Patent ID: 7346094

Claim:
A method for transmitting data and additional information within a wire based communication system, said method comprising the steps of: using a transmitter combined with a spread spectrum receiver to transmit said data to a receiver combined with a spread spectrum transmitter over a first frequency band of a wired medium; spreading said additional information over a second frequency band of said wired medium so that said second frequency band at least partially overlaps said first frequency band; and using the spread spectrum transmitter to transmit said spreaded additional information to the spread spectrum receiver simultaneously with said data, wherein: said wired medium carries said data in one direction and carries said spreaded additional information in an opposite direction; and the spread spectrum receiver includes: a signal tab adapted to receive said spreaded additional information and the signal tab includes termination resistors adapted to receive common mode current representing said spreaded additional information from said wired medium and a correlator adapted to despread said spreaded additional information, the correlator including: a despreading mixer electrically coupled to a local code copy circuitry and adapted to despread said spreaded additional information, and integrate and dump circuitry adapted to convert said despreaded additional information to phase information and despreaded, encoded additional information.