System and method for managing copyrighted electronic media

• US 7,398,556 B2
• Filed: 02/17/2004
• Issued: 07/08/2008
• Est. Priority Date: 10/13/1995
• Status: Expired due to Fees

• Current Assignee: Digimarc Corporation
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Erickson, John S.
• Primary Examiner(s): Barron, Jr.; Gilberto
• Assistant Examiner(s): CALLAHAN, PAUL E
• Application Number:
  US10/781,145
• Publication Number:
  US 20040167858A1
• Time in Patent Office: 1,603 Days
• Field of Search: 380/279, 380/201, 380/30, 705/51, 705/52, 705/56, 705/57, 705/59, 713/153, 713/171, 713/183, 713/184, 715/743, 715/741, 726/26, 726/27, 726/31, 726/51
• US Class Current: 726/27
• 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 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 2463/103 applying security measure for protecting copyright
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/105 Multiple levels of security
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/126 the source of the received data

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 of controlling use of a content object that includes text, the method including:

receiving data representing the object at a user device;

receiving at the user device an initial set of data representing usage rights associated with said object, the initial set of data defining a first set of rights that are permitted, and a second set of rights that are not permitted; and

upon receiving a request to perform a function using said content, checking said initial set of data representing usage rights to determine whether said function should be allowed, and

wherein a drag and drop function is among those that are not permitted.

2. The method of claim 1 wherein a modify function is among those that are not permitted.

3. The method of claim 2 wherein printing and saving functions are among those that are not permitted.

4. The method of claim 1 wherein the second set of rights is expressly defined in said data representing usage rights, rather that being inferred by their absence from the first set of rights.

5. The method of claim 1 wherein, if said check determines that said function should not be allowed, then engaging in a transaction with a remote server that results in receipt of revised data representing usage rights at the user device.

6. A method of controlling email comprising:

receiving data representing email at a user device;

receiving at the user device an initial set of data representing usage rights associated with the email, the initial set of data defining a first set of rights that are permitted; and

upon receiving a request to perform a function using the email, checking said initial set of data representing usage rights to determine whether the function should be allowed,

wherein a transmission function is among those that are not permitted, and

wherein upon a blocked transmission, querying a remote server to determine criteria for transmission, and if the criteria is met, receiving an updated set of data defining a second set of rights that are permitted, the second set of rights including transmission rights.