Simulating analog display slew rate intensity variations in a digital graphics display

A method of determining an intensity value for a pixel in a display for displaying digitized waveforms. The intensity values simulate an analog display so that intensity at high slew rates about a point is lower than intensity at low slew rates about a point. Intensity may be computed as a function...

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1. Verfasser:	TIMM DANIEL P
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SEALS TESTING
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creator	TIMM DANIEL P
description	A method of determining an intensity value for a pixel in a display for displaying digitized waveforms. The intensity values simulate an analog display so that intensity at high slew rates about a point is lower than intensity at low slew rates about a point. Intensity may be computed as a function of slew rate. Alternatively, for speed, the absolute difference between waveform magnitudes at consecutive samples is used as an index into a pre-computed table of intensity values. As a result, for each sample, only a subtraction and a table look-up are needed to provide intensity variation. In an alternative embodiment, intensity values are higher at higher slew rates to accentuate rising and falling edges of digital waveforms.
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The intensity values simulate an analog display so that intensity at high slew rates about a point is lower than intensity at low slew rates about a point. Intensity may be computed as a function of slew rate. Alternatively, for speed, the absolute difference between waveform magnitudes at consecutive samples is used as an index into a pre-computed table of intensity values. As a result, for each sample, only a subtraction and a table look-up are needed to provide intensity variation. In an alternative embodiment, intensity values are higher at higher slew rates to accentuate rising and falling edges of digital waveforms.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SEALS TESTING
title	Simulating analog display slew rate intensity variations in a digital graphics display
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