Data encoding method and apparatus for outputting encoded data at a designated time
US6088063A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/242
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There occurs an output timing lag between audio and video, for example, in case of building a system. Excessive frame skipping, etc. occurs. Prior to comparing a PTS and an SCR of MPEG within an apparatus, an offset value is added to the value of PTS. A minus offset value is used for a fast decode process. Offset values are written into an audio offset value register etc. by a host CPU. A value obtained by adding PTS and an offset value and an internal clock SSC depending on an SCR are compared by an adder-subtracter. If comparison shows the decode process is still fast, a decision controller instructs, for example, display of the same frame twice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.