Patent ID: 7676011
Filing Date: 2010-03-09
Classification: H03L,H04L

Abstract:
1. A data recovery apparatus for receiving at least an original clock and at least an original data stream provided by a transmitter to output at least one recovery data, wherein the original data stream comprises N steps in a period T of the original clock, N is an integer larger than 0, and the data recovery apparatus comprises: a sampling unit for sampling the original data stream according to the original clock, wherein corresponding data of the original data stream are sampled for three times with T/(4N) sample period in each step; and a processing unit electrically connected to the sampling unit, for receiving and comparing the sampled results output from the sampling unit to obtain a compared result of whether the original data stream leads or lags the original data, and recovering the sampled results to be the recovery data according to the compared results, wherein the sampling unit comprises: