Digital data transmitting apparatus.

摘要

An apparatus for transmitting digital data inclusive of information data and synchronous data having a plural-byte code inserted per predetermined byte length of the information data. The apparatus comprises a sync code position predictive means (41, 45) for predicting the top position of the sync code by converting the transmission digital data into parallel data at a desired timing and then comparing each byte of the parallel data with a desired byte of the sync code; and a sync code detection means (44, 46) for detecting the sync code in the transmission digital data by first extracting the parallel data by a length corresponding to the plurality of bytes of the sync code in accordance with the result of such prediction of the sync code position predictive means (41, 45), and then comparing the extracted parallel data with the sync code.