CA1063234A - Automatic correction circuit for the color balance of a color television signal - Google Patents

Automatic correction circuit for the color balance of a color television signal

Info

Publication number
CA1063234A
CA1063234A CA237,453A CA237453A CA1063234A CA 1063234 A CA1063234 A CA 1063234A CA 237453 A CA237453 A CA 237453A CA 1063234 A CA1063234 A CA 1063234A
Authority
CA
Canada
Prior art keywords
signal
circuit means
signals
color
correction
Prior art date
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
CA237,453A
Other languages
English (en)
French (fr)
Other versions
CA237453S (en
Inventor
Dieter Poetsch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of CA1063234A publication Critical patent/CA1063234A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Image Signal Generators (AREA)
CA237,453A 1974-10-11 1975-10-10 Automatic correction circuit for the color balance of a color television signal Expired CA1063234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2448505A DE2448505C3 (de) 1974-10-11 1974-10-11 System zur selbsttätigen Korrektur der Farbbalance

Publications (1)

Publication Number Publication Date
CA1063234A true CA1063234A (en) 1979-09-25

Family

ID=5928076

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237,453A Expired CA1063234A (en) 1974-10-11 1975-10-10 Automatic correction circuit for the color balance of a color television signal

Country Status (8)

Country Link
US (1) US4047202A (https=)
JP (1) JPS6040237B2 (https=)
BR (1) BR7506648A (https=)
CA (1) CA1063234A (https=)
DE (1) DE2448505C3 (https=)
FR (1) FR2287819A1 (https=)
GB (1) GB1506413A (https=)
NL (1) NL7511887A (https=)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543218A1 (de) * 1975-09-27 1977-04-07 Bosch Gmbh Robert System zur selbsttaetigen korrektur der farbbalance zwischen den farbwertsignalen einer farbsignalquelle
JPS5493323A (en) * 1977-12-08 1979-07-24 Hitachi Denshi Ltd White and black balance control system for color television camera
JPS604637B2 (ja) * 1980-06-02 1985-02-05 日本ビクター株式会社 テレビジヨンカメラにおける自動白色調節回路
JPS57197987A (en) * 1981-05-30 1982-12-04 Sony Corp White balance correcting device
DE3486390T3 (de) * 1983-03-08 1999-05-12 Canon K.K., Tokio/Tokyo Bildverarbeitungsgerät.
JPS6318933U (https=) * 1986-07-24 1988-02-08
US4805010A (en) * 1987-05-29 1989-02-14 Eastman Kodak Company Still video camera with common circuit for color balance and exposure control
US4814864A (en) * 1987-05-29 1989-03-21 Eastman Kodak Co. Video camera with automatic prescaling for color balance
JPH02102140U (https=) * 1989-01-27 1990-08-14
JPH02287594A (ja) * 1989-04-28 1990-11-27 Sony Corp クリアブルー回路
DE3924336C2 (de) * 1989-07-22 1998-12-03 Philips Broadcast Television S Schaltungsanordnung zur automatischen Korrektur der Farbbalance
US5097335A (en) * 1989-10-02 1992-03-17 Eastman Kodak Company Mechanism for eliminating colored shadow/highlight errors in scanned color image
US5361093A (en) * 1991-09-02 1994-11-01 Matsushita Electric Industrial Co., Ltd. Automatic white balance setting device
US5274439A (en) * 1992-03-31 1993-12-28 Panasonic Technologies, Inc. Apparatus for clipping or limiting color signals to maintain color balance
JP4063418B2 (ja) * 1998-09-11 2008-03-19 イーストマン コダック カンパニー オートホワイトバランス装置
US6553140B1 (en) * 1999-04-16 2003-04-22 Avid Technology, Inc. Method and system for spill correction
US8374428B2 (en) 2010-12-05 2013-02-12 Microsoft Corporation Color balancing for partially overlapping images

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814369B1 (https=) * 1969-02-22 1973-05-07
DE1939515B2 (de) * 1969-08-02 1971-05-19 Fernseh GmbH 6100 Darmstadt Verfahren und anoednung zur korrektur von farbfehlern bei der fernsehmaessigen abtastung von farbfilmen
NL7009523A (https=) * 1970-06-27 1971-12-29
US3735026A (en) * 1971-09-03 1973-05-22 Columbia Broadcasting Syst Inc Automatic color corrector for a color video signal
JPS545927B2 (https=) * 1972-10-19 1979-03-23
US3786177A (en) * 1972-06-19 1974-01-15 Rca Corp Apparatus for automatic color balancing of television camera signals
US3821789A (en) * 1972-11-06 1974-06-28 Magnavox Co Chroma tracking circuit

Also Published As

Publication number Publication date
DE2448505B2 (de) 1977-06-30
FR2287819A1 (fr) 1976-05-07
FR2287819B1 (https=) 1982-08-27
DE2448505C3 (de) 1978-03-09
JPS5164825A (en) 1976-06-04
GB1506413A (en) 1978-04-05
US4047202A (en) 1977-09-06
NL7511887A (nl) 1976-04-13
BR7506648A (pt) 1976-08-17
JPS6040237B2 (ja) 1985-09-10
DE2448505A1 (de) 1976-04-15

Similar Documents

Publication Publication Date Title
CA1063234A (en) Automatic correction circuit for the color balance of a color television signal
US4319266A (en) Chroma keying system
US4533938A (en) Color modifier for composite video signals
CA1138099A (en) Luminance control circuit for a television receiver
US4680624A (en) Signal processing circuit for a color video camera providing shading correction by varying the black clamping level
US4292649A (en) Composite video signal combining system
US5068718A (en) Image quality correcting system for use with an imaging apparatus
US4035835A (en) System for automatic correction of the color balance between the primary signals of a color signal source
US3928867A (en) Television receiver with picture level control
US4694330A (en) Color correction circuit
US5177599A (en) White balance controller for an image pick-up apparatus including an abnormality detector
US4480266A (en) Method and apparatus for preventing generation of false color signals in color television cameras
US4202009A (en) Processing amplifier for three-tube color television camera
US4167750A (en) Color-difference signal modifying apparatus
US3072741A (en) Television brightness and contrast control circuit
US4051510A (en) Hue correction apparatus controlled by chrominance saturation
GB2046055A (en) Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter
US4130831A (en) Color television control circuit for use with a VIR signal
US3179743A (en) Television brightness and contrast control circuit
GB781537A (en) Color-saturation control apparatus
CA1073094A (en) Color correction circuit for a color television receiver
US2892028A (en) Automatic white level limit control
CA1115411A (en) Chroma level stabilizer
CA1098614A (en) System for automatic correction of the color balance between the primary signals of a color signal source
CA1162298A (en) Color temperature control circuit