In a data multiplexing/demultiplexing apparatus including a serial-to-parallel converter, a microprocessor and a memory, a data shift register inputs data from the memory by way of the microprocessor, a correction register stores a shift correction amount on a transmission path of the data shift register....http://www.google.com/patents/US5974055?utm_source=gb-gplus-sharePatent US5974055 - Data multiplexing and demultiplexing apparatus capable of simplifying hardware without reducing flexibility