JPS62125075U - - Google Patents
Info
- Publication number
- JPS62125075U JPS62125075U JP1183186U JP1183186U JPS62125075U JP S62125075 U JPS62125075 U JP S62125075U JP 1183186 U JP1183186 U JP 1183186U JP 1183186 U JP1183186 U JP 1183186U JP S62125075 U JPS62125075 U JP S62125075U
- Authority
- JP
- Japan
- Prior art keywords
- vertical contour
- detection circuit
- pass filter
- detects
- video 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例のオートフオーカス
制御装置のブロツク回路図、第２図は同実施例の
装置に用いられる垂直輪郭検出回路のブロツク回
路図、第３図は第２図の回路における各部の信号
波形図、第４図は従来のオートフオーカス制御装
置のブロツク回路図である。
１：フオーカスレンズ、３：撮像素子、４：カ
メラ回路、５：ハイパスフイルター、６：焦点電
圧検出回路、１４：垂直輪郭検出回路、１５：ミ
ツクス回路。
FIG. 1 is a block circuit diagram of an autofocus control device according to an embodiment of the present invention, FIG. 2 is a block circuit diagram of a vertical contour detection circuit used in the device of the same embodiment, and FIG. FIG. 4 is a block circuit diagram of a conventional autofocus control device. 1: Focus lens, 3: Image sensor, 4: Camera circuit, 5: High pass filter, 6: Focus voltage detection circuit, 14: Vertical contour detection circuit, 15: Mix circuit.
Claims (1)
り高域成分を検出するハイパスフイルターと、前
記映像信号より垂直輪郭成分を検出する垂直輪郭
検出回路とを備え、前記ハイパスフイルター及び
前記垂直輪郭検出回路の出力信号を用いて合焦状
態を検出してなることを特徴とするオートフオー
カス制御装置。 A high-pass filter that detects a high-frequency component from a video signal obtained by an image sensor of a video camera, and a vertical contour detection circuit that detects a vertical contour component from the video signal, the high-pass filter and the vertical contour detection circuit comprising: An autofocus control device characterized by detecting a focusing state using an output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183186U JPH0528857Y2 (en) | 1986-01-28 | 1986-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183186U JPH0528857Y2 (en) | 1986-01-28 | 1986-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125075U true JPS62125075U (en) | 1987-08-08 |
| JPH0528857Y2 JPH0528857Y2 (en) | 1993-07-23 |
Family
ID=30799400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1183186U Expired - Lifetime JPH0528857Y2 (en) | 1986-01-28 | 1986-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528857Y2 (en) |
-
1986
- 1986-01-28 JP JP1183186U patent/JPH0528857Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528857Y2 (en) | 1993-07-23 |
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