Etymotic Research, Inc.

Earlens Corporation

Industrial Research Products, Inc.

Other

Mayo Foundation for Medical Education and Research

Broadcom Corporation

Team IP Holdings, LLC

Mck Audio, Inc.

Mead C Killion

Viorel Drambarean

Andrew J Haapapuro

Timothy Scott Monroe

Jonathan K Stewart

Steve Iseberg

Robert B Schulein

John Stuhr French

Matthew J Roberts

Don Wilson

Sunil Puria

Jonathan P Fay

James Stone

Vincent Pluvinage

Lee Felsenstein

Jack Goldberg

Donald L Wilson

Norman P Matzen

Gregory R Shaw

Elmer V Carlson

Steven J Iseberg

Dan Mapes-Riordan

Richard L Goode

Steve Viranyi

Sumitrajit Dhar

Charles Aldous

Gail Gudmundsen

Anthony J Becker

Jonathan Siegel

Chris William Papalias

Dana S Helmink

Johannes Wittkowski

Jont Allen

Gregory A Flamme

Stephen Drake Julstrom

Jan Stepanek

Michael J Cevette

William Frank Dunn

Ron Scicluna

Erik C Gundersen

Laurel Christensen

Andrew Haapapuro

Fred Waldhauer, Deceased

William A Johnson

Robert Nicolo Falco

John Edward Oltman

David A Preves

Kelly R Kodama

Jerrold S Zdenek

James B Compton

James Collins

Clyde M Brown, Jr

Elliott H Berger

James Richard Hendershot

Greg R Shaw

David Michael Friesema

Thomas V Fantasia

Steven Viranyi

Timothy Milam

Mary Paulson

Steven D Julstrom

Fred Waldhauer

Russ Thoma

Steven P Hanke

Arthur C Johnson

Harry Teder

William A Cole

John S French

Jonathan Stewart

Richard M D Goode

Earphone

Systems and methods for arranging two first-order directional microphones in tandem to form a second-order directional microphone system of an amplified listening device are provided. The amplified listening device includes a first directional microphone configured to provide a first electrical signal having a first phase, and a second directional microphone reversed in space and configured to provide a second electrical signal having a second phase opposite the first phase. Microphone inlet ports of the first and second directional microphones are linearly aligned in a same plane. The rear microphone inlet ports of the first and second directional microphones are positioned adjacent each other. The amplified listening device includes a resistive summing circuit without phase inverting circuitry. The resistive summing circuit is configured to combine the first electrical signal and the second electrical signal to generate a second order directional response.

System and method for providing an arrangement of two first-order directional microphones arranged in tandem to form a second-order directional microphone system

A device to transmit an audio signal comprises at least one light source configured to transmit the audio signal with at least one wavelength of light. At least one detector is configured to detect the audio signal and generate at least one electrical signal in response to the at least one wavelength of light. A transducer is supported with and configured to vibrate at least one of an eardrum, an ossicle or a cochlea. Active circuitry is coupled to the transducer to drive the transducer in response to the at least one electrical signal, so as to provide the user with high quality sound.

Optical electro-mechanical hearing devices with separate power and signal components

Certain embodiments provide a hearing testing probe apparatus. The hearing testing probe apparatus includes a probe tube detachably coupled at a first end to a probe body and extending through a center hole in an eartip to align proximate a face of the eartip at a second end. The probe tube includes a plurality of stimulus lumens for receiving and carrying stimulus from the first end of the probe tube for output at the second end of the probe tube. The probe tube includes one or more microphone lumens for receiving and carrying one or more measured responses from the second end of the probe tube to one or more microphones at the first end of the probe tube.

Hearing testing probe apparatus with digital interface

A speech intelligibility system. Embodiments comprise a talker unit, a listener unit and an earpiece. The talker unit includes a microphone to receive audible speech content and to produce electrical signals representative of the speech content, and a transmitter coupled to the microphone to produce wireless transmissions containing the speech content. The listener unit includes a receiver to receive the wireless transmissions and to produce electrical signals representative of the speech content. At least one of the talker unit and the listener unit includes an amplifier to amplify spectral components of the speech content within a frequency range having a lower end between about 800 Hz and 1,700 Hz and an upper end between about 7,000 Hz and 11,000 Hz. The earpiece is coupled to the listener unit and includes a speaker to produce audible speech content having the amplified spectral components and a tube to direct the audible speech content from the speaker toward a user's ear canal.

Speech intelligibility enhancement system

Various embodiments include a system and method that control idling current of a pulse modulated driver. The system may include an audio input device configured to receive an audio input signal. The system can include sliding bias control circuitry configured to generate a sliding bias control signal based on a level of the audio input signal. The system may include sliding bias generation circuitry configured to generate a sliding bias voltage superimposed onto the audio input signal to generate a pulse modulated driver input signal that is input into an amplifier. The sliding bias voltage may be based on the sliding bias control signal.

Sliding bias method and system for reducing idling current while maintaining maximum undistorted output capability in a single-ended pulse modulated driver

Provided is a disclosure for measuring the occlusion effect due to the depth of seal of the earpiece in the ear canal using a single microphone.

Method and system for determining the occlusion effect in an earpiece

A hearing screening system for testing hearing abilities of a patient includes an otoacoustic emission (OAE) module operable to perform OAE tests, a tympanometry (tymp) module operable to perform tymp tests, and at least one probe in communication with at least one of the OAE and tymp modules. The probe includes a probe tip that is configured to be positioned within an ear canal of a patient.

System and method for performing a hearing screening

Methods and systems for rapidly determining and displaying the depth of ear tip placement to improve the reliability of hearing tests may comprise in a hearing assessment system comprising a control system and a probe with a sealing ear tip, a microphone, and a sound source: measuring a pressure versus frequency of an ear canal, determining a first half-wavelength frequency of the ear canal using the measured pressure versus frequency and/or or from the phase of the ear canal reflectance, and calculating a distance between the hearing probe and an eardrum in the ear canal based on the determined first half-wavelength frequency. Subsequent measurements of the ear canal may be performed using the calculated distance. The calculated distance may be stored in a memory in the control system for the subsequent measurements of the ear canal. The calculated distance may be displayed on a gauge on the control system.

Method and system for rapidly determining and displaying the depth of ear tip placement to improve the reliability of hearing tests

The present technology relates to an earphone apparatus adapted for use in audiometry examinations. The earphone apparatus comprises a housing and a receiver having an acoustic output adapted to connect with an audio signal source. The earphone apparatus can also include a circuit board with an electrical equalization network connected to the receiver. A coupling can be connected to the acoustic output of the receiver. A sound tube can be connected to the acoustic output and extends out from the housing to an ear piece. The earphone also includes a resonance cancellation assembly comprising a damping chamber and a tubing section acoustically connecting the damping chamber to the coupling. The damping chamber can provide an acoustic compliance to the sound delivered by the receiver. The earphone can also comprise an electrical connector with a protector that is adapted to connect with a female connector delivering electrical power.

Audiometry earphone insert

Certain embodiments of the invention may be found in an ultra low power dosimeter assembly. The ultra low power dosimeter assembly may comprise a low power voltage source and a table circuit. The table circuit may be adapted to convert an input voltage to a second voltage level. The second voltage level may correspond to noise dose. The ultra low power dosimeter assembly may also comprise a switch adapted to trigger a control circuit. The control circuit may provide progressive attenuation of an output signal as the second voltage level increases. In certain embodiments, the control circuit may also be adapted to send one or more warning signals to a user of the ultra low power dosimeter. The one or more warning signals may be sent when the control circuit determines the second voltage level has reached one or more pre-determined threshold voltage levels.

Method and system for an ultra low power dosimeter

Growing community of inventors

Elk Grove Village, IL, United States of America

Mead C Killion