STATUTORY LICENSE RESTRICTED DIGITAL MEDIA PLAYBACK ON PORTABLE DEVICES

• US 20110004669A1
• Filed: 03/03/2010
• Published: 01/06/2011
• Est. Priority Date: 08/23/2004
• Status: Active Grant

• Current Assignee: Sony Interactive Entertainment LLC (Sony Group Corp.)
• Original Assignee: Serenade Systems Inc.
• Inventors: HSU, Michael, NAVAR, Murgesh, PURANIK, Rajiv, YRUSKI, Audrey
• Granted Patent: US 8,763,157 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• 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 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: H04B 1/3827 Portable transceivers
• CPC Class Codes: H04L 63/0457 wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption cryptographic mechanisms or cryptographic arrangements for stream encryption H04L9/065
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 63/107 wherein the security policies are location-dependent, e.g. entities privileges depend on current location or allowing specific operations only from locally connected terminals
• CPC Class Codes: H04L 65/1059 End-user terminal functionalities specially adapted for real-time communication
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 9/0894 Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage

Abstract

Systems and methods are described for, e.g., providing a statutory audio content service on a portable device that complies with the provisions of the Digital Millennium Copyright Act (DMCA). The user can select a playlist subject to DMCA restrictions but cannot access individual items. Content playback, including skipping of content, is restricted to enforce relevant DMCA provisions. Encryption used to implement digital rights management (DRM) may be modified to enforce such content play rules or, alternatively, an additional layer of encryption may be imposed. Limitations on playback are stored along with the playlist structure in a form that is protected against modification. Information logging content playback is maintained in protected form to be uploaded and relayed to the service provider for the purpose of calculating royalty payments.

Claims

1. A method for providing content on a portable device, said method comprising:

transferring a playlist to said portable device, said playlist comprising information associating audio content items with said playlist and rule information setting constraints on playing of said audio content items;

transferring said audio content items to said portable device; and

playing back a selected audio content item on said portable device only in accordance with said constraints.

2-58. -58. (canceled)