Brian J Gawronski

US Patent:

8002078, Aug 23, 2011

Filed:

Feb 19, 2009

Appl. No.:

12/388723

Inventors:

Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

A47B 81/06
F16F 7/00
G01S 15/00
H04R 1/20
H05K 5/00

US Classification:

181151, 181145, 181155, 181156, 181199, 181207, 367 99, 381337, 381338, 381353

Abstract:

An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide.

US Patent:

8151929, Apr 10, 2012

Filed:

Jun 30, 2011

Appl. No.:

13/173235

Inventors:

Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

A47B 81/06
F16F 7/00
G01S 15/00
H04R 1/20
H05K 5/00

US Classification:

181151, 181145, 181155, 181156, 181199, 181207, 367 99, 381337, 381338, 381353

Abstract:

An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide.

US Patent:

8295526, Oct 23, 2012

Filed:

Sep 21, 2010

Appl. No.:

12/886750

Inventors:

Kevin J. Bastyr - St. Francis WI, US
Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Hilmar Lehnert - Framingham MA, US
Robert Preston Parker - Westborough MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04R 1/20
H04R 9/06
H04R 1/02

US Classification:

381337, 381 89, 381333

Abstract:

A television includes a flat panel display device for presenting video images, a housing for supporting the flat panel display device, and a first acoustic volume located substantially (a) inside the housing, and (b) behind the display device. Two or more acoustic drivers are provided for acoustically energizing the acoustic volume. The drivers are positioned such that acoustic energy put into the acoustic volume from the drivers is substantially additive and vibrational energy from the drivers substantially cancels out.

US Patent:

8351621, Jan 8, 2013

Filed:

Mar 26, 2010

Appl. No.:

12/732696

Inventors:

Hilmar Lehnert - Framingham MA, US
Michael W. Stark - Acton MA, US
Joseph B. Gaalaas - Boston MA, US
Brian J. Gawronski - Framingham MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H03G 7/00

US Classification:

381106, 381 948, 333 14, 327309

Abstract:

A system for limiting the excursion of an audio speaker. The system may include first lowpass filter circuitry configured to receive a system input signal and to generate a first signal. The system may further include clipping circuitry configured between the first lowpass filter circuitry and the first combiner circuitry. The system may include first highpass filter circuitry configured to receive the system input signal and to generate a second signal. The system may include second lowpass filter circuitry configured to receive a combined output signal from the first combiner circuitry. The system may include allpass filter circuitry configured to receive the system input signal and to generate a fourth signal. The system may include second highpass filter circuitry configured to receive the fourth signal from the allpass filter circuitry. The second combiner circuitry may be configured to generate an excursion limiting output signal.

US Patent:

57147213, Feb 3, 1998

Filed:

Oct 29, 1996

Appl. No.:

8/739300

Inventors:

Brian J. Gawronski - Northboro MA
Gerald F. Caron - Andover MA

Assignee:

Bose Corporation - Framingham MA

International Classification:

H05K 500

US Classification:

181156

Abstract:

A loudspeaker enclosure has an inside volume. At least one port characterized by predetermined mass intercouples the inside volume and the region outside the enclosure. Each port has a smoothly flared input end within the inside volume and smoothly flared output end adjacent to the region outside the inside volume. The port defines a boundary between the acoustic mass therein and the inside volume, the boundary typically being defined by an ellipse, and in a particular form by the rotation of an ellipse about the axis of a port. Typically, the length of the port corresponds substantially to the major diameter of the ellipse.

US Patent:

51931184, Mar 9, 1993

Filed:

Feb 27, 1992

Appl. No.:

7/842743

Inventors:

Ernest Latham-Brown - Framingham MA
Brian J. Gawronski - Northboro MA
Peter W. Hubbe - Marlboro MA

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04B 100

US Classification:

381 86

Abstract:

A vehicle sound reproducing system including four driver units that radiate in at least the upper frequency range and are located in respective front and rear, left and right side panels. Also, disclosed is a nonlocalizable woofer module placed below a front seat of the vehicle.

US Patent:

50924249, Mar 3, 1992

Filed:

Dec 3, 1990

Appl. No.:

7/621531

Inventors:

William P. Schreiber - Ashland MA
Brian J. Gawronski - Northboro MA

Assignee:

Bose Corporation - Framingham MA

International Classification:

H05K 500

US Classification:

181145

Abstract:

A loudspeaker system has at least a first electroacoustical transducer having a vibratable diaphragm for converting an input electrical signal into a corresponding acoustic output signal. An enclosure is divided into at least first, second and third subchambers by at least first and second dividing walls. The first dividing wall supports and coacts with the first electrical transducer to bound the first and second subchambers. At least a first passive radiator intercouples the first and third subchambers. At least a second passive radiator intercouples at least one of the second and third subchambers with the region outside the enclosure. Each passive radiator is characterized by acoustic mass. Each subchamber is characterized by acoustic compliance. The acoustic mass and acoustic compliances coact to establish at least three spaced frequencies in the passband of the loudspeaker system at which the deflection characteristic of the vibratable diaphragm as a function of frequency has a minimum.