Electronic earplug for monitoring and reducing wideband...

Details Electronic earplug for monitoring and reducing wideband... Electronic earplug for monitoring and reducing wideband...

2007-10-30

2007-10-30

Ensey, Brian (Department: 2615)

Electrical audio signal processing systems and devices

Hearing protectors, electrical

C381S317000

Reexamination Certificate

active

11122739

ABSTRACT:
An electronic earplug for wideband control of pressures at the tympanic membrane is presented. A unique methodology of determining effective component placement inside an earplug that provides acoustic isolation between the ambient noise and tympanic membrane is explained. Methods for providing accurate dosimetry and improved active control result from the unique earplug design process, leading to very wideband active noise reduction at the tympanic membrane.

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K. Buck, et al. “An Active Noise reduction Ear Plug with Driven Feedback Loop.”, Aug. 19, 2002-Aug. 21, 2002.
Phillipe Herzog, “Electroacoustic Design of An Active Earplug”, Aug. 19, 2002-Aug. 21, 2001.
Thomas R. Harley, “Digital Active Noise reduction Ear Plugs”, Sep. 1994.

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