WO2005088478A1 - Hierarchical broadcast of ui assets - Google Patents
Hierarchical broadcast of ui assets Download PDFInfo
- Publication number
- WO2005088478A1 WO2005088478A1 PCT/IB2005/050660 IB2005050660W WO2005088478A1 WO 2005088478 A1 WO2005088478 A1 WO 2005088478A1 IB 2005050660 W IB2005050660 W IB 2005050660W WO 2005088478 A1 WO2005088478 A1 WO 2005088478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- server
- user interface
- node
- message
- client
- Prior art date
Links
- 230000004044 response Effects 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 32
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 101100083337 Schizosaccharomyces pombe (strain 972 / ATCC 24843) pic1 gene Proteins 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
- G06F16/44—Browsing; Visualisation therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2805—Home Audio Video Interoperability [HAVI] networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2807—Exchanging configuration information on appliance services in a home automation network
- H04L12/2812—Exchanging configuration information on appliance services in a home automation network describing content present in a home automation network, e.g. audio video content
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
- H04N21/8173—End-user applications, e.g. Web browser, game
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Definitions
- the present invention relates to an in-home audiovisual entertainment system including a server and one or more clients.
- FIG. 1 An exemplary audiovisual system of the type on which the present invention is based is depicted in Figure 1.
- the system includes two clients, each client being connected to a server.
- the server stores data representing such items as video programmes or pieces of music, which data is available for retrieval by one or more of the clients.
- the data representing each item stored on the server includes one or more assets describing that item.
- An asset may be, for example, the name of a video programme or piece of music.
- a client presents assets to the user in the form of a hierarchical user interface, such as that depicted in Figure 2. Since the assets are stored on the server but are used by a client each time a page of the user interface is rendered, a problem exists of how to transfer assets efficiently from the server to a client.
- An object of the present invention is to provide the regular up-dating of user interface data in a server-client arrangement of electronic products. Another object of the present invention is to provide up-dating of user interface data in a server-client arrangement of electronic products while maintaining network bandwidth to a minimum. Another object of the present invention is to maintain the user interface data in electronic products in a server-client arrangement.
- the present invention provides a method of updating user interface in a server-client system arrangement of electronic products, the method comprising: a server sends a message to the system concerning a node in a hierarchical array of a user interface, the message providing an indication of what is the most recent data for the user interface node, and the server monitors the system for a response to that message.
- the server receives a response, the server sends the most recent data for that user interface node.
- the message includes information on the current data for the node and, if the client does not have that current data, a response is sent.
- the message-sending and response-monitoring operations are repeated for a number of nodes in the array.
- the array may be arranged in a plurality of groups of user interface actions, and when a response has been received, the server sends a message concerning the next node in the same user interface group as the previous node; when no response has been received, the server sends a message concerning a node in a subsequent user interface group of array.
- the server may send a message having data including a time stamp to indicate the last time that the data was up-dated.
- the method preferably includes storing data concerning the user interface nodes in a cache at a client.
- the present invention also provides a computer program product directly loadable into the internal memory of a digital computer comprising software code portions for performing the method of the invention when said product is run on a computer.
- the present invention also provides a computer program directly loadable into the internal memory of a digital computer, comprising software code portions for performing the method of the present invention when said program is run on a computer.
- the present invention also provides a carrier, which may comprise electronic signals, for a computer program of the present invention.
- the present invention also provides electronic distribution of a computer program product or a computer program or a carrier of the present invention.
- the present invention also provides a system for updating user interface data in a server-client system arrangement of electronic products, the system comprising: a server to send a message to the system concerning a node in a hierarchical array of a user interface, the message providing an indication of what is the most recent data for the user interface node, the server to monitor the system for a response to the message.
- the server may have means to send the most recent data for that user interface node if the server receives a response; and/or means to repeat message-sending and response-monitoring operations for a number of nodes in the array.
- the present invention also provides a server for a system for updating user interface data in a server-client arrangement system of electronic products, the server having means to send a message to the system concerning a node in a hierarchical array of a user interface, the message providing an indication of what is the most recent data for the user interface node, the server having means to monitor the system for a response to that message.
- the present invention also provides a client for updating user interface data in a server-client system arrangement of electronic products, the client having means to receive a message to the system concerning a node in a hierarchical array of a user interface, the message providing an indication of what is the most recent data for the user interface node.
- the present invention provides for the efficient and fast regular up-dating of user interface data in a server-client arrangement of electronic products.
- An advantage of the present invention is that it ensures efficient and rapid up-dating of user information data.
- Another advantage is that messages are sent only for that user interface data which is being currently used for the present configuration of products, and particularly for user interface data which is cached.
- Another advantage is that if none of the client caches require up-dating, only a single message is transmitted.
- the present invention is applicable to arrangements of electronic products, especially in-house networking and audiovisual entertainment systems typically including televisions, video and DVD players, and audio systems.
- the present invention may be implemented using standard TCP/IP networking, and the data can be transmitted within the server-client system using UDP broadcast packets.
- Figure 1 is a schematic diagram of an exemplary audiovisual system of the type on which the present invention is based
- Figure 2 is a schematic diagram of an exemplary hierarchical user interface of the type on which the present invention is based
- Figure 3 is flowchart illustrating a method performed by a client according to a first embodiment of the invention
- Figure 4 is flowchart illustrating a method performed by a server according to a first embodiment of the invention
- Figure 5 represents transmissions in an exemplary scenario between elements of the audiovisual system of Figure 1 , the system employing the methods of Figures 3 and 4
- Figure 6 is flowchart illustrating a method performed by a client according to a second embodiment of the invention
- Figure 7 is flowchart illustrating a method performed by a server according to a second embodiment of the invention.
- Figure 1 depicts an exemplary audiovisual system 10 including a first client 14 and a second client 16, each client 14, 16 being connected to a server 12.
- the first client 14 includes a television 18, while the second client 16 includes a small screen 20 and a stereo system 22.
- the server 12 stores data representing items for example video programmes or pieces of music, the data including one or more assets 28 describing each item.
- An asset 28 may be, for example, the name of a video programme or piece of music; metadata of an item (for example the artist, year of production, or album); a still picture (an album cover or single frame of a video); or a background image or advertisement for a user interface.
- a client 14, 16 presents assets 28 to the user in the form of a hierarchical user interface 30.
- Figure 2 depicts an exemplary hierarchical user interface 30, consisting of a network of nodes. Each node of the user interface 30 is either a directory 54 or an asset
- a directory 54 is capable of containing other directories 54, assets 28, or nothing, and is the means by which the user organises his assets 28 within the user interface 30.
- the user interface 30 consists of a root directory 7" containing several other directories 54, these being "/text"; “/images”; “/videos”; and “/music". Some of these directories 54 contain further directories 54 and/or assets 28, for example the asset "pid” in the directory "/images”.
- the position of a node of the user interface 30 is described by a path: the asset "pid”, for example, is described by the path "/images/pid”.
- the server 12 stores the path of the asset 28 and a timestamp indicating the last time that the asset 28 was up-dated.
- Each client 14, 16 stores and maintains a cache 24.
- An entry in the cache 24 includes an asset 28, a path of the asset 28 and a timestamp indicating the last time the entry was up-dated.
- the cache 24 contains entries relating only to the assets 28 used by that client 14,16 which are most frequently requested by the user. Since the assets 28 are stored primarily on the server 12 but are cached by the clients 14, 16, the cache 24 of each client 14, 16 must be regularly up-dated.
- the server 12 includes a daemon 26 which periodically scans the user interface 30 stored on the server 12 and broadcasts a message to all clients 14, 16 each time it encounters a node.
- Each message broadcast by the daemon 26 includes a path of the node (for example 7images/pic1"); a timestamp indicating the last time that an asset 28 whose path includes that path was up-dated, whichever asset 28 was up-dated the latest; and an ID, which a client 14, 16 includes in its response, if any, to the message.
- a client 14, 16 compares the contents of the message with the contents of its cache 24. Where the cache 24 contains an entry relating to an asset 28 whose path includes the path identified in the message, which asset 28 needs updating, (essentially that any node below it has a relevant entry) the client 14, 16 responds to the server 12. Otherwise, the client 14, 16 does not respond.
- FIG. 3 is a flowchart illustrating in detail the method performed by a client 14, 16.
- the client 14, 16 receives a message from the server 12 at step 302.
- the client 14, 16 examines its cache 24: if there is no entry in the cache 24 which relates to an asset 28 whose path includes the path identified in the message, then at step 308 the client 14, 16 does not respond to the message. If at step 304 the cache 24 contains such an entry, at step 306 the client 14, 16 compares the timestamp contained in the message with the timestamp stored in the entry. If the timestamp stored in the entry is equal to that contained in the message, then at step 308 the client 14, 16 does not respond.
- the client 14, 16 responds to the server 12.
- the client's 14, 16 response includes the ID included in the server's 12 message, by which ID the server 12 identifies which message, and thus which node, prompted the response.
- a client 14, 16 may be too busy to respond or may be switched off. In such cases, the client 14, 16 does not respond to the message.
- the server 12 waits a predetermined amount of time after sending a message. If the server 12 receives no response to a message identifying a particular path, the daemon 26 proceeds to the next node, if there is one, in the same directory as the last.
- FIG. 4 is a flowchart illustrating in detail the method performed by the server 12 as described above. The daemon 26 always begins from the root directory 7". Generally, whenever the daemon 26 encounters a node, at step 404 it transmits a message including the path of that node, as described above.
- the server 12 receives a response from a client 14, 16: where the node identified in the message is an asset 28, at step 418 an up-dated asset 28 is sent to the client 14, 16 which responded; where the node identified in the message is a directory 54, at step 420 the daemon 26 proceeds to the first node in that directory 54, before returning to step 404 to transmit a message identifying the path of that first node.
- the daemon 26 proceeds, descending a path when a response from a client 14, 16 is received, ascending a path when there are no more nodes in the current parent directory 54, otherwise transmitting a message for each node in a particular parent directory 54.
- the method terminates when the daemon 26 ascends the hierarchy back to the root directory 7". In this way, all out-of-date assets 28 are found by the daemon 26, while paths of the hierarchy containing only up-to-date assets 28 are not searched.
- FIG. 5 illustrates the transmissions which would occur between the server 12 and clients 14, 16 of the audiovisual system 10 of Figure 1 , the system 10 employing the methods of Figures 3 and 4, in an exemplary scenario where the assets 28 whose paths are 7videos/images/still3" and 7music/images/pic2" of the user interface 30 have been up-dated, the corresponding assets 28 stored in the respective cache 24 of each client 14, 16 thus being out-of-date.
- the asset 7videos/images/still3" is used by client 14, since client 14 includes the television 18, while the asset 7music/images/pic2" is used by client 16, since client 16 includes the small screen 20 and the stereo system 22.
- the daemon 26 of the server 12 begins by broadcasting a message identifying the path 7" and containing a timestamp, the timestamp indicating the time at which either 7videos/images/still3" or 7music/images/pic2" was updated, whichever is later, this being the last time that an asset 28 whose path includes the path 7" was up-dated. Both clients 14, 16 respond to this message, since each contains in its cache 24, for a node including the path 7", a timestamp which is older than that contained in the message.
- the daemon 26 After receiving a response from each client 14, 16, proceeds to the first node in that directory 54, the path of which node is "/text". Since no entry in the cache 24 of a client 14, 16 stores an asset 28 whose path includes that path (there is no asset 28 at all within the directory "/text"), no client 14, 16 responds.
- the daemon 26 proceeds by transmitting a message identifying the path for each node in the root directory 7", until it receives a response from client 14 to the message identifying the path "/videos", since an asset 28 whose path includes that path has been up-dated, the path of the up-dated asset 28 being 7videos/images/still3".
- the daemon 26 continues until it transmits a message identifying the path 7videos/images/still3", which path identifies an asset 28.
- the client 14 responds, since the entry in its cache 24 including the path
- 7videos/images/still3 includes a timestamp which is older than that contained in the message.
- the client's 14 response includes the ID included in the server's 12 message.
- the server 12 identifies the asset "still3" in the cache 24 of client 14 as being out-of-date.
- the server 12 receives the client's 14 response, it transmits to the client 14 data of the asset 7videos/images/still3" using a simple data transmission protocol.
- the daemon 26 proceeds according to the method of Figure 4 until the message identifying the path 7music/images/pic2" prompts the client 16 to respond, whereupon the server 12 transmits to the client 16 data of the asset
- the server 16 responds to the server 12, it includes in its response the timestamp of the oldest entry in its cache 24.
- the server 12 identifies nodes which have been deleted since that time, and identifies these in a delete message to the client
- FIG. 6 is a flowchart illustrating in detail the method performed by a client 14, 16 according to the second embodiment of the invention. Steps 302 to 310 are identical to those described above with reference to Figure 3.
- the client 14, 16 determines whether the message is a delete message. If so, at step 614 any entry containing a node specified in the delete message is deleted from the cache 24.
- Figure 7 is a flowchart illustrating in detail the method performed by the server 12 according to the second embodiment of the invention.
- Steps 402 to 422 are identical to those described above with reference to Figure 4.
- the daemon 26 at step 410 finds that there are no more nodes within the current parent directory, it proceeds to step 724 where it determines whether a node has been deleted from the parent directory since the time indicated in the client's 14, 16 response. If nodes have been deleted since the timestamp sent by the client 14, 16, the server 12 sends to that client 14, 16 a message indicating each node which has been deleted. Otherwise, the daemon 26 proceeds to step 412 as before.
- a response from a client 14, 16 to the server 12 includes the path of the node identified in the server's message: thus neither the server's nor the client's messages require the ID.
- the client 14, 16 may respond using HTTP, in which case the client 14,
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Information Transfer Between Computers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/598,272 US20080172447A1 (en) | 2004-03-02 | 2005-02-23 | Hierarchical Broadcast of Ui Assets |
EP05708816A EP1723558A1 (en) | 2004-03-02 | 2005-02-23 | Hierarchical broadcast of ui assets |
JP2007501400A JP2007527067A (en) | 2004-03-02 | 2005-02-23 | Hierarchical distribution of UI assets |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0404657.9A GB0404657D0 (en) | 2004-03-02 | 2004-03-02 | Hierarchical broadcast of UI assets |
GB0404657.9 | 2004-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005088478A1 true WO2005088478A1 (en) | 2005-09-22 |
Family
ID=32088562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/050660 WO2005088478A1 (en) | 2004-03-02 | 2005-02-23 | Hierarchical broadcast of ui assets |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080172447A1 (en) |
EP (1) | EP1723558A1 (en) |
JP (1) | JP2007527067A (en) |
KR (1) | KR20070003902A (en) |
CN (1) | CN1926547A (en) |
GB (1) | GB0404657D0 (en) |
WO (1) | WO2005088478A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070220171A1 (en) * | 2006-03-17 | 2007-09-20 | Sony Corporation | Systems and methods for synchronization of asynchronous networks |
CN102157005B (en) * | 2011-04-19 | 2012-11-21 | 无锡永中软件有限公司 | Document view drawing method applied to small-screen equipment |
CN103354624B (en) * | 2013-06-06 | 2016-06-29 | 青岛海信宽带多媒体技术有限公司 | The replacing options of UI interface images and device in Set Top Box |
CN105939355A (en) * | 2016-06-13 | 2016-09-14 | 乐视控股(北京)有限公司 | Data access method and system, as well as client and server |
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WO2001079964A2 (en) * | 2000-04-14 | 2001-10-25 | Realnetworks, Inc. | System and method of managing metadata |
US20020194314A1 (en) * | 2001-05-17 | 2002-12-19 | Alexander Kouznetsov | Application generator |
US20030097369A1 (en) * | 2001-10-31 | 2003-05-22 | International Business Machines Corporation | Dynamic generic framework for distributed tooling |
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US6388714B1 (en) * | 1995-10-02 | 2002-05-14 | Starsight Telecast Inc | Interactive computer system for providing television schedule information |
ES2291807T3 (en) * | 1997-06-25 | 2008-03-01 | Samsung Electronics Co., Ltd. | PROCEDURE AND APPLIANCE TO CONTROL DEVICES IN A DOMESTIC NETWORK. |
US6125369A (en) * | 1997-10-02 | 2000-09-26 | Microsoft Corporation | Continuous object sychronization between object stores on different computers |
US6456892B1 (en) * | 1998-07-01 | 2002-09-24 | Sony Electronics, Inc. | Data driven interaction for networked control of a DDI target device over a home entertainment network |
US8495679B2 (en) * | 2000-06-30 | 2013-07-23 | Thomson Licensing | Method and apparatus for delivery of television programs and targeted de-coupled advertising |
US20020120932A1 (en) * | 2001-02-28 | 2002-08-29 | Schwalb Eddie M. | Omni menu for an audio/visual network |
ATE335236T1 (en) * | 2001-06-28 | 2006-08-15 | Trek 2000 Int Ltd | DATA TRANSFER PROCEDURES AND FACILITIES |
US20080086494A1 (en) * | 2006-09-11 | 2008-04-10 | Apple Computer, Inc. | Transfer and synchronization of media data |
US7797446B2 (en) * | 2002-07-16 | 2010-09-14 | Apple Inc. | Method and system for updating playlists |
US7680849B2 (en) * | 2004-10-25 | 2010-03-16 | Apple Inc. | Multiple media type synchronization between host computer and media device |
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-
2004
- 2004-03-02 GB GBGB0404657.9A patent/GB0404657D0/en not_active Ceased
-
2005
- 2005-02-23 EP EP05708816A patent/EP1723558A1/en not_active Withdrawn
- 2005-02-23 JP JP2007501400A patent/JP2007527067A/en active Pending
- 2005-02-23 WO PCT/IB2005/050660 patent/WO2005088478A1/en not_active Application Discontinuation
- 2005-02-23 CN CNA2005800066826A patent/CN1926547A/en active Pending
- 2005-02-23 US US10/598,272 patent/US20080172447A1/en not_active Abandoned
- 2005-02-23 KR KR1020067017881A patent/KR20070003902A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2001079964A2 (en) * | 2000-04-14 | 2001-10-25 | Realnetworks, Inc. | System and method of managing metadata |
US20020194314A1 (en) * | 2001-05-17 | 2002-12-19 | Alexander Kouznetsov | Application generator |
US20030097369A1 (en) * | 2001-10-31 | 2003-05-22 | International Business Machines Corporation | Dynamic generic framework for distributed tooling |
Also Published As
Publication number | Publication date |
---|---|
EP1723558A1 (en) | 2006-11-22 |
GB0404657D0 (en) | 2004-04-07 |
JP2007527067A (en) | 2007-09-20 |
KR20070003902A (en) | 2007-01-05 |
CN1926547A (en) | 2007-03-07 |
US20080172447A1 (en) | 2008-07-17 |
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