Reception synchronization circuit, receiver using the same, and digital communication system
US6493360B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1998 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Dec 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/70755
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reception synchronization circuit for receiving a unique word transmitted in a predetermined digital pattern. A detection circuit detects the reception electric field intensity as received power. A UW correlation judgment circuit detects the unique word (hereinafter referred to as “UW”) and takes a correlation between the unique word thus detected and a predetermined digital pattern. A memory stores two or more threshold values for the movement average. After the two or more threshold values and the movement average are compared with each other, the correlation is taken by the UW correlation judgment circuit when the movement average is larger than the minimum values of the two or more threshold values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.