Process for identifying discrete data representative of an input

Details Process for identifying discrete data representative of an input Process for identifying discrete data representative of an input

1990-06-27

1993-05-25

Envall, Jr., Roy N.

Boots, shoes, and leggings

36441303, 36441305, G06F 1500

Patent

active

052145808

ABSTRACT:
Processing waveform data for compressed display. A parameter to be displayed is measured, digitized, and displayed on a device that does not permit display of all of the data samples; thus, the digitized data is converted to a compressed form. For a compression factor of N input samples for each displayed sample, a displayed sample is taken from each successive group of N input samples. The choice of input sample is as follows: the sample having the maximum value of the group is chosen if all of the samples of the group are greater than or equal to the previous displayed sample; if all of the samples of the group are less than or equal to the previous displayed sample, then the sample having the minimum value is chosen; if the maximum and minimum values of a group straddle the value of the previous displayed sample, then a maximum sample and a minimum sample are chosen from the combination of that group and the next group. The technique can be applied in situations where N is not an integer. In such situations, the technique includes the calculation of an additional "pivot sample" for at least some of the groups.

REFERENCES:
patent: 4194183 (1980-03-01), Neuner et al.
patent: 4308098 (1991-12-01), Neuner et al.
patent: 4499548 (1985-03-01), Beebe
patent: 4503510 (1985-03-01), Weaver

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