Patent · US Active

Method for using a mobile device equipped with at least two microphones for determining the direction of loudspeakers in a setup of a surround sound system

US10104489B2 · kind B2 · utility

1Cited by

0References

17Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Michael Arnold · Altwarmbüchen, DE
Michael Drexler · Gehrden, DE
Florian Keiler · Hannover, DE

Key dates

Filing date	Dec 15, 2016
Grant date	Oct 16, 2018
Priority date	—
Expiry date	Dec 15, 2036

Classification

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

Abstract

A smartphone having two microphones is used for determining the direction of a loudspeaker in a surround system setup. This is performed using smartphone rotation in azimuth and polar angle direction while capturing in its microphones a test signal from a current one of the loudspeakers. From the microphone signals a corresponding TDOA value is calculated, and the smartphone is rotated until that TDOA value is nearly zero, resulting in a loudspeaker direction information.

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