EP 1747699 A2 20070131 - LOW ACCELERATION SENSITIVITY MICROPHONE
Title (en)
LOW ACCELERATION SENSITIVITY MICROPHONE
Title (de)
MIKROPHON MIT GERINGER BESCHLEUNIGUNGSEMPFINDLICHKEIT
Title (fr)
MICROPHONE A FAIBLE SENSIBILITE A L'ACCELERATION
Publication
Application
Priority
- US 2005011115 W 20050401
- US 55869304 P 20040401
- US 98263904 A 20041105
- US 64307405 P 20050111
Abstract (en)
[origin: WO2005099306A2] An implanted microphone (8) is provided that has reduced sensitivity to vibration an acceleration forces. The microphone (8) differentiates between the desirable and undesirable components of a transcutaneously received signal. More specifically, the present invention utilizes a cancellation output (64) from a cancellation surface (60) that is indicative of acceleration acting on the implanted microphone (e.g., an acceleration signal) to counteract and/or cancel the effects of acceleration induced pressures in an output (54) of a microphone diaphragm (10). This may be done in a variety of ways, including but not limited to, pneumatically, mechanically, electrical analog, or digitally, or combinations thereof. In one arrangement, the output (64) may be filtered (68) to match the acceleration response (52) of the of the microphone diaphragm (10). Upon removal of the cancellation output (64) from the diaphragm output (54) the remaining signal (76) corresponds to an acoustic response (42) of the diaphragm (10).
IPC 8 full level
H04R 25/00 (2006.01); H04R 17/02 (2006.01); H04R 19/01 (2006.01)
CPC (source: EP)
H04R 25/604 (2013.01); H04R 17/02 (2013.01); H04R 19/016 (2013.01); H04R 25/606 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
WO 2005099306 A2 20051020; WO 2005099306 A3 20070405; EP 1747699 A2 20070131; EP 1747699 A4 20100505; EP 1747699 B1 20140716
DOCDB simple family (application)
US 2005011115 W 20050401; EP 05732509 A 20050401