Patent ID: 9042486
Filing Date: 2015-05-26
Classification: H03C,H04B,H04L

Abstract:
1. A method of minimizing the bandwidth needed to transmit signals using angle modulation, the method comprising: providing a modulating input signal; phase modulating the modulating input signal using first phase modulation circuitry; phase shifting the modulating input signal by 90 degrees using first phase shift circuitry; phase modulating the 90 degree phase shifted modulating input signal using second phase modulation circuitry; phase shifting the modulating input signal by 180 degrees using second phase shift circuitry; phase modulating the 180 degree phase shifted modulating input signal using third phase modulation circuitry; phase shifting the modulating input signal by 270 degrees using third phase shift circuitry; phase modulating the 270 degree phase shifted modulating input signal using fourth phase modulation circuitry; and combining outputs of the first, second, third, and fourth phase modulation circuitry to thereby provide for phasing out one or more sideband pairs from the modulating input signal.