Surveillance camera apparatus, remote surveillance apparatus and remote surveillance system having the surveillance camera apparatus and the remote surveillance apparatus
US6456321B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jun 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video data indicating a scene of a surveillance area is produced by a surveillance camera and is compressed to high-compressed video data and low-compressed video data. The low-compressed video data having a large data volume is stored in a storing unit, and the high-compressed video data having a small data volume is transmitted to a surveillance apparatus through a communication line at high speed. Also, in cases where the occurrence of an unusual condition is detected by a detector, an unusual condition detecting signal is transmitted to the surveillance apparatus. In the surveillance apparatus, the high-compressed video data is expanded, and a low-definition scene image of the surveillance area is displayed as a real time image. When the unusual condition detecting signal is received, the signal is displayed, and a watchman can notice the occurrence of the unusual condition. Because the watchman desires to view a scene image at high definition, the low-compressed video data stored in the storing unit is transmitted to the surveillance apparatus in response to a watchman's request, and a high-definition scene image of the surveillance area is displayed as a past-time image. Ther…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.