Patent · US Active

Waveguide electroacoustical transducing

US8351629B2 · kind B2 · utility

5Cited by

75References

30Claims

0Family size

Inventors

Robert Preston Parker · Westborough, US
Eric J. Freeman · Sutton, US
Jeffrey Hoefler · Framingham, US

Key dates

Filing date	Feb 21, 2008
Grant date	Jan 8, 2013
Priority date	—
Expiry date	Nov 5, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04R1/2857
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A loudspeaker assembly, including an acoustic waveguide; an acoustic driver mounted in the waveguide so that a first surface radiates sound waves into the waveguide so that the sound waves are radiated from the waveguide; and an acoustic volume acoustically coupled to the acoustic waveguide for increasing the amplitude of the sound waves radiated from the acoustic waveguide.

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