Data Flow Technologies, Inc.

Other

Kenneth D'Alessandro

Forrest James Brown

Ronald E Kunzel

David W Loar

Charles V Pownell

A method for detecting encoded digital data from a substantially sinusoidal waveform, the encoded digital data having one of a first value and a second value at selected phase angles &#x3b8;comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range &#x394;&#x3b8; beginning at each phase angle &#x3b8;, said first function being Y=sin &#x3b8;; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of &#x394;&#x3b8; beginning at each phase angle &#x3b8;where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of &#x394;&#x3b8; associated with each phase angle &#x3b8;where data of the second value is to be encoded, the second function being different from Y=sin &#x3b8;, the detection including deriving sync pulses from minima and maxima of the substantially sinusoidal waveform to frame data words.

Single and multiple sinewave modulation and demodulation techniques employing carrier-zero and carrier-peak data-word start and stop

A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles &#x3b8;comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range &#x394;&#x3b8; beginning at each phase angle &#x3b8;, said first function being Y=sin &#x3b8;; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of &#x394;&#x3b8; beginning at each phase angle &#x3b8;where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of &#x394;&#x3b8; associated with each phase angle &#x3b8;where data of the second value is to be encoded, the second function being different from Y=sin &#x3b8;.

Radio frequency communications systems and methods employing single and multiple sinewave modulation and demodulation techniques

Coaxial cable communications systems and apparatus employing single and multiple sinewave modulation and demodulation techniques

Satellite communications systems and methods employing single and multiple sinewave modulation and demodulation techniques

A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles &#x3b8;comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of data regions, the first function being Y=sin &#x3b8;; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the data regions having a range of &#x394;&#x3b8; beginning at each phase angle &#x3b8;where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function different from Y=sin &#x3b8; at phase angles lying inside the data regions having a range of &#x394;&#x3b8; associated with each phase angle &#x3b8;where data of the second value is to be encoded. The third harmonic of the waveform may be generated and used.

Single and multiple sinewave modulation and demodulation techniques, apparatus, and communications systems

Coaxial cable communications systems and methods employing single and multiple sinewave modulation and demodulation techniques

Wire communications systems and methods employing single and multiple sinewave modulation and demodulation techniques

Growing community of inventors

Glenbrook, NV, United States of America

Kenneth D'Alessandro