Digitally controlled electronic function generator

Details Digitally controlled electronic function generator Digitally controlled electronic function generator

1983-03-11

1986-04-15

Sloyan, T. J.

Boots, shoes, and leggings

340347DA, 340347M, 364722, G06J 100

Patent

active

045831882

ABSTRACT:
A new method and apparatus for generating an analog output signal as a function of a digital input in the form of digital words over a specified range. The range is divided into a plurality of intervals, and the function is approximated by a linear segment in each interval. Each linear segment is defined by a step value, which is the value of the linear segment at the beginning the interval, and a slope value, which is the slope of the linear segment in the interval. The function is then approximated for any desired digital word in the range by determining the step and slope values for the interval into which the digital input signal falls, determining an incremental value by multiplying the slope value by the difference between the digital input signal and the value of the digital input signal at the beginning of the interval, and adding the incremental value to the step value.

REFERENCES:
patent: 3939459 (1976-02-01), Hoopes
patent: 4021800 (1977-05-01), Katagiri et al.
patent: 4064423 (1977-12-01), Atkisson, Jr.
patent: 4464727 (1984-08-01), Parkes et al.
patent: 4482975 (1984-11-01), King et al.

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