Method and apparatus for using the video blanking period for the maintenance of a modem that is used for wireless transmission of video
US8365238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2007 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jan 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The vertical blanking period is an idle period in video transmission that was originally intended for allowing the trace back of an electron beam to its point of origin. When sending the video signal over a wireless channel, the wireless channel may remain free of transmission of data during this period. However, in wireless transmission of a video signal in general, and in the transmission of an essentially uncompressed video signal in particular, there is a need to use all the bandwidth available, especially when transmitting a high-definition video signal. Therefore, a method is taught for using the vertical blanking period of a video signal for modem maintenance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.