Efficient header acquisition
US7660372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2005 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Aug 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an integrated satellite receiver, improved header acquisition techniques are described for quickly locating a header symbol sequence in a data stream substantially implemented on a single CMOS integrated circuit. To identify the location of a header symbol sequence in a data stream, a selected header acquisition technique employs a real time correlator followed by an accumulator. Once accumulation over a predetermined number of frames is finished, the largest or maximum value among the accumulated correlator values is identified. If the maximum value exceeds a threshold, it will be declared as a peak and the address associated is the peak timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.