The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1999
Filed:
Jul. 12, 1996
Applicant:
Inventors:
Geoffrey R Ball, Sunnyvale, CA (US);
Wyndham Robertson, III, Fremont, CA (US);
Christopher A Julian, Los Gatos, CA (US);
Assignee:
Symphonix Devices, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381326 ; 600 25 ; 600 57 ;
Abstract
Two stage implantable microphone devices suitable for use in hearing systems are provided. An implantable microphone device may include a housing including a diaphragm with the housing and diaphragm enclosing a chamber; a microphone coupled to the housing; and a vent connecting the microphone to the chamber. Vibrations of the diaphragm are transmitted through the chamber as a first stage and through the vent as a second stage to the microphone. The relative dimensions of the chamber and vent may be utilized to tune the frequency response and sensitivity of the device.