JPS5477531A - White control circuit for color television picture receiver - Google Patents
White control circuit for color television picture receiverInfo
- Publication number
- JPS5477531A JPS5477531A JP14531577A JP14531577A JPS5477531A JP S5477531 A JPS5477531 A JP S5477531A JP 14531577 A JP14531577 A JP 14531577A JP 14531577 A JP14531577 A JP 14531577A JP S5477531 A JPS5477531 A JP S5477531A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- video gain
- control
- white control
- 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
Links
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To ensure an accurate white control in an extremely short time by applying the output to the video gain variable circuit or to the pedestal clamping circuit reproducing the black level in order to control the video gain in accordance with the output given from the waveform shaping circuit.
CONSTITUTION: Feedback circuit 13 relating to vertical deflecting output circuit 11 is controlled. At the same time, waveform shaping circuit 14 is installed to receive the signal the straight line part is distorted from circuit 13 and to give the operation to the signal waveform. The output is applied to video gain variable circuit 3 to control the video gain according to the output given from circuit 14, or the output is applied to pedestal clamping circuit 7 reproducing the black level in order to carry out the white control. As a result, an accurate white contol is ensured in an extremely short time through just one-time switching of the service switch.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14531577A JPS6022553B2 (en) | 1977-12-02 | 1977-12-02 | White adjustment circuit for color television receivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14531577A JPS6022553B2 (en) | 1977-12-02 | 1977-12-02 | White adjustment circuit for color television receivers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5477531A true JPS5477531A (en) | 1979-06-21 |
JPS6022553B2 JPS6022553B2 (en) | 1985-06-03 |
Family
ID=15382308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14531577A Expired JPS6022553B2 (en) | 1977-12-02 | 1977-12-02 | White adjustment circuit for color television receivers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6022553B2 (en) |
-
1977
- 1977-12-02 JP JP14531577A patent/JPS6022553B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6022553B2 (en) | 1985-06-03 |
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