Global Patent Index - EP 1236022 A1

EP 1236022 A1 2002-09-04 - INTEGRATED SOUND TRANSMITTER AND RECEIVER, AND CORRESPONDING METHOD FOR MAKING SAME

Title (en)

INTEGRATED SOUND TRANSMITTER AND RECEIVER, AND CORRESPONDING METHOD FOR MAKING SAME

Title (de)

INTEGRIERTER SCHALLTRANSDUKTOR UND FABRIKATIONSVERFAHREN

Title (fr)

EMETTEUR ET RECEPTEUR ACOUSTIQUES INTEGRES, ET PROCEDE DE FABRICATION CORRESPONDANT

Publication

EP 1236022 A1 (FR)

Application

EP 00988876 A

Priority

  • FR 0003408 W
  • FR 9915410 A
  • FR 0003547 A

Abstract (en)

[origin: WO0142742A1] The invention concerns a transmitter and receiver comprising several transducers arranged opposite an opening of a housing. Each transducer comprises a deformable semiconductor membrane (MB) designed to be run through by an electric current and separated by a substrate zone (ZSB1, ZSB2) by a cavity enabling the membrane to be deformed under the effect of acoustic pressure of a Lorenz force.

IPC 1-7 (main, further and additional classification)

G01D 5/242; G01L 9/00; G01R 33/028

IPC 8 full level (invention and additional information)

H01L 23/28 (2006.01); G01D 5/242 (2006.01); G01L 9/00 (2006.01); G01S 7/521 (2006.01); G10K 9/13 (2006.01); H04R 7/00 (2006.01); H04R 9/00 (2006.01); H04R 19/00 (2006.01); H04R 31/00 (2006.01)

CPC (invention and additional information)

G10K 9/13 (2013.01); G01D 5/242 (2013.01); G01L 9/0042 (2013.01)

Citation (search report)

See references of WO 0142742A1

Designated contracting state (EPC)

AT BE CH CY DE FR GB IT LI

EPO simple patent family

WO 0142742 A1 20010614; EP 1236022 A1 20020904; FR 2801971 A1 20010608; FR 2801971 B1 20020215; JP 2003520466 A 20030702; US 2003052355 A1 20030320; US 6670686 B2 20031230

INPADOC legal status


2011-09-14 [18R] REFUSED

- Effective date: 20110505

2011-05-05 [REG DE R003] REFUSAL DECISION NOW FINAL

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DE FR GB IT LI

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020522

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI