JPS62188869U - - Google Patents
Info
- Publication number
- JPS62188869U JPS62188869U JP7569786U JP7569786U JPS62188869U JP S62188869 U JPS62188869 U JP S62188869U JP 7569786 U JP7569786 U JP 7569786U JP 7569786 U JP7569786 U JP 7569786U JP S62188869 U JPS62188869 U JP S62188869U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- sawtooth wave
- horizontal
- video
- 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
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Description
第１図は本考案のカメラのビユーフアインダ装
置の一実施例のブロツク系統図、第２図は第１図
の動作説明用のタイムチヤート、第３図は水平検
出器の構成例を示す図、第４図、第５図はビデオ
カメラが水平線方向に対してどの程度傾斜してい
るかビユーフアインダ内に簡便に表示する装置を
示す図である。
１……水平検出器、２……増幅回路、４……振
幅比較回路、５……鋸歯状波発生回路、６……波
形整形回路、７……垂値ゲート回路、８……混合
回路、９……ビデオ信号入力端子、１０……陰極
線管。
Fig. 1 is a block system diagram of an embodiment of the camera viewfinder device of the present invention, Fig. 2 is a time chart for explaining the operation of Fig. 1, and Fig. 3 is a diagram showing an example of the configuration of a horizontal detector. 4 and 5 are diagrams showing a device for simply displaying in a viewfinder how much the video camera is tilted with respect to the horizontal direction. DESCRIPTION OF SYMBOLS 1...Horizontal detector, 2...Amplification circuit, 4...Amplitude comparison circuit, 5...Sawtooth wave generation circuit, 6...Waveform shaping circuit, 7...Vertical value gate circuit, 8...Mixing circuit, 9...Video signal input terminal, 10...Cathode ray tube.
Claims (1)
る水平検出器と、ビデオ信号の水平同期信号と同
期した鋸歯状波信号を発生する鋸歯状波発生回路
と、この鋸歯状波発生回路より発生する鋸歯状波
信号と前記水平検出器より発生するパルス信号を
波形整形する波形整形回路と、この波形整形回路
の出力信号と前記ビデオ信号と同期した垂直同期
信号が供給されてビデオ画面上での垂直方向の表
示位置を調整する垂直ゲート回路と、この垂直ゲ
ート回路の出力信号と前記ビデオ信号と混合する
混合回路と、この混合回路の出信号を再生する陰
極線管とを備えたことを特徴とするカメラのビユ
ーフアインダ装置。 A horizontal detector that detects the slope in the horizontal direction and sends out a detection signal, a sawtooth wave generation circuit that generates a sawtooth wave signal synchronized with the horizontal synchronization signal of the video signal, and a sawtooth wave generation circuit that generates a sawtooth wave signal A waveform shaping circuit that shapes the waveforms of the sawtooth wave signal and the pulse signal generated by the horizontal detector, and an output signal of this waveform shaping circuit and a vertical synchronization signal synchronized with the video signal are supplied, and a vertical synchronization signal on the video screen is supplied. The present invention is characterized by comprising a vertical gate circuit that adjusts the display position in the direction, a mixing circuit that mixes the output signal of the vertical gate circuit with the video signal, and a cathode ray tube that reproduces the output signal of the mixing circuit. Camera viewfinder device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7569786U JPS62188869U (en) | 1986-05-20 | 1986-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7569786U JPS62188869U (en) | 1986-05-20 | 1986-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62188869U true JPS62188869U (en) | 1987-12-01 |
Family
ID=30922083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7569786U Pending JPS62188869U (en) | 1986-05-20 | 1986-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62188869U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966275A (en) * | 1982-10-08 | 1984-04-14 | Hitachi Denshi Ltd | Television camera |
-
1986
- 1986-05-20 JP JP7569786U patent/JPS62188869U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966275A (en) * | 1982-10-08 | 1984-04-14 | Hitachi Denshi Ltd | Television camera |
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