Noise canceling microphone with acoustically tuned ports

Details Noise canceling microphone with acoustically tuned ports Noise canceling microphone with acoustically tuned ports

2007-01-09

2007-01-09

Mei, Xu (Department: 2615)

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Particular transducer or enclosure structure

C381S122000, C381S357000, C381S367000, C379S433030

Reexamination Certificate

active

10951458

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.

REFERENCES:
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patent: 6647118 (2003-11-01), Miura et al.
patent: 2002/0094101 (2002-07-01), De Roo et al.

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