(19)
(11) EP 1 371 261 A2

(12)

(88) Date of publication A3:
10.07.2003

(43) Date of publication:
17.12.2003 Bulletin 2003/51

(21) Application number: 01952715.9

(22) Date of filing: 13.07.2001
(51) International Patent Classification (IPC)7H04R 1/10
(86) International application number:
PCT/US0122/121
(87) International publication number:
WO 0200/7477 (24.01.2002 Gazette 2002/04)
(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: 13.07.2000 US 615168
03.08.2000 US 223291 P
25.08.2000 US 228129 P
05.09.2000 US 230217 P
02.02.2001 US 265988 P
07.06.2001 US 878151

(71) Applicant: Matech, Inc.
Portland, OR (US)

(72) Inventors:
  • WHILE, Donald, R.
    Beaverton, OR 97006 (US)
  • MASUDA, Masahisa
    Westlinn, OR 97068 (US)

(74) Representative: Nicholls, Michael John 
J.A. KEMP & CO.,14, South Square,Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) AUDIO HEADSET