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US 7,627,132 B2Granted
Wind noise reduction for microphone
AssigneeSony Ericsson Mobile Communications AB
InventorDavid Anderson
Life of this patent
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Abstract
The present invention relates to wind noise reduction for a microphone (10) achieved by locating a microphone pick up (2) in a chamber (4) provided with at least one sound passage (5), wherein one or more elements (s) (6) is/are provided in the sound passage (s) (5) to decrease the speed of the air stream.
Claims16
A microphone for a mobile electronic device, the microphone comprising:
- a microphone pick up housing having a cylindrical shielding surface defining a cylindrical chamber therein wherein the cylindrical shielding surface has at least three elongated holes therethrough, wherein a length of each of the elongated holes in a longitudinal direction of the cylindrical chamber is greater than a width thereof in a direction orthogonal with respect to the longitudinal direction wherein the at least three elongated holes are aligned in the longitudinal direction;
- a microphone pick up located in the cylindrical chamber defined by the microphone pick up housing wherein the microphone pick up is surrounded by the at least three elongated holes;
- and
- a noise reduction element covering the elongated holes,
- wherein the microphone pick up comprises a directional condenser type microphone pick up that is surrounded by the at least three elongated holes, and
- wherein the directional condenser type microphone pick up is canted at an angle relative to the longitudinal direction of the cylindrical chamber.
3 more elements
A cellular phone comprising
- a front panel;
- a mouthpiece provided in the front panel;
- and
- a directional microphone unit adjacent the mouthpiece, wherein the directional microphone unit comprises,
- a microphone pick up housing having a cylindrical shielding surface defining cylindrical chamber therein wherein the cylindrical shielding surface has at least three elongated holes therethrough, wherein a length of each of the elongated holes in a longitudinal direction of the cylindrical chamber is greater than a width thereof in a direction orthogonal with respect to the longitudinal direction wherein the at least three elongated holes are aligned in the longitudinal direction;
- a directional condenser type microphone pick up located in the cylindrical chamber defined by the microphone pick up housing wherein the microphone pick up is surrounded by the at least three elongated holes;
- and
- a noise reduction element covering the elongated holes;
- wherein the directional condenser type microphone pick up is surrounded by the at least three elongated holes, and
- wherein the directional condenser type microphone pick up is canted at an angle relative to the longitudinal direction of the cylindrical chamber.
7 more elements
Dependencies are inferred from the claim text.