Method and system for synchronized mapping of data packets in an ATSC data stream
US8774069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2009 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Nov 1, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Mapping data packets of a first data stream into data fields of a second data stream at several transmitters is provided by generating a first data stream with first data packets containing data associated with stationary receivers and second data packets containing data associated with mobile receivers in a head-end, where second data packets at the start of a group of consecutively transmitted second data packets contain placeholders into which signaling information is filled. A first data stream is transmitted from the head-end to each transmitter. Each transmitter extracts signaling information from the second data packets indicating in which data slot and in which data sub-frame of a received data frame the second data packet is transferred. Each transmitter inserts synchronization data in a specific data packet in each data slot containing second data packets. The first and second data packets are mapped consecutively into the second data stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.