Daniel J Warren

US Patent:

7065220, Jun 20, 2006

Filed:

Sep 28, 2001

Appl. No.:

09/966873

Inventors:

Daniel Max Warren - Geneva IL, US
Stephen C. Thompson - Naperville IL, US

Assignee:

Knowles Electronics, Inc. - Itasca IL

International Classification:

H04R 3/00

US Classification:

381 92

Abstract:

A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further comprises circuitry for summing the low pass filtered first order signal and the high pass filtered second order signal. A method of determining whether a plurality of microphones have sufficiently matched frequency response characteristics to be used in a multi-order directional microphone array is also disclosed. For a microphone array having at least three microphones, wherein one of the microphones is disposed between the other of the microphones, a method of determining the arrangement of the microphones in the array is also disclosed.

US Patent:

7103196, Sep 5, 2006

Filed:

Mar 12, 2002

Appl. No.:

10/095819

Inventors:

Daniel Max Warren - Geneva IL, US

Assignee:

Knowles Electronics, LLC. - Itasca IL

International Classification:

H04R 25/00

US Classification:

381429

Abstract:

A receiver, such as for use in a hearing aid, is disclosed. The receiver comprises a housing and a diaphragm assembly disposed within the housing. The diaphragm assembly acoustically divides the housing into a front volume and a back volume. The diaphragm assembly comprises a paddle having a perimeter, a flexible annulus connected to the paddle, and a diaphragm support, wherein the diaphragm support secures the perimeter of the annulus to the housing. The receiver further comprises a plurality of apertures in the diaphragm assembly, wherein the plurality of apertures provides an acoustic distortion of no greater than 2% THD.

US Patent:

7336797, Feb 26, 2008

Filed:

May 10, 2004

Appl. No.:

10/842654

Inventors:

Stephen C. Thompson - Naperville IL, US
David E. Schafer - Glen Ellyn IL, US
Daniel M. Warren - Geneva IL, US

Assignee:

Knowles Electronics, LLC. - Itasca IL

International Classification:

H04R 11/02

US Classification:

381418, 381417, 381324

Abstract:

A receiver assembly includes a housing having a fixed housing portion and a shiftable housing portion cooperating to define a hollow cavity. A flexible membrane secured between the fixed housing portion and the shiftable housing portion and adapted to allow relative motion between the fixed and shiftable housing portions. The receiver assembly further includes a magnetic motor assembly including a displaceable drive rod; and a link assembly having a first end fixedly attached to an inner surface of the shiftable housing and a second end coupled to the drive rod. The link assembly translates the shiftable housing portion relative to the fixed housing portion in response to the displacement of the drive rod.

US Patent:

D573588, Jul 22, 2008

Filed:

Oct 26, 2006

Appl. No.:

29/267979

Inventors:

Daniel Max Warren - Geneva IL, US
Matthew Mial Mason - Algonquin IL, US
Clifford Ryan Grounds - Plainfield IL, US
Thomas Joschika - Sleepy Hollow IL, US

Assignee:

Knowles Electronic, LLC - Itasca IL

International Classification:

1401

US Classification:

D14225

US Patent:

7412763, Aug 19, 2008

Filed:

Mar 28, 2006

Appl. No.:

11/277697

Inventors:

Mekell Jiles - South Holland IL, US
David Earl Schafer - Glen Ellyn IL, US
Anthony D. Minervini - Palos Hills IL, US
Hanny Sunarto - Bloomingdale IL, US
Thomas Edward Miller - Arlington Heights IL, US
Daniel Max Warren - Geneva IL, US

Assignee:

Knowles Electronics, LLC. - Itasca IL

International Classification:

H04R 31/00

US Classification:

29594, 295921, 296091, 156 8911, 156 8912, 156250, 381173, 381348, 381369, 381396, 367170, 367171, 367181

Abstract:

A method of making an acoustic assembly for use in a transducer includes forming a multi-layer assembly. The multi-layer assembly includes a first layer member and a second layer member. Each member includes a center portion, an edge portion and an aperture separating the center portion and the edge portion. The assembly has an assembly stiffness that is greater than the stiffness of either the first or second layer members. A hinge joins the assembled first and second center portions and the first and second edge portions such that the assembled first and second center portions is free to at least partially rotate relative to the assembled first and second edge portions about an axis. A flexible layer member is coupled to the assembly and provides airtight sealing of the passageway.

US Patent:

7415125, Aug 19, 2008

Filed:

May 10, 2004

Appl. No.:

10/842663

Inventors:

Daniel M. Warren - Geneva IL, US
Stephen C. Thompson - Naperville IL, US
David E. Schafer - Glen Ellyn IL, US

Assignee:

Knowles Electronics, LLC - Itasca IL

International Classification:

H04R 11/02
H04R 25/00

US Classification:

381418, 381186

Abstract:

A receiver assembly includes a first diaphragm assembly having a diaphragm, and a second diaphragm assembly having a diaphragm. A linkage assembly is coupled to an armature of the receiver. The linkage assembly is also coupled to the first diaphragm assembly and to the second diaphragm assembly.

US Patent:

7471798, Dec 30, 2008

Filed:

Apr 28, 2003

Appl. No.:

10/424552

Inventors:

Daniel M. Warren - Geneva IL, US

Assignee:

Knowles Electronics, LLC - Itasca IL

International Classification:

H04R 3/00
H04R 1/02
H04R 25/00
G01S 3/80

US Classification:

381 92, 381 91, 381122, 381312, 381313, 381111, 367119, 367131, 367121

Abstract:

A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further comprises circuitry for summing the low pass filtered first order signal and the high pass filtered second order signal. A method of determining whether a plurality of microphones have sufficiently matched frequency response characteristics to be used in a multi-order directional microphone array is also disclosed. For a microphone array having at least three microphones, wherein one of the microphones is disposed between the other of the microphones, a method of determining the arrangement of the microphones in the array is also disclosed.

US Patent:

7680292, Mar 16, 2010

Filed:

May 30, 2007

Appl. No.:

11/755408

Inventors:

Daniel Max Warren - Geneva IL, US
Thomas Edward Miller - Arlington Heights IL, US
Charles Bender King - Chicago IL, US
Janice L. LoPresti - Itasca IL, US
Gwendolyn P. Massingill - Aurora IL, US

Assignee:

Knowles Electronics, LLC - Itasca IL

International Classification:

H04R 25/00

US Classification:

381322, 381328, 381418

Abstract:

A receiver module for a personal listening device to be fitted in the ear, on the ear, near the ear, or behind the ear, the receiver module having a movable armature, the receiver module comprises a motor assembly and a housing defining a chamber, the housing is made from a material that is corrosion resistant and is biocompatible to human skin contact. The receiver module further comprises at least one motor assembly directly disposed in the chamber. Optionally a communication link adapted to couple or decouple with the motor assembly. At least a portion of the communication link is disposed in the housing.