Back to results
US 12,205,569 B2Granted
Instrument playing apparatus
AssigneeYamaha Corporation
InventorsMichiko Tanoue, Fukutaro Okuyama
Life of this patent
Estimating the term…
Abstract
An instrument playing apparatus has: a movable member configured to be displaced responsive to a playing operation of a user; a detection part formed from a magnetic or conductive body and disposed on the movable member; and a filter that includes a coil. The filter has a frequency response that changes depending on a distance between the detection part and the coil, and generates a detection signal from a reference signal.
Claims8
An instrument playing apparatus comprising:
- a movable member configured to be displaced responsive to a playing operation of a user;
- a detection part formed from a magnetic or conductive body and disposed on the movable member;
- and
- a filter that includes a coil and is configured to generate a detection signal from a reference signal, the filter having a frequency response that changes depending on a distance between the detection part and the coil,
- wherein:
- the filter is a band elimination filter that reduces, in the reference signal, frequency components in a stopband, and
- the stopband changes depending on the distance between the detection part and the coil.
4 more elements
Dependencies are inferred from the claim text.