Patent · US Active

Device and method for in-ear sound generation

US8630433B2 · kind B2 · utility

1Cited by

1References

14Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Heimo Guth · Freudenstadt, DE
Carsten Merkle · Schorndorf, DE

Key dates

Filing date	Mar 7, 2011
Grant date	Jan 14, 2014
Priority date	—
Expiry date	Nov 16, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R3/02
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A device for in-ear sound generation comprises a sound determining unit adapted to determine a first sound signal, a sound collecting unit exposed to the ear canal and adapted to collect a second sound signal, a sound correction determining unit adapted to determine a third sound signal, and a loudspeaker exposed to an ear canal and adapted to emit the third sound signal The third sound signal includes the first sound signal and a correction component, the correction component essentially corresponding to a weighted and phase-inverted signal. The phase-inverted signal is obtained by phase inversion from a difference signal essentially corresponding to a difference between the second sound signal and the first sound signal.

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