Method for communicating block coded digital data with associated synchronization/control data
US5475716A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Jan 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3416
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Block coded digital data is communicated with associated overhead data in a data stream having a succession of coded blocks. Each block contains N symbols wherein M of the symbols comprise information to be transmitted and the remaining N-M of the symbols comprise error correcting data. The ratio M/N comprises a first information rate. The coded blocks in the data stream are divided into a succession of frames, each comprising F of the coded blocks. A frame overhead symbol is added for each of the frames, to provide the data necessary for a receiver function such as synchronization. The addition of the frame overhead symbols effectively lowers the first information rate to a second desired information rate. A plurality of X of the frames are formed into a superframe containing FX coded blocks and associated frame overhead symbols. X is chosen to provide enough n-bit frame overhead symbols to implement the desired receiver function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.