Method of and apparatus for generating an inerstitial point in a

Details Method of and apparatus for generating an inerstitial point in a Method of and apparatus for generating an inerstitial point in a

1982-10-29

1985-07-09

Thomas, James D.

Boots, shoes, and leggings

364853, G06F 738, G06G 728, G06G 730

Patent

active

045286396

ABSTRACT:
Apparatus for doubling the data density rate of an analog to digital converter or doubling the data density storage capacity of a memory device. An interstitial data point midway between adjacent data points in a data stream having an even number of equal interval data points is generated by applying a set of predetermined one-dimensional convolute integer coefficients which can include a set of multiplier coefficients and a normalizer coefficient. Interpolator means apply the coefficients to the data points by weighting equally on each side of the center of the even number of equal interval data points to obtain an interstital point value at the center of the data points. A one-dimensional output data set, which is twice as dense as a one-dimensional equal interval input data set, can be generated where the output data set includes interstitial points interdigitated between adjacent data points in the input data set. The method for generating the set of interstital points is a weighted, nearest-neighbor, non-recursive, moving, smoothing averaging technique, equivalent to applying a polynomial regression calculation to the data set.

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Blerkhom et al, "First Order Interpolator--2 Degrees of Freedom Algorithm for Data Compression", IBM Technical Disclosure Bulletin, vol 10, #2, Jul. 1967, pp. 133-134.

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