Title:
NOISE CANCELING MICROPHONE WITH ACOUSTICALLY TUNED PORTS
Document Type and Number:
WIPO Patent Application WO2005034571
Kind Code:
B1
Abstract:
Certain embodiments of a noise canceling microphone with acoustically tuned ports are disclosed herein. In one aspect of the invention, the noise canceling microphone may comprise a housing, a transducer for converting received energy received into electrical signals, where the transducer is located in the housing, a front and rear sound pathways to a front and rear sound openings in the transducer, where the front and rear sound pathways may be located on opposite sides of the housing and may be displaced 180 degrees off a vertical axis. The noise canceling microphone may further comprising a boom for supporting the noise canceling microphone, where the boom may be deformed to place the noise canceling microphone near the mouth of the user. For example, the boom may be deformed to place the noise canceling microphone at least ten millimeters away from the edge of the mouth of the user.
Inventors:
HAAPAPURO ANDREW J (US)
DRAMBAREAN VIOREL (US)
DRAMBAREAN VIOREL (US)
Application Number:
PCT/US2004/032176
Publication Date:
September 09, 2005
Filing Date:
September 30, 2004
Export Citation:
Assignee:
ETYMOTIC RES INC (US)
HAAPAPURO ANDREW J (US)
DRAMBAREAN VIOREL (US)
HAAPAPURO ANDREW J (US)
DRAMBAREAN VIOREL (US)
International Classes:
H04B1/38; H04M1/05; H04M1/19; H04R1/10; H04R1/28; H04R1/38; H04B1/44; H04R1/08; (IPC1-7): H04R3/00; H04R1/02
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