Global Patent Index - EP 1075775 A1

EP 1075775 A1 2001-02-14 - METHOD AND APPARATUS FOR LOCATING BENDING WAVE TRANSDUCER MEANS

Title (en)

METHOD AND APPARATUS FOR LOCATING BENDING WAVE TRANSDUCER MEANS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ORTSBESTIMMUNG VON BIEGEWELLEN-WANDLERMITTELN

Title (fr)

PROCEDE ET DISPOSITIF DE PLACEMENT DE MOYENS TRANSDUCTEURS D'ONDES DE FLEXION

Publication

EP 1075775 A1 (EN)

Application

EP 99918081 A

Priority

  • GB 9901101 W
  • GB 9808962 A
  • GB 9811959 A

Abstract (en)

[origin: WO9956497A1] Method and apparatus for determining beneficial site(s) for locating bending wave transducer means in operative association with member(s) relying for acoustic operation on resonant modes of bending wave action in such member(s). The method comprises investigative excitation of acoustically relevant bending wave action in a said member; and systematic assessment of measurable effect(s) related to such excited bending wave action and corresponding said acoustic action, which effects vary according to bending wave transducer location areally of said member concerned. Investigative excitation is by application of acoustic energy to said member concerned so as to induce said acoustically relevant bending wave action with bending wave transducer means selectively operatively associatable areally locally of said member to respond to its bending wave action and said measurable effect(s) being of signals from said transducer means, or by bending wave transducer means selectively operatively associatable areally locally of said member concerned so as to induce said acoustically relevant bending wave action.

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

H04R 7/06; H04R 29/00

IPC 8 full level (invention and additional information)

H04R 7/06 (2006.01); H04R 7/04 (2006.01); H04R 29/00 (2006.01)

CPC (invention and additional information)

H04R 29/001 (2013.01); H04R 7/045 (2013.01); H04R 2499/13 (2013.01)

Citation (search report)

See references of WO 9956497A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

EPO simple patent family

WO 9956497 A1 19991104; AR 019105 A1 20011226; AU 3613099 A 19991116; AU 769204 B2 20040122; BG 104864 A 20010430; BR 9910082 A 20001226; CA 2330303 A1 19991104; CN 1298621 A 20010606; CO 4890894 A1 20000228; EA 200001113 A1 20010827; EP 1075775 A1 20010214; HU 0103317 A2 20020128; ID 26889 A 20010215; IL 139039 D0 20011125; JP 2002513262 A 20020508; MX PA00010479 A 20020604; NO 20005392 A 20001227; NO 20005392 D0 20001026; NZ 507081 A 20030131; PL 343767 A1 20010910; SK 16182000 A3 20010611; TR 200003154 T2 20010321; TW 468356 B 20011211; YU 66400 A 20020919

INPADOC legal status


2007-12-07 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1030713

2005-05-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20041102

2002-02-20 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020108

2001-02-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001114

2001-02-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2001-02-14 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: RO PAYMENT 20001114;SI PAYMENT 20001114