Polyphonic multi-dimensional controller with sensor having force-sensing potentiometers
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United States of America Patent
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Oct 3, 2017
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N/A
app pub date -
Jul 27, 2015
filing date -
Nov 5, 2014
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Abstract
A polyphonic multi-dimensional controller (PMC) provides for independently expressing multiple concurrently sounding musical notes. The PMC includes rows and columns of force-sensing potentiometers (FSPs) that define an array of single-touch zones (STZs). Using a z-axis switch configuration, touches are detected and the forces associated with the touches are measured. For STZs for which a touch is detected, a fine x position and a fine y position are determined respectively using an x-axis switch configuration and a y-axis switch configuration. By repeatedly scanning the STZs, the x-axis position, the y-axis position, and the z-axis force can be tracked and translated into 3-axis note expression data. The PMC is multi-touch so that the 3-axis note expression data can be polyphonic.
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