A secure method for transmitting data on an isochronous network in which data is spread in successive frames in a manner known to the sender and receiver but unknown to other nodes on the network. In one embodiment, some or all bits which comprise a byte are transmitted in different channels (i.e. time...http://www.google.de/patents/US5970095?utm_source=gb-gplus-sharePatent US5970095 - Secure data transmission on a TDM isochronous network