JPS54124628A - Signal compensating system - Google Patents
Signal compensating systemInfo
- Publication number
- JPS54124628A JPS54124628A JP3174578A JP3174578A JPS54124628A JP S54124628 A JPS54124628 A JP S54124628A JP 3174578 A JP3174578 A JP 3174578A JP 3174578 A JP3174578 A JP 3174578A JP S54124628 A JPS54124628 A JP S54124628A
- Authority
- JP
- Japan
- Prior art keywords
- cell
- delay
- delay circuit
- output
- signal
- 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
- Transforming Light Signals Into Electric Signals (AREA)
- Facsimile Heads (AREA)
Abstract
PURPOSE: To substitute a signal, which is obtained by synthesizing signals of upper, lower, right and left cells adjacent to a faulty cell, for the output signal of the faulty cell by regarding the cell as the faulty cell when the output 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 delay circuit 1, which has a delay time equal to the scanning time across adjacent cells in the horizontal direction, and delay circuits 2, 2a and 2b which have a delay time equal to the scanning time of a horizontal scanning line. Output b of delay circuit 2 is applied to delay circuit 1a which has the same delay time as delay circuit 1, and outputs of delay circuits 1, 1a, 2a and 2b are synthesized in synthesizer circuit 3, and the amplitude is reduced to 1/4 by an attenuator. The output of delay circuit 2 is compared in comparator 5 where white level W and black level B are applied; and when the cell is decided as a faulty cell, switch 7 is closed and switch 6 is opened.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3174578A JPS54124628A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3174578A JPS54124628A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54124628A true JPS54124628A (en) | 1979-09-27 |
Family
ID=12339554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3174578A Pending JPS54124628A (en) | 1978-03-22 | 1978-03-22 | Signal compensating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54124628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156482A (en) * | 1979-05-25 | 1980-12-05 | Hitachi Ltd | Image sensor |
| WO1985005752A1 (en) * | 1984-06-01 | 1985-12-19 | Matsushita Electric Industrial Co., Ltd. | Defect correcting device |
| JPS6388971A (en) * | 1986-10-02 | 1988-04-20 | Nec Corp | Solid-state image picking up and reproducing device |
-
1978
- 1978-03-22 JP JP3174578A patent/JPS54124628A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156482A (en) * | 1979-05-25 | 1980-12-05 | Hitachi Ltd | Image sensor |
| 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 |
| JPS6388971A (en) * | 1986-10-02 | 1988-04-20 | Nec Corp | Solid-state image picking up and reproducing device |
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