JPS5561175A - Automatic sensitivity adjusting circuit for television camera - Google Patents
Automatic sensitivity adjusting circuit for television cameraInfo
- Publication number
- JPS5561175A JPS5561175A JP13423078A JP13423078A JPS5561175A JP S5561175 A JPS5561175 A JP S5561175A JP 13423078 A JP13423078 A JP 13423078A JP 13423078 A JP13423078 A JP 13423078A JP S5561175 A JPS5561175 A JP S5561175A
- Authority
- JP
- Japan
- Prior art keywords
- section
- circuit
- period
- image section
- storage
- 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)
Abstract
PURPOSE: To automatically perform sensitivity adjustment, every frame period, by automatically producing the time determined with the CCD output signal for the pulse signal determining the charge storage time at the frame scanning period image section.
CONSTITUTION: The light input of CCD 12 consisting of the image section 21, storage section 22, and readout section 23, is made for photo electric conversion at the image section 21 to store charge, and the storage period is changed with the production timing of clear pulse CL. Further, during the frame blanking period, transfer is made to the storage section 22 in high speed and it is transferred to the readout section 23 every scanning one line period. The output read out is branched at the preamplifier 14, one is composite video signal through the addition circuit 15, and another is DC voltage in response to the pick up output signal level at the integration circuit 16 and fed to the comparator 18, where the output voltage of the circuit 16 and the triangle wave voltage produced from the circuit 13 produce the coincidence pulse. After that, the wave shape circuit 19 performs differentiation and waveshape to establish clear pulse CL and to control the stored charge in the image section 21.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13423078A JPS5561175A (en) | 1978-10-31 | 1978-10-31 | Automatic sensitivity adjusting circuit for television camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13423078A JPS5561175A (en) | 1978-10-31 | 1978-10-31 | Automatic sensitivity adjusting circuit for television camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5561175A true JPS5561175A (en) | 1980-05-08 |
Family
ID=15123458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13423078A Pending JPS5561175A (en) | 1978-10-31 | 1978-10-31 | Automatic sensitivity adjusting circuit for television camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5561175A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5795771A (en) * | 1980-12-05 | 1982-06-14 | Fuji Photo Film Co Ltd | Solid-state image pickup device |
JPS6221377A (en) * | 1985-07-22 | 1987-01-29 | Nippon Kogaku Kk <Nikon> | Driver for video camera using ccd |
JPS62258563A (en) * | 1986-05-01 | 1987-11-11 | Omron Tateisi Electronics Co | Still image pickup camera |
JPS6354889A (en) * | 1986-08-25 | 1988-03-09 | Omron Tateisi Electronics Co | Vehicle number plate reader |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5062518A (en) * | 1973-10-03 | 1975-05-28 | ||
JPS52151517A (en) * | 1976-06-11 | 1977-12-16 | Matsushita Electric Ind Co Ltd | Solid photographing equipment |
-
1978
- 1978-10-31 JP JP13423078A patent/JPS5561175A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5062518A (en) * | 1973-10-03 | 1975-05-28 | ||
JPS52151517A (en) * | 1976-06-11 | 1977-12-16 | Matsushita Electric Ind Co Ltd | Solid photographing equipment |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5795771A (en) * | 1980-12-05 | 1982-06-14 | Fuji Photo Film Co Ltd | Solid-state image pickup device |
JPH0223072B2 (en) * | 1980-12-05 | 1990-05-22 | Fuji Photo Film Co Ltd | |
JPS6221377A (en) * | 1985-07-22 | 1987-01-29 | Nippon Kogaku Kk <Nikon> | Driver for video camera using ccd |
JPS62258563A (en) * | 1986-05-01 | 1987-11-11 | Omron Tateisi Electronics Co | Still image pickup camera |
JPS6354889A (en) * | 1986-08-25 | 1988-03-09 | Omron Tateisi Electronics Co | Vehicle number plate reader |
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