Patent · US Active

Loudspeaker with port comprising a particle filter

US9137593B2 · kind B2 · utility

1Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 2012
Grant dateSep 15, 2015
Priority date—
Expiry dateMay 3, 2032

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R2499/11
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A loudspeaker in which a magnetic particle filter is provided in the vicinity of a sound outlet port.

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