A method and apparatus for frame synchronization in digital communication systems using multiple modulation formats, including the Differential Phase Shift Keying (DPSK), Duobinary Signaling (DBS), and ON/OFF Keying (OOK) modulation formats, perform a search for both a frame alignment sequence (FAS)...http://www.google.com/patents/US20060067368?utm_source=gb-gplus-sharePatent US20060067368 - Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats
