Video-type universal motion and intrusion detection system
US3988533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1974 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Sep 30, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19689
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A motion and intrusion detection system utilizing video techniques samples fixed points during a video scan of the field of view of a camera and stores information concerning the fixed scanned points. During subsequent scans, information concerning the respective scanned points is compared with previous scans and threshold conditions are set up in order to detect an alarm condition. Further, apparatus is provided to change the field of view of the video system and in order to automatically focus and zoom in to magnify a particular portion of the field of view. Still further, means is provided to display a "map" of the alarmed areas on the screen of the television monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.