JPH033895U - - Google Patents
Info
- Publication number
- JPH033895U JPH033895U JP6351389U JP6351389U JPH033895U JP H033895 U JPH033895 U JP H033895U JP 6351389 U JP6351389 U JP 6351389U JP 6351389 U JP6351389 U JP 6351389U JP H033895 U JPH033895 U JP H033895U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- reference voltage
- outputs
- sync
- 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
- 238000000926 separation method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
- Burglar Alarm Systems (AREA)
- Image Analysis (AREA)
Description
第１図は本考案の一実施例に係る監視カメラ装
置の回路構成を示す図、第２図はタイムチヤート
である。
２……カメラ部、８……モニター部、１０……
同期分離回路、１２……ウインドウ設定回路、２
０……第１積分ホールド回路、２２……第２積分
ホールド回路、２４……差動増幅器、２６……タ
イミング信号発生回路、３４……ウインドウコン
パレータ、４４……報知回路、４６……第１の基
準電圧発生器、４８……光センサ、５２……加算
回路。
FIG. 1 is a diagram showing a circuit configuration of a surveillance camera device according to an embodiment of the present invention, and FIG. 2 is a time chart. 2...Camera section, 8...Monitor section, 10...
Synchronous separation circuit, 12...Window setting circuit, 2
0...First integral hold circuit, 22...Second integral hold circuit, 24...Differential amplifier, 26...Timing signal generation circuit, 34...Window comparator, 44...Notification circuit, 46...First reference voltage generator, 48...optical sensor, 52...addition circuit.
Claims (1)
り映像を写し出すモニター部と、 前記カメラ部からの信号を入力して垂直同期信
号と、垂直同期信号及び水平同期信号が混合され
たコンポジツト同期信号を出力する同期分離回路
と、 この同期分離回路からの垂直同期信号とコンポ
ジツト同期信号に基づき、前記モニター部に写し
出される映像の特定領域を設定するウインドウ設
定回路と、 このウインドウ設定回路にて設定された特定領
域に対応する映像信号を積分してホールドするた
めの第１及び第２積分ホールド回路と、 この第１及び第２積分ホールド回路にてホール
ドされた値の差を出力可能な差動増幅器と、 前記同期分離回路からの垂直同期信号を分周し
て、前記第１及び第２積分ホールド回路を数フイ
ールド毎に交互にリセツトしてホールドさせる第
１のタイミング信号を出力するとともにこの第１
のタイミング信号発生につづいて前記差動増幅器
を動作させる第２のタイミング信号を出力するタ
イミング信号発生回路と、 第１の基準電圧を発生する第１の基準電圧発生
器と、 前記差動増幅器から出力される差電圧がこの第
１の基準電圧にて定まる電圧レンジを越えるとき
に検出信号を出力するウインドウコンパレータと
、 このウインドウコンパレータの検出信号発生に
応答して報知を行なう報知回路と、 を有する監視カメラ装置において、 外部光に対応した電圧値を前記する光センサと
、 この光センサからの電圧値と前記第１の基準電
圧を加算して前記ウインドウコンパレータに供給
する加算回路と、 を有することを特徴とする監視カメラ装置。[Claims for Utility Model Registration] A camera unit that outputs a video signal and a synchronization signal; a monitor unit that displays an image using the video signal and synchronization signal from the camera unit; and a vertical synchronization unit that inputs signals from the camera unit. a sync separation circuit that outputs a composite sync signal that is a mixture of the signal, a vertical sync signal, and a horizontal sync signal; and a sync separation circuit that outputs a composite sync signal that is a mixture of the vertical sync signal and the horizontal sync signal; a window setting circuit for setting a region; first and second integral hold circuits for integrating and holding a video signal corresponding to the specific region set by the window setting circuit; A differential amplifier capable of outputting the difference between the values held in the hold circuit; and a vertical synchronization signal from the synchronization separation circuit are frequency-divided to alternately operate the first and second integral hold circuits every several fields. A first timing signal to be reset and held is outputted, and this first timing signal is reset and held.
a timing signal generation circuit that outputs a second timing signal that operates the differential amplifier following generation of the timing signal; a first reference voltage generator that generates a first reference voltage; and a first reference voltage generator that generates a first reference voltage from the differential amplifier. A window comparator that outputs a detection signal when the output differential voltage exceeds a voltage range determined by the first reference voltage, and a notification circuit that provides notification in response to generation of the detection signal of the window comparator. The surveillance camera device includes: an optical sensor that generates a voltage value corresponding to external light; and an addition circuit that adds the voltage value from the optical sensor and the first reference voltage and supplies the sum to the window comparator. A surveillance camera device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6351389U JPH033895U (en) | 1989-05-31 | 1989-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6351389U JPH033895U (en) | 1989-05-31 | 1989-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH033895U true JPH033895U (en) | 1991-01-16 |
Family
ID=31593629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6351389U Pending JPH033895U (en) | 1989-05-31 | 1989-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH033895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61152617U (en) * | 1985-03-15 | 1986-09-20 | ||
| JPS6351021U (en) * | 1986-09-24 | 1988-04-06 |
-
1989
- 1989-05-31 JP JP6351389U patent/JPH033895U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61152617U (en) * | 1985-03-15 | 1986-09-20 | ||
| JPS6351021U (en) * | 1986-09-24 | 1988-04-06 | ||
| JPH0425851Y2 (en) * | 1986-09-24 | 1992-06-22 |
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