Method and apparatus for fast burst mode data recovery

Details Method and apparatus for fast burst mode data recovery Method and apparatus for fast burst mode data recovery

H - Electricity

04

L

H04L 1/22 (2006.01) H04L 7/033 (2006.01)

Patent

CA 2321368

A method of data recovery includes receiving a data stream of data bits and splitting the data stream to N identical input data streams where N is an integer greater than 1. Each of the N input data streams is delayed with respect to the preceding one by a bit time divided by N. Each of the N delayed input data streams is then sampled using a local clock to provide N samples which form an N-bit sample code per clock period. At least two successive sample codes are decoded to select one of the N delayed input data streams most aligned with the local clock. The selected data stream is thereby retimed to the local clock for synchronous processing of the data stream payload. The local system clock is held constant in the presence of multiple asynchronous data streams for improved robustness in overall system performance.

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