EP 0813732 B1 19990728 - MOTION SENSOR FOR A PIANO KEY MOTION ANALYSIS SYSTEM
Title (en)
MOTION SENSOR FOR A PIANO KEY MOTION ANALYSIS SYSTEM
Title (de)
BEWEGUNGSDETEKTOR BEI EINEM SYSTEM ZUR ANALYSE DER BEWEGUNG VON KLAVIERTASTEN
Title (fr)
CAPTEUR DE DEPLACEMENT DANS UN SYSTEME D'ANALYSE DU MOUVEMENT DES TOUCHES D'UN PIANO
Publication
Application
Priority
- FR 9600328 W 19960301
- FR 9502512 A 19950303
- FR 9514259 A 19951201
Abstract (en)
[origin: FR2731293A1] A motion sensor device particularly suitable for use under a piano keyboard in an opto-electronic piano key motion analysis system. The device comprises a body (24, 26) attachable to the piano under the keys thereof, and at least one element (12) that is movable relative to the body (24, 26) and has one end (11) contacting the underside of a piano key. The mutually contacting surfaces of the movable element (12) and the key include a magnetic element (14, 16) and a corresponding magnetic or magnetisable element (14, 16) whose mutual pull is determined in such a way that the end (11) of said movable element (12) remains in contact with the key during normal use.
IPC 1-7
IPC 8 full level
G10H 1/053 (2006.01); G10H 1/34 (2006.01)
CPC (source: EP KR)
G10H 1/34 (2013.01 - KR); G10H 1/344 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2731293 A1 19960906; FR 2731293 B3 19970430; AT E182712 T1 19990815; DE 69603458 D1 19990902; DE 69603458 T2 19991118; EP 0813732 A1 19971229; EP 0813732 B1 19990728; JP H11501130 A 19990126; KR 19980702731 A 19980805; WO 9627868 A1 19960912
DOCDB simple family (application)
FR 9514259 A 19951201; AT 96905899 T 19960301; DE 69603458 T 19960301; EP 96905899 A 19960301; FR 9600328 W 19960301; JP 52665396 A 19960301; KR 19970706138 A 19970903