Systems and methods for content playback and recording

• US 8,819,457 B2
• Filed: 10/08/2013
• Issued: 08/26/2014
• Est. Priority Date: 06/19/2008
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Chasen, Jeff, Leitner, Jeff, Buzzard, Jeff, Graham, Timothy, Hastings, Stephen Roger
• Primary Examiner(s): LE, CHAU D
• Application Number:
  US14/049,047
• Publication Number:
  US 20140140181A1
• Time in Patent Office: 322 Days
• Field of Search: 713/189, 713/193, 726/26, 380/200, 380/201
• US Class Current: 713/193
• 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 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00492 wherein content or user data is encrypted
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: G11B 27/36 Monitoring, i.e. supervising the progress of recording or reproducing for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06
• CPC Class Codes: G11B 7/28 Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/42684 Client identification by a unique number or address, e.g. serial number, MAC address, socket ID network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

A method for content playback and recording may include using a computer to obtain media content from a recorded medium. Concurrently with obtaining the media content, the method may include reencrypting the encrypted media content using a secondary encryption key and storing the reencrypted media content in a storage device.

Claims

1. A method comprising:

using a computer to perform the steps of;

detecting that a recorded medium including media content has been inserted into a media reader;

copying the media content from the recorded medium to a storage device without a user command to copy the media content, wherein copying includes;

tracking failed attempts to read one or more sectors of a particular cell in a bad sector counter, including;

in response to encountering an unreadable sector, incrementing the bad sector counter for the particular cell; and

in response to encountering a readable sector, clearing the bad sector counter for the particular cell;

in response to the bad sector counter exceeding a threshold value for the particular cell;

marking the particular cell as a bad cell, such that subsequent copying of the particular cell is not attempted;

clearing the bad sector counter; and

skipping to a next cell to continue reading the media content; and

in response to a user command to play back the media content, retrieving and playing back the media content from the storage device,

wherein at least a portion of the media content is played back from the storage device concurrently with the media content being copied from the recorded medium.

2. The method of claim 1, further comprising making the stored media content available for playback after the recorded medium has been removed from the media reader.

3. The method of claim 2, wherein making the stored media content available comprises:

determining a media identifier associated with the recorded medium or media content;

using the media identifier to obtain metadata relating to the stored media content through a network; and

associating the metadata with the stored media content in the storage device, wherein at least a portion of the metadata is displayable in a user interface to enable selection of the stored media content.

4. The method of claim 1, wherein the recorded medium comprises a digital versatile disc (DVD).

5. The method of claim 1, wherein the media content is obtained from the recorded medium at a higher rate than the media content is output to a display device.

6. A non-transitory computer readable storage medium having thereon instructions, which when executed by a processor, cause the processor to perform a method comprising:

reading media content from a recorded medium, wherein reading the media content comprises;

tracking failed attempts to read one or more sectors of a particular cell in a bad sector counter, including;

in response to encountering an unreadable sector, incrementing the bad sector counter for the particular cell; and

in response to encountering a readable sector, clearing the bad sector counter for the particular cell;

in response to the bad sector counter exceeding a threshold value for the particular cell;

marking the particular cell as a bad cell, such that subsequent copying of the particular cell is not attempted;

clearing the bad sector counter; and

skipping to a next cell to continue reading the media content;

storing the media content, not including cells that have been marked as a bad cell, in a storage device concurrently with reading the media content; and

playing back the media content from the storage device concurrently with storing the media content,

wherein the reading, storing, and playing back of the media content are initiated by a single user command.

7. The non-transitory computer readable storage medium of claim 6, wherein the single user command is a command to play back the media content from the recorded medium.

8. The non-transitory computer readable storage medium of claim 6, wherein the method further comprises:

making the stored media content available for subsequent playback without the recorded medium by;

determining a media identifier associated with the recorded medium or media content;

using the media identifier to obtain metadata relating to the stored media content through a network; and

associating the metadata with the stored media content in the storage device, wherein at least a portion of the metadata is displayable in a user interface to enable selection of the stored media content.

9. A system comprising:

a reader to read media content from a recorded medium, wherein the reader is configured to;

track failed attempts to read one or more sectors of a particular cell in a bad sector counter, including;

in response to encountering an unreadable sector, increment the bad sector counter for the particular cell; and

in response to encountering a readable sector, increment the bad sector counter for the particular cell; and

in response to the bad sector counter exceeding a threshold value for the particular cell;

mark the particular cell as a bad cell, such that subsequent copying of the particular cell is not attempted;

clear the bad sector counter; and

skip to a next cell to continue to read the media content;

a storage device to store the media content concurrently with the reading of the media content; and

a playback component to play back the media content from the storage device concurrently with the storing of the media content,

wherein the reading, storing, and playing back of the media content are initiated by a single user command.

10. The system of claim 9, wherein the recorded medium comprises a digital versatile disc (DVD).

11. The system of claim 9, wherein the media content is obtained from the recorded medium at a higher rate than the media content is output by the playback component.

12. The system of claim 9, further comprising a user interface component to make the stored media content available for subsequent playback without the recorded medium.

13. The system of claim 12, further comprising a metadata component configured to:

determine a media identifier associated with the recorded medium or media content;

use the media identifier to obtain metadata relating to the stored media content through a network; and

associate the metadata with the stored media content in the storage device, wherein at least a portion of the metadata is displayable in the user interface to enable selection of the stored media content.