JPS54124627A - Signal compensating system - Google Patents
Signal compensating systemInfo
- Publication number
- JPS54124627A JPS54124627A JP3174478A JP3174478A JPS54124627A JP S54124627 A JPS54124627 A JP S54124627A JP 3174478 A JP3174478 A JP 3174478A JP 3174478 A JP3174478 A JP 3174478A JP S54124627 A JPS54124627 A JP S54124627A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- cell
- faulty cell
- faulty
- image sensor
- 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
- 239000007787 solid Substances 0.000 abstract 2
- 230000002194 synthesizing effect Effects 0.000 abstract 2
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
- Facsimile Heads (AREA)
Abstract
PURPOSE: To substitute a signal, which is obtained by synthesizing upper and lower cells on scanning lines adjacent to a faulty cell, for the output signal of the faulty cell by regarding the cell as the faulty cell when the output signal of the specific cell is not between a white level and a black level in the signal compensating system of a solid image sensor.
CONSTITUTION: Picture signals from a solid image sensor are applied to input terminal IN, and are applied to delay circuits 1 and 1a which have a delay time equal to the scanning time of a horizontal scanning line. White level reference signal W and black level reference signal B are compared with each other, and switch 3 is opened and switch 4 is closed when a faulty cell is discriminated. Then, the signal obtained by synthesizing upper and lower normal signals a and c of the faulty cell in adder 5 and operating the average value of them in attenuator 6 is substituted for signal b of faulty cell 9 and is outputted to terminal OUT.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3174478A JPS54124627A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3174478A JPS54124627A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54124627A true JPS54124627A (en) | 1979-09-27 |
Family
ID=12339527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3174478A Pending JPS54124627A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54124627A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55156482A (en) * | 1979-05-25 | 1980-12-05 | Hitachi Ltd | Image sensor |
WO1982003146A1 (en) * | 1981-03-10 | 1982-09-16 | Corp Rca | Error correction arrangement for imagers |
JPS58119286A (en) * | 1982-01-06 | 1983-07-15 | Sanyo Electric Co Ltd | Color two-dimension image pickup device |
JPS58111561U (en) * | 1982-01-22 | 1983-07-29 | 日立電子株式会社 | Solid-state imaging device delay circuit |
US4481539A (en) * | 1981-03-10 | 1984-11-06 | Rca Corporation | Error correction arrangement for imagers |
WO1985005752A1 (en) * | 1984-06-01 | 1985-12-19 | Matsushita Electric Industrial Co., Ltd. | Defect correcting device |
-
1978
- 1978-03-22 JP JP3174478A patent/JPS54124627A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55156482A (en) * | 1979-05-25 | 1980-12-05 | Hitachi Ltd | Image sensor |
WO1982003146A1 (en) * | 1981-03-10 | 1982-09-16 | Corp Rca | Error correction arrangement for imagers |
US4481539A (en) * | 1981-03-10 | 1984-11-06 | Rca Corporation | Error correction arrangement for imagers |
JPS58119286A (en) * | 1982-01-06 | 1983-07-15 | Sanyo Electric Co Ltd | Color two-dimension image pickup device |
JPS58111561U (en) * | 1982-01-22 | 1983-07-29 | 日立電子株式会社 | Solid-state imaging device delay circuit |
WO1985005752A1 (en) * | 1984-06-01 | 1985-12-19 | Matsushita Electric Industrial Co., Ltd. | Defect correcting device |
US4701784A (en) * | 1984-06-01 | 1987-10-20 | Matsushita Electric Industrial Co., Ltd. | Pixel defect correction apparatus |
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