Nova Patents
DE60117618D1

Initial viewing period for authorization of multimedia content

Abstract

According to one embodiment of the invention, a free preview of a program can be provided to client computers in a multicasting system. This can allow viewers in the multicasting system to view a first portion of the program before deciding whether to order the program content. According to another embodiment, various distribution methods can be accomplished using encryption keys to distribute program content. According to yet another embodiment, an initial viewing period can be provided to allow negotiation of the encryption keys. According to another embodiment, rules and conditions for providing content in a multicasting environment can be utilized.

Term

Term ended

Expired 26 October 2021, 4.9 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

70 members in 13 offices

This recordMember, by publication datePriority claim3 more offices are in the list below

Priority claims8

Priority claims
DocumentOfficeKindDate
24392500United States of AmericaP
24392500United States of AmericaP
0151051United States of AmericaW
0151051United States of AmericaW
243925P–––
PCTUS0151051–––
US20000243925P–––
WO2001US51051–––

Members70

Family members, oldest first
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US2002051539A1United States of AmericaA1
US2002076050A1United States of AmericaA1
US2002083438A1United States of AmericaA1
US2002087971A1United States of AmericaA1
CA2435316A1CanadaA1
WO02058398A2World Intellectual Property Organization (WIPO)A2
CA2427136A1CanadaA1
WO02062054A2World Intellectual Property Organization (WIPO)A2
CA2425159A1CanadaA1
WO02063850A2World Intellectual Property Organization (WIPO)A2
CA2426159A1CanadaA1
WO02069567A2World Intellectual Property Organization (WIPO)A2
US2002170053A1United States of AmericaA1
US2002172366A1United States of AmericaA1
US2002172368A1United States of AmericaA1
US2002174366A1United States of AmericaA1
CA2427181A1CanadaA1
WO02096024A2World Intellectual Property Organization (WIPO)A2
EP1274243A2European Patent Office (EPO)A2
CA2452618A1CanadaA1
WO03005724A2World Intellectual Property Organization (WIPO)A2
AU2002354779A1AustraliaA1
WO02069567A3World Intellectual Property Organization (WIPO)A3
WO02058398A3World Intellectual Property Organization (WIPO)A3
WO02063850A3World Intellectual Property Organization (WIPO)A3
TW540245BTaiwan Province of ChinaB
KR20030060923ARepublic of KoreaA
WO02096024A3World Intellectual Property Organization (WIPO)A3
EP1329072A2European Patent Office (EPO)A2
TW545052BTaiwan Province of ChinaB
EP1334583A2European Patent Office (EPO)A2
TW548983BTaiwan Province of ChinaB
TW550949BTaiwan Province of ChinaB
EP1274243A3European Patent Office (EPO)A3
WO02062054A3World Intellectual Property Organization (WIPO)A3
EP1352496A2European Patent Office (EPO)A2
EP1354476A2European Patent Office (EPO)A2
WO02096024A9World Intellectual Property Organization (WIPO)A9
KR20030094216ARepublic of KoreaA
EP1371205A2European Patent Office (EPO)A2
KR20040005848ARepublic of KoreaA
KR20040007409ARepublic of KoreaA
CN1471773AChinaA
WO03005724A3World Intellectual Property Organization (WIPO)A3
WO02062054A9World Intellectual Property Organization (WIPO)A9
CN1483263AChinaA
EP1415472A2European Patent Office (EPO)A2
TW589896BTaiwan Province of ChinaB
MXPA04000131AMexicoA
CN1529987AChinaA
JP2004529538AJapanA
JP2004533735AJapanA
CN1633794AChinaA
US2005157877A1United States of AmericaA1
US6978022B2United States of AmericaB2
TWI247513BTaiwan Province of ChinaB
BR0206590ABrazilA
EP1371205B1European Patent Office (EPO)B1
AT319256TAustriaT
ATE319256T1AustriaT1
CN1251442CChinaC
DE60117618D1This recordGermanyD1
US7076661B2United States of AmericaB2
US7080397B2United States of AmericaB2
US2006159264A1United States of AmericaA1
EP1274243B1European Patent Office (EPO)B1
DE60214799D1GermanyD1
DE60117618T2GermanyT2
US7257227B2United States of AmericaB2
DE60214799T2GermanyT2