Gregory A Flamme

US Patent:

8322222, Dec 4, 2012

Filed:

Nov 12, 2010

Appl. No.:

12/945472

Inventors:

Jack Goldberg - San Diego CA, US
Gregory A. Flamme - Portage MI, US
Dana S. Helmink - Elk Grove Village IL, US
Mead C. Killion - Elk Grove Village IL, US

Assignee:

Etymotic Research, Inc. - Elk Grove Village IL

International Classification:

G01H 11/06
H04R 29/00
H01R 13/66

US Classification:

73647, 73642, 381 58, 381382, 43962001

Abstract:

A noise dosimeter with capability to rapidly predict noise exposure over an extended time period based on a measurement of short duration. Either an acoustic or an electrical earphone adapter provides a convenient means to connect the noise dosimeter to an external sound source. A direct input jack operable to receive at least one audio signal provides a signal to an RMS detector, which provides a DC signal to a two-stage amplifier circuit. The outputs of the amplifiers are provided to a processor having multiple A/D channels. The processor calculates accumulated noise doses and drives a display, which in one embodiment includes a panel of light-emitting diodes. In one embodiment, the dosimeter includes functionality for control of external devices such as sound boards.

US Patent:

20070180915, Aug 9, 2007

Filed:

Dec 20, 2006

Appl. No.:

11/643328

Inventors:

Jack Goldberg - San Diego CA, US
Gregory Flamme - Portage MI, US
Dana Helmink - Elk Grove Village IL, US
Mead Killion - Elk Grove Village IL, US

International Classification:

H04R 29/00
G01H 11/06

US Classification:

073647000, 073001820, 381058000

Abstract:

A personal noise dosimeter having functionality for increasing the dynamic range of the device. A microphone provides a signal to an RMS detector, which provides a DC signal to a two-stage amplifier circuit. The outputs of the amplifiers are provided to a processor having multiple A/D channels. The processor calculates accumulated noise doses and drives a display, which in one embodiment includes a panel of light-emitting diodes. A current source injects current into the output of the RMS detector to reduce performance degradation. Functionality detects and accounts for voltage offsets in the dosimeter. The microphone is turned off during offset determination. In one embodiment, the dosimeter includes functionality for control of external devices such as sound boards.

US Patent:

20070186656, Aug 16, 2007

Filed:

Jan 17, 2007

Appl. No.:

11/654419

Inventors:

Jack Goldberg - San Diego CA, US
Gregory Flamme - Portage MI, US
Dana Helmink - Elk Grove Village IL, US
Mead Killion - Elk Grove Village IL, US

International Classification:

G01H 11/06
H04R 1/10

US Classification:

073647000, 381074000, 181130000, 073642000

Abstract:

A noise dosimeter with capability to rapidly predict noise exposure over an extended time period based on a measurement of short duration. Either an acoustic or an electrical earphone adapter provides a convenient means to connect the noise dosimeter to an external sound source. A direct input jack operable to receive at least one audio signal provides a signal to an RMS detector, which provides a DC signal to a two-stage amplifier circuit. The outputs of the amplifiers are provided to a processor having multiple A/D channels. The processor calculates accumulated noise doses and drives a display, which in one embodiment includes a panel of light-emitting diodes. In one embodiment, the dosimeter includes functionality for control of external devices such as sound boards.