JPS60177545U - intercom device - Google Patents
intercom deviceInfo
- Publication number
- JPS60177545U JPS60177545U JP1984065187U JP6518784U JPS60177545U JP S60177545 U JPS60177545 U JP S60177545U JP 1984065187 U JP1984065187 U JP 1984065187U JP 6518784 U JP6518784 U JP 6518784U JP S60177545 U JPS60177545 U JP S60177545U
- Authority
- JP
- Japan
- Prior art keywords
- visitor
- light
- receiving element
- intercom device
- comparator
- 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
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図乃至第３図は本考案の一実施例を示す。
第１図は来訪者への照射光を制御する回路、第２図は本
装置の全体説明図、第３図は撮像部への入射光を減光す
る制御回路を示す。
１・・・・・・子機、２・・・・・・押ボタン、３．
４． ５・・・・・・発光部、６・・・・・・撮像部、
７・・・・・・親機、８・・・・・・第１受光部、９・
・・・・・モニター画面、１０・・曲第２受光部、１１
・・・・・・中央部、１２，１４・・・・・・受話器、
１３．１５・・・・・・送話器、１６・・・・・・モニ
タースイッチ、１７・・・・・・スイッチ。1 to 3 show an embodiment of the present invention. FIG. 1 shows a circuit for controlling the light irradiated to a visitor, FIG. 2 is an overall explanatory diagram of the apparatus, and FIG. 3 shows a control circuit for reducing the light incident on the imaging section. 1...Slave unit, 2...Push button, 3.
4. 5... Light emitting section, 6... Imaging section,
7... Base unit, 8... First light receiving section, 9...
...Monitor screen, 10... Song second light receiving section, 11
...Central part, 12, 14...Telephone receiver,
13.15...Telephone, 16...Monitor switch, 17...Switch.
Claims (1)
て、撮像装置に投影されるモニター視野内の一部であっ
て来訪者によって背景光が遮光される部分に視野角を有
する受光素子と、来訪者の有無による前記受光素子の出
力差が基準値以上のとき反転するコンパレータと、この
コンパレータの反転出力で始動し来訪者の退出による前
記受光素子の変化によってリセットされる二安定回路゛
と、この二安定回路の作動中であって来訪者による呼
出信号に応動して閉成するスイッチの閉成中は電源に接
続される発光素子とを備え、逆光時でも来訪者を視認で
きることを特徴としたインターホン装置。 。In an intercom device that monitors via an imaging device, there is a light-receiving element that has a viewing angle in a part of the monitor field of view projected on the imaging device and where background light is blocked by a visitor, and a light-receiving element that has a viewing angle in a part where background light is blocked by a visitor. a comparator that is inverted when the output difference of the light receiving elements is equal to or greater than a reference value; a bistable circuit that is started by the inverted output of the comparator and reset by a change in the light receiving element due to the exit of the visitor; An intercom device characterized in that it is equipped with a light emitting element that is connected to a power source while a switch that is in operation and is closed in response to a call signal from a visitor is closed, and that a visitor can be visually recognized even in backlight. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984065187U JPS60177545U (en) | 1984-05-02 | 1984-05-02 | intercom device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984065187U JPS60177545U (en) | 1984-05-02 | 1984-05-02 | intercom device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60177545U true JPS60177545U (en) | 1985-11-26 |
| JPH04621Y2 JPH04621Y2 (en) | 1992-01-09 |
Family
ID=30596959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984065187U Granted JPS60177545U (en) | 1984-05-02 | 1984-05-02 | intercom device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455990A (en) * | 1987-08-26 | 1989-03-02 | Matsushita Electric Works Ltd | Interphone system with monitor television |
-
1984
- 1984-05-02 JP JP1984065187U patent/JPS60177545U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455990A (en) * | 1987-08-26 | 1989-03-02 | Matsushita Electric Works Ltd | Interphone system with monitor television |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04621Y2 (en) | 1992-01-09 |
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