JPS644188A - Doorphone slave set with camera - Google Patents
Doorphone slave set with cameraInfo
- Publication number
- JPS644188A JPS644188A JP15942087A JP15942087A JPS644188A JP S644188 A JPS644188 A JP S644188A JP 15942087 A JP15942087 A JP 15942087A JP 15942087 A JP15942087 A JP 15942087A JP S644188 A JPS644188 A JP S644188A
- Authority
- JP
- Japan
- Prior art keywords
- camera
- pyroelectric
- hot
- wire sensors
- sensing
- 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
Landscapes
- Closed-Circuit Television Systems (AREA)
Abstract
PURPOSE:To project a figure of a visitor on an optical position in a screen without increasing the number of wires by controlling a camera to an optimum position in response to a sensing pattern of two pyroelectric hot-wire sensors. CONSTITUTION:Two pyroelectric hot-wire sensors 3(A), 3(B) are provided on a camera block. The sensing area of the pyroelectric hot-wire sensors 3(A), 3(B) is formed to be a horizontal strip shape at two positions including the lower part of the camera visual field. The camera block 2 is shaken and moved from the upper limit to the lower limit position to control the position of the camera block 2 up to the preset position in response to the sensing pattern sensing a human body by the two pyroelectric hot-wire sensors 3(A), 3(B).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15942087A JPS644188A (en) | 1987-06-25 | 1987-06-25 | Doorphone slave set with camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15942087A JPS644188A (en) | 1987-06-25 | 1987-06-25 | Doorphone slave set with camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644188A true JPS644188A (en) | 1989-01-09 |
Family
ID=15693354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15942087A Pending JPS644188A (en) | 1987-06-25 | 1987-06-25 | Doorphone slave set with camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644188A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02193252A (en) * | 1989-12-15 | 1990-07-30 | Hitachi Ltd | Document editing device |
CN104851217A (en) * | 2015-05-26 | 2015-08-19 | 苏州福利恒电子科技有限公司 | Solar voice welcome alarm circuit |
-
1987
- 1987-06-25 JP JP15942087A patent/JPS644188A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02193252A (en) * | 1989-12-15 | 1990-07-30 | Hitachi Ltd | Document editing device |
CN104851217A (en) * | 2015-05-26 | 2015-08-19 | 苏州福利恒电子科技有限公司 | Solar voice welcome alarm circuit |
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