05692059 is referenced by 205 patents and cites 3 patents.

The herein described invention relates to an ear mounted, in-the-ear compound microphone system which simultaneously uses both an accelerometer, or vibration transducer, to sense bone conducted low speech frequencies and a microphone with controlled frequency response to sense airborne high speech frequencies within the ear canal. It combines the speech spectrum components picked up by the two transducers into a single composite audio signal with improved human speech frequency response characteristics. It simultaneously demonstrates significantly reduced sensitivity to surrounding background noise and provides measurable hearing protection for the user. Through adjustment and alteration of the supporting electronic circuitry, the operating characteristics and performance of the compound microphone can be changed. The in-the-ear microphone system can be used with a two-way speech system by installing a miniature earphone element within a common housing with the microphone.

Title
Two active element in-the-ear microphone system
Application Number
8/393839
Publication Number
5692059
Application Date
February 24, 1995
Publication Date
November 25, 1997
Inventor
Frederick M Kruger
37 Somerset Dr., Comack, 11725-1636
NY, US
Agent
Greer Burn & Crain
IPC
H04R 25/00
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