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EP 2 710 728 A1

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(43) Date of publication: 26.03.2014 Bulletin 2014/13 (21) Application number: 12727440.5 (22) Date of filing: 18.05.2012

(51) International Patent Classification (IPC):  H03F 1/02(2006.01) H03F 1/26(2006.01) H03F 1/56(2006.01) H03F 3/45(2006.01) H03F 1/22(2006.01) H03F 1/30(2006.01) H03F 3/195(2006.01) H03F 3/72(2006.01) (86) International application number: PCT/IB2012/052499 (87) International publication number: WO 2012/156946 (22.11.2012 Gazette 2012/47)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 19.05.2011 GB 201108444 19.05.2011 US 201113111423 02.09.2011 GB 201115183 02.09.2011 US 201113224430 12.10.2011 GB 201117606 12.10.2011 US 201113271630 01.12.2011 US 201113308772 (71) Applicant: Renesas Mobile Corporation Tokyo 100-0004 (JP)

(72) Inventors: HEIKKINEN, Jari Johannes FIN-02320 Espoo (FI) RIEKKI, Jonne Juhani FIN-02230 Espoo (FI) KAUKOVUORI, Jouni Kristian FIN-01690 Vantaa (FI) (74) Representative: EIP  Fairfax House 15 Fulwood Place London WC1V 6HU London WC1V 6HU (GB)