Methods, circuits, devices, systems and associated computer executable code for caching content

• US 9,325,803 B2
• Filed: 12/25/2014
• Issued: 04/26/2016
• Est. Priority Date: 02/24/2011
• Status: Active Grant

• Current Assignee: Saguna Networks Ltd. (COMSovereign Holding Corp.)
• Original Assignee: Saguna Networks Ltd. (COMSovereign Holding Corp.)
• Inventors: Frydman, Daniel Nathan, Fite, Lior
• Primary Examiner(s): Chacko, Joe
• Application Number:
  US14/583,129
• Publication Number:
  US 20150304443A1
• Time in Patent Office: 488 Days
• Field of Search: 709/217, 709/231, 709/232, 711/118
• US Class Current: 1/1
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04N 21/222 Secondary servers, e.g. proxy server, cable television Head-end provisioning of proxy services in data packet switching networks H04L67/56

Abstract

Disclosed are methods, circuits, devices, systems and associated computer executable code for caching content. According to embodiments, a client device may be connected to the internet or other distributed data network through a gateway network. As initial portions of client requested content enters the gateway network, the requested content may be characterized and compared to content previously cached on a cache integral or otherwise functionally associated with the gateway network. In the event a match is found, a routing logic, mechanism, circuitry or module may replace the content source server with the cache as the source of content being routed to the client device. In the event the comparison does not produce a match, as content enters the network a caching routine running on processing circuitry associated with the gateway network may passively cache the requested content while routing the content to the client device.

Claims

1. A content caching system for a gateway network, wherein said system comprises:

a network data flow controller comprising circuitry adapted to regulate data flow between an external content source and a client device and forward a stream of a given media content from the content source to the client device;

a cache repository to store media contents and characterization parameters of the media contents; and

processing circuitry communicatively coupled to a digital memory containing processor executable code, which processor executable code causes said processing circuitry to;

(i) sniff the stream of the given media content and generate one or more characterization parameters of the given media content passing through the gateway network from the external content source to the client device;

(ii) compare the generated one or more characterization parameters of the media content against stored characterization parameters of media contents stored in said cache repository; and

(iii) route a selected media content stored in the cache repository to the client device, which selected media content has characterization parameters matching the generated one or more characterization parameters of the media content.

2. The content caching system according to claim 1, wherein the one or more characterization parameters include a checksum or a hash sum over one or more segments of the given media content.

3. The content caching system according to claim 1, wherein said network data flow controller is further adapted to terminate the stream from the content source upon said routing module routing said selected media content to said client device.

4. The content caching system according to claim 1, wherein the routing module is further configured to route a second media content streaming through said network data flow manager to said cache repository for storage, in the event that said comparison module determines there is no media content in said cache repository having characterization parameters matching one or more characterization parameters of the second media content.

5. The content caching system according to claim 4, wherein the network data flow manager is further configured to forward a stream of the second media content to the client device in parallel with routing the second media content to said cache repository.

6. The content caching system according to claim 4, wherein the network data flow manager is further configured to route the second media content to the client device from the cache repository after routing at least a portion of the second media content to said cache repository from a second external content source.

7. The content caching system according to claim 6, wherein the network data flow manager is further configured to terminate a session with the second external content source substantially when the second media content is fully stored in said cache repository.

8. The content caching system according to claim 4, wherein the network data flow manager is further configured to continue a session with the external content source even when the client disconnects from the gateway network.

9. A gateway network comprising:

a network data flow controller comprising circuitry adapted to regulate data flow between an external content source, a client device and a cache repository and forward a first stream of a given media content from the content source to the client device;

a content caching unit comprising;

said cache repository to store media contents and characterization parameters of the media contents; and

processing circuitry communicatively coupled to a digital memory containing processor executable code, which processor executable code causes said processing circuitry to;

(1) generate one or more characterization parameters of the given media content streaming through said network data flow controller from the external content source to the client device;

(2) compare the generated one or more characterization parameters of the given media content against the stored characterization parameters of the stored media contents in said cache repository;

(3) the event that a match to the one or more characterization parameters is not found in said cache repository, cause said network data flow controller to route a second stream of the given media content from the external content source to said cache repository, in parallel to the first stream of the given media content from the external content source to the client device; and

(4) upon a predetermined portion of the given media content being received by said cache repository, cause said network data flow controller to terminate the streaming of the given media content from the external content source to the client device and commence streaming of the given media content from said cache repository to the client device.

10. The gateway network according to claim 9, further comprising a proxy server associated with said cache repository configured to stream the given media content from said cache repository to the client device.

11. The gateway network according to claim 10, wherein said proxy server is configured to stream the given media content to the client device using substantially the same content source addressing as the external content source.

12. The gateway network according to claim 11, wherein said proxy server is configured to employ spoofing to modify the content source address of the content.

13. The gateway network according to claim 9, wherein the routing module is further configured to continue a session with the external content source until the given media content is received by said cache repository in its entirety, following a client device connection termination.

14. The gateway network according to claim 9, wherein said content caching unit is integral to a core network infrastructure of said gateway network.

15. The gateway network according to claim 9, wherein said content caching unit is integral to an access network infrastructure of said gateway network.

16. A method for caching content in a gateway network comprising:

storing media contents and characterization parameters of the media contents in a cache repository;

forwarding, by a network data flow controller comprising circuitry adapted to regulate data flow between an external content source and a client device, a first stream of a given media content from an external content source to a client device;

generating, by processing circuitry communicatively coupled to a digital memory and said network data flow controller, one or more characterization parameters of the given media content streaming from the external content source to the client device;

comparing, by the processing circuitry, the one or more characterization parameters of the given media content against the stored characterization parameters of the stored media contents;

in the event that a match to the one or more characterization parameters is not found in said cache repository, routing a second stream of the given media content from the external content source to the cache repository, in parallel to the first stream of the given media content from the external content source to the client device; and

upon a predetermined portion of the given media content being received by the cache repository, terminating the streaming of the given media content from the external content source to the client device and commencing streaming of the given media content from said cache repository to the client device.

17. The method according to claim 16, further comprising continuing a session with the external content source until the given media content is received by said cache repository in its entirety, following a client device connection termination.

18. The method according to claim 16, further comprising using a proxy server associated with said cache repository to stream the given media content from said cache repository to the client device.

19. The method according to claim 16, further comprising streaming the given media content to the client device using substantially the same content source addressing as the external content source.

20. The method according to claim 16, further comprising spoofing to modify the content source address of the content.