Transmission of high rate isochronous data in MPEG-2 data streams
US5598415A · kind A · utility
119Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Aug 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4348
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scheme is provided for communicating high rate isochronous data in an MPEG-2 type transport stream in a robust manner. The syntax for the data bitstream also provides for the communication of a data clock increment value to a decoder. The increment value enables a simplified and cost effective approach to the direct digital synthesis of a clock frequency necessary to recover data from the packetized data stream at the decoder. The time resolution for presenting isochronous data presentation units at the decoder is increased by providing a presentation time stamp (PTS) extension to supplement a standard MPEG-2 PTS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.