System and method for uninterrupted streaming

• US 9,253,232 B2
• Filed: 03/15/2011
• Issued: 02/02/2016
• Est. Priority Date: 03/03/2003
• Status: Active Grant

• Current Assignee: Tahoe Research Limited (f/k/a Learndale Limited) (Vector Capital Corporation)
• Original Assignee: Intel Corporation
• Inventors: Ping, Hai-Feng, Boone, Haydon
• Primary Examiner(s): Duong, Oanh
• Application Number:
  US13/048,691
• Publication Number:
  US 20110167169A1
• Time in Patent Office: 1,785 Days
• Field of Search: 709/203, 709/217, 709/227, 709/231, 709/238, 709223-224, 709/232, 709/239, 714/1, 714/2, 714/4, 714/15
• US Class Current: 1/1
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A streaming media presentation transmission error recovery system and network. In one embodiment, in the event of a connection failure to a selected server, an alternative “mirrored” server is selected to resume the transmission of a selected streaming media presentation. One embodiment of the present invention provides for transparent switching from an interrupted media data stream to a stream from a newly-created network connection by providing an overlap between media that has been received and the data that is received via the new connection.

Claims

1. A method of presenting streaming media data received from a remote data processing apparatus via a communications network, the method comprising:

presenting with a client computer at least a portion of the streaming media data that is received via the communications network;

detecting with the client computer an interruption to receiving the streaming media data, the interruption causing reception of the streaming media data to terminate;

after the interruption, continuing to present as much of the data as was received prior to the termination of the reception;

determining a connection time in which reconnection is expected to be established;

determining a period of time where the streaming media data received prior to termination of the reception can be presented before the presentation of the received streaming media data is exhausted;

waiting until the remaining rendering time of the presentation is the same as the connection time before reconnecting;

reconnecting to the remote data processing apparatus via the communications network after detecting the interruption to receive at least a remainder of the streaming media data not yet received, wherein the reconnecting to the remote data processing apparatus comprises connecting to at least one alternate server to receive at least the remainder of the streaming media data with at least enough overlap between the streaming media data received from the at least one alternate server and the already received streaming media data to form an ostensibly continuous presentation; and

presenting at least the received remainder of the streaming media data, so the prior presentation and the remainder presentation form an ostensibly continuous presentation of the streaming media data without visible or audible interruption.

2. The method of claim 1, wherein the received portion of the streaming media data is obtained by the client computer from the remote data processing apparatus via the communications network using a first network connection and the reconnecting to the remote data processing apparatus utilizes a different transport layer protocol than that utilized in the first network connection.

3. The method of claim 1, further comprising if the reconnect fails, attempting another reconnect to the processing apparatus via the communications network.

4. The method of claim 2, further comprising receiving a preference as to whether reconnection should be performed and wherein the reconnecting to the processing apparatus is only performed if the preference permits reconnection.

5. The method of claim 1, wherein the remote data processing apparatus comprises a plurality of servers configured to transmit streaming media data and wherein the connecting to the at least one alternate server further comprising:

providing a server information list containing connection information for the at least one alternate server from which the streaming media data can be received;

selecting the at least one alternate server from the list; and

connecting to the selected at least one alternate server to receive streaming media data that overlaps at least a portion of the streaming media data already received.

6. The method of claim 1, wherein the determining the connection time is based at least in part on the amount of time needed to establish the reconnection with the remote data processing apparatus after the terminated reception.

7. The method of claim 2, wherein:

the streaming media data comprises a plurality of discrete packets of media data that are presented in succession;

each of the discrete packets has an associated time marker that defines when each discrete packet is to be presented relative to other packets from the plurality of discrete packets of the streaming media data; and

wherein each of the packets has an associated track, such that all packets associated with a particular track can be presented without regard to any packet associated with any other track.

8. A computing device comprising a processor and memory having tangibly stored instructions thereon that, when executed by the processor, perform a method to maintain a streaming media data connection to the device after detecting a connection interruption, the method comprising:

presenting streaming media data, the streaming media data being received over a data communications network from a first server; and

responsive to an indication that transmission of the streaming media data over the communications network cannot be sustained or is below a predetermined rate, selecting a second server containing the streaming media data, determining a desired reconnection time based in part on playing time of received unrendered streaming media data and the reconnection time representing anticipated connection time for a new connection to be established with the selected second server so that reconnection creates at least enough overlap between the streaming media data received from the new connection and the streaming media data already received to form an ostensibly continuous presentation of the streaming media data without visible or audible interruption and connecting to said second server to receive streaming media data from the second server that overlaps at least a portion of the streaming media data already received from the first server whenever the unrendered playing time is equal and/or less than the desired reconnection time.

9. The device of claim 8, wherein the selecting further comprises selecting the second server from a list of server information containing connection information for at least one server configured to provide the streaming media data over a data communications network.

10. The device of claim 9, wherein the selecting and the connecting may also be responsive to an alert sent from a third server that an initial network connection will end and wherein the list of server information is obtained from the third server at the time of the alert.

11. The device of claim 8, wherein the method, responsive to the reconnection with the selected second server, further comprises comparing the data arriving after reconnection to the data already received before reconnection, and selecting a point at which the streaming media data will cease being presented from the streaming media data already received prior to reconnection, and will instead be presented from the streaming media data arriving after reconnection.

12. A method of automatically restoring a failed streaming media connection, the method comprising:

connecting a client processing apparatus to a first streaming media server to receive a streaming media data over a data communications network;

detecting with the client processing apparatus whether an initial network connection for transmission of the streaming media data being received via the data communications network can be sustained, or whether said initial network connection has transmission delays exceeding a predetermined amount;

determining a desired reconnection time based in part on playing time of received unrendered streaming media data and the reconnection time representing anticipated connection time for a new network connection to be established so that reconnection creates at least enough overlap between the streaming media data received from the new connection and the streaming media data already received from the initial connection to form an ostensibly continuous presentation of the streaming media data without visible or audible interruption;

establishing with the client processing apparatus the new network connection between the client processing apparatus and a reconnection streaming media server to resume reception of the streaming media data whenever the unrendered playing time is less than the desired reconnection time; and

identifying a joint point in the streaming media data between information received via the new connection and information received prior to establishing the new connection.

13. The method of claim 12, further comprising:

rendering the streaming media data received through the initial network connection; and

after the new streaming media connection is created, switching to rendering the streaming media data received from the new network connection.

14. The method of claim 13, further comprising waiting a predetermined time before creating the new connection.

15. The method of claim 14, wherein the predetermined time is sufficient to begin a new connection and receive enough of the streaming media data from the new connection to switch to being rendered from the new connection in a manner that will be transparent to a user viewing the rendering.

16. The method of claim 14, wherein establishing the new network connection comprises:

creating the new connection to start at least as early as the desired connection time in the streaming media data; and

waiting to switch rendering from the streaming media data already received from the initial connection to rendering from the streaming media data received from the new connection until the desired connection time.

17. The method of claim 13, wherein the streaming media data comprises a plurality of discrete packets of media presentation data and wherein switching to rendering the streaming media data from the new network connection comprises:

analyzing packets of the media presentation data received via the new network connection and packets of the media presentation data received from the first streaming media server to determine a joint time where rendering can be switched with minimum disruption; and

switching rendering to the streaming media data received via the new connection at this joint time.

18. The method of claim 13, wherein:

the streaming media data comprises a plurality of discrete packets of media presentation data that are rendered in succession to display the streaming media data;

each of the packets has an associated time marker that defines when each packet is to be rendered relative to other packets from the presentation; and

each of the packets has an associated track, such that all of the packets associated with a particular track can be rendered without regard to any packet associated with any other track.