Patent ID: 7313164

Claim:
A method for effecting PN code sequence changes, the method comprising: determining an interceptor threat level; determining a first transmitter PN code sequence associated with said interceptor threat level, wherein determining the first transmitter PN code sequence associated with said interceptor threat level further comprises: changing the first transmitter PN code sequence to a second transmitter PN code sequence; encoding a second transmitter PN signal with the second transmitter PN code sequence; transmitting the second transmitter PN encoded signal, wherein transmitting the second transmitter PN encoded signal further comprises transmitting the second transmitter PN encoded signal during a second time frame; encoding a first transmitter PN signal with the first transmitter PN code sequence; transmitting the first transmitter PN encoded signal, wherein transmitting the first transmitter PN encoded signal further comprises transmitting the first transmitter PN encoded signal during a first transmitter time frame; receiving the first transmitter PN encoded signal, wherein receiving the first transmitter PN encoded signal further comprises receiving the first transmitter PN encoded signal during a first receiver time frame; and PN decoding the first transmitter PN encoded signal.