System and methods of streamlining media files from a dispersed peer network to maintain quality of service

• US 8,775,657 B2
• Filed: 10/31/2007
• Issued: 07/08/2014
• Est. Priority Date: 04/26/2002
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Hudson, Michael D., Windheim, Brian L., Stewart, Darin, Menon, Sudhir, Goschie, Mark W., Shipley, Glen Curtis
• Primary Examiner(s): TAYLOR, NICHOLAS R
• Application Number:
  US11/982,081
• Publication Number:
  US 20090049185A1
• Time in Patent Office: 2,442 Days
• Field of Search: 709/231
• US Class Current: 709/231
• CPC Class Codes: D01D 5/423 by fibrillation of films or filaments
• CPC Class Codes: D01F 6/625 derived from hydroxy-carboxylic acids, e.g. lactones
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1044 Group management mechanisms management of multicast group membership H04L12/185; reconfiguring of node membership in a computing system to eliminate errors G06F11/1425
• CPC Class Codes: H04L 67/1063 Discovery through centralising entities
• CPC Class Codes: H04L 67/1076 Resource dissemination mechanisms or network resource keeping policies for optimal resource availability in the overlay network
• CPC Class Codes: H04L 67/108 characterised by resources being split in blocks or fragments
• CPC Class Codes: H04L 67/288 Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Media content, including content suitable for streaming, is distributed to and accessible over a communications network by computer nodes within a peer storage network of computer nodes hosting respective content stores. Discrete portions of a content file are multiply distributed to and persisted in a distributed set of the content stores existing within the storage network such that various content stores persist subsets of the content file portions. A computer node retrieves the discrete portions of the content file from the various distributed content stores, depending on node availability, the particular discrete portions there available, and node and network performance factors sufficient to maintain a minimum quality of service, thereby enabling streaming presentation of the content file on the requesting computer node.

Claims

1. A method of operating a distributed streaming media storage system to support delivery of streaming media files to requesting computer systems, said method comprising the steps of:

a) recording the segmenting of streaming media content files into pluralities of named content segments including authentication values for said named content segments;

b) monitoring the distribution, for purposes of persistent storage, of said pluralities of content segments to a plurality of distributed network computer systems interconnected by a wide area communications network permitting individual transport of named content segments;

c) responding to a request for a predetermined streaming media content file by providing a manifest containing an identification of a subset of said plurality of distributed network computer systems from which to obtain through said wide area communications network of set of named content segments comprehensive of said predetermined streaming media content file, said manifest further containing said authentication values for said set of named content segments.

2. The method claim 1 wherein said identification specifies alternative distributed network computer systems to ensure that the entirety of said set of named content segments can be obtained with sufficient expediency to support streaming presentation of said streaming media content file substantially concurrent with transport of said named content segments.