Linear interpolation between regularly spaced digital samples

Details Linear interpolation between regularly spaced digital samples Linear interpolation between regularly spaced digital samples

1981-09-23

1984-05-01

Malzahn, David H.

Boots, shoes, and leggings

318573, 340728, 364577, G06F 15353

Patent

active

044465297

ABSTRACT:
The process of linearly interpolating between data taken from adjacent storage locations in a memory non-integrally addressed has the initial subtraction and final addition steps eliminated from it, and the partial products to be summed in the intervening multiplication process are modified to compensate for the elimination of these steps. This modification is done with a relatively fast select-one-of-four process, reducing the time for linear interpolation to that required for a simple multiplication--or, in the case of a single-bit multiplier, to the time for selection of the modified multiplicand to be used as linear interpolation result.

REFERENCES:
patent: 4282578 (1981-08-01), Payne et al.
Seim, Thomas A., Numerical Interpolation for Microprocessor-Based Systems, Computer Design, Feb. '78 pp. 111-116.

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