Sync signal detecting device
US4747116A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Mar 21, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/041
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A sync signal detecting device includes a circuit for generating a sync signal pattern corresponding to an expected sync signal pattern contained in a digital signal, a circuit for comparing the digital signal with the sync signal pattern to detect a sync signal in the digital signal, a circuit for detecting errors in the digital signal, and a counter for counting the errors thus detected. A sync detection signal is outputted when, where no error is detected, the sync pattern is detected, and when, where errors are detected, the number of errors detected is a predetermined value or less and the part of the digital signal which is not coincident with the sync signal pattern is the part where the errors have been detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.