A method and means for maintaining continuous bit synchronization of data transmitted from a remote unit through a base unit to a landline unit is disclosed. An input data stream at a first bit rate, such as digitized or encrypted speech, is interleaved with a plurality of signalling words, and transmitted...http://www.google.es/patents/US4803726?utm_source=gb-gplus-sharePatente US4803726 - Bit synchronization method for a digital radio telephone system
Bit synchronization method for a digital radio telephone system