Nova Patents
AT422282T

Watermark detection

Abstract

A method is disclosed for embedding auxiliary data in a signal. The data is encoded into the relative position or phase of one or more basic watermark patterns. This allows multi-bit data to be embedded by using only one or a few distinct watermark patterns.

Term

Term ended

Expired 2 March 2019, 7.6 years ago.

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64 members in 14 offices

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Priority claims
DocumentOfficeKindDate
98200656European Patent Office (EPO)A

Members64

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WO9945704A2World Intellectual Property Organization (WIPO)A2
WO9945705A2World Intellectual Property Organization (WIPO)A2
WO9945706A2World Intellectual Property Organization (WIPO)A2
WO9945707A2World Intellectual Property Organization (WIPO)A2
AU2437499AAustraliaA
WO9945704A3World Intellectual Property Organization (WIPO)A3
WO9945705A3World Intellectual Property Organization (WIPO)A3
WO9945706A3World Intellectual Property Organization (WIPO)A3
WO9945707A3World Intellectual Property Organization (WIPO)A3
EP0981900A2European Patent Office (EPO)A2
EP0981901A2European Patent Office (EPO)A2
EP0981902A2European Patent Office (EPO)A2
EP0981903A2European Patent Office (EPO)A2
ID23884AIndonesiaA
PL336841A1PolandA1
PL336845A1PolandA1
CN1266586AChinaA
CN1266587AChinaA
CN1269098AChinaA
CN1269099AChinaA
KR20010012213ARepublic of KoreaA
KR20010012214ARepublic of KoreaA
KR20010012245ARepublic of KoreaA
KR20010012250ARepublic of KoreaA
JP2001525151AJapanA
JP2001525152AJapanA
JP2001525153AJapanA
JP2002503431AJapanA
US6477431B1United States of AmericaB1
US6505223B1United States of AmericaB1
US2003086587A1United States of AmericaA1
RU2222114C2Russian FederationC2
CN1153456CChinaC
CN1156155CChinaC
BR9904848ABrazilA
CN1166187CChinaC
US6865589B2United States of AmericaB2
RU2249308C2Russian FederationC2
US2005089192A1United States of AmericaA1
CN1227899CChinaC
US6971011B1United States of AmericaB1
KR100611521B1Republic of KoreaB1
KR100614425B1Republic of KoreaB1
KR100648845B1Republic of KoreaB1
US7146394B2United States of AmericaB2
US7191334B1United States of AmericaB1
EP0981903B1European Patent Office (EPO)B1
AT381209TAustriaT
ATE381209T1AustriaT1
DE69937712D1GermanyD1
EP0981901B1European Patent Office (EPO)B1
AT388582TAustriaT
ATE388582T1AustriaT1
DE69938278D1GermanyD1
ES2297919T3SpainT3
DE69937712T2GermanyT2
EP0981902B1European Patent Office (EPO)B1
AT422282TThis recordAustriaT
ATE422282T1AustriaT1
DE69938278T2GermanyT2
DE69940375D1GermanyD1
JP4364948B2JapanB2
JP4364949B2JapanB2
JP4428728B2JapanB2