Scheduled retrieval, storage and access of media data

• US 7,721,314 B2
• Filed: 03/30/2009
• Issued: 05/18/2010
• Est. Priority Date: 12/08/1999
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Listen.com, Inc. (RealNetworks, Inc.)
• Inventors: Lester, James P., Rebaud, Sylvain P., Sincaglia, Nicolas W.
• Primary Examiner(s): Lonsberry; Hunter B.
• Application Number:
  US12/414,544
• Publication Number:
  US 20090183212A1
• Time in Patent Office: 414 Days
• Field of Search: 725 93- 96
• US Class Current: 725/96
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/4335 Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions storage management, e.g. defragmentation G06F3/0604; unloading stored programs G06F9/445; storage management in file systems G06F16/10; buffering arrangements in a network node or in an end terminal in packet networks H04L49/90
• CPC Class Codes: H04N 21/458 Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations arrangements for replacing or switching information during the broadcast or during the distribution H04H20/10
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• 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 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/4782 Web browsing , e.g. WebTV
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A system and method automates a scheduled retrieval, storage, and access of media data. Media data is retrieved from an external source and downloaded to an end user media device storage for subsequent playback at the end user media device. Media data is accessible from the end user media device storage based upon criteria including a selection of the end user, rules regulating the media data, and whether a playback time of the media data is sufficient to retrieve additional media data. The system performs regularly scheduled dynamic controls to determine whether additional media data is required for continuous and uninterrupted access of the media data.

Claims

1. A computer-implemented method of processing media data from a network, the method comprising:

obtaining, at a system scheduler from a user input controller, an indication to process the media data;

obtaining, at a data transfer controller, at least a portion of the media data via the network, and providing the obtained media data to a media storage manager;

monitoring, at said data transfer controller, a varying data transfer rate associated with obtaining at least a portion of the media data;

periodically determining, at said data transfer controller, a statistical measure of the varying data transfer rate;

periodically sending, at said data transfer controller, the determined statistical measure to a system scheduler;

storing, at said media storage manager, the obtained media data in a local memory;

periodically determining, at said media storage manager, local memory status information;

periodically providing, at said media storage manager, the determined local memory status information to the system scheduler;

periodically determining, at said system scheduler, a real time playback duration of the media data;

predicting, at said system scheduler, in accordance with at least the periodically determined statistical measure and local memory status information, whether processing of the media data is likely to be interrupted;

when processing is unlikely to be interrupted, signaling, by said system scheduler, a media processing engine;

playing back, at said media processing engine, at least a portion of the media data in real time in accordance with the signaling by said system scheduler.

2. The method of claim 1, further comprising periodically determining, at said system scheduler, a target media bit rate in accordance with at least said real time playback duration and said periodically determined statistical measure.

3. The method of claim 2, further comprising, scheduling, at said system scheduler, said data transfer controller to obtain at least a second portion of the media data in accordance with said target bit rate.

4. The method of claim 1, wherein said local memory status information comprises an indication that said local memory has insufficient capacity to store additional media data, the method further comprising removing, by said media storage manager, a portion of media data from said local memory.

5. The method of claim 1, further comprising determining, by said system scheduler, an accessibility status for at least a portion of media data stored in said local memory.

6. The method of claim 5, further comprising:

periodically providing, by said system scheduler, said accessibility status to said media storage manager; and

removing, by said media storage manager, a portion of media data from said local memory in accordance with said provided accessibility status.

7. A computer readable storage medium having stored thereon computer executable instructions that, when executed by a suitable computing apparatus, perform the method of claim 1.

8. A computing apparatus comprising a processor, a memory, a system scheduler, a data transfer controller, a media storage manager, and a media processing engine, the memory storing instructions that, when executed by the processor, perform the method of claim 1.

9. A computer-implemented method of processing media data from a network, the method comprising:

at a system scheduler;

obtaining from a user input controller an indication to process the media data;

at a data transfer controller;

i) obtaining at least a portion of the media data via the network and providing the obtained media data to a media storage manager;

ii) monitoring a varying data transfer rate as the media data is obtained via the network;

iii) periodically determining a statistical measure of the varying data transfer rate; and

iv) periodically sending said determined statistical measure to a system scheduler;

at said media storage manager;

i) storing the obtained media data in a local memory;

ii) periodically determining local memory status information; and

iii) periodically providing said determined local memory status information to the system scheduler;

at said system scheduler;

i) periodically determining a real time playback duration of the media data;

ii) predicting, in accordance with at least said periodically determined statistical measure and local memory status information, whether processing of the media data is likely to be interrupted; and

iii) when processing is unlikely to be interrupted, signaling a media processing engine;

at said media processing engine;

playing back at least a portion of the media data in real time in accordance with the signaling by said system scheduler.

10. The method of claim 9, further comprising periodically determining, at said system scheduler, a target media bit rate in accordance with at least said real time playback duration and said periodically determined statistical measure.

11. The method of claim 10, further comprising, scheduling, at said system scheduler, said data transfer controller to obtain at least a second portion of the media data in accordance with said target bit rate.

12. The method of claim 9, wherein said local memory status information comprises an indication that said local memory has insufficient capacity to store additional media data, the method further comprising removing, by said media storage manager, a portion of media data from said local memory.

13. The method of claim 9, further comprising determining, by said system scheduler, an accessibility status for at least a portion of media data stored in said local memory.

14. The method of claim 13, further comprising:

periodically providing, by said system scheduler, said accessibility status to said media storage manager; and

removing, by said media storage manager, a portion of media data from said local memory in accordance with said provided accessibility status.

15. A computer readable storage medium having stored thereon computer executable instructions that, when executed by a suitable computing apparatus, perform the method of claim 9.

16. A computing apparatus comprising a processor, a memory, a system scheduler, a data transfer controller, a media storage manager, and a media processing engine, the memory storing instructions that, when executed by the processor, perform the method of claim 9.