Patent · US Expired

Speaker box

US6478108B1 · kind B1 · utility

9Cited by
7References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 15, 2000
Grant dateNov 12, 2002
Priority date
Expiry dateAug 15, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R1/345
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

For a selective sound propagation pattern that has an especially high directivity, including in the bass frequency region, there is inventively provided a loudspeaker box (1) with a housing (2) and at least one loudspeaker (4) with chassis (6) which is surrounded by a housing wall (8) in such a way that in the low frequency region the rear side and front side sound of the loudspeaker (4) overlay themselves with a sound increase in a preferred direction.

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