JPS6410794A - Auto white balance device - Google Patents
Auto white balance deviceInfo
- Publication number
- JPS6410794A JPS6410794A JP62166016A JP16601687A JPS6410794A JP S6410794 A JPS6410794 A JP S6410794A JP 62166016 A JP62166016 A JP 62166016A JP 16601687 A JP16601687 A JP 16601687A JP S6410794 A JPS6410794 A JP S6410794A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- timing
- gain control
- output
- specified
- 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.)
- Pending
Links
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To improve a highspeed response and stability by integrating an image pick-up signal during a period specified by a first timing signal and supplying an operation output based on an integration output to a gain control means as a gain control signal at the time specified by a second timing signal. CONSTITUTION:The device is equipped with a gain control means 4, integrating means 16-18 to integrate the output signal of an image pick-up means during a period specified by a first timing signal, an operating means 20 to calculate a signal level value corresponding to a gain control signal based on the output of the integrating means 16-18, a switch means 46 to supply the output of the operating means to the gain control means 4 as a gain control signal by the timing specified by a second timing signal, and a timing control means 49 to generate both timing signals so that an integration division specified by the first timing signal may precede a point in the time specified by the second timing. Thus, since the control is executed by an open loop, the response is quick and the stability is excellent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166016A JPS6410794A (en) | 1987-07-02 | 1987-07-02 | Auto white balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166016A JPS6410794A (en) | 1987-07-02 | 1987-07-02 | Auto white balance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6410794A true JPS6410794A (en) | 1989-01-13 |
Family
ID=15823347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62166016A Pending JPS6410794A (en) | 1987-07-02 | 1987-07-02 | Auto white balance device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6410794A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008008972A (en) * | 2006-06-27 | 2008-01-17 | Kawai Musical Instr Mfg Co Ltd | Keyboard device |
-
1987
- 1987-07-02 JP JP62166016A patent/JPS6410794A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008008972A (en) * | 2006-06-27 | 2008-01-17 | Kawai Musical Instr Mfg Co Ltd | Keyboard device |
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