System and method for managing copyrighted electronic media

• US 5,765,152 A
• Filed: 10/13/1995
• Issued: 06/09/1998
• Est. Priority Date: 10/13/1995
• Status: Expired due to Term

• Current Assignee: Digimarc Corporation
• Original Assignee: The Trustees of Dartmounth College (Dartmouth College)
• Inventors: Erickson, John S.
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Corrielus, Jean M.
• Application Number:
  US08/543,161
• Time in Patent Office: 970 Days
• Field of Search: 395/600, 707/9, 701/1
• US Class Current: 1/1
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G06F 21/105 Arrangements for software license management or administration, e.g. for managing licenses at corporate level
• CPC Class Codes: G06F 2211/007 Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
• CPC Class Codes: G06F 2211/008 Public Key, Asymmetric Key, Asymmetric Encryption
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 63/105 Multiple levels of security

Abstract

Copyrighted electronic media are packaged in a secure electronic format, and registered on associated registration server, which serves to provide on-line licensing and copyright management for that media. Users are connected to the server, e.g., through a computer network or the Internet, to enable data transfers and to transact licenses to utilize the media. Packaged electronic media are typically created by an author or derivative user of the work. Once the packaged media is registered on the server, the media is made available for limited use and possible license through an authorization server. This limited use is specified within the minimum permissions data set assigned to each packaged media. Without a license, users are typically permitted to view the packaged media--through a system which unpackages the media--but cannot save or otherwise transfer the media without obtaining auxiliary permissions to do so from the authorization server. The electronic media is authenticated through digital signatures and optional encryption.

Claims

1. A method for managing copyrighted electronic media, comprising the steps of:

formatting media into a secure electronic container, the container including a digital representation of the media and a minimum permissions data set specifying the minimum authorized use of the media;

registering the electronic media on a server and assigning a registration identifier to the container, the server being connected for on-line data transfers with at least one computer;

transmitting licensing terms from the server to the computer in response to a request to license the media;

augmenting the permissions data set with auxiliary permissions when the computer indicates acceptance of the terms, the auxiliary permissions providing authorization to utilize the media beyond what is authorized in the minimum permissions data set; and

providing, through the server, selected transactional information, the information including at least one of (i) a number of registrations at the server and (ii) a quantitative indication of licensing revenues generated through the server.

2. A system for authorizing access to copyrighted electronic media, comprising an authorization server connected for data transfer between an internal memory and at least one external data processor, the server having

(A) means for determining selected information about the electronic media, the selected information including one or more terms that enable auxiliary uses of the media;

(B) relay means, responsive to a request signal by the data processor, for communicating the selected information to the data processor; and

(C) data comparison means for receiving response signals from the data processor and comparing the selected information with the response signals, the data comparison means generating an acceptance signal when the response signals correspond to at least a part of the selected information, indicating acceptance of one or more terms, and communicating the acceptance signal to the data processor to authorize access to the media in accord with the uses corresponding to the accepted terms.

3. A system according to claim 2, wherein the selected information comprises a digital representation of at least one of (i) a copyright ownership of the media, (ii) a set of licensing terms for the media for different user classifications, and (iii) revenue estimates about the media.

4. A system according to claim 2, further comprising memory means for storing the electronic media.

5. A system according to claim 4, further comprising electronic media stored within the memory means, the media being a digital representation of at least one of (i) literary work, (ii) musical work, (iii) dramatic work, (iv) choreographic work, (v) pictorial work, (vi) audiovisual work, (vii) a sound recording, and (viii) architectural work.

6. A system according to claim 5, wherein the media is encrypted.

7. A system according to claim 2, further comprising data header means for storing selected header information about the media, the header information being a digital representation of at least one of (i) a unique file format, (ii) a document format revision code, (iii) a creator application type, (iv) a media data type, and (v) a comment field.

8. A system according to claim 2, further comprising means for storing an unencrypted header for uniquely identifying the electronic media.

9. A system according to claim 2, further comprising means for storing a data identifier, the data identifier specifying selected registration information about the electronic media.

10. A system according to claim 9, wherein the data identifier comprises a digital representation of at least one of (i) a registration code uniquely identifying the server, and (ii) a registration number uniquely identifying the media in the internal memory.

11. A system according to claim 2, further comprising means for tagging an encrypted digital signature to the media, the signature providing subsequent authentication of the media.

12. A system according to claim 2, further comprising means for appending auxiliary permissions data to the media, the auxiliary permissions forming a digital representation that specifies the auxiliary uses to the media.

13. A system according to claim 12, wherein the uses comprise a license to the media.

14. A system according to claim 5, further comprising auxiliary permission means for appending use restrictions the media selectively, the use restrictions forming a digital representation that authorizes auxiliary uses of the media.

15. A system according to claim 2, further comprising a sourceworks extension module for storing a bibliographic record of the media, the bibliographic record forming a digital representation that specifies authorship information and the access restrictions associated with the media.

16. A system according to claim 2, further comprising access control means for withholding access authorization to a portion of the media, the access control means being responsive to the acceptance signal to remove access restrictions to the portion.

17. A method for authorizing data transfers of copyrighted digital media, comprising the steps of:

affixing content-specific permission information to the media, the permission information

specifying actions which are restricted and which require augmented access privileges to perform;

storing selected information about the electronic media on an authorization server connected for data transfer with at least one computer, the selected information including one or more terms that specify augmented access to the media;

electronically communicating selected information about the media to the computer in response to a request signal representing a request for augmented access to the media;

receiving response signals from the computer and comparing the selected information with the response signals, the response signals including a representation indicating acceptance of the terms; and

generating an acceptance signal when the response signals correspond to at least a part of the selected information, thereby authorizing augmented access to the media.

18. A method according to claim 17, wherein the step of communicating selected information comprises the step of communicating a digital representation of at least one of (i) a copyright ownership of the media, (ii) a set of licensing terms for the media for different user classifications, and (iii) revenue estimates about the media.

19. A method for maintaining an electronic bibliographic record of digital media, comprising the steps of:

opening an object container containing the digital media, the object container including a representation of the media, a data identifier of media, and data specifying minimum permissions required to access the media;

editing the digital media in an application environment; and

attaching the data identifier and minimum permissions data to the edited media into a sourceworks list, the sourceworks list thereby providing a bibliographic record of the media.

20. A method according to claim 19, wherein the container further includes auxiliary permissions data specifying subsequent use authorizations to the media, and further comprising the step of modifying the minimum permissions data such that the minimum permissions data and auxiliary permissions data are viewable to subsequent potential users of the media.

21. A computer network for managing original works of authorship, comprising:

means for affixing copyright information to a binary data element corresponding to an authored media;

means for affixing minimum permissions information to the data element, the permission information specifying a minimum authorized use of the data element;

a server for providing authorizations to the data element, the server including a control module for transacting licenses with one or more computers networked with the server; and

means for tagging the data element with auxiliary permissions, the auxiliary permissions specifying the maximum authorized use of the media.

22. A system according to claim 21, further comprising means for maintaining copyright information through derivative uses of the data element on the network.

23. A computer network according to claim 21, wherein the means for tagging comprises means for appending identifying information to the data element, the identifying information being selected from a digital representation of at least one of (i) a source of the data element, (ii) a registry of the data element, (iii) a format of the data, (iv) a transmission history of the data element;

(v) a derivative minimum permission data set for subsequent restricted access to the data on the network;

(vi) a digital signature of an author of the data element to provide an authenticity to the data element, (vii) a copyright ownership of the data item, (viii) licensing detail about the data element, and (ix) revenue detail about the data element.

24. A system for packaging electronic media within a secure digital document, comprising:

means for enclosing the media as a binary data object within a data container;

means for attaching identification data to the data container;

means for attaching minimum permissions data to the data container, the minimum permissions data specifying minimum uses authorized for the media without a license to the media;

the data container, identification data, and minimum permissions thereby forming the digital document; and

auxiliary permission means for appending use restrictions to the data container, the use restrictions forming a digital representation that extends the set of authorized uses available to a user of the media.

25. A system for packaging electronic media within a secure digital document, comprising:

means for enclosing the media as a binary data object within a data container;

means for attaching identification data to the data container;

means for attaching minimum permissions data to the data container, the minimum permissions data specifying minimum uses authorized for the media without a license to the media;

the data container, identification data, and minimum permissions thereby forming the digital document; and

data header means for storing selected header information about the media, the header information being a digital representation of at least one of (i) a unique file format, (ii) a document format revision code, (iii) a creator application type, (iv) a media type, and (v) a comment field.

26. A system for packaging electronic media within a secure digital document, comprising;

means for enclosing the media as a binary data object within a data container;

means for attaching identification data to the data container;

means for attaching minimum permissions data to the data container, the minimum permissions data specifying minimum uses authorized for the media without a license to the media;

the data container, identification data, and minimum permissions thereby forming the digital document; and

means for storing an unencrypted header for uniquely identifying the electronic media.

27. A system for packaging electronic media within a secure digital document, comprising:

means for enclosing the media as a binary data object within a data container;

means for attaching identification data to the data container;

means for attaching minimum permissions data to the data container, the minimum permissions data specifying minimum uses authorized for the media without a license to the media;

the data container, identification data, and minimum permissions thereby forming the digital document; and

means for storing a data identifier, the data identifier specifying selected registration information about the electronic media.

28. A system according to claim 27, wherein the data identifier comprises a digital representation of a registration code uniquely identifying a server, and a registration number uniquely identifying the media on the server.

29. A system for packaging electronic media within a secure digital document, comprising:

means for enclosing the media as a binary data object within a data container;

means for attaching identification data to the data container;

means for attaching minimum permissions data to the data container, the minimum permissions data specifying minimum uses authorized for the media without a license to the media;

the data container, identification data, and minimum permissions thereby forming the digital document; and

means for packaging the media from within one of (i) a stand-alone software module, (ii) a plug-in software module corresponding to an application environment that generated or modified the media, (iii) a program extension corresponding to an application environment which generated or modified the media, (iii) a software module integrated into an application environment by way of a source code library or linkable object code performing substantially similar functions.

30. A system for unpackaging electronic media configured within a secure electronic container, comprising:

means for recognizing permissions data attached to the media, the permissions data specifying one or more authorizations needed to electronically access the media; and

means for utilizing the media in a manner corresponding to the minimum permissions when a user has the requisite authorizations to do so.

31. A system according to claim 30, further comprising means for engaging an authorization server when the user does have the requisite authorizations.

32. A system according to claim 31, further comprising (A) means for electronically transacting a license with the server, and (B) means for receiving, from the server, auxiliary permission to utilize the media.

33. A system according to claim 30, further comprising means for interpreting a digital signature attached to the media, the digital signature providing an authentication of the media.

34. A method for protecting electronic media comprising the steps of:

packaging the electronic media within a secure electronic container by (i) attaching a data identifier to the media, and (ii) attaching data specifying minimum permissions required to use the media;

registering the container on a server connected for data transfer with at least one data processor;

transferring auxiliary permissions from the server to the data processor upon acceptance of licensing terms associated with the media; and

affixing use restrictions to the media selectively, the use restrictions forming a digital representation that is readable by the data processor to restrict subsequent access to the media by a second data processor connected on the network.