GB1538692A - Video signal processing circuit - Google Patents

Video signal processing circuit

Info

Publication number: GB1538692A
Authority: GB; United Kingdom
Prior art keywords: signal processing; video signal; processing circuit; circuit; video
Prior art date: 1976-01-12
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.): Expired

Application number

GB98177A

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.)

Sony Corp

Original Assignee

Sony Corp

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.)

1976-01-12

Filing date

1977-01-11

Publication date

1979-01-24

1977-01-11 Application filed by Sony Corp filed Critical Sony Corp

1979-01-24 Publication of GB1538692A publication Critical patent/GB1538692A/en

Status Expired legal-status Critical Current

Classifications

- 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
- 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
- H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
- H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Television Signal Processing For Recording (AREA)
Recording Or Reproducing By Magnetic Means (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

GB98177A 1976-01-12 1977-01-11 Video signal processing circuit Expired GB1538692A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP253376A JPS5286010A (en)	1976-01-12	1976-01-12	Pre-emphasis circuit

Publications (1)

Publication Number	Publication Date
GB1538692A true GB1538692A (en)	1979-01-24

Family

ID=11532008

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB98177A Expired GB1538692A (en)	1976-01-12	1977-01-11	Video signal processing circuit

Country Status (6)

Country	Link
JP (1)	JPS5286010A (en)
AT (1)	AT351088B (en)
DE (1)	DE2700874A1 (en)
FR (1)	FR2337978A1 (en)
GB (1)	GB1538692A (en)
NL (1)	NL7700227A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2044587A (en) *	1979-03-14	1980-10-15	Rca Corp	Preemphasis and clipping apparatus for reducing distortions
EP0077010B1 (en) *	1981-10-14	1986-03-12	TELEFUNKEN Fernseh und Rundfunk GmbH	Circuit for reducing the rise-time of the flanks of a video signal, in particular for a video recorder
DE3307014A1 (en) *	1983-02-28	1984-08-30	Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover	Circuit for improving the image sharpness in a video recorder
DE3430480C2 (en) *	1984-08-18	1993-11-18	Grundig Emv	Circuit for predistorting a video signal in frequency-modulated recording

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7204290A (en) *	1972-03-30	1973-03-26

1976
- 1976-01-12 JP JP253376A patent/JPS5286010A/en active Pending
1977
- 1977-01-11 DE DE19772700874 patent/DE2700874A1/en not_active Ceased
- 1977-01-11 GB GB98177A patent/GB1538692A/en not_active Expired
- 1977-01-11 NL NL7700227A patent/NL7700227A/en not_active Application Discontinuation
- 1977-01-12 AT AT13977A patent/AT351088B/en not_active IP Right Cessation
- 1977-01-12 FR FR7700768A patent/FR2337978A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
DE2700874A1 (en)	1977-07-21
AT351088B (en)	1979-07-10
JPS5286010A (en)	1977-07-16
NL7700227A (en)	1977-07-14
FR2337978A1 (en)	1977-08-05
ATA13977A (en)	1978-12-15

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Legal Events

Date	Code	Title	Description
1979-04-25	PS	Patent sealed
1994-09-07	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19940111