公开(公告)号：US20190146748A1

公开(公告)日：2019-05-16

申请号：US16231374

申请日：2018-12-21

Applicant: Sound Devices, LLC

Inventor： Matt Anderson ,  Steven Popovich ,  Paul Isaacs ,  Jason McDonald

IPC: G06F3/16 ,  H04H60/04 ,  G10H1/46

Abstract: A rotary fader apparatus includes a fader control knob that is directly attached to the rotor of a non-contact electrical motor. The apparatus may produce a fade effect based on the rotational position of the fader control knob and may be automated through signals to the motor. Such a rotary fader apparatus may be used, for example, in audio mixing applications to provide automated or manual rotary control of track fading. The motor may also be used to alter the feel of the movement of the fader control knob and/or provide tactile feedback in response to mixing parameters or signal properties.

公开(公告)号：US10014966B2

公开(公告)日：2018-07-03

申请号：US15454308

申请日：2017-03-09

Applicant: Sound Devices, LLC

Inventor： Matt Anderson ,  Steven Popovich ,  Paul Isaacs ,  Jason McDonald

IPC: H04R3/00 ,  H04H60/04 ,  H01F7/06 ,  G01R33/07 ,  H02K41/00

CPC classification number: H04H60/04 ,  G01D5/20 ,  G01R33/07 ,  G01R33/072 ,  H01F7/064 ,  H02K41/00 ,  H04R3/00

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.