Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1989-11-15
1991-02-12
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307529, 332149, 364718, H03C 150, H03B 1900
Patent
active
049927434
ABSTRACT:
Arrangements are provided for generation of dual-tone waveforms utilizing direct digital waveform synthesis techniques and architecture and retaining the advantageous characteristics of direct digital waveform synthesis. Preferred embodiments feature combination of generated waveforms at an analog adder, a digital adder using a single digital-to-analog converter and at a single wave table, respectively, each providing particular hardware economies and operational advantages with respect to other preferred embodiments.
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Fred H. Ives, "Multifunction Synthesizer for Building Complex Waveforms", Feb. 1989, Hewlett-Packard Journal, pp. 52-57.
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Becker Stephen A.
John Fluke Mfg. Co. Inc.
Miller Stanley D.
Noe George T.
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