APPARATUS FOR DECODING A SERIAL DATASTREAM OF CHANNEL WORDS INTO A DATASTREAM OF INFORMATION WORDS

摘要

There is provided an apparatus for decoding a serial data stream composed of a plurality of channel words into a data stream composed of a plurality of information words. The apparatus includes an input terminal 10 for receiving a serial data stream composed of a plurality of channel words, a serial-to-parallel converter (not shown) for serial-to-parallel converting the serial data stream into a parallel data stream composed of a plurality of n-(16). In addition, there is a clock signal generator 14 for deriving a first clock signal having a specific frequency from a serial data stream composed of a plurality of channel words. There is a divider 18 for dividing the frequency of the clock signal generated by the generator by the factor of n to obtain a second clock signal having a reduced frequency. In addition, there is a dynamic gear detecting section 24 for detecting a plurality of dynamic gears existing in the serial data stream constituted by a plurality of channel words.