Title:
打撃検出装置
Document Type and Number:
Japanese Patent JP5904401
Kind Code:
B2
Abstract:
Based on a peak level of a waveform in a predetermined period after the input of the waveform started and a value indicative of the degree of change in the waveform in the predetermined period, a judging device determines whether the waveform is caused by a strike. Thus, the peak level and a value indicative of the degree of change in the waveform are considered to determine whether the waveform is caused by a strike. A waveform with a small peak level caused by a weak strike is not erroneously detected as noise, while accurate detection of strikes can be obtained.
Inventors:
Ryo Susami
Application Number:
JP2012004145A
Publication Date:
April 13, 2016
Filing Date:
January 12, 2012
Export Citation:
Assignee:
Roland Corporation
International Classes:
G10H1/00; G10G1/00; G10L25/51
Domestic Patent References:
| JP62156698A | ||||
| JP200020064A | ||||
| JP200089792A | ||||
| JP2009180813A | ||||
| JP63164797U | ||||
| JP2010271428A | ||||
| JP2009258200A | ||||
| JP1020854A |
Foreign References:
| US5438529 |
Attorney, Agent or Firm:
Patent Service Corporation Shinmei Century