ELECTRONIC INTEGRATED CIRCUITS; APPARATUS FOR SIGNAL DETECTION IN ULTRA WIDE-BAND COMMUNICATIONS, NAMELY ELECTRONICS CIRCUITRY AND ELECTRONICS INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY, ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY TO RECOVER DATA FROM PULSES, DEMODULATION CIRCUITRY AND PULSE DETECTION CIRCUITRY; ELECTRONIC CIRCUITRY HAVING NONLINEAR DYNAMIC CHARACTERISTICS, NAMELY, DECODERS FOR GENERATING OUTPUT PULSES OR OSCILLATIONS AND OSCILLATORY CIRCUITS; RECEIVER CIRCUITS; TUNNEL DIODES; MODULATORS COMPRISING OF DIGITAL COMMUNICATIONS MODULATION AND DEMODULATION CIRCUITRY FOR USE IN THE FIELD OF DIGITAL COMMUNICATIONS; PULSE MODULATION SCHEMES COMPRISED OF ELECTRONICS CIRCUITRY AND ELECTRONICS INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY; PULSE WIDTH MODULATION SCHEMES COMPRISED OF ELECTRONICS CIRCUITRY AND ELECTRONICS INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY; APPARATUS FOR GENERATING PULSES FROM PHASE SHIFT KEYING ANALOG WAVEFORMS, NAMELY ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY; PULSE DECODERS;APPARATUS FOR DELTA MODULATOR AND SIGMA DELTA MODULATOR,NAMELY ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY; OSCILLATORS;APPARATUS TO RECOVER DATA FROM PULSES, NAMELY ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY TO RECOVER DATA FROM PULSES, DEMODULATION CIRCUITRY AND PULSE DETECTION CIRCUITRY; CIRCUITRY WITH RESISTIVE INPUT IMPEDANCE FOR GENERATING PULSES FROM ANALOG WAVEFORMS; DECODER FOR GENERATING OUTPUT PULSES OR OSCILLATIONS; RESISTERS;APPARATUS FOR GENERATING PULSES FROM ANALOG WAVEFORMS,NAMELY ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN DIGITAL COMMUNICATION MODULATION CIRCUITRY AND DIGITAL COMMUNICATION DEMODULATION CIRCUITRY; APPARATUS FOR PULSE DECODING COMMUNICATION SYSTEMS USING MULTIPLE RECEIVERS, NAMELY A FEW SETS OF SIMILAR ELECTRONIC CIRCUITRY AND ELECTRONIC INTEGRATED CIRCUITRY FOR GENERATING PULSES FOR USE IN A DIGITAL COMMUNICATION SYSTEM FOR MODULATION AND DEMODULATION; RECEIVERS