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(11)

EP 1 629 622 A2

(12)

(88) Date of publication A3: 02.06.2005 (43) Date of publication: 01.03.2006 Bulletin 2006/09 (21) Application number: 04752834.4 (22) Date of filing: 20.05.2004

(51) International Patent Classification (IPC):  H04L 1/24(1980.01) H04L 25/03(1974.07) H04L 1/20(1980.01) (86) International application number: PCT/US2004/015895 (87) International publication number: WO 2004/105334 (02.12.2004 Gazette 2004/49)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 20.05.2003 US 441461 31.03.2004 US 815604 18.05.2004 US 849264 (71) Applicants: RAMBUS INC. Los Altos, California 94022 (US) Garlepp, Bruno W. San Jose, CA 95129 (US) Chen, Fred F. San Francisco, CA 94118 (US) Ho, Andrew Palo Alto, CA 94303 (US) Stojanovic, Vladimir Stanford, CA 94305 (US)

(72) Inventors: GARLEPP, Bruno, W. San Jose, CA 95129 (US) CHEN, Fred, F. San Francisco, CA 94118 (US) HO, Andrew Palo Alto, CA 94303 (US) STOJANOVIC, Vladimir Stanford, CA 94305 (US) (74) Representative: Eisenführ, Speiser & Partner  Patentanwälte Rechtsanwälte Postfach 10 60 78 28060 Bremen 28060 Bremen (DE)