Method for universal messaging and multiplexing of video, audio, and data streams
US6172988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for supplying arbitrary types of information in a digital signal conformant to the structures defined in ISO standard ISO/IEC 13818-1, known generally as MPEG2 Systems. The method extends Program Stream and Transport Stream structures by application of principles developed for standardization of bidirectional data communications protocols to define a universal messaging syntax applicable to all types of information, including Internet data streams, VBI data streams, other types of data streams, as well as MPEG2 video, audio, and control; to define a multiplexing structure that is independent of the details of the MPEG2 signal structure; and to define a scheme for addressing such enhanced MPEG2 signals, or portions of signals, to individual decoders or to groups of decoders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.