Ultra efficient modulation and transceivers
View Patent ↗Ultra Efficient Modulation-Demodulation (modem) and Transmitters-Receivers (transceivers) for high spectral efficient signal generation and processing methods and implementations. Embodiments include Clock Modulated (CM) and Shaped Clocked (SC) transceivers designated as Feher Keying (FK), Feher Quadrature Shift Keying (FQPSK) and Feher Quadrature Modulation (FQAM). In the FK modulator, clock converted and clock shaped signals are processed and generated. These are based on the input data signal patterns.
1. A clock modulated signaling system comprising:
an input data interface means to provide control signal generation and selection means of shaped clock signals;
a quadrature modulator for quadrature modulating the shaped clock baseband signal;
an interface means to provide signal processing means for modulating the clock modulated baseband signal by means of a cross-correlated quadrature modulator system;
an output amplifier means to connect the cross-correlated quadrature modulated signal to the demodulator;
demodulation means to demodulate the received quadrature modulated signal; and
signal processor means to decode and regenerate the shaped clock signals.
2. A method of signaling using clock modulated signals, said method comprising:
selecting at least one shaped clock signal;
cross-correlating and quadrature modulating said selected at least one shaped clock signal;
amplifying said cross-correlated quadrature modulated signal;
transmitting said amplified cross-correlated quadrature modulated signal;
receiving said transmitted amplified cross-correlated quadrature modulated signal;
demodulating said received signal; and
decoding said received demodulated signal and regenerating said clock signal.