Patent · US Expired

Wide frequency band micromachined capacitive microphone/hydrophone and method

US6493288B2 · kind B2 · utility

23Cited by
5References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 30, 2000
Grant dateDec 10, 2002
Priority date
Expiry dateNov 30, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R1/44
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A wide frequency band micromachined microphone including a plurality of micromachined cells of the type including electrodes carried by a membrane supported above a common electrode with conductive lines interconnecting the electrodes is described. A method of operating a microphone array is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.