Time synchronization apparatus and method
US9161003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2012 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Nov 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8211
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a time synchronization apparatus and method for a network camera and a network video recorder (NVR) connected to the network camera. The apparatus includes: a data receiving unit receiving a data stream from the network camera, the data stream including timestamp information of the network camera; a noise determining unit determining whether time information input from the network camera is a noise based on a timestamp of the network camera contained in the timestamp information; and a setting control unit setting a timestamp of the NVR based on the determining of the noise determining unit, wherein the data stream comprises data obtained by the network camera and the timestamp information of the network camera which indicates a time when the data stream was transmitted from the network camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.