Time domain radio transmission system

A time domain radio transmission system comprising:

• antenna means including at least one antenna for coupling signals between said antenna dna a propogation medium;
• a radio transmitter comprising:
• a source of intelligence signals,
• first signal generating means responsive to said source of intelligence signals for generating repetitive, time-spaced signals which vary from a constant pattern as a function of said intelligence signals and by a function of a selected pattern,
• a power source, and
• power switching means coupled to said antenna and said power source and responsive to said time-spaced signals for switching between states of power applied to said antenna and not being applied to said antenna at varingly time-spaced intervals, whereby discrete switched voltage states are imposed on said antenna and transmitted as varying time separated bursts;
• a radio receiver comprising:
• receiving means coupled to said antenna means for receiving transmissions and for providing received signals,
• second signal generating means responsive to control signals for generating, repetitively, template signals, and
• signal timing means responsive to said received signals and said template signals for generating as said control signals, signals corresponding in time to the pattern of the output of said first signal generating means absent an applied intelligence signal;
• and
• demodulation means comprising:
• multiplying means responsive to said template signals and said received signals for providing product signals.
• first signal means including integration means responsive to said product signals for providing integral signals which are a function of the integral of said product signals, and
• second signal means responsive to said integral signals for reproducing said intelligence signals.

A time domain system for receiving time domain signal transmissions transmitted by a transmitter comprising:

• an antenna for coupling signals between said antenna and its environment;
• signal means for generating reoccurring signal units, wherein each signal unit is comprised of at least one pulse signal, a source of intelligence signals, modulation means responsive to said signal generating means and said source of intelligence signals for providing, as a modulated output, a train of signals wherein at least a discrete edge region of last-named signals are varied in time as a function of said intelligence signals, a D.C. power source, and power switching means coupled to said antenna and said power source having a control input responsive to a said modulated output for abruptly switching between the states of power applied to said antenna and not being applied to said antenna, whereby discrete switched effect signals are transmitted as transmitted signals;
• said radio receiver comprising:
• an antenna, and
• receiving means coupled to said antenna for receiving time domain transmissions and for providing received signals;
• signal generating means responsive to control signals for generating, repetitively, template signals generally corresponding in time to an average time of occurrence of a signal portion of a said received signal from said transmitted signal;
• demodulation means comprising:
• multiplying means responsive to said template signals and said received signals for providing product signals,
• signal means including integration means responsive to said product signals for providing an integral signal which is a function of the integral of said product signal, and
• means responsive to said integral signal for reproducing said intelligence signals.

A time domain radio transmitter for transmitting signals to a radio receiver wherein the radio receiver comprises an antenna, receiving means coupled to said antenna means for receiving transmissions and for providing received signals, signal means responsive to a control signal for generating, repetitively, template signals generally corresponding in time to an average time of occurrence of a signal portion of a said received signal from a transmitted signal, signal timing means responsive to said received signals and said template signals for generating a said control signal, multiplying means responsive to said template signals and said received signals for providing product signals, signal means including integration means responsive to said product signals for providing an integral signal which is a function of the integral of said product signal, and means responsive to said integral signal for reproducing said intelligence signals, said transmitter comprising:

• an antenna,
• a source of intelligence signals,
• signal generating means responsive to said source of intelligence signals for generating repetitive, time-spaced signals which vary from a constant pattern as a function of said intelligence signals and by a function of a selected pattern,
• a power source, and
• power switching means coupled to said antenna and said power source and responsive to said time spaced signals for abruptly switching between states of power applied to said antenna and not being applied to said antenna at varyingly time-spaced intervals, whereby discrete switched voltage states are imposed on said antenna and transmitted as varying time separated signals.