Processing

Please wait...

Settings

Settings

Goto Application

1. WO2010116324 - BACKPLATE FOR MICROPHONE

Publication Number WO/2010/116324
Publication Date 14.10.2010
International Application No. PCT/IB2010/051484
International Filing Date 06.04.2010
IPC
H04R 19/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
19Electrostatic transducers
H04R 31/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
31Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
B81C 1/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
81MICROSTRUCTURAL TECHNOLOGY
CPROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
1Manufacture or treatment of devices or systems in or on a substrate
CPC
H04R 19/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
19Electrostatic transducers
005using semiconductor materials
H04R 2499/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2499Aspects covered by H04R or H04S not otherwise provided for in their subgroups
10General applications
11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
H04R 31/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
31Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Y10T 29/49005
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
49002Electrical device making
49005Acoustic transducer
Y10T 29/49575
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
4957Sound device making
49575including diaphragm or support therefor
Applicants
  • NXP B.V. [NL]/[NL] (AllExceptUS)
  • AVOORT, Cas van der [NL]/[NL] (UsOnly)
  • JANSMAN, Andreas, Bernardus [NL]/[NL] (UsOnly)
  • LANGEREIS, Geert [NL]/[NL] (UsOnly)
  • VAN LIPPEN, Twan [NL]/[NL] (UsOnly)
  • SUY, Hilco [NL]/[NL] (UsOnly)
Inventors
  • AVOORT, Cas van der
  • JANSMAN, Andreas, Bernardus
  • LANGEREIS, Geert
  • VAN LIPPEN, Twan
  • SUY, Hilco
Agents
  • WILLIAMSON, Paul, L.
Priority Data
09157442.606.04.2009EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) BACKPLATE FOR MICROPHONE
(FR) PLAQUE ARRIÈRE POUR MICROPHONE
Abstract
(EN) A microphone has a membrane (20) mounted to vibrate in response to pressure fluctuations, a backplate (30) facing the membrane and being more rigid than the membrane, and circuitry (95) for sensing the vibrations relative to the backplate, the backplate being prestressed and having a geometry such that a response of the backplate to structure borne vibration matches a corresponding response of the membrane. This can help reduce or minimize relative movement between these surfaces caused by structure borne vibration and hence improve the signal-to-noise ratio of the microphone. The geometry can be a hub and spoke arrangement.
(FR) L'invention porte sur un microphone qui comprend une membrane (20) montée pour vibrer en réponse à des fluctuations de pression, une plaque arrière (30) faisant face à la membrane et plus rigide que la membrane, et des circuits (95) pour détecter les vibrations par rapport à la plaque arrière, la plaque arrière étant précontrainte et ayant une géométrie telle qu'une réponse de la plaque arrière à des vibrations transmises par la structure concorde avec une réponse correspondante de la membrane. Cela peut aider à réduire ou minimiser un mouvement relatif entre ces surfaces provoqué par des vibrations transmises par la structure et à ainsi améliorer le rapport signal sur bruit du microphone. La géométrie peut être un agencement à moyeu et rayon.
Related patent documents
Latest bibliographic data on file with the International Bureau