JPH0241580U - - Google Patents
Info
- Publication number
- JPH0241580U JPH0241580U JP12078688U JP12078688U JPH0241580U JP H0241580 U JPH0241580 U JP H0241580U JP 12078688 U JP12078688 U JP 12078688U JP 12078688 U JP12078688 U JP 12078688U JP H0241580 U JPH0241580 U JP H0241580U
- Authority
- JP
- Japan
- Prior art keywords
- timer
- signal
- switch
- circuit
- call switch
- 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 1
- 230000004044 response Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
- Burglar Alarm Systems (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Description
図面は、本考案の一実施例に係るテレビカメラ
付ドアフオンの回路図。
６……コールスイツチ、８……カメラ部、１４
……モニターテレビ、２０……フツクスイツチ、
３０……メモリ、３４……表示回路、３６……カ
ウンタ、３８……ゲート回路、４０……第２のタ
イマー、４６……第３のタイマー。
The drawing is a circuit diagram of a door phone with a television camera according to an embodiment of the present invention. 6...Call switch, 8...Camera section, 14
...Monitor TV, 20...Full switch,
30...Memory, 34...Display circuit, 36...Counter, 38...Gate circuit, 40...Second timer, 46...Third timer.
Claims (1)
ラ部、およびコールスイツチと、室内に設置され
、前記第１の送受話器と対となる第２の送受話器
と、前記コールスイツチのオン操作に応答して報
知用信号を出力する報知回路と、前記コールスイ
ツチのオン操作から一定時間タイマ信号を出力す
る第１のタイマ回路と、前記第２の送受話器が取
り上げられたことを検知するフツクスイツチと、
このフツクスイツチからの検知信号および前記第
１のタイマ回路からのタイマ信号が発生している
ときにのみ前記カメラ部からの映像信号を受けて
映像を写し出すモニターテレビと、を有するテレ
ビカメラ付ドアフオンにおいて、 前記コールスイツチのオン操作から一定時間経
過後出力信号を発生する第２のタイマーと、 この第２のタイマーの出力信号非発生時にのみ
前記コールスイツチのオン操作信号を通過させる
ゲート回路と、 前記コールスイツチのオン操作時から前記第２
のタイマーより長い時間経過後に出力信号を発生
する第３のタイマーと、 前記カメラ部からの映像信号データを書き込み
信号の入力により記憶可能なメモリと、 前記ゲート回路からのオン操作信号の発生回数
をカウントするとともに前記第３のタイマーから
の出力信号によりそのカウント値がクリアされ、
さらにそのカウント値が一定値以上になつたとき
に前記メモリに書き込み信号を出力するカウンタ
と、 前記メモリからの映像信号を表示する表示回路
と、 を有することを特徴とするテレビカメラ付ドア
フオン。[Claims for Utility Model Registration] A first handset, a camera unit, and a call switch installed near the entrance, and a second handset installed indoors and paired with the first handset. , a notification circuit that outputs a notification signal in response to the on operation of the call switch; a first timer circuit that outputs a timer signal for a certain period of time from the on operation of the call switch; a switch that detects when the
A door phone with a television camera, comprising: a monitor television that receives a video signal from the camera section and projects an image only when a detection signal from the switch and a timer signal from the first timer circuit are generated; a second timer that generates an output signal after a predetermined period of time has elapsed since the call switch is turned on; a gate circuit that allows the call switch ON signal to pass only when the second timer does not generate an output signal; When the switch is turned on, the second
a third timer that generates an output signal after a time longer than the timer; a memory capable of storing video signal data from the camera unit by inputting a write signal; While counting, the count value is cleared by the output signal from the third timer,
A door-on with a television camera, further comprising: a counter that outputs a write signal to the memory when the count value exceeds a certain value; and a display circuit that displays a video signal from the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12078688U JPH0416545Y2 (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12078688U JPH0416545Y2 (en) | 1988-09-13 | 1988-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241580U true JPH0241580U (en) | 1990-03-22 |
| JPH0416545Y2 JPH0416545Y2 (en) | 1992-04-14 |
Family
ID=31367209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12078688U Expired JPH0416545Y2 (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416545Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04150391A (en) * | 1990-10-11 | 1992-05-22 | Aiphone Co Ltd | Video intercom equipment |
-
1988
- 1988-09-13 JP JP12078688U patent/JPH0416545Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04150391A (en) * | 1990-10-11 | 1992-05-22 | Aiphone Co Ltd | Video intercom equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416545Y2 (en) | 1992-04-14 |
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