Patent · US Active

Loudspeaker position estimation

US8279709B2 · kind B2 · utility

315Cited by

3References

19Claims

0Family size

Assignee

Bang & Olufsen A/S · DK

Inventors

Sylvain J. Choisel · Palo Alto, US
Geoffrey Martin · Scotts Valley, US
Michael Hlatky · Berlin, DE

Key dates

Filing date	Nov 5, 2007
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Apr 2, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2400/01
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to an automated estimation of the position (co-ordinates) of a set of loudspeakers in a ioom Based on measured impulse responses the distances between each pair of loudspeakers are estimated, thereby forming a distance matrix, and the resultant distance matrix is used by a multidimensional scaling (MDS) algorithm to estimate the co-ordinates of each individual loudspeaker An improved co-ordinate estimation can, if desired, be derived by utilizing the stress values provided by the MDS algorithm.

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