Binary phase digital decoding system

Abstract From the Canadian patent

A digital decoding system is provided which is capable of decoding binary phase modulated digital data streams of arbitrary bit length. The system decodes data signals of either polarity following or preceding a synchronizing signal. The decoder system includes a tri-state signal detector logic circuit which is strobed at a predetermined rate by a high frequency clock, and appropriate registers and associated logic circuitry for storing the resulting binary synchronizing and data signals and for ultimately recovering the digital data. The system also includes logic circuitry for recognizing the synchronizing signal and its polarity.