Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate
2011-05-10
2011-05-10
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Microphone capsule only
C381S175000, C381S189000, C381S190000, C381S191000
Reexamination Certificate
active
07940944
ABSTRACT:
A directional silicon condenser microphone having an additional back chamber is disclosed. The directional silicon condenser microphone comprises a case having a front sound hole for passing through a front sound; a acoustic delay device for delaying a phase of a sound; a substrate including a chamber case, a MEMS chip having an additional back chamber formed by the chamber case, an ASIC chip for operating the MEMS chip, a conductive pattern for bonding the substrate to the case, and a rear sound hole for passing through a rear sound; a fixing means for fixing the case to the substrate; and an adhesive for bonding the case and the substrate, wherein the adhesive is applied to an entirety of a bonding surface of the case and the substrate fixed by the fixing means.
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BSE Co., Ltd.
Eason Matthew
Kuntz Curtis
Ladas & Parry LLP
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