The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Nov. 12, 2010
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);
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);
Etymotic Research, Inc., Elk Grove Village, IL (US);
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.