A house system for the transmission of information messages which are encoded in the form of digital signals wherein a code is selected which facilitates the testing of each information bit, including a central station and a series of substations at which the information messages of the central station...http://www.google.fr/patents/US4528667?utm_source=gb-gplus-shareBrevet US4528667 - System for the transmission of information messages
System for the transmission of information messages
