CN100553209C - For the deployment of multi-medium data on the Control Network is carried out high-speed cache to the LIST SERVER data - Google Patents

For the deployment of multi-medium data on the Control Network is carried out high-speed cache to the LIST SERVER data Download PDF

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CN100553209C
CN100553209C CNB2005800315123A CN200580031512A CN100553209C CN 100553209 C CN100553209 C CN 100553209C CN B2005800315123 A CNB2005800315123 A CN B2005800315123A CN 200580031512 A CN200580031512 A CN 200580031512A CN 100553209 C CN100553209 C CN 100553209C
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data
subclauses
synchronization object
change
clauses
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CN101023627A (en
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V·斯蒂尔比
K·卡阿勒拉
J·科斯塔-勒凯纳
M·塔姆斯基
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Nokia Oyj
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Abstract

Content description data between the equipment on the ad hoc peer-to-peer network is carried out synchronously, comprise a plurality of data clauses and subclauses are stored on the LIST SERVER.Each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks.The synchronization object of LIST SERVER is related with the data clauses and subclauses.Synchronization object can be described the change to the data clauses and subclauses.The data clauses and subclauses from LIST SERVER via the high-speed cache of network download to control point equipment.The synchronization object of LIST SERVER in response to the data strip purpose of LIST SERVER at least one change and change.Change based on the synchronization object of LIST SERVER utilizes the change at least one data clauses and subclauses, upgrades the high-speed cache of control point equipment.

Description

For the deployment of multi-medium data on the Control Network is carried out high-speed cache to the LIST SERVER data
The cross reference of related application
The application requires the U.S. Provisional Application No.60/603 of submission on August 19th, 2004,021 rights and interests.
Technical field
The present invention relates in general to communication, and relates more specifically to control the multi-medium data in the consumer electronics network environment.
Background technology
Accepted widely such as cellular mobile communication equipment, this is because multiple ability is added in this equipment.In the individual digital communications field that increases, modern mobile technology has become an important special dimension.Some mobile communication equipments comprise the function that permission equipment and computer are communicated by letter with other consumer electronic devices.For example, be known as UPnP TM(UPnP) standard provides the mode of foreign peoples's treatment facility via the network exchange data that be used for.The UPnP standard has defined framework at the ad-hoc network connectedness by a plurality of electronic equipments.The UPnP standard comprises the standard that is used for service discovery, and UPnP standard main purpose is to be used for contiguous or ad hoc network.
Therefore various devices publish UPnP equipment and service describing are created and are easy to the mode of connection device, and simplified the realization of network.UPnP is designed for operation under the multiple environment, comprises family, commerce, public place and is attached to the equipment of the Internet.The UPnP standard is the open architecture that influences the Web technology, and is designed to provide ad-hoc networking and Distributed Calculation.
The UPnP model is designed to support at the zero configuration networking of plurality of devices classification and finds automatically.This permission equipment dynamically adds network, obtains the network address, the ability of mediation device and know the appearance and the ability of other equipment.Internet protocol such as DHCP (DHCP) and domain name service (DNS) can be included in the UPnP network alternatively, although do not need these agreements.
The DHCP standard also comprises audio-video (AV) standard, specifically towards consumption electronic product (CE) equipment, such as TV, VCR, DVD player, stereophonic sound system, MP3 player etc.Usually, CE equipment is represented and the mutual any equipment of content of multimedia (for example, film, audio frequency and rest image), and CE equipment can comprise computer and mobile communication equipment.
Three main logic entities of UPnP AV framework definition: media server, medium renderer (Renderer) and AV control point.Media server can use content of multimedia, and can this content be sent to medium renderer equipment via the UPnP network.The medium renderer can present the content of multimedia that receives from the UPnP network.The operation of coordinating media server and medium renderer is come at the AV control point based on the end subscriber demand.
The AV control point is included in the order and control operation of UPnP AV network.Control point accessed content LIST SERVER (CDS) is to find and to enumerate via the addressable content of media server.Can comprise many contents via the findable content of CDS such as song and video clipping.The CDS content can also comprise container, the set of the clauses and subclauses of its representative such as playlist and photograph album.Each CDS content object no matter be clauses and subclauses or container, all comprises the metadata of the various attributes (such as title, artist etc.) of description object.
An advantage of UPnP media server is, it can store the multimedia set in the center, and because the distributed nature of UPnP network, so content can be by the device access of the diverse location in the whole family.Therefore, make ideal control point to be used to control visit such as the portable unit of mobile communication equipment to this data.For mobile communication equipment from one or more media server accesses data, then mobile communication equipment must communicate with CDS.
It will be understood that CDS can comprise quoting several thousand content objects.If mobile device must list a large amount of objects, then the bandwidth that consumes from mobile device visit CDS may be very large.Compare with wireline equipment, mobile communication equipment has limited bandwidth usually, if therefore require mobile device repeatedly to visit so big data volume, then mobile device may demonstrate relatively poor availability factor and performance.For mobile device via UPnP or similarly network control the deployment of content of multimedia, be desirable to provide a kind of mode, in order at mobile device with provide between those network entities of LIST SERVER and transmit the contents directory data effectively.
Summary of the invention
The disclosure relates to system, equipment and the method for the deployment of the multi-medium data between the equipment that is used on the Control Network.According to an embodiment of the invention, a kind of method is included in a plurality of data clauses and subclauses of storage on the LIST SERVER.Each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks.The synchronization object of LIST SERVER is related with the data clauses and subclauses.Synchronization object can be described the change to the data clauses and subclauses.The data clauses and subclauses from LIST SERVER via the high-speed cache of network download to control point equipment.In response to the change at least one of the data strip purpose of LIST SERVER, and the synchronization object of the server that chdirs.Change based on the synchronization object of LIST SERVER utilizes the change at least one data clauses and subclauses, upgrades the high-speed cache of control point equipment.
In execution mode more specifically, this method further comprises revises described synchronization object, with the renewal of the high-speed cache of reflection control point equipment.In a kind of configuration, synchronization object can comprise data strip purpose hash.In other configurations, synchronization object can be described in the change at least one of timestamp related with described multimedia data object and signature.In other configurations, synchronization object can be described increase and the deletion to clauses and subclauses of a plurality of data strip purposes.
In execution mode more specifically,, comprise and add data to synchronization object and the synchronization object of LIST SERVER changed in response to the change at least one of the data strip purpose of LIST SERVER.Change at least one data clauses and subclauses of the data description of being added.At other more specifically in the execution mode, the synchronization object of LIST SERVER changed to comprise creating and describe the new synchronization object that changes, and can carry out related with clauses and subclauses new synchronization object.In these concrete execution modes, the high-speed cache that upgrades control point equipment can comprise that inspection is after the previous renewal of high-speed cache and a plurality of new synchronization object that was added before the current renewal of high-speed cache.
According to another embodiment of the present invention, a kind of device comprises: network interface, and it can communicate via ad hoc peer-to-peer network and LIST SERVER; Processor, it is couple to described network interface; And memory, it is couple to described processor.Described memory comprises the high-speed cache that can store data and comprises the control point module.The control point module has makes processor carry out the instruction of following steps: with a plurality of data clauses and subclauses from LIST SERVER via network download to high-speed cache, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks; Via the synchronization object of the access to netwoks LIST SERVER related with the data clauses and subclauses of LIST SERVER, synchronization object can be described the change to the data clauses and subclauses; Detect the change in the synchronization object of LIST SERVER, this change in response to the data strip purpose of LIST SERVER at least one change and occur; And, utilize the change at least one data clauses and subclauses based on the change of the synchronization object of LIST SERVER, upgrade high-speed cache.
According to another embodiment of the present invention, a kind of computer-readable medium stores the instruction that can carry out by the data processing equipment that can be couple to ad hoc peer-to-peer network.This instruction can be used for execution and comprises the steps: to store a plurality of data clauses and subclauses, and each data clauses and subclauses is described one or more multimedia data objects, and described multimedia object can be by network entity via access to netwoks; The data clauses and subclauses are transmitted to network entity; Storage can be described to the synchronization object that the data strip purpose changes; In response to the change at least one data clauses and subclauses, and change synchronization object; And the change in the synchronization object is sent to network entity, thereby network entity can upgrade data strip purpose high-speed cache based on the change in the synchronization object.
According to another embodiment of the present invention, a kind of equipment comprises the network interface that can communicate via ad hoc peer-to-peer network.Processor is couple to network interface, and memory is couple to processor.Memory comprises the directory service module, it has and causes that described processor carries out the instruction of following operation: store a plurality of data clauses and subclauses, each data clauses and subclauses is described one or more multimedia data objects, and described multimedia object is that network entity can be via access to netwoks; With the data clauses and subclauses to the network entity transmission; Synchronization object is related with data entity, and synchronization object can be described the change to data entity; In response to the change at least one data clauses and subclauses related, and change described synchronization object with synchronization object; And the change in the synchronization object is sent to network entity, thereby network entity can upgrade data strip purpose high-speed cache based on the change in the synchronization object.
According to another embodiment of the present invention, computer-readable medium has the instruction of storage, and this instruction can be carried out by the data processing equipment that can be couple to ad hoc peer-to-peer network.This instruction can be used for execution and comprise the steps: to store a plurality of data clauses and subclauses, and each data clauses and subclauses is described one or more multimedia data objects, and described multimedia object is that network entity can be via access to netwoks; With the data clauses and subclauses to the network entity transmission; Storage can be described the synchronization object to the change of data entity; In response to the change at least one data entity, and change described synchronization object; And the change in the described synchronization object is delivered to network entity, thereby described network entity can upgrade described data strip purpose high-speed cache based on the change in the described synchronization object.
According to another embodiment of the present invention, a kind of system comprises ad hoc peer-to-peer network.LIST SERVER is couple to network and is configured to goes up a plurality of data clauses and subclauses of storage at data warehouse (data store).Each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks.The synchronization object of LIST SERVER is related with described data entity.In response to the described data clauses and subclauses of change, and the synchronization object of the server that chdirs.This system also comprises the control point that is couple to network.This control point is configured to a plurality of data clauses and subclauses are downloaded to the high-speed cache at control point from LIST SERVER, and detects the change in the synchronization object of LIST SERVER.The control point utilizes the change at least one data clauses and subclauses based on the change of the synchronization object of LIST SERVER, upgrades high-speed cache.
According to another embodiment of the present invention, a kind of equipment comprises: be used for device that a plurality of data clauses and subclauses of downloading from LIST SERVER are stored, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks; Be used to visit the device of the synchronization object of the LIST SERVER related with the data clauses and subclauses of LIST SERVER, the data strip purpose that synchronization object can be described LIST SERVER changes; Be used for detecting the device of change of the synchronization object of LIST SERVER, described change in response to the data strip purpose of LIST SERVER at least one change and occur; And be used for change based on the synchronization object of described LIST SERVER, and utilize the change at least one data clauses and subclauses, upgrade the data strip destination device of storing on the described equipment.
According to another embodiment of the present invention, a kind of equipment comprises: be used for device that a plurality of data clauses and subclauses of downloading from LIST SERVER are stored, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks; Be used to visit the device of the synchronization object of the LIST SERVER related with the data clauses and subclauses of LIST SERVER, the data strip purpose that synchronization object can be described LIST SERVER changes; Be used for detecting the device of change of the synchronization object of LIST SERVER, described change in response to the data strip purpose of described LIST SERVER at least one change and occur; And be used for change based on the synchronization object of described LIST SERVER, and utilize the change at least one data clauses and subclauses, upgrade the data strip destination device of storing on the described equipment.
According to another embodiment of the present invention, a kind of method is included in a plurality of data clauses and subclauses of storage on the LIST SERVER.Each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks.Carry out related with at least one data clauses and subclauses unique ID of LIST SERVER.With the data clauses and subclauses from described LIST SERVER via the high-speed cache of network download to portable terminal.In response to the change of the data strip purpose related at least one, change unique ID of described LIST SERVER with described unique ID.Change based on unique ID of LIST SERVER utilizes the change at least one data clauses and subclauses, upgrades the high-speed cache of described portable terminal.
Especially, utilization is attached to here and forms these and various other advantages and feature that a part of claims have pointed out to characterize novelty of the present invention here.Yet, in order to understand the present invention better, its advantage and the purpose that is reached by its use, should carry out reference to the accompanying drawing that forms the other part of the present invention, and the descriptive content of following carried out reference, wherein exist according to shown in system of the present invention, equipment and the method with the specific examples of describing.
Description of drawings
Be combined in the execution mode shown in the following drawings and describe the present invention.
Fig. 1 illustrates UPnP multimedia system according to the embodiment of the present invention;
Fig. 2 A illustrates the process that is used for initially filling the LIST SERVER high-speed cache according to the embodiment of the present invention;
Thereby Fig. 2 B illustrates the process that recursively reads LIST SERVER container filling LIST SERVER high-speed cache according to the embodiment of the present invention.
Fig. 3 illustrate according to the embodiment of the present invention in the setting that can be used for objects stored and container on the LIST SERVER that the keeping track of content catalogue changes;
Fig. 4 illustrate according to the embodiment of the present invention be used to use the high-speed cache turnaround sequence of backup media server data synchronously; And
Fig. 5 illustrates the portable terminal that is configured to control point and medium renderer according to the embodiment of the present invention.
Embodiment
In the description of following various illustrative embodiments,, wherein can realize that by diagram various execution mode of the present invention represents with reference to constituting the accompanying drawing of a part here.Will appreciate that and under the situation that does not depart from scope of the present invention, can utilize other execution mode, as making structural and operational change.
Usually, the invention provides a kind of mode of controlling the deployment of multi-medium data by control appliance.The catalogue data and the defining relation between the multimedia object (for example hierarchy) of multimedia object described in the control appliance utilization.Metadata can comprise the information of the description of position such as multimedia data file, multimedia object and classification, codec, host-host protocol, customized user data etc.Relation data can comprise sets definition or the container that multimedia object is divided into groups.
The present invention can utilize a kind of mechanism, and this mechanism uses existing UPnP AV framework to be provided for triggering the synchronous information of the metadata between CDS and the UPnP AV control point.In addition, the CDS metadata can be come store/cache by the control point or as the equipment of representing this control point, thereby can be according to user's position with good mode management of media file (that is Advanced Search,, context-aware search etc.).These synchronization mechanisms can also be used for making the backup procedure automation of media file of home network.
Typically, the multimedia catalogue storage is at one or more server units of network.Control appliance is via the multimedia catalogue data of access to netwoks from server unit (for example, the CDS of media server).Control appliance carries out local cache to catalogue data in data storage device.Subscriber equipment and server unit can be used for data are carried out synchronously by making of system and object identifier.Identifier is to make control appliance determine the data mark whether whole appearance changes of server unit.Identifier can also be used to provide more fine-grained change to determine, such as the state of following the tracks of multimedia object, container or other relation datas.
Identifier can be included in concrete formative clauses and subclauses among the CDS, and this CDS is with " signature " of medium server.Each in CDS, increase, delete or when upgrading new clauses and subclauses, media server will upgrade this signature.This signature can be expressed as the hash of the simple counter that increases when at every turn changing, metadata or can have the more senior implication of the attribute that also indication changes.Alternatively, CDS can define new clauses and subclauses being used for synchronously, perhaps content summary/backup data, and these clauses and subclauses can comprise: timestamp, signature etc.Unique ID of each CDS that is connected with the control point also will be stored in control point in this set.
Traditionally, consumer electronic devices is used private cable and electrical interface swap data.For example, audio/video (AV) receiver can have the input that is used to receive any combination of simulating synthetic video, analogue audio frequency, digital audio, Analog Component Video, digital video, remote control signal etc.Consumer-elcetronics devices is connected to the AV receiver via cable usually, and assemble around middle position in therefore common recreation center.Along with the continuous employing of wireless family networking, require all devices to be connected to and becoming out-of-date such as the control position of AV receiver and the notion of central authorities' exchange.The digit groups network technology makes accessed multimedia and other guide is distributed in the family.In some are provided with, can also via such as the length of the Internet apart from Access Network and remote access data.
In home environment, provide the expectation of data distribution capability to cause producing such as the UPnP standard techniques.UPnP is developed and is used for allowing such as the easy interoperability between the electronic equipment of the local network of home network.UPnP AV standard is the revision of UPnP, and it allows consumer electronic devices distribute entertainment content in whole home network.Although at the UPnP network description the present invention, be appreciated that the present invention can also be applied to allow between equipment the digitally other technologies of distribute entertainment content.For example, notion described herein can be applied in the home automation technology with being equal to, such as X-10, xAP, Jini, HomeRF, bluetooth, IrDA etc.
With reference now to Fig. 1,, shows the various entities of UPnP AV framework 100 according to the embodiment of the present invention.Particularly, show three logic entities of UPnP framework: media server 102, medium renderer 104 and control point 106.Media server 102 can be to entertainment content 107 visits that are arranged in one or more data warehouses 108.Media server 102 can send content 107 to another UPnP AV equipment such as medium renderer 104 via network 112.Medium renderer 104 can be from network 112 receiving multimedia contents 107, and content 107 is presented on its hardware interface.The operation of control point 106 coordinating media servers 102 and medium renderer 104, thereby the desired action of actuating station user.
Media server 102 and medium renderer 104 realize one group of UPnP AV service.These services can be used by control point 106, so that content is sent to renderer 104 from server 102.Between media server 102 and medium renderer 104, in the transmission data, only in order and control operation, relate to control point 106 usually.These operations generally include identification and select to be used for data, Data Transport Protocol and the data format of transfer of data.Media server 102 and medium renderer 104 will be used the content of being transmitted hope by network element 102,104 the two agreement all supported and form.Therefore, can be independent of by the used agreement of server 102 and renderer 104 or data format and realize control point 106.
Media server 102, medium renderer 104 and control point 106 are logic entities of definition in UPnP AV framework 100.The equipment that adopts in framework 100 can comprise the function of the combination in any of these entities 102,104,106.For example, equipment can comprise media server 104 that is identified as dotted line 114 and the control point 106 that embeds.Such equipment 114 comprises the ability of controlling from the operation of the same position of rendering content.
UPnP framework 100 is suitable for by electronic equipment use widely.For example, consumer electronic devices 120 can be utilized UPnP network 112.Consumer-elcetronics devices 120 can comprise audio frequency apparatus 122, TV 124, video camera 126, video-game 128, infrared (IR) Long-distance Control 129 or traditionally with any other relevant equipment of consumption amusement, as general consumer electronic devices 130 representatives.
Can also in UPnP framework 100, utilize data processing equipment 132.Data processing equipment 132 provides usually and calculates or communication function.The example of data processing equipment 132 comprises cell phone 134, desktop computer 136, portable computer 138, router one 40, PDA(Personal Digital Assistant) 142 or by any other equipment of common apparatus 144 representatives.It will be appreciated that, difference between consumer electronic devices 120 and the data processing equipment 132 is a little arbitrarily, because most of modern electronic equipments comprise data processing function (for example, embedded microprocessor) and most of useful calculating/communication equipment and have home applications.
Usually in the home environment of for example family or office, utilize UPnP framework 100.Framework 100 can utilize any combination wired and wireless network media and agreement.Can also make the network and the equipment the 120, the 132nd of UPnP framework 100, via such as the common data transmission medium accessible outside of the Internet 146.For example, UPnP gateway/router 148 can be so that remote equipment 150 visits the some or all of unit of UPnP network 112 via the Internet 146 or other public accessible media (for example, public wireless electric wave).
Utilize the AV ability of UPnP AV network to be usually directed to mutual between the equipment, described equipment is played the part of one or more roles at media server 102, medium renderer 104 and control point 106.The logic function of these entities 102,104,106 can be included in known consumption electronic product of prior art and the data processing equipment 120,132.For example, PDA 142 can be used as control point 106, so that select available streamed video from the computer 136 as media server 102.Streamed video may be directed to the TV 124 as medium renderer 104.Suppose that all devices in the framework 100 comprises the UPnP standard uniformly, then such between equipment can only utilize user's minimum setting and configuration alternately and take place.
The useful especially application of UPnP AV technology comprises wireless device (for example, cell phone 134) as control point 106.Usually, these wireless devices 134 can be applied to comprise 802.11 WLAN, bluetooth, CDMA, TDMA etc. by multiple wireless network and protocol communication.Wireless device 134 is normally portable and battery-powered, and is suitable for ideally as control point 106, and wireless device 134 is used for for example receiving the purpose of call because the user is easy to carry about with one.Therefore, can provide the wireless device 134 of UPnP control 106 to make the user needn't search for Long-distance Control 129 or other equipment of appointment.And the senior display capabilities of cellular phones 134 and similar devices is desirable for transmitting the required potential complex user interface in control point 106.
Use wireless device 134 to relate to the common low bandwidth connection that this equipment uses as the shortcoming at control point 106.Although (for example, 802.11g) provide ever-increasing bandwidth, most of portable sets can not utilize this bandwidth to some wireless protocols, for example because power transmission limitations.Therefore, when carrying out network service, will need the use of careful limiting bandwidth as the wireless device 134 at UPnP control point 106.Problem for the bandwidth availability ratio of understanding UPnP control point 106 has better proposed the more detailed discussion of how operating about control point 106 in UPnP AV standard.
The transfer of data between media server 102 and the medium renderer 104 is controlled at UPnP control point 106 usually.This can comprise: location-server 102 and renderer 104 on network; Enumerate from server 102 obtainable contents; Inquiry server 102 and renderer 106 are to determine common transmission protocols and data format; Utilize the content of expectation and the agreement and the form of selection, configuration server 102 and renderer 104; Start the transmission of content; Regulation is for the adjustment such as contents such as data rate, quantity.Control point 106 will comprise user interface 152 usually, be used for directory information is conveyed to the user and receives order from the user.Control manager 154 can be used for the communication between user interface 152 and server 102 and the renderer 104, so that carry out the desired data transfer task of user.
The task that carry out at control point 106 comprises inquiry media server 102, to determine available content on the server 102.Media server 102 can be visited entertainment content 107, and this content 107 can be sent to another equipment and be used to present.Media server 102 comprises control directory services (CDS) 156, and it makes control point 106 find and enumerate all the elements of server.Server 102 also comprises connection manager 158, and it allows control point 106 to consult and select employed agreement and data format when transmission content between media server 102 and renderer 104.Server 102 can comprise selectively that AV transmits service 160, and it is used for control content stream during playback on the medium renderer 104 (for example time-out, F.F.).
Medium renderer 104 is configured to via network 112 or other devices (for example direct wired connection) received content 107, and rendering content 107.Content 107 can be presented by any type of electronic equipment, and described electronic equipment comprises video display, loud speaker, engine, heating/refrigeration unit, electrochemical apparatus, switchgear etc.Medium renderer 104 comprises presenting controls 162, and it can be used to control content and how to be presented.Present control 162 parameters that can be used to change such as luminance video and volume.Medium renderer 104 comprises connection manager 164, and it is used for consulting and select agreement and data format with media server 102.Be similar to media server 102, the medium renderer can comprise that AV transmits service 166, and it is used to control content stream.
About by wireless device 134 employed bandwidth, special concern be CDS 156 with control point 106 between communicate by letter.CDS 156 makes that control point 106 is found and enumerated can be by the content 107 of media server 102 visits.With term " object " available content 107 on the media server 102 is described.CDS 156 provides a description the metadata of the various attributes of these objects.Metadata comprises such as attributes such as exercise question, duration, creation-time, modification times.
When control point 106 added network 112, its use SSDP (SSDP) was found all media servers 102 and the medium renderer 104 in the network.The all devices of realizing media server and medium renderer template will come in response to this request with the URL of the description document of equipment.In case positioning media server and renderer, control point 106 obtains and resolves the description document, to determine the definite ability of each equipment.
After initialization, control point 106 can use the CDS 156 of each media server to enumerate can be from the content of server 102 acquisitions.CDS 156 information can be collected from a plurality of servers in control point 106, and with this information aggregation to the single view of all the elements that can obtain from particular network 112.CDS 156 utilizes extend markup language (XML) description object and their relevant nature.To as if can be by CDS from any data entity of browsing or hunting action returns.A kind of character is represented the client defined feature of CDS 156 or object.CDS 156 is expressed as unit or attribute with the character among the XML.
CDS 156 utilizes the level of object classification.Particularly, two of object high-rise classification are " projects " and " container ".The unit of project ordinary representation AV data is such as CD track or movie file.The set of container representative object.Container can comprise project and other containers.CDS 156 forms the XML document of the description that these objects are provided.
CDS 156 mainly is based on " action ", mean can be from the control point 106 to call some predetermined actions, and CDS 156 makes response with data.At least two actions can be called in control point 106, to find object from CDS: " browsing " and " search ".CDS 156 supports " browsing " action at least, and can selectively support " search " action.Browse the entry point (that is container object) that is included in the CDS bibliographic structure and locate to extract the data object tabulation.Browse action can be represented by function prototype " Browse (ObjectID, BrowseFlag, Filter, StartingIndex, RequestedCount) ".ObjectID refers to the ID of current viewed object.Root container among the CDS 156 has the ObjectID that is always " 0 ".If BrowseFlag is set to " BrowseMetadata ", then CDS 156 will return the metadata relevant with ObjectID.If BrowseFlag is set to " BrowseDirectChildren ", then ObjectID refers to container, and CDS 156 will return the tabulation with the metadata of the object association that comprises in container.
Control point 106 can use the browse action that begins at root container place to find the whole contents of CDS156.As this action and subsequently any container of the result that found of action be used as entry point at subsequently browse request.By this way, control point 106 can travel through the whole bibliographic structure of being showed by CDS.
In response to " browsing " action, CDS 156 will return the XML section of the object that description asks.CDS 156 also will return the total number (if BrowseFlag is set to BrowseDirectChildren) of object in object number that indication returns among the result, the container and the value of UpdateID.UpdateID is the identifier that is used by CDS 156, with the current state of indication container.If the character of container or content changing, then its UpdateID is increased.If ObjectID is zero (that is, to liking the root container), the UpdateID that then returns is the unique identifier that is called SystemUpdateID.No matter when any change takes place in CDS 156 catalogues, and the SystemUpdateID variable all changes.
CDS 156 can selectively move corresponding to " search ".Search is used to find a group objects of coupling particular search criterion.CDS 156 can provide property list, thereon can be by searching in response to the GetSearchCapability action.Owing to utilize browse action, CDS 156 will return the XML section (if can find any described object) of describing the object that satisfies this search.
106 by browsing or hunting action when obtaining the tabulation of object at the control point, and control point 106 can be presented at the result in the user interface 152.The user can further browse being used for from these interface 152 options, or option presents being used to.After the content that the user selects to be presented, metadata is extracted from CDS 156 in control point 106, is used for item selected.This metadata is used to determine transportation protocol and the data format supported.Then control point 106 compares this metadata and data from the connection manager 164 of renderer, to determine whether renderer 104 can present desired content.
After identification common protocol/form, control point 106 is called connection manager service 158,164 in server 102 and renderer 104 on the two.To each equipment notification target protocol/format, and the multimedia playback session is set up and disposed to corresponding connection manager 158,164 based on selected common protocol and form.
CDS 156 mainly is designed for and makes that control point 106 discoveries can be via the data of CDS 156 visits.Control point 106 CDS 156 that can place one's entire reliance upon determines the current state of the content on the media server 102.But existing when CDS 156 data high-speeds are buffered on the control point equipment 106 is preferred situation.For example, control point 106 can provide the unavailable Advanced Search ability via CDS 156, searches for such as context-aware.In addition, control point 106 can be searched for local cache quickly rather than connect the 156 transmission requests to CDS by low bandwidth.When disconnecting fully from network 112 when connecting, control point 106 even can visit local cache.In other cases, a plurality of CDS 156 servers can be visited in control point 106, and described a plurality of CDS 156 servers always can be by control point 106 visits.By restricting the search to only those available CDS on current network connects, can improve search.
According to an embodiment of the invention, control point 106 comprises cache manger 168 and high-speed cache 170, and this high-speed cache is used to store the object metadata that receives from CDS 156.High-speed cache 170 can realize on any type of volatibility or nonvolatile memory that described volatibility or nonvolatile memory comprise hard drives, removable medium, flash memory, random-access memory (ram) etc.High-speed cache 168 is component softwares, and it can start action (for example, browsing) automatically, extracting object datas from CDS 156, and with this storage in high-speed cache 170.Cache manger 168 can also monitor the CDS action of being carried out by user interface 152, and control manager 154 is with establishment part CDS high-speed cache and/or to upgrade existing cache entries.User interface 152 can move with starting by video data, for example, searches for via cache manger 168, replaces searching for via control manager 154 and CDS 156.
When finding CDS 156 for the first time on the UPnP network, control point 106 equipment can be configured to read 156 data acquisition systems with high-speed cache whole C DS.Be used for according to the embodiment of the present invention with the CDS data read to an instantiation procedure of high-speed cache 170 shown in Fig. 2 A and the 2B.By calling the Read_Container routine 204 shown in 202 Fig. 2 B with the root container as parameter, 200 beginnings of Build_Cache routine.By obtaining all objects among the 206This_Container, Read_Container routine 204 begins, and This_Container is the parameter that is delivered in the routine 204.For example, call by BrowseFlag and to browse (Browse), can carry out this step 206 with BrowseDirectChildren.By container (if any) loop iteration 208 that in This_Container, finds, and on each container that finds, repeatedly call 210Read_Container.After Read_Container 210 returns, be added 212 at the metadata of each container and add high-speed cache to.Then, by loop iteration 214, the metadata of project and each project is added 216 and adds high-speed cache to.After the metadata of all containers and project was added to high-speed cache, routine withdrawed from 218.
As the possibility of routine shown in Fig. 2 A and Fig. 2 B, can allow in individual part, to download whole C DS bibliographic structure for the modification of CDS interface.For example, browse action can be extended to permission and download whole C DS data acquisition system in single calling.This can finish by the BrowseFlag of configuration browse action with support such as " BrowseAll ".The browse action of using BrowseAll to indicate will be returned and list the document that whole C DS metadata is deposited.
Refer again to Fig. 1, when being connected on the UPnP network 112 for the first time, high-speed cache 170 can be filled some or all of CDS data.In case when high-speed cache 170 comprises at least partial C DS content, must exist a kind of mode to determine clauses and subclauses timing changing among the CDS 156.Importantly, high-speed cache 170 and CDS 156 are still synchronous, so that correctly operate at control point 106.At present, CDS 156 keeps SystemUpdateID, and no matter when when any object of being followed the tracks of by CDS 156 is added or deletes, or when the metadata change of object, this SystemUpdateID will change.CDS 156 provides asynchronous event, and this asynchronous event is notified to system entity with the value of SystemUpdateID.In addition, at any time, clients entities can both be moved the currency of asking SystemUpdateID by call GetSystemUpdateID at CDS 156 places.Client can be used a kind of method in back, with at the currency of SystemUpdateID and poll CDS 156.
Usually, the content of its each CDS that runs into is stored this locality at control point 106.When control point 106 is connected to known CDS 156, " signature " clauses and subclauses will at first be read (for example, SystemUpdateID) in control point 106.If " signature " is different from " signature " of the 106 high speed buffer memorys at the control point, then the CDS content changes, and synchronizing process is triggered.
No matter when the CDS object changes, and CDS 156 only is required to revise SystemUpdateID, but does not stipulate the reformed mode of SystemUpdateID.SystemUpdateID can be the counter that increases when at every turn changing, maybe the attribute that can be changed with indication by specific coding and the value of scope.An example of last selection is the bit that SystemUpdateID is set, to indicate last change to comprise or not comprise change to metadata.Similarly bit can be used for the interpolation or the deletion of denoted object, or other change type.In another was realized, some bits of SystemUpdateID can be used to indicate a part of CDS directory tree that wherein changes, thereby quickened the extraction to the data that changed.
The use of SystemUpdateID has provided the coarseness indication of the change in the CDS 156, because it only indicates CDS 156 to change, what has not changed or where changes but do not indicate.CDS 156 can also provide ContainerUpdateID, and when the content changing of single container, this ContainerUpdateID changes.ContainerUpdateID can be used as incident and is sent by CDS 156.The ContainerUpdateID incident comprises that one group of customization (ordered) is right.Each customization is to comprising " ContainerID, ContainerUpdateID ".Control point 106 can monitor the ContainerUpdateID incident, extracts current container data by browsing or searching for, and uses the data of being extracted to upgrade high-speed cache 170.
These ContainerUpdateID and/or SystemUpdateID can be stored as the unique identifier that is used for each corresponding clauses and subclauses of CDS 156 in control point 106.This makes control point 106 only activate those clauses and subclauses in the high-speed cache 107 actual available in the network intelligently.For example, the user can have music collection in family or work place.The user may want to use identical application to manage music with identical equipment in these two positions.Work and family CDS will have different unique ID, and (for example, SystemUpdateID), and each clauses and subclauses in the CDS also will have unique ID (for example, ContainerUpdateID).By following the tracks of these unique ID, available items can and be activated for the user detection position in control point 106.
Usually, control point 106 can be at upgrading change among the ID poll CDS 156 or monitor the conventional update event that occurs.Although upgrading this tracking of ID is useful to the system that connects continuously, the mobile device 134 that is used as control point 106 can only be connected with CDS 156 discontinuously.Therefore, be connected, then will do not guarantee that about the trust (reliance) that receives update event high-speed cache 170 is by synchronously if control point 106 disconnects with network 112 at given time quantum.When in this case, control point 106 can travel through the CDS catalogue and download the clauses and subclauses of all or some changes again when reconnecting.But if only exist the minor alteration of CDS 156 and control point 106 is disconnected connection, then this may consume massive band width, and is not effective.
It is that the record that CDS 156 changes is preserved as the part of CDS directory service that a kind of high-speed cache 170 that is used for for the control point 106 that be interrupted to connect carries out synchronous scheme.A kind of mode that changes according to the preservation CDS of an embodiment of the invention as shown in Figure 3.CDS 156 can preserve the container of specific classification, and the container storage of described specific classification is under root container 302.In this example, container is class object.container.cache_delta.When the multimedia object data are offered the user, control point and other clients will be configured to ignore such container.Do not have the control point of this synchronizing characteristics also will ignore these clauses and subclauses, because its tree with routine is separated, and these clauses and subclauses will not blocked existing clauses and subclauses.Directly the position of the cache_delta container under the root container is arbitrarily; Any known location in the CDS bibliographic structure will be enough.Be appreciated that and utilize up-to-date CDS tree information, media server will be preserved these clauses and subclauses continuously.
In an example shown, two cache_delta containers 302,304 are positioned under the root container 300.Preserve container 302,304 at two client CLIENT_1 and CLIENT_2.By the action of calling on the CDS 156, control point or other clients can automatically be created these bibliographic structures.Be the list object of object.ite.cache_delta type under each container, for example project 306.In this example, container 302,304 comprises a plurality of cache_delta projects.Each cache_delta can comprise the record to the single change of CDS catalogue.Control point or other clients can be checked they self cache_delta container, read this cache_delta project, and the change of listing in the cache_delta project are applied to the local cache of client.Then client can be deleted the cache_delta project from container.Other are provided with and can comprise at the current or following deletion and tested clauses and subclauses are added sign or mark.Like this, CDS 156 can offer client with changing tabulation, and client needn't travel through whole C DS bibliographic structure.
In another was provided with, cache_delta catalogue 302,304 can only comprise and change the single file that links to each other.In this set, can needs have therefore been eliminated at the single file of each client storage of other known location among root container 300 or the CDS 156 for specific cache_delta container 302,304.In each is provided with, the cache_delta project will comprise this data, such as attribute and other required data of renewal local cache of timestamp, signature, 0bjectID, change.
Other variations that are provided with shown in Fig. 3 are included in and place " synchronizing metadata " clauses and subclauses among the CDS 156.Synchronizing metadata can comprise the unique ID that is similar to SystemID, but also will comprise the hash of signature or all or part of CDS 156.Synchronizing metadata can also comprise other metadata that allow the control point to determine the attribute of change, is similar to cache_delta project 306.The control point can comprise " sync agent ", and it is configured to read this metadata and only is applied in those changes of describing in this metadata.
Carry out synchronous employed synchronous protocol according to UPnP, CDS 156 can have a plurality of examples of this synchronization metadata entries.For example, if utilize SyncML to finish synchronously, then existence is comprised clauses and subclauses of some metadata of SyncML needs.In another is provided with, can preserve a plurality of synchronization metadata entries, each clauses and subclauses comprises related SystemID.If SystemID is a counter, then nearest value on the high-speed cache value of SystemID and the CDS 156 will be compared in the control point.The renewal control point is read with will comprising increase and is used each synchronization metadata entries with related id value, and the scope of the id value that this is related is between old SystemID and current SystemID.It will be understood that each CDS 156 in many CDS system can utilize different synchronous protocols, and these clauses and subclauses will comprise this information and other required metadata of those agreements.
As can perhaps may trigger automatically by the user when browsing or triggering during hunting action synchronously described in above each example by the sync agent that operates on the equipment.Control point 106 can be configured by this way, and promptly when approaching media server 102, all related datas will be automatically downloaded at control point 106, and/or search in object.container.cache_delta or other synchronizing metadatas.Determined that at control point 106 Downloadable data can be after CDS 156 obtains, triggering synchronous automatically, perhaps the user can be pointed out in control point 106, and there are data new or that revise in indication in media server 102.Then the user can browse to watch fresh content and to start synchronously.
Usually, in search with during system browses, data are carried out regularly the control point of high-speed cache will have quickly and respond.Especially true for wireless device, described wireless device has usually than lower bandwidth of wired connection and the time-delay of Geng Gao.Because exemplary systems does not only change continually, so the download of local cache and renewal will have minimum influence to bandwidth usage.
The tracking that CDS changes can be used for other application except that mobile control point.Fig. 4 shows the use high-speed cache data backup scenario of new ideas more according to the embodiment of the present invention.In Fig. 4, media server 102 comprises foregoing data warehouse 108 and CDS 156.Backup server 402 comprises and is used for the control point 106 mutual with CDS 156.Backup server 402 performance functions will be backuping on the backup data store 404 from the data of media data store 108.
In using for the first time, control point 106 may need to determine the whole contents of CDS 156.In this explanation, the navigation commands 406 with previously described BrowseAll expansion is used at control point 106.In response, CDS 156 is to answer at the metadata of all clauses and subclauses 408 in the CDS data storage device 108.Will appreciate that use directory traversal as shown in Figure 2A and 2B, can obtain identical clauses and subclauses 408.
Backup command 410 is sent to backup data store 404 in control point 106, and this backup data store 404 comprises all clauses and subclauses that need be extracted for backup.Backup data store 404 trip bar purposes are extracted 412 (for example, FTP GET), and clauses and subclauses download 414 to backup data store 404 from media data storage device 108.The data that it will be understood that extraction 414 can comprise any combination that is stored in media server 102 or any other local real data object (for example, media file) and CDS metadata.After this, backup server 402 only needs to carry out the backup of increase.
Fig. 4 shows two schemes that increase backup.In first scheme, control point 106 is at changing poll 416CDS 156 on one's own initiative.This poll 156 can comprise checks SystemUpdateID, ContainerUpdateID, or uses the data about the high-speed cache of the described regulation of Fig. 3.If change has taken place, response 418 is used for determining delta.Be similar to backup fully, control point 404 pairs of files of 106 order 420 backup data store back up.Yet only delta need be backed up specifically.As before, data warehouse 404,108 is carried out the request of extraction 422 and is downloaded 424, to back up this data immediately.
Next scheme among Fig. 4 is used the asynchronous refresh incident that is generated by CDS 156.CDS156 sends the incident 426 of transmitting any change in the media data storage device 108 regularly.Control point 106 only with delta high-speed cache 428 to internally cached (for example, shown in Figure 1 high-speed cache 170).In suc scheme, backup server 402 is configured to carry out backup during certain hour, such as at dead of night when the network possibility is inactive.Therefore, at the fixed time, the timer event 430 that control point 106 produces in response to inside also starts backup request 432, and this will obtain the download of data extract request 434 and incremental data 436.It will be understood that as shown in Figure 4 any combination that can use CDS poll and CDS incident with the backup that increases completely determining Backup Data, and any combination backed up of backup immediately and timer time.
The UPnP standard is enough flexibly, to allow the role of polytype equipment execution as media server, medium renderer and control point.Mobile device is useful especially as the control point, and can be used as the medium renderer.With reference now to Fig. 5,, show the example of representational mobile computing device 500, it is executable operations according to the embodiment of the present invention.Those skilled in the art it will be understood that exemplary mobile computing device 500 only represent can be related with this mobile device general utility functions, and the ground computing system comprises counting circuit similarly, to carry out this operation.
Shown mobile computing device 500 is suitable for carrying out as the two role of the medium renderer in the UPnP AV network and control point.Mobile computing device 500 comprises processing/control unit 502, such as microprocessor, risc (RISC) or other central processing modules.Processing unit 502 needs not be individual equipment, and can comprise one or more processors.For example, processor unit can comprise primary processor with related from processor, described being coupled from processor is used for communicating with primary processor.
The basic function of processing unit 502 control appliances 500.Can comprise that those related functions are as the instruction that is stored in the program storage/memory 504.In an embodiment of the invention, the program module related with memory/memory 504 is stored in non-volatile EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROM), the flash ROM (ROM) etc., thereby information can not lost when the portable terminal power down.Being used to carry out the traditional portable terminal operation and the related software of operations according to the instant invention can also be sent to mobile computing device 500 via data-signal, for example carries out the electricity download via the one or more networks such as the Internet and intermediate wireless network.
Program storage/memory 504 can also comprise operating system, be used to carry out with mobile computing device 500 on the application and the function of function association.Program storage 504 can comprise one or more read-only memorys (ROM), flash rom, able to programme and/or can wipe ROM, random-access memory (ram), Subscriber Interface Module SIM (SIM), radio interface module (WIM), smart card, hard disk drive or other movable memory equipments.
In order to carry out the control point function, program storage/memory 504 comprises control point manager 154, cache manger 168 and high-speed cache 170.Control point manager 154 carries out interface with user interface application interface (API) 506 and is connected, and is used for the display media server metadata, and is used to receive user's selection, thus control UPnP multimedia service.Present function in order to carry out medium, program storage/memory 504 comprises connection manager 164, AV delivery module 166 and renderer control 162.Renderer control 162 is also carried out interface with UP API 506 and is connected, so that physical equipment such as display and loud speaker is presented in output.
Mobile computing device 500 comprises the hardware and software parts that are coupled to processing/control unit 502, is used to carry out the network data exchange.Mobile computing device 500 can comprise multi-network interface, is used to keep any combination that wired or wireless data connect.Particularly, shown mobile computing device 500 comprises the wireless data transmission circuit, is used to carry out the network data exchange.
This radio-circuit comprises digital signal processor (DSP) 516, is used to carry out multiple function, comprises modulus (A/D) conversion, digital-to-analogue (D/A) conversion, audio coding/decoding, encrypt/decrypt, EDC error detection and correction, bit stream conversion, filtering etc.Usually the transceiver 518 that is couple to antenna 520 is launched the radio signal 522 of output and the radio signal that enters 524 of reception and this wireless device association.
Processor 502 also is coupled to the user interface related with portable terminal Unit 528.Mobile terminal user interface 528 can comprise, for example, and such as display 526, keyboard 510, loud speaker 512 and the microphone 514 of LCD.It is that prior art is known that these and other user interface component are couple to processor 502.Can adopt other user interface mechanisms, such as graphical user interface or any other user interface mechanisms of voice command, switch, touch pad/screen, use sensing equipment, tracking ball, joystick.
The representative example of the mobile computing device 500 of Fig. 5 as computing environment is provided, in this environment, can uses principle of the present invention.According to the description that provides here, those skilled in the art it will be understood that the present invention can be applied to moving and the ground computing environment of multiple other current known and futures with being equal to.For example, comprise processor, memory, user interface and datel circuit like the Desktop Computing equipment class.Therefore, the present invention can be applicable to any known computation structure, wherein can transmit data via network.
Hardware, firmware, software or its combination can be used to carry out various function as described herein and operation.Be intended to be included on any computer-usable medium or permanent the existence or the interim computer program that exists in any transmission medium of this program of transmission in order to the multinomial converted products that comprises code of carrying out the function related with the present invention.Transmission medium includes but not limited to via wireless/radio wave communication networks, the Internet, Intranet, the network service based on telephone/modem, communication network, satellite communication and other transmission static or mobile network system/communication linkage that hardwired/cable connects.From the description that provides here, those skilled in the art is easy to and the software created as described and suitable universal or special computer hardware can be made up, to create according to system of the present invention, equipment and method.
For the purpose of illustration and description, provided the above description of illustrative embodiments of the present invention.It is not intended to be exhaustive or to limit the invention to disclosed precise forms.According to above instruction, can carry out multiple modification and distortion.Be not intended to utilize this detailed description that scope of the present invention is limited, and limit by appending claims here.

Claims (44)

1. one kind is carried out synchronous method with the content description data between the equipment on the ad hoc peer-to-peer network, comprising:
A plurality of data clauses and subclauses are stored on the LIST SERVER, and each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks;
The synchronization object of described LIST SERVER and data clauses and subclauses are carried out related, described synchronization object can be described described data strip purpose is changed;
With described data clauses and subclauses from described LIST SERVER via the high-speed cache of network download to mobile universal plug and play control point equipment, the device rendered data clauses and subclauses of wherein said mobile universal plug and play control point are to provide via the remote user access of described mobile universal plug and play control point equipment to one or more multimedia data objects;
In response to the change at least one data clauses and subclauses of described LIST SERVER, change the synchronization object of described LIST SERVER; And
Change based on the synchronization object of described LIST SERVER utilizes the change at least one data clauses and subclauses, upgrades the high-speed cache of mobile universal plug and play control point equipment; And
Upgrade via the device rendered described data clauses and subclauses of described mobile universal plug and play control point based on the high-speed cache that upgrades.
2. method according to claim 1 further comprises and revises described synchronization object, with the renewal of the high-speed cache that reflects described mobile universal plug and play control point equipment.
3. method according to claim 1, wherein said synchronization object comprise data strip purpose hash.
4. method according to claim 1, wherein said synchronization object can be described in the change at least one of timestamp related with described multimedia data object and signature.
5. method according to claim 1, wherein said synchronization object can be described increase and the deletion to clauses and subclauses of a plurality of data strip purposes.
6. method according to claim 1, wherein in response to the change at least one of the data strip purpose of described LIST SERVER, and change the synchronization object of described LIST SERVER, comprise: add data to described synchronization object, the change at least one data clauses and subclauses of wherein said data description.
7. method according to claim 1 wherein in response to the change at least one of the data strip purpose of described LIST SERVER, and changes the synchronization object of described LIST SERVER, comprising:
Create the new synchronization object of describing described change; And
Carry out related with described clauses and subclauses described new synchronization object.
8. method according to claim 7, wherein the renewal to the high-speed cache of described mobile universal plug and play control point equipment comprises: check after the previous renewal of described high-speed cache and a plurality of new synchronization object that was added before the current renewal of described high-speed cache.
9. mobile device comprises:
Network interface can communicate via ad hoc peer-to-peer network and LIST SERVER;
User interface;
Processor is couple to described network interface and described user interface; And memory, being couple to described processor, described memory comprises the high-speed cache that can store data;
The universal plug and play control point module, it comprises:
Be used for a plurality of data clauses and subclauses from described LIST SERVER via the device of network download to described high-speed cache, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks;
Be used for presenting described data strip destination device, to provide via of the remote user access of described user interface to one or more multimedia data objects via described user interface;
Be used for the device via the synchronization object of the access to netwoks described LIST SERVER related with the data clauses and subclauses of described LIST SERVER, described synchronization object can be described described data strip purpose is changed;
Be used for detecting the device of change of the synchronization object of described LIST SERVER, described change in response to the data strip purpose of described LIST SERVER at least one change and occur; And
Be used for change, utilize the change at least one data clauses and subclauses, upgrade the device of described high-speed cache based on the described synchronization object of described LIST SERVER; And
Be used for upgrading the described data strip destination device that presents via described user interface based on the high-speed cache that upgrades.
10. mobile device according to claim 9, wherein said universal plug and play control point module further comprise and be used to make described processor to revise the synchronization object of described LIST SERVER, with the device of the renewal that reflects described high-speed cache.
11. mobile device according to claim 9, wherein said synchronization object comprise the data strip purpose hash related with described synchronization object.
12. mobile device according to claim 9, wherein said synchronization object can be described in the change in the metadata related with described multimedia object.
13. mobile device according to claim 9, wherein said synchronization object can be described increase and deletion to clauses and subclauses of a plurality of data strip purposes.
14. mobile device according to claim 9, the device that wherein is used for detecting the change of synchronization object comprises the device that is used for detecting the data that are added to described synchronization object, the change at least one data clauses and subclauses of wherein said data description.
15. mobile device according to claim 9, the device that wherein is used for detecting the change of synchronization object comprise the device that is used to detect to the establishment of the new synchronization object of the described LIST SERVER of describing described change.
16. mobile device according to claim 15 wherein comprises that to the renewal of described high-speed cache inspection is after the previous renewal of described high-speed cache and a plurality of new synchronization object of the LIST SERVER that was added before the current renewal of described high-speed cache.
17. a mobile data treatment facility, it can be couple to ad hoc peer-to-peer network, comprising:
Be used for a plurality of data clauses and subclauses from described LIST SERVER via the device of network download to the high-speed cache of described data processing equipment, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks;
Be used for presenting described data clauses and subclauses so that the device to the remote user access of one or more multimedia data objects to be provided via the universal plug and play control point module of described data processing equipment;
Be used for via the device of access to netwoks with the synchronization object of at least one related described LIST SERVER of data strip purpose of described LIST SERVER;
Be used for detecting the device of change of the synchronization object of described LIST SERVER, described change in response to the data strip purpose of the LIST SERVER related with described synchronization object at least one change and occur; And
Be used for change, utilize the change at least one data clauses and subclauses, upgrade the device of described high-speed cache based on the described synchronization object of described LIST SERVER; And
Be used for upgrading the described data strip destination device that presents based on the high-speed cache that upgrades.
18. mobile data treatment facility according to claim 17, wherein said universal plug and play control point module is revised the synchronization object of described LIST SERVER, to reflect the renewal of described high-speed cache.
19. mobile data treatment facility according to claim 17, wherein said synchronization object comprise the data strip purpose hash related with described synchronization object.
20. mobile data treatment facility according to claim 17, wherein said synchronization object can be described in the change in the metadata related with described multimedia object.
21. mobile data treatment facility according to claim 17, wherein said synchronization object can be described increase and deletion to clauses and subclauses of a plurality of data strip purposes.
22. mobile data treatment facility according to claim 17, the change that wherein detects in the synchronization object comprises that detection is added to the data in the described synchronization object, the change at least one data clauses and subclauses of wherein said data description.
23. mobile data treatment facility according to claim 17 wherein comprises the establishment of detection to the new synchronization object of the described LIST SERVER of describing described change to the detection of the change in the synchronization object.
24. mobile data treatment facility according to claim 23 wherein comprises that to the renewal of described high-speed cache inspection is after the previous renewal of described high-speed cache and a plurality of new synchronization object of the LIST SERVER that was added before the current renewal of described high-speed cache.
25. a mobile device comprises:
Network interface can communicate via ad hoc peer-to-peer network;
Processor is couple to described network interface; And
Memory is couple to described processor, and described memory comprises the directory service module, and this directory service module comprises:
Be used to store a plurality of data strip destination devices, each data clauses and subclauses is described one or more multimedia data objects, and described multimedia object is that network entity can be via access to netwoks, and wherein said network entity comprises mobile universal plug and play control point;
Be used for the device of data clauses and subclauses, so that promotion presents described data clauses and subclauses via described network entity and provides thus via the remote user access of described network entity to one or more multimedia data objects to the network entity transmission;
Be used for synchronization object and the related device of described data clauses and subclauses, described synchronization object can be described described data strip purpose is changed;
Be used in response at least one change of the data strip purpose related, and change the device of described synchronization object with described synchronization object; And
Be used for the change of described synchronization object is delivered to the device of network entity, thereby described network entity can upgrade described data strip purpose high-speed cache based on the change in the described synchronization object, and wherein said network entity upgrades the described data clauses and subclauses that present based on the high-speed cache of described renewal.
26. further comprising, mobile device according to claim 25, wherein said directory service module be used to make processor to allow network entity to revise described synchronization object, the device of the renewal of the high-speed cache of described network entity being carried out with reflection.
27. mobile device according to claim 25, wherein said synchronization object comprise the data strip purpose hash related with described synchronization object.
28. mobile device according to claim 25, wherein said synchronization object can be described in the change in the metadata related with described multimedia object.
29. mobile device according to claim 25, wherein said synchronization object can be described increase and deletion to clauses and subclauses of a plurality of data strip purposes.
30. mobile device according to claim 25, the device that wherein is used for changing described synchronization object comprises the device that is used for data are added to described synchronization object, the change at least one data clauses and subclauses of wherein said data description.
31. mobile device according to claim 25, the device that wherein is used to change described synchronization object comprises:
Be used to create the device of the new synchronization object of describing described change; And
Be used for described new synchronization object is carried out related device with described data clauses and subclauses.
32. a data processing equipment, it can be couple to ad hoc peer-to-peer network, comprising:
Be used to store a plurality of data strip destination devices, each data clauses and subclauses is described one or more multimedia data objects, and described multimedia object is that network entity can be via access to netwoks, and wherein said network entity comprises mobile universal plug and play control point;
Be used for the device of data clauses and subclauses, so that promotion presents described data clauses and subclauses via described network entity and provides thus via the remote user access of described network entity to one or more multimedia data objects to the network entity transmission;
Be used to store the device that to describe the synchronization object that described data strip purpose is changed;
Be used in response at least one the change of described data strip purpose, and change the device of described synchronization object; And
Be used for the change of described synchronization object is delivered to the device of network entity, thereby described network entity can upgrade described data strip purpose high-speed cache based on the change in the described synchronization object, and wherein said network entity upgrades the described data clauses and subclauses that present based on the high-speed cache of described renewal.
33. data processing equipment according to claim 32, wherein said network entity is revised described synchronization object, the renewal of the high-speed cache of described network entity being carried out with reflection.
34. data processing equipment according to claim 32, wherein said synchronization object comprise the data strip purpose hash related with described synchronization object.
35. data processing equipment according to claim 32, wherein said synchronization object can be described in the change in the metadata related with described multimedia object.
36. data processing equipment according to claim 32, wherein said synchronization object can be described increase and deletion to clauses and subclauses of a plurality of data strip purposes.
37. data processing equipment according to claim 32 wherein changes described synchronization object and comprises and add data to described synchronization object, the change at least one data clauses and subclauses of wherein said data description.
38. data processing equipment according to claim 32, wherein the change to described synchronization object comprises:
Create the new synchronization object of describing described change; And
Carry out related with described data clauses and subclauses described new synchronization object.
39. one kind is used for the content description data between the equipment on the ad hoc peer-to-peer network is carried out synchronous system, comprises:
Ad hoc peer-to-peer network;
LIST SERVER is couple to network and is configured to,
The a plurality of data clauses and subclauses of storage on data warehouse, each data clauses and subclauses is described one or more multimedia data objects, and described multimedia data object can be via access to netwoks;
The synchronization object of described LIST SERVER is related with described data clauses and subclauses;
In response to changing described data clauses and subclauses, and change the synchronization object of described LIST SERVER; And
Mobile universal plug and play control point is couple to described network and is configured to,
A plurality of data clauses and subclauses are downloaded to the high-speed cache at described control point from described LIST SERVER;
Present described data clauses and subclauses so that the remote user access to one or more multimedia data objects to be provided;
Detect the change in the synchronization object of described LIST SERVER; And
Change based on the synchronization object of described LIST SERVER utilizes the change at least one data clauses and subclauses, upgrades described high-speed cache; And
High-speed cache based on described renewal upgrades the described data clauses and subclauses that present.
40. according to the described system of claim 39, wherein said control point further is configured to revise described synchronization object, to reflect the renewal of described high-speed cache.
41. according to the described system of claim 39, wherein said synchronization object comprises described data strip purpose hash.
42. a mobile universal plug and play control point equipment comprises:
Be used to store a plurality of data strip destination devices of downloading from LIST SERVER, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks;
Be used to present described data clauses and subclauses to provide via the device of described equipment to the remote user access of one or more multimedia data objects;
Be used to visit the device of the synchronization object of the described LIST SERVER related with the data clauses and subclauses of described LIST SERVER, the data strip purpose that described synchronization object can be described described LIST SERVER changes;
Be used for detecting the device of change of the synchronization object of described LIST SERVER, described change in response to the data strip purpose of described LIST SERVER at least one change and occur; And
Be used for change, utilize the change at least one data clauses and subclauses, upgrade the data strip destination device of storing on the described equipment based on the synchronization object of described LIST SERVER; And
Be used for upgrading the described data strip destination device that presents based on the high-speed cache of described renewal.
43. an equipment that is used for deal with data comprises:
Be used to store a plurality of data strip destination devices, each data clauses and subclauses is described one or more multimedia data objects, and described multimedia data object can be by network entities access, and wherein said network entity comprises mobile universal plug and play control point;
Be used for the device of data clauses and subclauses, so that promotion presents described data clauses and subclauses via described network entity and provides thus via the remote user access of described network entity to one or more multimedia data objects to the network entity transmission;
Be used to store the device that to describe the synchronization object of the change of data clauses and subclauses;
Be used in response at least one change of the data strip purpose related, and change the device of described synchronization object with described synchronization object; And
Be used for the change of described synchronization object is delivered to the device of network entity, thereby described network entity can update stored in the data strip purpose high-speed cache on the described network entity, and wherein said network entity upgrades the described data clauses and subclauses that present based on the high-speed cache that upgrades.
44. the method for the deployment of the multi-medium data between the equipment that is controlled on the network comprises:
The a plurality of data clauses and subclauses of storage on LIST SERVER, each data clauses and subclauses is described can be via one or more multimedia data objects of access to netwoks;
At least one carries out related with unique ID and described data strip purpose of described LIST SERVER;
With described data clauses and subclauses from described LIST SERVER via the high-speed cache of network download to portable terminal, present described data clauses and subclauses so that promote via described portable terminal, thereby provide via the remote user access of described portable terminal to one or more multimedia data objects, wherein portable terminal comprises universal plug and play control point;
In response to the change of the data strip purpose related at least one, and change unique ID of described LIST SERVER with described unique ID;
Extract one or more data objects of describing the change at least one data clauses and subclauses from described LIST SERVER;
Based on described one or more data objects, utilize the change at least one data clauses and subclauses, upgrade the high-speed cache of described portable terminal; And
High-speed cache based on described renewal upgrades the described data clauses and subclauses that present.
CNB2005800315123A 2004-08-19 2005-08-11 For the deployment of multi-medium data on the Control Network is carried out high-speed cache to the LIST SERVER data Expired - Fee Related CN100553209C (en)

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