Apparatus and method for the synchronization of data in a bit stream
US5588030A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0608
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In the system of the present invention, the system includes a pre-synchronizer to eliminate the need for examining every possible substring preceding the EOP (end of preamble) mark in order to detect the EOP. For the case where autocorrelation techniques are used to provide error synchronization error tolerance, this results in a much shorter EOP, since it is possible to find shorter EOPs which do not falsely synchronize prior to the arrival of the true EOP. In particular, the preamble is utilized to perform pre-synchronization. Once pre-synchronization has been achieved, the search for the EOP can be focused on a subset of all possible substrings as opposed to prior techniques which looked at all possible substrings. The resultant system solves the problem with less logic and more error tolerance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.