(19)
(11) EP 1 247 421 A1

(12)

(43) Date of publication:
09.10.2002 Bulletin 2002/41

(21) Application number: 00905530.2

(22) Date of filing: 04.01.2000
(51) International Patent Classification (IPC)7H04R 3/00
(86) International application number:
PCT/US0000/103
(87) International publication number:
WO 0105/0810 (12.07.2001 Gazette 2001/28)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(71) Applicant: American Technology Corporation
San Diego, CA 92128 (US)

(72) Inventors:
  • NORRIS, Joseph, O.
    Ramona, CA 92065 (US)
  • CROFT, James, J., III
    Poway, CA 92064 (US)
  • SELFRIDGE, Alan, Robert
    Los Gatos, CA 95030 (US)
  • KHURI-YAKUB, Pierre
    Palo Alto, CA 94306-3823 (US)

(74) Representative: Wombwell, Francis 
Potts, Kerr & Co.15, Hamilton Square
BirkenheadMerseyside CH41 6BR
BirkenheadMerseyside CH41 6BR (GB)

   


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