SYNCHRONIZING FLAG EXTRACTION METHOD, MULTIPLEX TRANSMISSION METHOD, AND BYTE SYNCHRONIZATION TRANSMISSION METHOD

摘要

PROBLEM TO BE SOLVED: To reduce the load of processing and to find a pattern being the same as that of a synchronizing flag at the outside of the synchronizing flag in data to suppress the pattern from being erroneously recognized as the synchronizing flag by executing a collation with a synchronizing flag pattern for every byte. ;SOLUTION: A first synchronizing flat is detected by a bit unit flat detecting means 101. The bit unit flag detecting means 101 collates the four paste bytes with the synchronizing flag pattern while shifting a received bit stream by one bit so as to detect the synchronizing flag. When the interval of the N- number (N≥1) continuous past synchronizing flags is an integer byte number, a byte synchronization processing means 102 establishes byte synchronization, and, after that, the synchronizing flag after that is detected by a byte unit flag detecting means 103. The byte unit flag detecting means 103 collates the four paste bytes with the synchronizing flag pattern whenever the byte synchronization processing means 102 outputs one byte so as to detect the synchronizing flag.;COPYRIGHT: (C)1999,JPO