(19)

(11)

EP 1 794 888 A1

(12)

(43) Date of publication: 13.06.2007 Bulletin 2007/24 (21) Application number: 05799763.7 (22) Date of filing: 21.09.2005

(51) International Patent Classification (IPC):  H03M 1/10(2006.01) (86) International application number: PCT/US2005/034022 (87) International publication number: WO 2006/034415 (30.03.2006 Gazette 2006/13)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 21.09.2004 US 612109 P 02.05.2005 US 120439 (71) Applicant: Telegent Systems, Inc. Sunnyvale, CA 94085 (US)	(72) Inventors: SHENG, Samuel Los Gatos, CA 95032 (US) YUN, Weijie San Jose, CA 95120 (US) (74) Representative: Harris, Ian Richard  D Young & Co 120 Holborn London EC1N 2DY London EC1N 2DY (GB)