Patent ID: 7359391

Claim:
A network interface circuit for transmitting signals to different nodes of a network, the network interface circuit comprising: a MAC circuit; a first scrambler coupled to the MAC circuit for generating a first transmission signal by executing a logic operation with a first signal and a first scrambling code, the first scrambler comprising a first random number generator for executing a second logic operation with a first seed to generate the first scrambling code; a second scrambler coupled to the MAC circuit for generating a second transmission signal by executing the logical operation with a second signal and a second scrambling code, the second scrambler comprising a second random number generator for executing the second logic operation with a second seed to generate the second scrambling code, wherein the first seed and the second seed are different elements of a same set of seeds, each element of the set of seeds being utilized by each of the first and the second random number generators in turn; a first transmission port coupled to the first scrambler for transmitting only the first transmission signal to a network node; and a second transmission port coupled to the second scrambler for transmitting only the second transmission signal to another network node.