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(11)

EP 3 127 305 A1

(12)

(43) Date of publication: 08.02.2017 Bulletin 2017/06 (21) Application number: 15774176.0 (22) Date of filing: 27.03.2015

(51) International Patent Classification (IPC):  H04L 29/08(2006.01) H04L 9/32(2006.01) G06K 9/18(2006.01) H04L 12/58(2006.01) (86) International application number: PCT/US2015/023126 (87) International publication number: WO 2015/153373 (08.10.2015 Gazette 2015/40)

(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 Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 02.04.2014 US 201414243685 (71) Applicant: R. R. Donnelley & Sons Company Chicago, IL 60606 (US)	(72) Inventors: REEDY, Timothy J. Atlanta, Georgia 30328 (US) KECA, Steven A. St. Charles, Illinois 60174 (US) (74) Representative: Le Quéré, Hervé Yves et al Abyoo sprl Centre Monnet Avenue Jean Monnet, 1 1348 Louvain-la-Neuve 1348 Louvain-la-Neuve (BE)