Video encoder with latency control
US7936819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2005 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2300/538
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method of transmitting a frame of video, a number of bits corresponding to a frame of video is determined. A length of time needed to transmit the number of bits is determined and is compared with a length of time corresponding to a frame period. A frame period may correspond to an inverse of an average frame update rate. If the length of time exceeds the length of time corresponding to the frame period, one or more P-frames including a plurality of empty macro-blocks may be transmitted and the frame of video may then be transmitted over period of time exceeding one frame period. In some cases, the transmission of the frame of video may equal two or more frame periods. The transmitting may include transmitting an instruction for setting a latency in a client device to less than 50 ms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.