Patent ID: 6734813
Filing Date: 2004-05-11
Classification: G06F,H04L

Abstract:
A serial data receiving device comprising:over-sampling means for receiving an input serial bit string composed of a plurality of input binary digits expressing a referential word and a plurality of input binary digits expressing a string of desired data, and performing a sampling operation N-th times (N denotes a positive integral number higher than one) for each input binary digit of the input serial bit string to produce a plurality of over-sampled binary digits corresponding to N groups of sampling operations ranging from a first group of sampling operations to an N-th group of sampling operations; serial-parallel converting means for converting an over-sampling bit string of the over-sampled binary digits produced by the over-sampling means to a plurality of parallel bit strings respectively corresponding to one input binary digit of the input serial bit string; data dividing means for dividing the N over-sampled binary digits of each parallel bit string produced by the serial-parallel converting means to N groups to produce N divided bit strings corresponding to the N groups of sampling operations; data retrieving means for searching each of the N divided bit strings produced by the data dividing means for the referential word, detecting one divided bit string or a plurality of divided bit strings having the referential word, outputting a group specified result indicating one group or a plurality of groups corresponding to the divided bit string or the divided bit strings having the referential word, and retrieving the string of desired data from each divided bit string having the referential word; and output data selecting means for selecting a final selected group from the group or the groups of the group specified result output from the data retrieving means, and outputting the string of desired data, which is retrieved by the data retrieving means and corresponds to the final selected group, as an output bit string.