Patent ID: 7634284

Claim:
A method for enhancing signal-to-noise ratio associated with a transmitted digital communication signal without affecting its power flux density, the method comprising the following steps performed in a transmitter: selecting a reduced information data rate that is a fraction of a full data rate R, wherein the reduced information data rate is ¼ of the full data rate R; randomizing the reduced data rate information signals to produce an encoded data stream at the full data rate R; and transmitting the encoded data stream; wherein the reduced information data rate results in an enhanced signal- to-noise ratio, per bit of information, that is increased by a factor of four due to reduction in the information data rate increasing the energy per bit, and wherein transmittal of the encoded data stream at the full data rate ensures that power flux density will not be significantly changed; wherein the information data rate is decreased without any corresponding increase in the power flux density, the information data rate being reduced to a selected fraction, ¼, of the full data rate R resulting in an encoded sequence at the full rate R, containing information data at the reduced R/4 rate; and wherein the effect of transmitting at the reduced information data rate, R/4, is that the signal to noise ratio is increased by a factor of four because reduction in the information data rate increases the energy per bit without change in power flux density because the randomized combined data stream is still being transmitted at the full data rate.