(19)
(11) EP 1 162 600 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.10.2002 Bulletin 2002/43

(43) Date of publication A2:
12.12.2001 Bulletin 2001/50

(21) Application number: 01202131.7

(22) Date of filing: 01.06.2001
(51) International Patent Classification (IPC)7: G10K 11/178, H04R 1/28
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.06.2000 US 209753 P
16.05.2001 US 868414

(71) Applicant: SIEMENS CANADA LIMITED
Tilbury, Ontario N0P 2LO (CA)

(72) Inventors:
  • McWilliam, Richard D.
    Shedden, Ontario N0P 2E0 (CA)
  • McLean, Ian R.
    Chatham, Ontario N7M 3V6 (CA)

(74) Representative: Humphrey-Evans, Edward John et al
Siemens Shared Services Limited, I.P.D, Siemens House, Oldbury
Bracknell, Berkshire RG12 8FZ
Bracknell, Berkshire RG12 8FZ (GB)

   


(54) Active control of automotive induction noise


(57) An air induction system comprises an air induction body (10), a speaker (14) with a first diaphragm (18) disposed about the air induction body, and a second diaphragm (22) spaced from the first diaphragm. A signal is generated from the first diaphragm and transmitted to the second diaphragm. The second diaphragm generates a noise attenuating sound.






Search report