Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 13, 2009
Patent Application Number
11678825
Date Filed
February 26, 2007
Patent Primary Examiner
Patent abstract
Control symbols taking the form {k1-k2-k2-k1} are inserted in a serial stream including m bit data words. k1 and k2 are each predefined m bit control words differing from the m bit data words. The Hamming distance between k1 and k2 is at least 2. Such control symbols may be robustly detected in the presence of a one bit error in the symbol, or a data word immediately preceding or following the symbol. The m bit words may be 8B/10B encoded data, or defined control words. The control symbols may be used for data delineation, stream synchronization, transmitter/receiver synchronization or for other control signalling.
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