Analog sweep calibrator

Details Analog sweep calibrator Analog sweep calibrator

1974-08-16

1976-04-06

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

307228, 328185, H03K 1300

Patent

active

039493938

ABSTRACT:
A method and means for employing digital means to calibrate an analog sweep waveform in a range determining system. The method imparts digital accuracy in maintaining the voltage-distance analog of the sweep waveform by generating a clock defined strobe at a time when the sweep voltage should reach a reference voltage level, comparing at strobe time the sweep voltage with a precision voltage source of reference level, and correcting the slope of the sweep voltage in accordance with any discrepancy existing at the time of comparison.

REFERENCES:
patent: 3175161 (1965-03-01), Hackborn et al.
patent: 3200338 (1965-08-01), Ellis
patent: 3493961 (1970-02-01), Hansen
patent: 3555298 (1971-01-01), Neelands
patent: 3596193 (1971-07-01), Dunwoodie
patent: 3750142 (1973-07-01), Barnes et al.

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