System for encoding data presented with a first coding device and for decoding encoded data with a second coding device, and coding device for use in the system
US5278906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Dec 11, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a system for de-/encoding data using (de)coding devices at either end of a transmission channel, the data sometimes comprise additional synchronisation information which is used to reduce the effect of faults in the transmission channel. If this synchronisation information is not already present, it is impossible in certain cases to add such information. The invention provides a system which, regardless of the presence of additional synchronisation information, is able to reduce the effect of faults. For this purpose, each (de)coding device is provided with means for comparing sequences of encoded data with at least one predetermined code word and for setting the associated coding device to a reset state in the event of equality. Because the predetermined code word repeats statistically in the encoded data, a fault adversely affects the decoding for not more than one time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.