GB2248995B - Improvements relating to video signal processing - Google Patents

Improvements relating to video signal processing

Info

Publication number: GB2248995B
Authority: GB; United Kingdom
Prior art keywords: signal processing; video signal; improvements relating; relating; video
Prior art date: 1989-08-15
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 - Fee Related

Application number

GB9124785A

Other versions

GB9124785D0 (en

GB2248995A (en

Inventor

John Lewis Edwin Baldwin

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.)

Rank Cintel Ltd

Original Assignee

Rank Cintel 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.)

1989-08-15

Filing date

1991-11-21

Publication date

1993-08-25

1989-08-15 Priority claimed from GB898918560A external-priority patent/GB8918560D0/en

1991-11-21 Application filed by Rank Cintel Ltd filed Critical Rank Cintel Ltd

1991-11-21 Priority to GB9124785A priority Critical patent/GB2248995B/en

1992-01-15 Publication of GB9124785D0 publication Critical patent/GB9124785D0/en

1992-04-22 Publication of GB2248995A publication Critical patent/GB2248995A/en

1993-08-25 Application granted granted Critical

1993-08-25 Publication of GB2248995B publication Critical patent/GB2248995B/en

2011-11-21 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/202—Gamma control
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/11—Scanning of colour motion picture films, e.g. for telecine

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Picture Signal Circuits (AREA)

GB9124785A 1989-08-15 1991-11-21 Improvements relating to video signal processing Expired - Fee Related GB2248995B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB9124785A GB2248995B (en)	1989-08-15	1991-11-21	Improvements relating to video signal processing

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GB898918560A GB8918560D0 (en)	1989-08-15	1989-08-15	Improvements relating to video signal processing
PCT/GB1990/001278 WO1991003122A1 (en)	1989-08-15	1990-08-14	Improvements relating to video signal processing
GB9124785A GB2248995B (en)	1989-08-15	1991-11-21	Improvements relating to video signal processing

Publications (3)

Publication Number	Publication Date
GB9124785D0 GB9124785D0 (en)	1992-01-15
GB2248995A GB2248995A (en)	1992-04-22
GB2248995B true GB2248995B (en)	1993-08-25

Family

ID=26295764

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9124785A Expired - Fee Related GB2248995B (en)	1989-08-15	1991-11-21	Improvements relating to video signal processing

Country Status (1)

Country	Link
GB (1)	GB2248995B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5680172A (en) *	1992-01-21	1997-10-21	Video Post & Transfer, Inc.	Consecutive frame scanning of cinematographic film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0148618A2 (en) *	1984-01-09	1985-07-17	Tektronix, Inc.	Method and system for improved reconstruction of video images in line sequential chroma format
JPS61186094A (en) *	1985-02-14	1986-08-19	Hitachi Ltd	Signal processing circuit for color video camera
GB2173971A (en) *	1985-04-11	1986-10-22	British Broadcasting Corp	PAL coders and decoders
JPH01126090A (en) *	1987-11-11	1989-05-18	Hitachi Ltd	Noise reducer

1991
- 1991-11-21 GB GB9124785A patent/GB2248995B/en not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0148618A2 (en) *	1984-01-09	1985-07-17	Tektronix, Inc.	Method and system for improved reconstruction of video images in line sequential chroma format
JPS61186094A (en) *	1985-02-14	1986-08-19	Hitachi Ltd	Signal processing circuit for color video camera
GB2173971A (en) *	1985-04-11	1986-10-22	British Broadcasting Corp	PAL coders and decoders
JPH01126090A (en) *	1987-11-11	1989-05-18	Hitachi Ltd	Noise reducer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent abstracts of Japan,vol.11,no 11(E-470)(2458),13 Jan 1987 & JP,A, 61186094 (Hitachi) 19 Aug 86 *
Patent abstracts of Japan,vol.13, no 374(E-808)(3722),18 Aug 1989 & JP, A, 1126090 (Hitachi)18 May 89 *

Also Published As

Publication number	Publication date
GB9124785D0 (en)	1992-01-15
GB2248995A (en)	1992-04-22

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Legal Events

Date	Code	Title	Description
1997-01-15	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2004-04-07	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20030814