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:
Mar. 07, 2006
Filed:
Feb. 17, 1999
Randall W. Roberts, Eden Prairie, MN (US);
David A. Preves, Minnetonka, MN (US);
Mark A. Bren, Laretto, MN (US);
Randall W. Roberts, Eden Prairie, MN (US);
David A. Preves, Minnetonka, MN (US);
Mark A. Bren, Laretto, MN (US);
Micro Ear Technology, Inc., Plymouth, MN (US);
Abstract
An apparatus for and method of employing an electronic hearing aid device to assist a hearing impaired patient. The resonance curve of the outer auditory canal of the patient is determined. A device in accordance with the present invention is tuned to a frequency response curve which matches the measured resonance curve. The device is tuned by adjusting the overshoot of a low pass filter stage which is interposed between the microphone input and a class D output stage.