Active node, and contents transfer system and method using the active node

• US 7,774,773 B2
• Filed: 12/27/2004
• Issued: 08/10/2010
• Est. Priority Date: 08/04/2004
• Status: Expired due to Fees

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Lee, Jun Ho, Kim, Ki Jo, Lim, Kyungshik, Oh, Seung Hee, Sohn, Sung Won, Nam, Taek Yong
• Primary Examiner(s): Zhen; Wei Y
• Assistant Examiner(s): Chen; Qing
• Application Number:
  US11/023,911
• Publication Number:
  US 20060047854A1
• Time in Patent Office: 2,052 Days
• Field of Search: 717168-178, 709201-203, 709217-219
• US Class Current: 717/172
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

Provided are an active node, and a system and method of transmitting contents using the active node. When contents to be transmitted from a contents server to a terminal are received, resource information of the terminal is identified, the contents transmitted from the contents server are transformed into a pertinent format to the terminal based on the resource information, information included in a header of the contents is transformed into information about the transformed contents and is transmitted to the terminal, thereby reducing load according to contents transformation of a contents server.

Claims

1. An active node located between a terminal and a contents server, the active node comprising a computer-readable storage medium storing applications executable by the active node, the applications comprising:

a resource information manager that receives hardware/software resources information of the terminal using a predetermined framework;

a contents transformer that transforms contents output from the contents server into a pertinent format and transmits transformed contents to the terminal based on the hardware/software resources information of the terminal, and that receives contents transformation information via an active packet of an active network and updates functions for contents transformation based on the contents transformation information; and

a contents header manager to place information about the transformed contents in a header of the transformed contents, wherein

the active node transmits partially transformed contents to a different active node over an overlay network in response to a determination that the active node does not have a function to complete transformation of the contents,

wherein the overlay network is coupled to the contents server via a wireline network and coupled to the terminal via a wireless data network, the overlay network comprising a plurality of overlay managers to manage a plurality of active nodes, the plurality of overlay managers to generate interactive tunnels to each other and to form a mesh topology, to synchronize active node information using a node configuration and management protocol (NCMP), to process a query generated between the plurality of active nodes, to set each node of the overlay network, and to process an exception condition generated during operation,

wherein the resource information manager receives the hardware/software resources information of the terminal using a composite capability/preference profile framework.

2. The active node of claim 1, wherein the contents transformer downloads and stores contents transformation information pertinent to hardware/software resources information of various terminals using an active packet of an active network.

3. A method of an active node for providing contents, comprising the operations of:

receiving contents transmitted from a contents server to a predetermined terminal;

receiving hardware/software resources information of the predetermined terminal using a predetermined framework;

transforming the contents transmitted from the contents server into a pertinent format to the predetermined terminal based on the hardware/software resources information of the predetermined terminal;

placing information about the transformed contents in a header of the transformed contents; and

transmitting partially transformed contents to a different active node over an overlay network in response to a determination that the active node does not have a function to complete transformation of the contents,

wherein the overlay network is coupled to the contents server via a wireline network and coupled to the predetermined terminal via a wireless data network, the overlay network comprising a plurality of overlay managers to manage a plurality of active nodes, the plurality of overlay managers to generate interactive tunnels to each other and to form a mesh topology, to synchronize active node information using a node configuration and management protocol (NCMP), to process a query generated between the plurality of active nodes, to set each node of the overlay network, and to process an exception condition generated during operation, and functions for contents transformation is updated based on contents transformation information received via an active packet of an active network,

wherein the operation of receiving hardware/software resources information of the predetermined terminal further comprises the operation of receiving hardware/software resources information of the predetermined terminal using a composite capability/preference profile framework.

4. The method of claim 3, wherein the operation of transforming the contents further comprises the operation of downloading contents transformation information pertinent to various hardware/software resources information using an active packet of an active network.

5. A contents transmission system comprising:

a terminal which sends requests, via a wireless data network, for transmitting a predetermined contents;

a contents server which receives the requests and transmits, via a wireline network, contents corresponding to the predetermined contents in response to the requests; and

an overlay network coupled to the wireless data network and the wireline network, the overlay network comprising a plurality of overlay managers to manage a plurality of active nodes, the plurality of overlay managers to generate interactive tunnels to each other and to form a mesh topology, to synchronize active node information using a node configuration and management protocol (NCMP), to process a query generated between the plurality of active nodes, to set each node of the overlay network, and to process an exception condition generated during operation,

wherein an active node of the plurality of active nodes transforms the contents transmitted from the contents server into contents pertinent to the terminal based on hardware/software resources information of the terminal, places information about the transformed contents in a header of the transformed contents, and transmits partially transformed contents to another one of the plurality of active nodes over the overlay network in response to a determination that the active node does not have a function to complete transformation of the contents, and update functions for contents transformation based on contents transformation information received via an active packet of an active network,

a resource information manager which receives hardware/software resources information of the terminal using a composite capability reference profile framework.

6. The contents transmission system of claim 5, further comprising:

a contents transformer which transforms the contents transmitted from the contents server into a format pertinent to the terminal based on the hardware/software resources information of the terminal; and

a contents header manager to place the information about the transformed contents in the header of the transformed contents.