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JPS54105925A - Automatic white balance adjuster - Google Patents

Automatic white balance adjuster

Info

Publication number
JPS54105925A
JPS54105925A JP1322678A JP1322678A JPS54105925A JP S54105925 A JPS54105925 A JP S54105925A JP 1322678 A JP1322678 A JP 1322678A JP 1322678 A JP1322678 A JP 1322678A JP S54105925 A JPS54105925 A JP S54105925A
Authority
JP
Japan
Prior art keywords
white balance
light
color
output
automatic
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.)
Granted
Application number
JP1322678A
Other languages
Japanese (ja)
Other versions
JPS6123915B2 (en
Inventor
Sumi Murakami
Mineo Hidaka
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.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1322678A priority Critical patent/JPS54105925A/en
Publication of JPS54105925A publication Critical patent/JPS54105925A/en
Publication of JPS6123915B2 publication Critical patent/JPS6123915B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE: To ensure an effective adjustment for the white balance of the color TV picture receiver by securing the automatic rotations for the screen or drive use variable resistor via a motor and then stopping the motor automatically when the white balance is secured.
CONSTITUTION: High-light and low-light photo detector 2 and 3 are distributed in front of color picture tube 1 so that they may receive the beams of each raster with a constitution through which color signal R, G and B are delivered, and each output is applied to automatic high-light and low-light adjusting generator 4 and 5. Generator 4 and 5 convert the received signals into the DC signals to apply them to monitor control part 6. Driver 12 is turned by the motor turning output of part 6, and thus variable resistor 13 connected to tube 1 is turned to secure an automatic adjustment for the white balance. At the same time, the output of part 4 and 5 is applied to control part 8 and then applied to antenna terminal 10 via RF modulator 9. As a result, the brightness of the color picture tube can be made constant automatically.
COPYRIGHT: (C)1979,JPO&Japio
JP1322678A 1978-02-07 1978-02-07 Automatic white balance adjuster Granted JPS54105925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1322678A JPS54105925A (en) 1978-02-07 1978-02-07 Automatic white balance adjuster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1322678A JPS54105925A (en) 1978-02-07 1978-02-07 Automatic white balance adjuster

Publications (2)

Publication Number Publication Date
JPS54105925A true JPS54105925A (en) 1979-08-20
JPS6123915B2 JPS6123915B2 (en) 1986-06-07

Family

ID=11827257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1322678A Granted JPS54105925A (en) 1978-02-07 1978-02-07 Automatic white balance adjuster

Country Status (1)

Country Link
JP (1) JPS54105925A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516515A (en) * 1978-07-21 1980-02-05 Toshiba Corp Regulator for white balance of color braun tube
JPS61123379A (en) * 1984-11-20 1986-06-11 Sony Corp White balance adjustment device
JPS61237588A (en) * 1985-04-12 1986-10-22 Sony Corp Monitor television device
JPS61237589A (en) * 1985-04-12 1986-10-22 Sony Corp Monitor television device
US4742387A (en) * 1986-03-17 1988-05-03 Sony Corporation Method and apparatus for automatically establishing a color balance of a color television monitor including an ambient light sensing and data compensating function
US4746970A (en) * 1985-01-09 1988-05-24 Sony Corporation White uniformity correcting apparatus for a three-color display wherein correction signals are stored in a memory

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516515A (en) * 1978-07-21 1980-02-05 Toshiba Corp Regulator for white balance of color braun tube
JPS5919510B2 (en) * 1978-07-21 1984-05-07 株式会社東芝 Color-CRT white balance adjustment device
JPS61123379A (en) * 1984-11-20 1986-06-11 Sony Corp White balance adjustment device
US4746970A (en) * 1985-01-09 1988-05-24 Sony Corporation White uniformity correcting apparatus for a three-color display wherein correction signals are stored in a memory
JPS61237588A (en) * 1985-04-12 1986-10-22 Sony Corp Monitor television device
JPS61237589A (en) * 1985-04-12 1986-10-22 Sony Corp Monitor television device
US4742387A (en) * 1986-03-17 1988-05-03 Sony Corporation Method and apparatus for automatically establishing a color balance of a color television monitor including an ambient light sensing and data compensating function

Also Published As

Publication number Publication date
JPS6123915B2 (en) 1986-06-07

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