Method and apparatus for multi-modulation frame synchronization in a digital communication system
US7616724B2 · kind B2 · utility
0Cited by
15References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0614
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for frame synchronization in digital communication systems using multiple modulation formats perform a search for a differential frame alignment sequence (FAS) to frame-align the received digital stream and determine the polarity of the stream. Embodiments of the invention are compatible with Differential Phase Shift Keying (DPSK), Duobinary Signaling (DBS), and ON/OFF Keying (OOK) modulation formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.