Precision timing pulse width communications
Systems and methods are described for pulse communications using precision timing. A method includes digitally pulse coding a data stream; and modulating a carrier signal using the digitally pulse coded data stream.
1. An apparatus, comprising:
a buffer;
a pulse generator coupled to the buffer;
a modulator communicatively coupled to the pulse generator;
an oscillator coupled to the modulator, characterized in that the buffer and the pulse generator compose a digital circuit; and
a sub clock cycle pulse generator coupled between the pulse generator and the modulator; and a source of a constant coupled to the sub clock cycle pulse generator.
2. An apparatus, comprising:
a buffer;
a pulse generator coupled to the buffer;
a modulator communicatively coupled to the pulse generator; and
an oscillator coupled to the modulator, characterized in that the buffer and the pulse generator compose a digital circuit,
wherein the pulse generator provides sub clock cycle precision with regard to a clock that is controlling the digital pulse generator.
3. The apparatus of claim 2 , wherein the modulator includes a surface-acoustic-wave modulator.
4. The apparatus of claim 2 , wherein said modulator includes an acousto-optic modulator that is coupled to a piezoelectric crystal.
5. The apparatus of claim 2 , further comprising a sub clock cycle pulse generator coupled between the pulse generator and the modulator; and a source of a constant coupled to the sub clock cycle pulse generator.