JPH02138966U - - Google Patents
Info
- Publication number
- JPH02138966U JPH02138966U JP4760589U JP4760589U JPH02138966U JP H02138966 U JPH02138966 U JP H02138966U JP 4760589 U JP4760589 U JP 4760589U JP 4760589 U JP4760589 U JP 4760589U JP H02138966 U JPH02138966 U JP H02138966U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- video signal
- circuit
- processing device
- illuminance
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Studio Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760589U JPH02138966U (fi) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760589U JPH02138966U (fi) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02138966U true JPH02138966U (fi) | 1990-11-20 |
Family
ID=31563680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4760589U Pending JPH02138966U (fi) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02138966U (fi) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234469A (ja) * | 1985-08-07 | 1987-02-14 | Hitachi Ltd | ビデオカメラの電子ビユ−フアインダ−内表示方式 |
| JPS62120172A (ja) * | 1985-11-20 | 1987-06-01 | Matsushita Electric Ind Co Ltd | 文字信号混合装置 |
-
1989
- 1989-04-21 JP JP4760589U patent/JPH02138966U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234469A (ja) * | 1985-08-07 | 1987-02-14 | Hitachi Ltd | ビデオカメラの電子ビユ−フアインダ−内表示方式 |
| JPS62120172A (ja) * | 1985-11-20 | 1987-06-01 | Matsushita Electric Ind Co Ltd | 文字信号混合装置 |
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