US 6,983,031 B2 | ||
Frame synchronization in data communication system | ||
Timothy John Wheatley, Crowthorne (United Kingdom) | ||
Assigned to Agere Systems Inc., Allentown, Pa. (US) | ||
Filed on Sep. 05, 2001, as Appl. No. 9/946,719. | ||
Claims priority of application No. 00308080 (EP), filed on Sep. 18, 2000. | ||
Prior Publication US 2002/0075979 A1, Jun. 20, 2002 | ||
Int. Cl. H04L 7/00 (2006.01) |
U.S. Cl. 375—368 | 18 Claims |
1. A data communication system comprising a transmitter and receiver, the transmitter being arranged to prepare and transmit data as a sequence of frames, each frame comprising a synchronisation section and a payload section of data, and the transmitter including means for including in the synchronisation section of each frame a part of a predetermined code sequence comprising four bits, wherein successive frames contain other parts of the predetermined code sequence and the receiver including means for storing a predetermined number of received frames, and means for assessing the stored data within the frames in order to locate and recognise the predetermined code sequence parts, whereby to synchronise to the received frames. |