SYSTEM AND METHOD FOR DISTRIBUTING MEDIA DATA

• US 20090031007A1
• Filed: 07/27/2007
• Published: 01/29/2009
• Est. Priority Date: 07/27/2007
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: RealNetworks, Inc.
• Inventors: Ayars, Jeff, Boic, Milko, Wright, Greg
• Granted Patent: US 7,694,006 B2
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: G06F 16/4387 by the use of playlists

Abstract

A method and computer program product for receiving a plurality of media data file portions on a client electronic device from a remote distribution server computer. Each media data file portion is associated with a media data stream. A user is allowed to select a specific media data file portion for rendering. The specific media data file portion is chosen from the plurality of media data file portions. Upon the user selecting the specific media data file portion, at least a portion of the specific media data file portion is rendered and a specific media data stream associated with the specific media data file portion is obtained from an on-demand media server computer.

Claims

1. A method comprising:

receiving a plurality of media data file portions on a client electronic device from a remote distribution server computer, wherein each media data file portion is associated with a media data stream;

allowing a user to select a specific media data file portion for rendering, wherein the specific media data file portion is chosen from the plurality of media data file portions; and

upon the user selecting the specific media data file portion, rendering at least a portion of the specific media data file portion and obtaining a specific media data stream associated with the specific media data file portion from an on-demand media server computer.

2. The method of claim 1 wherein receiving the plurality of media data file portions on the client electronic device from the remote distribution server computer includes:

receiving the plurality of media data file portions on the client electronic device from the remote distribution server computer during a low-bandwidth usage time frame.

3. The method of claim 1 wherein the specific media data file portion is an initial chronological portion of a larger media data file and the specific media data stream is a stream of a residual chronological portion of the larger media data file.

4. The method of claim 1 wherein the specific media data file portion is chronologically sized so that a rendering time of the specific media data file portion is at least as long as an anticipated time required to obtain the specific media data stream.

5. The method of claim 1 further comprising:

rendering at least a portion of the specific media data stream.

6. The method of claim 5 wherein rendering at least a portion of the specific media data file portion and at least a portion of the specific media data stream includes:

processing the specific media data file portion to generate a first normalized packetized stream;

processing the specific media data stream to generate a second normalized packetized stream; and

combining, using a packet loss tolerant stitching algorithm, at least a portion of the first normalized packetized stream and at least a portion of the second normalized packetized stream to generate a loss-compensated media data stream.

7. The method of claim 6 wherein rendering at least a portion of the specific media data file portion and at least a portion of the specific media data stream further includes:

rendering the loss-compensated media data stream on the client electronic device.

8. The method of claim 6 wherein the loss-compensated media data stream includes an A/V loss-compensated media data stream.

9. The method of claim 1 wherein the client electronic device is chosen from the group consisting of:

a personal computer;

a laptop computer;

a notebook computer;

a personal media device;

a personal digital assistant;

a data-enabled cellular telephone;

a television;

a cable box;

an internet radio; and

a dedicated network device.

10. The method of claim 1 wherein the specific media data file portion is sampled at a first bit rate and the specific media data stream is sampled at a second bit rate, wherein the first bit rate is less than the second bit rate.

11. The method of claim 1 wherein the specific media data file portion is obtained from the remote distribution server computer using a networking protocol chosen from the group consisting of:

a Multimedia Messaging Service (MMS) protocol;

a HyperText Transfer Protocol (HTTP);

a FLUTE protocol; and

a Really Simple Syndication (RSS) protocol.

12. The method of claim 1 wherein the specific media data stream is obtained from the on-demand media server computer using a networking protocol chosen from the group consisting of:

a Real Time Streaming Protocol (RTSP);

a Real-time Transport Protocol (RTP); and

a User Datagram Protocol (UDP).

13. The method of claim 1 wherein the specific media data file portion includes metadata that defines a location of the specific media data stream.

14. The method of claim 1 wherein the remote distribution server computer and the on-demand media server computer are a single server computer.

15. A computer program product residing on a computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:

receiving a plurality of media data file portions on a client electronic device from a remote distribution server computer, wherein each media data file portion is associated with a media data stream;

allowing a user to select a specific media data file portion for rendering, wherein the specific media data file portion is chosen from the plurality of media data file portions; and

upon the user selecting the specific media data file portion, rendering at least a portion of the specific media data file portion and obtaining a specific media data stream associated with the specific media data file portion from an on-demand media server computer.

16. The computer program product of claim 15 wherein the instructions for receiving the plurality of media data file portions on the client electronic device from the remote distribution server computer include instructions for:

receiving the plurality of media data file portions on the client electronic device from the remote distribution server computer during a low-bandwidth usage time frame.

17. The computer program product of claim 15 wherein the specific media data file portion is an initial chronological portion of a larger media data file and the specific media data stream is a stream of a residual chronological portion of the larger media data file.

18. The computer program product of claim 15 wherein the specific media data file portion is chronologically sized so that a rendering time of the specific media data file portion is at least as long as an anticipated time required to obtain the specific media data stream.

19. The computer program product of claim 15 further comprising instructions for:

rendering at least a portion of the specific media data stream.

20. The computer program product of claim 19 wherein the instructions for rendering at least a portion of the specific media data file portion and at least a portion of the specific media data stream include instructions for:

processing the specific media data file portion to generate a first normalized packetized stream;

processing the specific media data stream to generate a second normalized packetized stream; and

combining, using a packet loss tolerant stitching algorithm, at least a portion of the first normalized packetized stream and at least a portion of the second normalized packetized stream to generate a loss-compensated media data stream.

21. The computer program product of claim 20 wherein the instructions for rendering at least a portion of the specific media data file portion and at least a portion of the specific media data stream further include instructions for:

rendering the loss-compensated media data stream on the client electronic device.

22. The computer program product of claim 20 wherein the loss-compensated media data stream includes an A/V loss-compensated media data stream.

23. The computer program product of claim 15 wherein the client electronic device is chosen from the group consisting of:

a personal computer;

a laptop computer;

a notebook computer;

a personal media device;

a personal digital assistant;

a data-enabled cellular telephone;

a television;

a cable box;

an internet radio; and

a dedicated network device.

24. The computer program product of claim 15 wherein the specific media data file portion is sampled at a first bit rate and the specific media data stream is sampled at a second bit rate, wherein the first bit rate is less than the second bit rate.

25. The computer program product of claim 15 wherein the specific media data file portion is obtained from the remote distribution server computer using a networking protocol chosen from the group consisting of:

a Multimedia Messaging Service (MMS) protocol;

a HyperText Transfer Protocol (HTTP);

a FLUTE protocol; and

a Really Simple Syndication (RSS) protocol.

26. The computer program product of claim 15 wherein the specific media data stream is obtained from the on-demand media server computer using a networking protocol chosen from the group consisting of:

a Real Time Streaming Protocol (RTSP);

a Real-time Transport Protocol (RTP); and

a User Datagram Protocol (UDP).

27. The computer program product of claim 15 wherein the specific media data file portion includes metadata that defines a location of the specific media data stream.

28. The computer program product of claim 15 wherein the remote distribution server computer and the on-demand media server computer are a single server computer.