Superconductor analog to digital converter

A method of signal processing, comprising:

• receiving an analog signal;
• selectively producing a stream of quantized pulses which represent an amplitude of the received analog signal delayed with respect to the analog signal with a first electronic circuit;
• controlling a time delay of the received analog signal with respect to the stream of quantized pulses, and producing a delayed received analog signal;
• selectively producing an analog residue signal representing a difference between an amplitude of the delayed received analog signal and the represented amplitude of the received analog signal with a second electronic circuit;
• selectively producing a quantized representation of the analog residue signal with a third electronic circuit;
• and
• receiving the stream of quantized pulses and the quantized representation of the analog residue signal with a digital signal processor, and generating a signal representing the amplitude of the received analog signal with an accuracy greater than the stream of quantized pulses.

A method of signal processing, comprising:

• receiving an analog signal;
• selectively producing a stream of quantized pulses which represent a waveform of the received analog signal controllably delayed in time with respect to the analog signal;
• controlling a time delay of the received analog signal with respect to the stream of quantized pulses, and producing a delayed received analog signal;
• selectively producing an analog residue signal representing a quantitative difference between a waveform of the delayed received analog signal and the represented waveform of the received analog signal;
• selectively producing a quantized representation of the analog residue signal;
• and
• receiving the stream of quantized pulses and the quantized representation of the analog residue signal with a digital signal processor, and generating a signal representing the waveform of the received analog signal with an accuracy greater than the stream of quantized pulses.