×

Bone conductive ear microphone and method

  • US 5,280,524 A
  • Filed: 05/11/1992
  • Issued: 01/18/1994
  • Est. Priority Date: 05/11/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. An ear piece device configured for being supported at the ear and providing a microphone which is sensitive only to sounds conducted within the skull of the user, said ear piece including:

  • a housing which is configured at one end to fit snugly at the ear canal of the user but not extend into the ear canal, and includes means for passing sound waves into the housing, said housing being constructed of material which is sound conductive;

    a microphone element coupled within the housing;

    said microphone element including an inertial platform having sufficient inertial means to substantially resist movement associated with the housing by reason of audio vibration and which is cantilevered at one end within the housing and includes signal means for generating a signal representing vibrations transferred into the platform associated with the audio vibrations in the housing, wherein the inertial platform is suspended inside the housing but in a position which is not placed within the ear canal of the user during operation;

    said signal means being coupled to electrical circuitry for converting relative movement of the inertial platform with respect to the housing into audio signal suitable for processing in an audio circuit.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×