Patent ID: 9147463
Filing Date: 2015-09-29
Classification: G11C

Abstract:
1. A method for data acquisition in a memory system, comprising: receiving a data signal and a strobe signal; oversampling the data signal and the strobe signal with a multiphase clock having n phases to generate a series of data signals and a series of strobe signals representing a first data series and a first strobe series, respectively; generating a second strobe series by edge detection of the first strobe series followed by retiming of the edge detected series; generating a third strobe series by edge adjustment of the second strobe series, wherein the edge adjustment ensures that there are no overlapping edges among the signals of the third strobe series; generating a sample selected series by linear shifting each signal of the third strobe series by n/2; generating a second data series by retiming the first data series; generating a third data series by sample adjustment of the second data series, wherein the sample adjustment ensures that the third data series is in synchronization with a sampling window of the sample selected series; and determining a final data signal by multiplexing the third data series with the sample selected series.