Motion and intrusion detecting system
US4337481A · kind A · utility
42Cited by
4References
55Claims
0Family size
Inventors
Key dates
| Filing date | Jun 10, 1980 |
| Grant date | Jun 29, 1982 |
| Priority date | — |
| Expiry date | Jun 10, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19643
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A motion and intrusion detecting system wherein scanning at two different rates is carried out in order to more reliably detect fast and slow motion in a scene being viewed. Also, increased noise immunity is provided by providing a special scan which generates signals inhibiting generation of alarm indications corresponding to points at which a possible noise situation exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.