi Kenkyusho
Circuit for reproducing tape recorder
JPS606034B2
(en)
*
1976-07-06
1985-02-15
ソニー株式会社
magnetic recording device
JPS53106109A
(en)
*
1977-02-28
1978-09-14
Sony Corp
Vedio signal transmitting circuit
1977
1977-06-29
JP
JP7815477A
patent/JPS5412714A/en
active
Granted
1978
1978-06-26
US
US05/919,298
patent/US4303952A/en
not_active
Expired – Lifetime
1978-06-27
GB
GB7827951A
patent/GB2000666B/en
not_active
Expired
1978-06-29
NL
NLAANVRAGE7807015,A
patent/NL188613C/en
not_active
IP Right Cessation
1978-06-29
DE
DE2828586A
patent/DE2828586C2/en
not_active
Expired
Cited By (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4326223A
(en)
*
1978-05-02
1982-04-20
Sony Corporation
Video signal recording and/or reproducing apparatus with gain control
EP0015499A1
(en)
*
1979-02-28
1980-09-17
Matsushita Electric Industrial Co., Ltd.
Video signal recording and reproducing apparatus
FR2503509A1
(en)
*
1981-04-06
1982-10-08
Sony Corp
VIDEO SIGNAL PROCESSING CIRCUIT
EP0077010A1
(en)
*
1981-10-14
1983-04-20
TELEFUNKEN Fernseh und Rundfunk GmbH
Circuit for reducing the rise-time of the flanks of a video signal, in particular for a video recorder
FR2533787A1
(en)
*
1982-09-25
1984-03-30
Victor Company Of Japan
VIDEO SIGNAL PROCESSING SYSTEM
FR2540697A1
(en)
*
1983-02-07
1984-08-10
Victor Company Of Japan
NOISE REDUCTION DEVICE FOR VIDEO SIGNAL
GB2150784A
(en)
*
1983-10-25
1985-07-03
Sony Corp
Non-linear digital emphasis circuits
Also Published As
Publication number
Publication date
DE2828586A1
(en)
1979-01-18
JPS5412714A
(en)
1979-01-30
NL7807015A
(en)
1979-01-03
DE2828586C2
(en)
1982-10-14
GB2000666B
(en)
1982-09-29
NL188613C
(en)
1992-08-03
US4303952A
(en)
1981-12-01
JPS6151346B2
(en)
1986-11-08
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Legal Events
Date
Code
Title
Description
1998-07-22
PE20
Patent expired after termination of 20 years
Effective date:
19980626
