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1. (WO2017156271) MAGNETIC LINEAR FADER

Pub. No.:    WO/2017/156271    International Application No.:    PCT/US2017/021572
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: G06F 3/16
G05B 15/02
G05D 17/02
G06F 17/16
G10H 1/46
H04H 60/04
Applicants: SOUND DEVICES, LLC
Inventors: ANDERSON, Matt
POPOVICH, Steven
ISAACS, Paul
MCDONALD, Jason
Title: MAGNETIC LINEAR FADER
Abstract:
A linear fader includes a slider that is configured to slide along a rail. The slider includes a magnet. The linear fader also includes a plurality of coils spaced along a length of the rail, one or more sensors configured to detect a position of the slider along the rail, and control circuitry operatively coupled to the plurality of coils and the one or more sensors. The control circuitry is configured to receive a signal corresponding to a first location of the slider from at least one of the one or more sensors, receive a desired location of the slider, and cause a first electrical current to pass through the plurality of coils, thereby generating a force on the slider in a direction toward the desired location.