公开(公告)号：AU2009280002A1

公开(公告)日：2010-02-11

申请号：AU2009280002

申请日：2009-08-07

Applicant: STARKEY LAB INC

Inventor： LIN WEI LI ,  RECKER KARRIE LARAE ,  ZHANG TAO

IPC: A61B5/12

Abstract: In various embodiments, a system is used to provide an apparatus configured to measure sound in an ear canal of a wearer's ear at a distance from a tympanic membrane of the ear. The sound is measured and received by the apparatus to produce a signal. A frequency analysis is performed on the signal to determine output as a function of the frequency and to determine the frequency of the minima (null). Further, a distance equal to a quarter wavelength of the null frequency is calculated. A correction factor associated with the quarter wavelength is retrieved and applied to the output to generate a corrected output. An estimated sound pressure level at the tympanic membrane from the corrected output is produced.

公开(公告)号：DK2348757T3

公开(公告)日：2016-02-01

申请号：DK10252241

申请日：2010-12-29

Applicant: STARKEY LAB INC

Inventor： LIN WEI LI

IPC: H04R25/00