JPS55163970A - Color solid-state pickup unit - Google Patents
Color solid-state pickup unitInfo
- Publication number
- JPS55163970A JPS55163970A JP7142079A JP7142079A JPS55163970A JP S55163970 A JPS55163970 A JP S55163970A JP 7142079 A JP7142079 A JP 7142079A JP 7142079 A JP7142079 A JP 7142079A JP S55163970 A JPS55163970 A JP S55163970A
- Authority
- JP
- Japan
- Prior art keywords
- color
- signal
- circuit
- state pickup
- level
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
- H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements
Abstract
PURPOSE:To prevent color unbalance of a color solid-state pickup unit using a solid-state pickup plate, by exercising gain control over three primary color signals by one amplifying circuit. CONSTITUTION:Color solid-state pickup plate 7, obtained by combining stripe color filters, for example, is driven by a clock pulse from clock pulse generating circuit 23. Its output is sampled by sample holding circuit 24, whose output is supplied to amplifying circuit 26. This amplifying circuit 26 is brought under the control of the signal of gain control signal generating circuit 27 to increase in amplification degree for a color signal low in level and to decrease in amplification degree for that low in level. Therefore, R signal, G signal and B signal from circuit 26 become video signals equal in level and three primary color signal levels from separating circuit 28 agree with one another without fail. Thus, color unbalance can be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7142079A JPS55163970A (en) | 1979-06-07 | 1979-06-07 | Color solid-state pickup unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7142079A JPS55163970A (en) | 1979-06-07 | 1979-06-07 | Color solid-state pickup unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55163970A true JPS55163970A (en) | 1980-12-20 |
Family
ID=13459993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7142079A Pending JPS55163970A (en) | 1979-06-07 | 1979-06-07 | Color solid-state pickup unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55163970A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2472894A1 (en) * | 1979-12-24 | 1981-07-03 | Sony Corp | TELEVISION CAMERA IN SOLID STATE TECHNIQUE |
| FR2522237A1 (en) * | 1982-02-19 | 1983-08-26 | Thomson Brandt | Processing circuit for colour TV camera detector - uses analyser to produce colour signals for each point of matrix detector |
| JPS5980087A (en) * | 1982-10-29 | 1984-05-09 | Canon Inc | Image pickup device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033361A (en) * | 1973-07-30 | 1975-03-31 |
-
1979
- 1979-06-07 JP JP7142079A patent/JPS55163970A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033361A (en) * | 1973-07-30 | 1975-03-31 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2472894A1 (en) * | 1979-12-24 | 1981-07-03 | Sony Corp | TELEVISION CAMERA IN SOLID STATE TECHNIQUE |
| FR2522237A1 (en) * | 1982-02-19 | 1983-08-26 | Thomson Brandt | Processing circuit for colour TV camera detector - uses analyser to produce colour signals for each point of matrix detector |
| JPS5980087A (en) * | 1982-10-29 | 1984-05-09 | Canon Inc | Image pickup device |
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