GB2020508A – Noise reduction system for colour television signal
– Google Patents
GB2020508A – Noise reduction system for colour television signal
– Google Patents
Noise reduction system for colour television signal
Info
Publication number
GB2020508A
GB2020508A
GB7907699A
GB7907699A
GB2020508A
GB 2020508 A
GB2020508 A
GB 2020508A
GB 7907699 A
GB7907699 A
GB 7907699A
GB 7907699 A
GB7907699 A
GB 7907699A
GB 2020508 A
GB2020508 A
GB 2020508A
Authority
GB
United Kingdom
Prior art keywords
noise reduction
television signal
reduction system
colour television
colour
Prior art date
1978-03-08
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
GB7907699A
Other versions
GB2020508B
(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.)
NEC Corp
Tokyo Broadcasting System Inc TBS
Original Assignee
Tokyo Broadcasting System Inc TBS
Nippon Electric 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.)
1978-03-08
Filing date
1979-03-05
Publication date
1979-11-14
1978-03-08
Priority claimed from JP2685878A
external-priority
patent/JPS54118724A/en
1978-03-08
Priority claimed from JP2685778A
external-priority
patent/JPS54118727A/en
1979-03-05
Application filed by Tokyo Broadcasting System Inc TBS, Nippon Electric Co Ltd
filed
Critical
Tokyo Broadcasting System Inc TBS
1979-11-14
Publication of GB2020508A
publication
Critical
patent/GB2020508A/en
1983-03-09
Application granted
granted
Critical
1983-03-09
Publication of GB2020508B
publication
Critical
patent/GB2020508B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N9/00—Details of colour television systems
H04N9/64—Circuits for processing colour signals
H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
GB7907699A
1978-03-08
1979-03-05
Noise reduction system for colour television signal
Expired
GB2020508B
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
JP2685878A
JPS54118724A
(en)
1978-03-08
1978-03-08
S/n improvement device for television video signal
JP2685778A
JPS54118727A
(en)
1978-03-08
1978-03-08
Noise level detector circuit
Publications (2)
Publication Number
Publication Date
GB2020508A
true
GB2020508A
(en)
1979-11-14
GB2020508B
GB2020508B
(en)
1983-03-09
Family
ID=26364706
Family Applications (3)
Application Number
Title
Priority Date
Filing Date
GB7907699A
Expired
GB2020508B
(en)
1978-03-08
1979-03-05
Noise reduction system for colour television signal
GB08213210A
Expired
GB2102651B
(en)
1978-03-08
1979-03-05
Noise reduction system for color television signal
GB08213209A
Expired
GB2102236B
(en)
1978-03-08
1979-03-05
Noise reduction system for colour television signal
Family Applications After (2)
Application Number
Title
Priority Date
Filing Date
GB08213210A
Expired
GB2102651B
(en)
1978-03-08
1979-03-05
Noise reduction system for color television signal
GB08213209A
Expired
GB2102236B
(en)
1978-03-08
1979-03-05
Noise reduction system for colour television signal
Country Status (4)
Country
Link
US
(1)
US4242704A
(en)
CA
(1)
CA1117650A
(en)
FR
(1)
FR2419637A1
(en)
GB
(3)
GB2020508B
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4242705A
(en)
*
1978-09-21
1980-12-30
Sony Corporation
Noise reduction system for video signals
GB2187058A
(en)
*
1986-02-25
1987-08-26
Licentia Gmbh
Regeneration of a reference image
GB2315945A
(en)
*
1981-12-18
1998-02-11
Texas Instruments Inc
Integrated circuit infra-red detector array
Families Citing this family (40)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4352126A
(en)
*
1977-04-14
1982-09-28
Jacques Poncin
System for reducing visible noise in television images
US4500911A
(en)
*
1981-05-25
1985-02-19
Nippon Hoso Kyokai
Noise reduction apparatus
US4396938A
(en)
*
1981-07-23
1983-08-02
Rca Corporation
Controlled ram signal processor
US4470125A
(en)
*
1981-11-09
1984-09-04
Rca Corporation
Multiplier for digital video signals using a cascade of signal-selectable memories
DE3307687C3
(en)
*
1983-03-04
1994-04-28
Broadcast Television Syst
System for reducing noise in a television signal
JPS6030296A
(en)
*
1983-07-29
1985-02-15
Victor Co Of Japan Ltd
Recording and reproducing device of video signal
US4639767A
(en)
*
1983-09-08
1987-01-27
Nec Corporation
Apparatus for detecting movement in a television signal based on taking ratio of signal representing frame difference to signal representing sum of picture element differences
US4561012A
(en)
*
1983-12-27
1985-12-24
Rca Corporation
Pre-emphasis and de-emphasis filters for a composite NTSC format video signal
US4630102A
(en)
*
1984-10-10
1986-12-16
Rca Corporation
Digital chroma overload system
JPH07118784B2
(en)
*
1984-10-27
1995-12-18
ソニー株式会社
Method for detecting motion of television signals
US4665437A
(en)
*
1985-02-04
1987-05-12
Rca Corporation
Adaptive field or frame store processor
US4672429A
(en)
*
1985-02-14
1987-06-09
Faroudja Laboratories, Inc.
Wide bandwidth chrominance noise reduction system
US4670775A
(en)
*
1985-02-14
1987-06-02
Faroudja Laboratories, Inc.
Inter-dimensional chrominance noise reduction system
US4652907A
(en)
*
1985-03-25
1987-03-24
Rca Corporation
Apparatus for adaptively controlling a video signal recursive filter
US4646138A
(en)
*
1985-03-25
1987-02-24
Rca Corporation
Video signal recursive filter with luma/chroma separation
JPS6214593A
(en)
*
1985-07-12
1987-01-23
Hitachi Ltd
Motion detecting circuit for color tv signal
JPS6258793A
(en)
*
1985-09-03
1987-03-14
Victor Co Of Japan Ltd
Simultaneous timing circuit for television signal
US4700365A
(en)
*
1985-10-25
1987-10-13
Rca Corporation
Digital threshold detector with hysteresis
US4661853A
(en)
*
1985-11-01
1987-04-28
Rca Corporation
Interfield image motion detector for video signals
US4684989A
(en)
*
1986-02-07
1987-08-04
Rca Corporation
Signal background noise detector
JPS62272673A
(en)
*
1986-05-20
1987-11-26
Sanyo Electric Co Ltd
Noise reducer
US4752826A
(en)
*
1986-10-20
1988-06-21
The Grass Valley Group, Inc.
Intra-field recursive interpolator
JP2508442B2
(en)
*
1987-06-09
1996-06-19
ソニー株式会社
Noise removal circuit
JPH07101924B2
(en)
*
1987-10-26
1995-11-01
パイオニア株式会社
Video signal noise eliminator
US4910694A
(en)
*
1988-01-11
1990-03-20
Eastman Kodak Co
Method for approximating a value which is a nonlinear function of the linear average of pixel data
JPH02111188A
(en)
*
1988-10-20
1990-04-24
Toshiba Corp
Picture quality improving device
DE3900490A1
(en)
*
1989-01-10
1990-07-12
Broadcast Television Syst
CIRCUIT ARRANGEMENT FOR DECODING COLOR TELEVISION SIGNALS
US5260775A
(en)
*
1990-03-30
1993-11-09
Farouda Yves C
Time domain television noise reduction system
EP0449656A3
(en)
*
1990-03-30
1992-03-18
Yves Charles Faroudja
Time domain television noise reduction system
DE4013474C2
(en)
*
1990-04-27
1995-10-12
Broadcast Television Syst
Arrangement for reducing noise in a video signal
JPH0411466A
(en)
*
1990-04-28
1992-01-16
Sony Corp
Noise reducer
KR950002670B1
(en)
*
1990-12-28
1995-03-24
삼성전자주식회사
Noise reduction apparatus
US5278638A
(en)
*
1991-09-30
1994-01-11
Pioneer Electronic Corporation
Noise reducing circuit for images
JPH05304622A
(en)
*
1992-04-24
1993-11-16
Toshiba Corp
Noise detector and noise reduction device
US6469741B2
(en)
1993-07-26
2002-10-22
Pixel Instruments Corp.
Apparatus and method for processing television signals
JP3436777B2
(en)
*
1993-08-11
2003-08-18
パイオニア株式会社
Playback position selection method and apparatus in noise reduction system
US7852412B1
(en)
*
2006-02-27
2010-12-14
Nvidia Corporation
Video noise level detection
US8675137B2
(en)
*
2010-04-13
2014-03-18
Newport Media, Inc.
Apparatus and method for adaptive filtering
US8773791B1
(en)
*
2013-01-14
2014-07-08
Lsi Corporation
Systems and methods for X-sample based noise cancellation
JP6800806B2
(en)
*
2017-05-09
2020-12-16
キヤノン株式会社
Image processing equipment, image processing methods and programs
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1515551A
(en)
*
1975-04-25
1978-06-28
British Broadcasting Corp
Noise reduction in electrical signals
GB1594341A
(en)
*
1976-10-14
1981-07-30
Micro Consultants Ltd
Picture information processing system for television
US4064530A
(en)
*
1976-11-10
1977-12-20
Cbs Inc.
Noise reduction system for color television
JPS54127623A
(en)
*
1978-03-27
1979-10-03
Nec Corp
S/n improving device for television video signal
1979
1979-03-05
GB
GB7907699A
patent/GB2020508B/en
not_active
Expired
1979-03-05
GB
GB08213210A
patent/GB2102651B/en
not_active
Expired
1979-03-05
GB
GB08213209A
patent/GB2102236B/en
not_active
Expired
1979-03-07
FR
FR7905906A
patent/FR2419637A1/en
active
Granted
1979-03-08
US
US06/018,474
patent/US4242704A/en
not_active
Expired – Lifetime
1979-03-08
CA
CA000322983A
patent/CA1117650A/en
not_active
Expired
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4242705A
(en)
*
1978-09-21
1980-12-30
Sony Corporation
Noise reduction system for video signals
GB2315945A
(en)
*
1981-12-18
1998-02-11
Texas Instruments Inc
Integrated circuit infra-red detector array
GB2315945B
(en)
*
1981-12-18
1998-06-24
Texas Instruments Inc
Integrated circuit detector array incorporating bucket brigade devices for time delay and integration
GB2187058A
(en)
*
1986-02-25
1987-08-26
Licentia Gmbh
Regeneration of a reference image
GB2187058B
(en)
*
1986-02-25
1990-01-17
Licentia Gmbh
Provision of a reference image.
Also Published As
Publication number
Publication date
US4242704A
(en)
1980-12-30
GB2102236A
(en)
1983-01-26
GB2020508B
(en)
1983-03-09
FR2419637B1
(en)
1984-04-13
GB2102651B
(en)
1983-06-02
GB2102236B
(en)
1983-06-08
FR2419637A1
(en)
1979-10-05
GB2102651A
(en)
1983-02-02
CA1117650A
(en)
1982-02-02
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Legal Events
Date
Code
Title
Description
1999-03-24
PE20
Patent expired after termination of 20 years
Effective date:
19990304
