EP 2721601 A2 20140423 - PASSIVE POLYPHONIC DOUBLE-COIL MICROPHONE FOR A STRING MUSICAL INSTRUMENT
Title (en)
PASSIVE POLYPHONIC DOUBLE-COIL MICROPHONE FOR A STRING MUSICAL INSTRUMENT
Title (de)
PASSIVES POLYPHONISCHES DOPPELSPULIGES MIKROFON FÜR SAITEN-MUSIKINSTRUMENT
Title (fr)
MICROPHONE POLYPHONIQUE PASSIF A DOUBLE BOBINAGE POUR INSTRUMENT DE MUSIQUE A CORDES
Publication
Application
Priority
- FR 1155404 A 20110620
- FR 2012000248 W 20120619
Abstract (en)
[origin: WO2012175824A2] The invention relates to a passive polyphonic double-coil microphone (10) for a string musical instrument (13), including: a substrate (11); and a set of pairs of coils, wherein, for each pair of coils, the two coils are electrically mounted in series and magnetically coupled (LC) together. The microphone according to the invention is essentially characterized in that it further includes: a unit consisting of at least one internal dipole magnet (40), the poles of which are magnetically coupled to the respective core of a coil from a pair of coils; a set of magnetic shields that are rigidly connected to the substrate (11), wherein each coil is surrounded by a respective magnetic shield, and wherein, for each pair of coils, one of the coils is connected to the ground, and the other is provided to carry an output signal to an amplifier.
IPC 8 full level
G10H 3/18 (2006.01); G10H 1/32 (2006.01); G10H 3/12 (2006.01); H04R 9/08 (2006.01)
CPC (source: EP)
G10H 3/181 (2013.01); G10H 3/182 (2013.01); G10H 2220/505 (2013.01); G10H 2220/565 (2013.01)
Citation (search report)
See references of WO 2012175824A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 2976757 A1 20121221; FR 2976757 B1 20140103; EP 2721601 A2 20140423; EP 2721601 B1 20160113; WO 2012175824 A2 20121227; WO 2012175824 A3 20140313
DOCDB simple family (application)
FR 1155404 A 20110620; EP 12802892 A 20120619; FR 2012000248 W 20120619