Exponential decay wave form generator and method

Details Exponential decay wave form generator and method Exponential decay wave form generator and method

1976-02-18

1977-07-19

Heyman, John S.

Oscillators

Relaxation oscillators

328144, 331106, 332 37R, 84 113, H03K 404

Patent

active

040371646

ABSTRACT:
A command signal is provided through a buffer amplifier to an exponential signal generator which provides an exponential signal envelope at the output thereof. The exponential signal envelope is coupled to an inverting unity gain amplifier for providing an inverse exponential signal envelope. The exponential and inverse exponential signal envelopes are coupled to an astable element which provides an output frequency having an amplitude related to the exponential signal envelopes. Means are included in the exponential signal generator for providing a predetermined decay time for the exponential signal envelopes. Means are included in the astable element for providing a predetermined frequency at the output of the astable element. Means are also included in the astable element for providing a common assymptote for the exponential and inverse exponential signal envelopes.

REFERENCES:
patent: 3201707 (1965-08-01), Aucremanne et al.
patent: 3502987 (1970-03-01), Newton
patent: 3636801 (1972-01-01), Ichikawa
patent: 3846645 (1974-11-01), Kim et al.

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