Synchronous oscillator demodulator system

Claim 1

An electronic circuit apparatus for generating a waveform to drive a transformer primary circuit and to signal the time at which a prearranged point on said waveform occurs for measuring the output amplitude of the transformer secondary circuit at that point comprising: a means for dividing up time into uniform equal components of a frequency adequate to provide a plurality of segments within a prescribed time cycle, a means connected to said dividing means to receive said segments for accumulating a predefined number of said segments which make up one said waveform and for assigning an address to each side segment, a first electronic operating device connected to receive said addressed segments being a read only memory set to associate an output being data defining that amplitude of a waveform with each set of said addressed segments, and a second electronic operating device also connected to receive said addressed segments from said receiving means for identifying preselected addressed segments for signalling a point in time on each waveform cycle for use to initiate the monitoring of a respective output of said transformer secondary circuit, said point signal from said second electronic operating device being transmitted to a sample and hold circuit connected to said transformer secondary circuit for measuring the transformer secondary output held by said circuit at that respective point in time.

Claim 11

A method for generating a waveform for a transformer and for specifying selected points at which to read the amplitude of an induced waveform in the secondary of said transformer including the following steps: providing a means to segment time with a frequency sufficient to have at least a thousand segments per second, providing a means to accumulate, receive and positionally locate a predefined number of said segments for each waveform cycle, associating an output being waveform amplitude data for each of said located segments to define a waveform with respect to the time for each waveform cycle, releasing amplitude data associated with one or more of said segments in a given cycle for specifying particularly at least a point at which the amplitude of the generated waveform is monitored for use to control an output from the transformer secondary, and transmitting said released amplitude data to a sample and hold circuit connected to said transformer secondary circuit for measuring the transformer secondary output held by said circuit at that respective point.

Claim 12

A method for generating a waveform for a transformer and for specifying selected points at which to read the amplitude of an induced waveform in the secondary of said transformer including the following steps: providing a means to segment time with a frequency sufficient to have at least a thousand segments per second, providing a means to accumulate, receive and positionally locate a predefined number of said segments for each waveform cycle, associating an output being waveform amplitude data for each of said located segments to define a waveform with respect to the time for each waveform cycle, releasing amplitude data associated with one or more of said segments in a given cycle for specifying particularly at least a point at which the amplitude of the generated waveform is monitored for use to control an output from the transformer secondary, and transmitting said released amplitude data to a sample and hold circuit connected to said transformer secondary circuit for measuring the transformer secondary output held by said circuit at that respective point.