Apparatus for turning monitoring camera
US5289091A · kind A · utility
25Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Sep 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/695
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed a monitoring camera turning apparatus. An angle sensor continuously detects the turning angle of a turning shaft for turning a monitoring camera. Two detected angles are recorded as boundary limit angles in a recorder at the moment of generation of trigger signals. In a comparator, the recorded boundary limit angles are compared with the turning angle detected by the angle sensor at a moment. In accordance with results of this comparison, a switch device changes a direction of rotation of the turning shaft, thereby turning the monitoring camera in a monitoring range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.