Apparatus and method for detecting vertical blanking interval
US8643780B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2006 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Nov 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/035
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for detecting vertical blanking interval (VBI) is disclosed. The apparatus can automatically detect the presence and type of a VBI signal, so as to perform corresponding VBI decoding subsequently. The apparatus includes a digitizing module and a detecting module. The digitizing module converts a television signal into a digital signal according to a level value. The detecting module detects if the digital signal includes a VBI signal, and if yes, further determines the type of the VBI signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.