Global Patent Index - EP 1206161 A1

EP 1206161 A1 20020515 - Microphone array with self-adjusting directivity for handsets and hands free kits

Title (en)

Microphone array with self-adjusting directivity for handsets and hands free kits

Title (de)

Mikrofonanordung mit selbstanpassender Richtcharakteristik für Telefonhandapparate und Freisprechanlagen

Title (fr)

Réseau de microphones avec une directivité auto-réglable pour des combinés téléphoniques et dispositifs mains libres

Publication

EP 1206161 A1 20020515 (EN)

Application

EP 00124648 A 20001110

Priority

EP 00124648 A 20001110

Abstract (en)

The present invention proposes a transducer arrangement for a communication device, comprising an array of microphones (10) for receiving acoustic signals (11) from a sound source (12) and transducing received acoustic signals in electrical signals, and a processing means (13) for combining signals obtained from the microphones (10) of the array on the basis of differences in the signals related to the position of a sound source so that the directivity of the array of microphones is aligned towards the sound source. <IMAGE>

IPC 1-7

H04R 3/00; H04R 1/40

IPC 8 full level

H04R 1/40 (2006.01); H04R 3/00 (2006.01)

CPC (source: EP)

H04R 1/406 (2013.01); H04R 3/005 (2013.01)

Citation (search report)

  • [XY] DE 19818611 C1 19990916 - DEUTSCHE TELEKOM AG [DE]
  • [YA] WO 9846043 A2 19981015 - INTERKOM ELECTRONIC KOCK & MRE [DE], et al
  • [XY] PATENT ABSTRACTS OF JAPAN vol. 013, no. 350 (E - 800) 7 August 1989 (1989-08-07)
  • [XY] OMOLOGO M SVAIZER P: "ACOUSTIC EVENT LOCALIZATION USING A CROSSPOWER-SPECTRUM PHASE BASEDTECHNIQUE", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, ANDSIGNAL PROCESSING. (ICASSP),US,NEW YORK, IEEE, vol. CONF. 19, 19 April 1994 (1994-04-19), pages II - 273-II-276, XP000528478, ISBN: 0-7803-1776-9
  • [Y] ELKO G W ET AL: "A STEERABLE AND VARIABLE FIRST-ORDER DIFFERENTIAL MICROPHONE ARRAY", PLENARY, EXPERT SUMMARIES, SPECIAL, AUDIO, UNDERWATER ACOUSTICS, VLSI.MUNICH, APR. 21 - 24, 1997,LOS ALIMITOS,CA: IEEE COMP. SOC. PRESS,US, 21 April 1997 (1997-04-21), pages 223 - 226, XP000789158, ISBN: 0-8186-7920-4
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 273 (E - 0940) 13 June 1990 (1990-06-13)

Designated contracting state (EPC)

AT

DOCDB simple family (publication)

EP 1206161 A1 20020515

DOCDB simple family (application)

EP 00124648 A 20001110