Method for real time protocol media recording

• US 6,735,634 B1
• Filed: 06/10/1999
• Issued: 05/11/2004
• Est. Priority Date: 06/10/1999
• Status: Expired due to Term

• Current Assignee: CA, Inc. (d/b/a CA Technologies) (Broadcom, Inc.)
• Original Assignee: Blue Coat Systems Incorporated (Gen Digital Inc.)
• Inventors: Geagan, John B. III, Kellner, Michael D., Periyannan, Alagu S.
• Primary Examiner(s): Harrell, Robert B.
• Application Number:
  US09/330,318
• Time in Patent Office: 1,797 Days
• Field of Search: 707/10, 709/100, 709/224, 709/225, 709/229, 709/239, 709/218, 709/231, 709/230, 709/234, 709/235, 709/236, 709/242, 709/246, 714/100, 714/1, 714/2, 714/3, 714/4, 714/43, 710/8, 370/540, 370/545, 370/538
• US Class Current: 709/235
• CPC Class Codes: H04L 1/22 using redundant apparatus to increase reliability
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/23424 involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/44016 involving splicing one content stream with another content stream, e.g. for substituting a video clip
• 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 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]

Abstract

In the face of data loss on connections between a content source and a content consumer, additional connections therebetween are opened. These additional connections are preferably opened between the content source and a proxy disposed between the content source and the content consumer. The proxy may then seam together data streams received from the content source across the additional connections in a recording on a computer-readable medium. The seamed stream may be constructed by filling in information gaps in any of the data streams received from the content source with content derived from others of the data streams received from the content source. This derivation may be made on the basis of identifying characteristics (e.g., packet contents) of packets from each of the data streams received from the content source.

Claims

1. A method, comprising opening one or more additional connections between a content consumer and a content source in response to an indication that data loss has occurred over one or more existing connections between the content source and a proxy server, while continuing use of the one or more existing connections, wherein the content source is a Web server, and wherein the additional connections and the existing connections are within a common network.

2. The method of claim 1 wherein the one or more additional connections are opened between the content source and the proxy server disposed between the content source and the content consumer.

3. The method of claim 2 wherein the proxy server seams together data streams received from the content source across the additional connections before passing a resultant seamed stream to a subsequent content consumer.

4. The method of claim 3 wherein the proxy server constructs the seamed stream by filling in information gaps in any of the data streams received from the content source with content derived from others of the data streams received from the content source.

5. The method of claim 4 wherein the content is derived from others of the data streams on the basis of contents of packets from each of the data streams received from the content source.

6. A system, comprising means for opening one or more additional connections between a content consumer and a content source in response to an indication that data loss has occurred over one or more existing connections between the content source and a proxy server, while continuing use of the one or more existing connections, wherein the content source is a Web server, and wherein the additional connections and the existing connections are within a common network.

7. The system of claim 6 wherein the one or more additional connections are opened between the content source and the proxy server disposed between the content source and the content consumer.

8. The system of claim 7 wherein the proxy server seams together data streams received from the content source across the additional connections before passing a resultant seamed stream to a subsequent content consumer.

9. The system of claim 8 wherein the proxy server constructs the seamed stream by filling in information gaps in any of the data streams received from the content source with content derived from others of the data streams received from the content source.

10. The system of claim 9 wherein the content is derived from others of the data streams on the basis of contents of packets from each of the data streams received from the content source.

11. A proxy server, comprising:

a processor;

memory coupled to the processor;

a network interface that connects to a content source and a content consumer; and

one or more instructions stored in the memory, that when executed by the processor open one or more additional connections between the content consumer and the content source in response to an indication that data loss has occurred over one or more existing connections between the content source and the proxy server, while continuing use of the one or more existing connections, wherein the content source is a Web server, and wherein the additional connections and the existing connections are within a common network.

12. The proxy server of claim 11, wherein the one or more additional connections are opened between the content source and the proxy server disposed between the content source and the content consumer.

13. The system of claim 12, wherein the proxy server seams together data streams received from the content source across the additional connections before passing a resultant seamed stream to a subsequent content consumer.

14. The system of claim 13, wherein the proxy server constructs the seamed stream by filling in information gaps in any of the data streams received from the content source with content derived from others of the data streams received from the content source.

15. The system of claim 14, wherein the content is derived from others of the data streams on the basis of contents of packets from each of the data streams received from the content source.

16. A computer readable medium, having stored thereon computer-readable instructions, which when executed in a computer system, cause the computer system to perform opening one or more additional connections between a content consumer and a content source in response to an indication that data loss has occurred over one or more existing connections between the content source and a proxy server, while continuing use of the one or more existing connections, wherein the content source is a Web server, and wherein the additional connections and the existing connections are within a common network.

17. The computer-readable medium of claim 16, wherein the one or more additional connections are opened between the content source and the proxy server disposed between the content source and the content consumer.

18. The computer-readable medium of claim 17, wherein the proxy server seams together data streams received from the content source across the additional connections before passing a resultant seamed stream to a subsequent content consumer.

19. The computer-readable medium of claim 18, wherein the proxy server constructs the seamed stream by filling in information gaps in any of the data streams received from the content source with content derived from others of the data streams received from the content source.

20. The computer-readable medium of claim 19, wherein the content is derived from others of the data streams on the basis of contents of packets from each of the data streams received from the content source.