System and method for providing content in two formats on one DRM disk

• US 7,832,014 B2
• Filed: 02/21/2006
• Issued: 11/09/2010
• Est. Priority Date: 02/21/2006
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Read, Christopher Jensen
• Primary Examiner(s): Bui; Kieu Oanh
• Assistant Examiner(s): BROWN, ANTHONY D
• Application Number:
  US11/359,240
• Publication Number:
  US 20070195685A1
• Time in Patent Office: 1,722 Days
• Field of Search: 726/1, 726/2, 726/6, 726/18, 369/13.56, 369/13.01, 369/275.1, 369/275.3, 386/95, 386/125
• US Class Current: 726/26
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00818 wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals
• CPC Class Codes: G11B 20/1262 with more than one format/standard, e.g. conversion from CD-audio format to R-DAT format
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical discs]

Abstract

A DRM disk such as a Blu-ray stores content in a high resolution version for playing by a disk player. The disk also stores the same content in a lower resolution version for playing by a secondary device such as a Playstation Portable (PSP). The disk can be engaged with the disk player and the lower resolution format transferred to the secondary player through a mechanism such as a removable medium (e.g., a Sony Memory Stick®) or a USB connection or other means in accordance with DRM restrictions on the disk.

Claims

1. A data storage disk, comprising:

at least a first region storing content in a first format suitable for playing by a first player configured to engage the disk; and

at least a second region storing the content in a second format different from the first format, the second format being suitable for playing by a second player that is not configured for engaging the disk and that is configured for communicating with the first player for receiving the second format therefrom, the first player not being able to play the second format.

2. The disk of claim 1, wherein the disk bears digital rights management rules (DRM).

3. The disk of claim 1, wherein the disk is a Blu-ray disk.

4. The disk of claim 1, wherein the disk is a HD-DVD.

5. The disk of claim 1, wherein the first format has a higher resolution than the second format.

6. The disk of claim 1, wherein the second format is QVGA format.

7. The disk of claim 1, wherein the second format is standard definition (SD) video.

8. The disk of claim 1, wherein the second format is SubQCIF.

9. The disk of claim 1, wherein the first format has a different encoding than the second format.