Patent ID: 6212660
Filing Date: 2001-04-03
Classification: H04L

Abstract:
Method for identification of the position of data packets (P1, P2, . . . ) in a serial data stream and each data packet having a unique position in the serial data stream, check data in a check field and a check sum (CRC) which is formed using the check data, said method comprising:passing the received data stream in serial form through at least one comparison unit (9; 22.sub.1, . . . , 22.sub.72) which forms a new check sum (CRC') with each received signal to be newly added and compares this new check sum (CRC') with data which are regarded as the associated received check sum (CRC);determining the position of the data packet in the serial data stream from the comparison of the new check sum (CRC') and the associated received check sum (CRC); andeliminating, during the comparison, the influence of all data which are not associated with the check data and the check sum (CRC).