公开(公告)号：EP2571019B1

公开(公告)日：2017-03-01

申请号：EP12182376.9

申请日：2012-08-30

申请人： YAMAHA CORPORATION

发明人： Tanaka, Hisanori ,  Koga, Ryohei ,  Endo, Junji ,  Shimizu, Tsuneo ,  Ochi, Mitsunori ,  Akabane, Takahiro

IPC分类号： G10H1/055 ,  G10H1/34 ,  G10H3/14 ,  G10H1/46 ,  G01L1/20 ,  G06F3/02

CPC分类号： H03K17/9647 ,  G01L1/20 ,  G01L1/205 ,  G06F3/02 ,  G10H1/0558 ,  G10H1/344 ,  G10H1/46 ,  G10H3/146 ,  G10H2220/066 ,  G10H2220/275 ,  G10H2220/295 ,  G10H2220/561 ,  G10H2250/435

公开(公告)号：EP2571019A1

公开(公告)日：2013-03-20

申请号：EP12182376.9

申请日：2012-08-30

申请人： YAMAHA CORPORATION

发明人： Tanaka, Hisanori ,  Koga, Ryohei ,  Endo, Junji ,  Shimizu, Tsuneo ,  Ochi, Mitsunori ,  Akabane, Takahiro

IPC分类号： G10H1/055 ,  G10H1/34 ,  G10H3/14 ,  G10H1/46 ,  G01L1/18

CPC分类号： H03K17/9647 ,  G01L1/20 ,  G01L1/205 ,  G06F3/02 ,  G10H1/0558 ,  G10H1/344 ,  G10H1/46 ,  G10H3/146 ,  G10H2220/066 ,  G10H2220/275 ,  G10H2220/295 ,  G10H2220/561 ,  G10H2250/435

摘要： A controller includes an operating member (120) operable by user's depression, and a touch detection device (140) constructed to detect a depressing touch on the operating member. The touch detection device includes a movable contact pattern (PT2) provided on the lower surface (120b) of the operating member (120), and a fixed contact pattern (PT1) disposed underneath the operating member (120). One of the fixed and movable contact patterns is a coil-shaped contact pattern while the other of the fixed and movable contact patterns is a uniform surface pattern, at least one of the fixed and movable contact patterns has flexibility, and at least one of the fixed and movable contact patterns has a surface slanted from the center of the coil toward the outer peripheral edge of the coil. The coil-shaped contact pattern comprises first and second contact elements constituting a dual coil pattern.