Computer system with motion-triggered alarm procedure
US6359560B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computer system includes a video input device that generates video data representing a field of view in front of the video input device. The computer system further includes a buffer and a video processing module. The buffer is configured to record a video clip of the field of view in front of the video input device. The video processing module is connected to the buffer and the video input device. The video processing module includes a video capture device to encode the video data, and a signal processing module. The signal processing module processes the encoded video data in order to calculate an average value of the video data indicative of motion within the field of view in front of the video input device. The signal processing module generates an alarm if the average value is above a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.