Media file distribution with adaptive transmission protocols

• US 7,301,944 B1
• Filed: 04/16/1999
• Issued: 11/27/2007
• Est. Priority Date: 10/24/1997
• Status: Expired due to Fees

• Current Assignee: III Holdings 1, LLC
• Original Assignee: Tranz-Send Broadcasting Network, Inc.
• Inventors: Redmond, Scott D.
• Primary Examiner(s): MARCELO, MELVIN C
• Application Number:
  US09/295,000
• Time in Patent Office: 3,147 Days
• Field of Search: 370/352, 370/354, 370/390, 707/9, 707/10, 709/203, 709/217, 709/218, 709/219, 725/93, 725/96
• US Class Current: 370/390
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 65/80 Responding to QoS

Abstract

A server/client media file distribution system is provided in which the server system is adapted to receive transmission requests from clients, status information from a network, and protocol information from each client. The server, based upon this information, adaptively transmits a given media file stored therein to one or more clients using the optimal transmission speed and/or network protocol based on the network status information and protocol information. Additionally, the present invention provides a looping file arrangement in which a plurality of clients can receive the same media file on multiple network channels, without the need to provide multiple copies of the same media file for each request of that file.

Claims

1. A media distribution system, comprising:

a media file database configured to store media files, wherein one or more of the media files have been compressed prior to storage in the media file database;

a computing device configured to receive user requests for delivery of the one or more of the media files stored in the media file database, the computing device further configured to;

identify average network throughput between computing device and the requesting users; and

route the user requests for delivery of the requested one or more media files to a distribution server capable of servicing the user requests based upon at least the average network throughput; and

a distribution server coupled to the media file database, the distribution server configured to simultaneously deliver a single copy of the requested one or more of the media files identified in the routed user requests to the requesting users in less-than-real-time, wherein the distribution server automatically adjusts delivery of the requested one or more media files to the requesting users based on current average network throughput between the distribution server and the requesting users.

2. The system of claim 1, wherein one or more of the media files is divided into a plurality of frames, at least one of the plurality of frames including a header.

3. The system of claim 2, wherein one or more of the media files have been encrypted prior to storage in the media file database.

4. The system of claim 3, wherein at least one of the plurality of frames includes an encryption frame key in the header.

5. The system of claim 1, wherein one or more of the media files includes a digital watermark identifying a source of the one or more media files.

6. The system of claim 1, wherein one or more of the media files includes a digital watermark identifying ownership of the one or more media files.

7. The system of claim 1, wherein the computing device is further configured to identify a transmission protocol for delivery of the requested one or more media files to the requesting users.

8. The system of claim 7, wherein the computing device is further configured to route the user requests for delivery of the requested one or more media files to a distribution server capable of servicing the user requests further based upon at least the identified transmission protocol.

9. The system of claim 8, wherein the identified transmission protocol includes a multicast transmission protocol and the distribution server simultaneously delivers the one or more media files via a multicast transmission to the requesting users.

10. The system of claim 9, wherein the distribution server is further configured to repeat the transmission of the one or more media files via the multicast transmission to the requesting users until each of the requesting users has received the entirety of the one or more media files.

11. The system of claim 1, further comprising an advertisement database configured to store advertisement media files.

12. The system of claim 11, wherein an advertisement media file from the advertisement database is concatenated to the one or more media files based on at least an association parameter.

13. The system of claim 1, further comprising a financial transaction server configured to process a payment for delivery of the one or more media files requested by a user.

14. The system of claim 1, further comprising a second distribution server coupled to a second media file database, the second media file database configured to store media files, wherein one or more of the media files have been compressed prior to storage in the second media file database.

15. The system of claim 14, wherein the computing device is further configured to determine if the distribution server is no longer able to simultaneously deliver the requested one or more of the media files identified in the routed user requests to the requesting users in less-than-real-time after commencing delivery of the requested one or more media files.

16. The system of claim 15, wherein the computing device is further configured to reroute responsibility for the continued delivery of the requested one or more media files to the second distribution server.

17. The system of claim 14, wherein the computing device is further configured to determine if the distribution server is no longer able to optimally and simultaneously deliver the requested one or more of the media files identified in the routed user requests to the requesting users after commencing delivery of the requested one or more media files.

18. The system of claim 17, wherein the computing device is further configured to automatically and dynamically re-route responsibility for the continued delivery of the requested one or more media files between the first and second distribution server depending on at least the average network throughput.