CA2467998C - Systeme de suivi de l'utilisation de contenu electronique par l'utilisateur final - Google Patents

Systeme de suivi de l'utilisation de contenu electronique par l'utilisateur final Download PDF

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Publication number
CA2467998C
CA2467998C CA002467998A CA2467998A CA2467998C CA 2467998 C CA2467998 C CA 2467998C CA 002467998 A CA002467998 A CA 002467998A CA 2467998 A CA2467998 A CA 2467998A CA 2467998 C CA2467998 C CA 2467998C
Authority
CA
Canada
Prior art keywords
key
content
data
decrypting
encrypted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002467998A
Other languages
English (en)
Other versions
CA2467998A1 (fr
Inventor
John Dorak
Edgar Downs
George Gregory Gruse
Marco Hurtado
Christopher Lehman
Jeffrey Lotspiech
Cesar Medina
Kenneth Milsted
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Level 3 Communications LLC
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/133,519 external-priority patent/US6226618B1/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2467998A1 publication Critical patent/CA2467998A1/fr
Application granted granted Critical
Publication of CA2467998C publication Critical patent/CA2467998C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CA002467998A 1998-08-13 1999-08-12 Systeme de suivi de l'utilisation de contenu electronique par l'utilisateur final Expired - Lifetime CA2467998C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US09/133,519 US6226618B1 (en) 1998-08-13 1998-08-13 Electronic content delivery system
US09/152,756 US6574609B1 (en) 1998-08-13 1998-09-14 Secure electronic content management system
US09/152,756 1998-09-22
US09/133,519 1998-10-22
US09/177,096 1998-10-22
US09/177,096 US6389538B1 (en) 1998-08-13 1998-10-22 System for tracking end-user electronic content usage
CA002338414A CA2338414C (fr) 1998-08-13 1999-08-12 Systeme de gestion de contenu electronique securise

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002338414A Division CA2338414C (fr) 1998-08-13 1999-08-12 Systeme de gestion de contenu electronique securise

Publications (2)

Publication Number Publication Date
CA2467998A1 CA2467998A1 (fr) 2000-02-24
CA2467998C true CA2467998C (fr) 2006-04-25

Family

ID=27384438

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002467998A Expired - Lifetime CA2467998C (fr) 1998-08-13 1999-08-12 Systeme de suivi de l'utilisation de contenu electronique par l'utilisateur final
CA2467974A Expired - Fee Related CA2467974C (fr) 1998-08-13 1999-08-12 Systeme pour suivre l'utilisation de contenus electroniques par un utilisateur final
CA002338414A Expired - Fee Related CA2338414C (fr) 1998-08-13 1999-08-12 Systeme de gestion de contenu electronique securise

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2467974A Expired - Fee Related CA2467974C (fr) 1998-08-13 1999-08-12 Systeme pour suivre l'utilisation de contenus electroniques par un utilisateur final
CA002338414A Expired - Fee Related CA2338414C (fr) 1998-08-13 1999-08-12 Systeme de gestion de contenu electronique securise

Country Status (1)

Country Link
CA (3) CA2467998C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7860964B2 (en) 2001-09-28 2010-12-28 Level 3 Communications, Llc Policy-based content delivery network selection
US7953888B2 (en) 1999-06-18 2011-05-31 Level 3 Communications, Llc On-demand overlay routing for computer-based communication networks
US8924466B2 (en) 2002-02-14 2014-12-30 Level 3 Communications, Llc Server handoff in content delivery network
US8930538B2 (en) 2008-04-04 2015-01-06 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)
US9203636B2 (en) 2001-09-28 2015-12-01 Level 3 Communications, Llc Distributing requests across multiple content delivery networks based on subscriber policy
US10218806B2 (en) 2008-04-04 2019-02-26 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2443503A1 (fr) 2001-03-01 2002-09-12 Andy Vilcauskas Systeme de droit d'auteur audio
US10924573B2 (en) 2008-04-04 2021-02-16 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)
CA2848902A1 (fr) * 2012-05-24 2013-11-28 Na In KIM Projets de conception de type exten
US11509637B2 (en) * 2018-12-27 2022-11-22 Silver Rocket Data Technology (Shanghai) Co., Ltd. Data transmission method, system and platform using blockchain, and storage medium
CN111641852B (zh) * 2020-05-15 2023-05-12 上海幕革科技有限公司 一种对影片内容进行二次打包的方法及系统

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7953888B2 (en) 1999-06-18 2011-05-31 Level 3 Communications, Llc On-demand overlay routing for computer-based communication networks
US8599697B2 (en) 1999-06-18 2013-12-03 Level 3 Communications, Llc Overlay network
US7860964B2 (en) 2001-09-28 2010-12-28 Level 3 Communications, Llc Policy-based content delivery network selection
US8645517B2 (en) 2001-09-28 2014-02-04 Level 3 Communications, Llc Policy-based content delivery network selection
US9203636B2 (en) 2001-09-28 2015-12-01 Level 3 Communications, Llc Distributing requests across multiple content delivery networks based on subscriber policy
US8924466B2 (en) 2002-02-14 2014-12-30 Level 3 Communications, Llc Server handoff in content delivery network
US9167036B2 (en) 2002-02-14 2015-10-20 Level 3 Communications, Llc Managed object replication and delivery
US9992279B2 (en) 2002-02-14 2018-06-05 Level 3 Communications, Llc Managed object replication and delivery
US8930538B2 (en) 2008-04-04 2015-01-06 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)
US10218806B2 (en) 2008-04-04 2019-02-26 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)

Also Published As

Publication number Publication date
CA2338414C (fr) 2006-05-09
CA2467974C (fr) 2010-03-30
CA2338414A1 (fr) 2000-02-24
CA2467998A1 (fr) 2000-02-24
CA2467974A1 (fr) 2000-02-24

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MKEX Expiry

Effective date: 20190812