JPH0211068B2 - - Google Patents
Info
- Publication number
- JPH0211068B2 JPH0211068B2 JP55109276A JP10927680A JPH0211068B2 JP H0211068 B2 JPH0211068 B2 JP H0211068B2 JP 55109276 A JP55109276 A JP 55109276A JP 10927680 A JP10927680 A JP 10927680A JP H0211068 B2 JPH0211068 B2 JP H0211068B2
- Authority
- JP
- Japan
- Prior art keywords
- subject
- circuit
- video signal
- detection
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 57
- 230000000737 periodic effect Effects 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 11
- 238000005286 illumination Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 6
- 239000000284 extract Substances 0.000 claims 1
- 230000008859 change Effects 0.000 description 16
- 230000007257 malfunction Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009194 climbing Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/40—Circuit details for pick-up tubes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10927680A JPS5735480A (en) | 1980-08-11 | 1980-08-11 | Automatic focussing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10927680A JPS5735480A (en) | 1980-08-11 | 1980-08-11 | Automatic focussing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5735480A JPS5735480A (en) | 1982-02-26 |
| JPH0211068B2 true JPH0211068B2 (zh) | 1990-03-12 |
Family
ID=14506057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10927680A Granted JPS5735480A (en) | 1980-08-11 | 1980-08-11 | Automatic focussing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5735480A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7532303B2 (en) | 2006-05-16 | 2009-05-12 | Citizen Holdings Co., Ltd. | Automatic focusing apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6170867A (ja) * | 1984-09-14 | 1986-04-11 | Matsushita Electric Ind Co Ltd | 螢光灯フリツカ検出装置 |
| JPH02274180A (ja) * | 1989-04-17 | 1990-11-08 | Sharp Corp | オートフォーカス装置 |
| JPH0678207A (ja) * | 1993-04-05 | 1994-03-18 | Matsushita Electric Ind Co Ltd | 蛍光灯フリッカ検出装置 |
-
1980
- 1980-08-11 JP JP10927680A patent/JPS5735480A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7532303B2 (en) | 2006-05-16 | 2009-05-12 | Citizen Holdings Co., Ltd. | Automatic focusing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5735480A (en) | 1982-02-26 |
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