Global Patent Index - EP 0737022 B1

EP 0737022 B1 20000531 - Device for noise reduction

Title (en)

Device for noise reduction

Title (de)

Einrichtung zur Verminderung von Störschall

Title (fr)

Dispositif de réduction du bruit

Publication

EP 0737022 B1 (DE)

Application

EP 96104496 A

Priority

DE 19513111 A

Abstract (en)

[origin: EP0737022A2] The noise compensation device has a microphone (5) detecting the background noise, coupled to a compensation circuit (6) providing a signal for an electroacoustic transducer (7) used for noise compensation. The microphone has a compensation element (9) extending across its sound wave entry aperture (8), for reducing the effect of sound reflection at the ear. Pref. the microphone and the electroacoustic transducer face in the same direction and lie along a common centre axis.

IPC 1-7

H04R 3/00

IPC 8 full level

H04R 3/00 (2006.01)

CPC (source: EP)

H04R 3/00 (2013.01)

Designated contracting state (EPC)

CH DE FR GB LI NL SE

DOCDB simple family (publication)

EP 0737022 A2 19961009; EP 0737022 A3 19970730; EP 0737022 B1 20000531; DE 19513111 A1 19961010; US 6122383 A 20000919

DOCDB simple family (application)

EP 96104496 A 19960321; DE 19513111 A 19950407; US 63071796 A 19960408