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`EP 2 180 664 A1
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`EUROPEAN PATENT APPLICATION
`
`(43) Date of publication:
`28.04.2010 Bulletin 2010/17
`
`(21) Application number: 08290993.8
`
`(22) Date of filing: 22.10.2008
`
`(51 ) Int Cl.:
`H04L 29108 12006-011
`
`H04L 29/0612006·011
`
`(84) Designated Contracting States:
`AT BE BG CH CY CZ DE DK EE ES Fl FR GB GR
`HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT
`RO SE SI SKTR
`Designated Extension States:
`AL BAMK RS
`
`(72) Inventors:
`• Marusi, Julien
`13005 Marseille (FR)
`• Charrier, Franck
`13190 Allauch (FR)
`
`(71) Applicant: Vivendi Mobile Entertainment
`75002 Paris (FR)
`
`(7 4) Representative: Prinz & Partner
`Patentanwalte
`Rundfunkplatz 2
`80335 Miinchen (DE)
`
`(54)
`
`System and method for accessing multi-media content via a mobile terminal
`
`(57)
`A system for accessing multi-media content is
`provided , which is adapted to be accessed by a mobile
`terminal (110) through a radio network(120). The system
`comprises storage means (130) adapted to store a plu(cid:173)
`rality of multi-media content files having different digital
`formats. The system further comprises a mobile terminal
`characterizing unit (140), which is adapted to provide mo(cid:173)
`bile terminal capabilities information indicating at least
`one capability of the mobile terminal , and a matching unit
`(150), which is adapted to identify a subset of the plurality
`of multi-media content files having at least one specific
`digital format wherein the at least one specific digital for-
`
`mat is supported by the at least one capability of the
`mobile terminal , wherein the system is adapted to provide
`the subset of the plurality of multi-media content files hav(cid:173)
`ing the at least one supported digital format to the mobile
`terminal. The mobile terminal characterizing unit is fur(cid:173)
`ther adapted to receive terminal identification information
`from the mobile terminal and to provide the terminal ca(cid:173)
`pabilities information based on the terminal identification
`information , and wherein the matching unit is further
`adapted to identify the subset of the plurality of multi(cid:173)
`media content files based on the terminal capabilities in(cid:173)
`formation.
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`Printed by Jouve, 75001 PARIS (FR)
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`Description
`
`Field of the Invention
`
`[0001] The present invention relates to a system for providing multi-media content and in particular to a system for
`accessing multi-media content, wherein the system is accessible by a mobile terminal through a radio network and
`provides a subset of the multi-media content which has a digital format supported by the mobile terminal.
`
`Background of the invention
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`[0002] Mobile terminals comprise, for example, cellular phones and smart phones which are wide spread today and
`which are still developing very fast. These mobile phones allow the users to communicate via a radio network, for example
`cellular networks such as GSM and UMTS, the access to which is given by a network operator. While mobile phones
`in a first approach provide the users with audio communication, lots of mobile terminals are nowadays equipped with a
`more or less large screen allowing pictures and even videos to be displayed and often they are equipped with a photo
`camera as well. Additionally, mobile phones give access to the internet, which is a fixed communication network primarily
`allowing the interconnection of fixed digital communication units, e. g. personal computers. The internet, and more
`precisely the World Wide Web, gives access to a multitude of websites. A website is collection of so called web pages
`and web applications hosted on one or more web servers. The website is connected to the internet and can be accessed
`by a URL (uniform resource locator), which is a digital address to the website. The user interface for accessing the
`website via the internet is called web browser. A web browser is a software application that enables a user to display
`and interact with text, images, videos, music and other information typically located on web pages at a website on the
`internet or a local area network (LAN).
`[0003] Mobile phones access the fixed communication network and the websites via a radio interface. A popular
`interface uses the wireless application protocol (WAP). WAP is an open international standard for applications that use
`wireless communication. It allows the internet to be accessed from a mobile terminal or device, for example a mobile
`phone or PDA. A so called WAP browser provides all of the basic services of a computer-based web browser but is
`designed to operate within the restrictions of a mobile device, such as its smaller screen size. Via the WAP browser so
`called WAP pages can be downloaded from a website and displayed on the mobile phone. WAP pages are typically
`written in, or dynamically converted to wireless markup language (WML). However, a conventional WAP browser can
`also display pages composed e.g. by XHTML or CHTML. As the bandwidth of the radio interface increases with new
`technologies more and more protocols and computer languages are also implemented in the WAP browsers which are
`already used in the world wide web. In the following the terms "WAP page" and "WAP pages" are synonymously used
`with pages statically or dynamically composed by XHTML, CHTML, etc.
`[0004] Especially the young generation likes to individualize their phones with a special ring tone or original wallpaper.
`They interchange photos taken by themselves and download videos, full tracks (music songs) and so called video or
`computer games onto their mobile terminals. Multi-media content like ring tones, wallpapers, videos, video games and
`full tracks are provided by multi-media content providers, for example, via websites on the internet. This content is usually
`protected by a digital rights management system, i.e. the content is encrypted to prevent copying. While the communi-
`cation via a radio network is highly standardized, the multi-media content is provided under a multitude of different digital
`formats and sub-formats such as MP3, WMA, WAV, OGG, VOX, MPC, AVI, JPEG, PNG, GIF, TIF, WMV, 3GP, MPEG,
`TIVX, ASF, HTML, XML, WML, etc which are not always compatible with each other and the constructors of phones
`must limittheir phones to a small number of supported formats due to technical constraints. Thus, there is an incompatibility
`between systems providing content and mobile terminals as well as between different mobile terminals.
`[0005] A user who wants to download multi-media content onto his mobile telephone must therefore make sure that
`the digital format, in which the multi-media content is provided, corresponds to the formats supported by his mobile.
`Often, the user does not know the supported formats and the technical information given in the handbook of the mobile
`terminal may be insufficient.
`[0006] Content providers which offer multi-media content on such websites, also called portals, used to give a list of
`50 mobile phones which support the proposed content, i.e., which are compatible with the system. This does not solve the
`problem of incompatibility and not all users know the exact model they have, because the formats supported sometimes
`vary for the same model according to the version, i.e. the last software upgrade of the actual phone. Therefore, it happens
`quite often that multi-media content is bought by a user but cannot be displayed at the phone. It is also disappointing
`for the user to see an interesting content proposed and not being able to load it even after looking it up in a list. Additionally,
`there are still new digital formats arriving and new mobile telephone models with new features, so that these lists are
`not always up-to-date.
`[0007] Network operators sometimes give access to multi-media content via their own website and, as they support
`only a limited number of phones, they try to make sure that the multi-media content proposed is compatible with these
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`phones. Again, this does not solve the problem of incompatibility but helps only to bring together only compatible terminals
`with the system. This is of course not satisfactory as the user is limited in number of content and because the user is
`bound to his operator.
`[0008] The probably most frequently used method is "trial and error", i.e. uploading content which is afterwards not
`visible on the screen or which is not audible, in the case of a ring tone. This is a very frustrating and expensive solution
`for the user.
`
`Summary of the Invention
`
`[0009]
`It is an object of the present invention to provide a system and a method which are adapted to provide multi(cid:173)
`media content to a user of a mobile terminal wherein the compatibility problems between the multi-media content and
`the formats supported by his mobile terminal are reduced.
`[001 0]
`It is an aspect of the invention to provide a system and methods which automatically adapt themselves to the
`mobile terminal accessing the system.
`[0011]
`It is a further aspect of the invention to provide a system and methods which provide every individual user with
`a satisfactory access for choosing and downloading multi-media content independently of the mobile terminal used.
`[0012]
`It is another aspect of the invention to provide a system and methods for accessing, choosing and uploading
`multi-media content via a mobile terminal, which allows access to multi-media content independently of the mobile used
`for accessing and also independently from the network operator.
`[0013]
`It is still another aspect of the invention to provide a system and methods which allow an exchange of multi(cid:173)
`media content files between or through different, incompatible mobile terminals.
`[0014]
`It is yet another aspect of the present invention to provide an efficient way of providing information to mobile
`terminal, which is compatible with the mobile terminal.
`[0015] The above object and other problems are solved by the subject matter of the independent claims. Advantageous
`embodiments of the invention are subject matters of the dependent claims.
`[0016] One aspect of the invention is to provide a system for accessing multi-media content. The system is adapted
`to be accessed by a mobile terminal through a radio network. The system comprises storage means adapted to store
`a plurality of multi-media content files having different digital formats. The system further comprises a mobile terminal
`characterizing unit , which is adapted to provide mobile terminal capabilities information indicating at least one capability
`of the mobile terminal, and a matching unit, which is adapted to identify a subset of the plurality of multi-media content
`files having at least one specific digital format wherein the at least one specific digital format is supported by the at least
`one capability of the mobile terminal, wherein the system is adapted to provide the subset of the plurality of multi-media
`content files having the at least one supported digital format to the mobile terminal.
`[0017]
`In a preferred embodiment, the mobile terminal characterizing unit is further adapted to receive terminal iden-
`tification information from the mobile terminal and to provide the terminal capabilities information based on the terminal
`identification information, and wherein the matching unit is further adapted to identify the subset of the plurality of multi(cid:173)
`media content files based on the terminal capabilities information.
`[0018] Preferably, the mobile terminal characterizing unit further comprises a database, wherein the terminal capa(cid:173)
`bilities information is stored, and wherein the mobile terminal characterizing unit is further adapted to get the terminal
`capabilities information from the database corresponding to the terminal identification information. Alternatively, the
`terminal capabilities information is comprised in the terminal identification information.
`[0019] Furthermore, in the preferred embodiment the terminal capabilities information is a bit key of a specific length
`and the storage means are further adapted to store multi-media format information corresponding to each of the plurality
`of multi-media content files. Moreover, the matching unit is further adapted to identify the subset of multi-media content
`files by comparing the bit key with the multi-media format information. Additionally, the system further comprises receiving
`and transmitting means for receiving a request from the mobile terminal for specific multi-media content files, wherein
`the matching unit is further adapted to give the mobile terminal access only to a subset of the specific multi-media content
`files which have the at least one supported digital format. Alternatively, the system is adapted to provide no access to
`multi-media content files having digital formats which are not supported by the at least one capability of the mobile terminal.
`[0020] According to a further aspect of the preferred embodiment the mobile terminal characterizing unit is further
`adapted to identify a type and/or a model of the mobile terminal accessing the system based on the terminal identification
`information and to retrieve the terminal capabilities information from the database based on the identified type and/or
`model of the mobile terminal. Furthermore, the bit key can have a length of 256 bits and specific bit positions of the bit
`key represent specific capabilities of the identified type and/or model of the mobile terminal, wherein the multi-media
`format information has a length of 256 bits and specific bit positions of the multi-media format information correspond
`to specific digital formats, and wherein a specific digital format supported by a specific capability has the same bit position
`in the multi-media format information as the specific capability in the bit key.
`[0021] Another aspect of the invention is to provide a method for accessing multi-media content by a mobile terminal
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`through a radio network. The method comprises the step of storing a plurality of multi-media content files having different
`digital formats. Moreover, the method comprises the steps of providing mobile terminal capabilities information indicating
`at least one capability of the mobile terminal, identifying a subset of the plurality of multi-media content files having at
`least one specific digital format wherein the at least one specific digital format is supported by the at least one capability
`of the mobile terminal and providing the subset of the plurality of multi-media content files having the at least one
`supported digital format to the mobile terminal.
`[0022] According to a preferred embodiment of the method the step of providing mobile terminal capabilities information
`comprises the sub step of receiving terminal identification information from the mobile terminal, wherein the terminal
`capabilities information is provided based on the terminal identification information, and wherein the subset of the plurality
`of multi-media content files is identified based on the terminal capabilities information. The terminal capabilities information
`is stored in a database, and wherein the terminal capabilities information is received from the database corresponding
`to the terminal identification information. Alternatively, the terminal capabilities information is comprised in the terminal
`identification information.
`[0023] Furthermore, the terminal capabilities information can be a bit key of a specific length and the multi-media
`format information corresponding to each of the plurality of multi-media content files is stored e.g. in a database in relation
`to the plurality of multi-media content files. The subset of multi-media content files is identified by comparing the bit key
`with the multi-media format information.
`[0024] Additionally, features of the above mentioned preferred embodiment of the system can be further included in
`the preferred embodiment of the method according to the invention.
`In another preferred embodiment a further system for accessing multi-media content is provided. The system
`[0025]
`is adapted to be accessed by a mobile terminal through a radio network and comprises a database adapted to store
`multi-media content files in a plurality of different digital formats. The radio network may be a cellular network, for example
`GSM or UMTS. A mobile terminal characterizing unit is adapted to receive identification information from the mobile
`terminal indicating capabilities of the mobile terminal. A matching unit is provided, which is adapted to match digital
`formats supported by the capabilities of the mobile terminal with the digital formats of the multi-media content files.
`Further, the system is adapted to provide information to the mobile terminal based on a result of the match performed
`by the matching unit. In other words, the matching unit is adapted to match the digital formats which are supported by
`the identified mobile terminal with the digital formats in which the multi-media content is available. Thus, the mobile
`terminal is given access only to content which is available in a digital format which is supported by the mobile terminal.
`[0026] The system comprises at least one database in which a multitude of multi-media content files is stored in
`different digital formats. The database may get its content from several other databases. For each content file in the
`database the information is stored, in which digital format the content is available. The mobile terminal characterizing
`unit may be adapted to identify the mobile terminal model which accesses the system. The mobile terminal characterizing
`unit may also be further adapted to retrieve information from at least one data source and preferably from a plurality of
`data sources about the digital multi-media formats supported by each of the mobile terminals communicating in the radio
`network via which the terminals access the system. The characterizing unit may be further adapted to store the information
`retrieved.
`In preferred embodiments the database comprises a first database in which multi-media content is stored in
`[0027]
`one or more digital formats as delivered by a content provider. In general, the content in the first database will be protected
`against unauthorized reproduction by encryption and comprise, for example, full tracks, ring tones, SMS alerts, videos,
`graphics and so on. A second database is also preferably provided, which is adapted to receive multi-media content
`files via the radio communication network or a fixed communication network. Thus, users may upload private content
`files from their mobiles or personal computers. These personal content files, for example, photos taken by the mobile,
`digital photos stored on the hard disk of a personal computer or other contents may be not protected by digital right
`45 managements.
`[0028] When the system is provided with a second database for private multi-media content, the system preferably
`further comprises a transcoding cluster, which is adapted to transcode every uploaded private content file into all digital
`formats known by the mobile terminal characterizing unit. In this way, for example, a private photo taken by a digital
`camera in a first digital format is first uploaded to the system and then transformed or transcoded into all available digital
`formats and thus also into the digital format of the mobile of the user so he can transmit his photo to his phone. As the
`multi-media content files contained in the second database are not encrypted, transcoding is possible. In a preferred
`embodiment the transcoding cluster is adapted to scan continuously whether there is new content uploaded and to
`immediately start transcoding when new content is available. In the most preferred embodiment, a plurality of files of
`multi-media content can be transcoded in parallel by cloning the transcoding program automatically.
`[0029] Preferably, the mobile terminal characterizing unit and the first database with multi-media content store the
`information about the digital multi-media formats in a true/false manner.
`In the most preferred system, the mobile terminal characterizing unit is adapted to store the digital multi-media
`[0030]
`format information into a first bit field and the first database is adapted to store the digital multi-media format information
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`into a second bit field, wherein the first and the second bit fields have the same predefined length and structure. The
`two bit fields may each be 256 bits long, for example, so that 256 different digital multi-media formats can be stored by
`marking, for example, in the first bit field a "1" for a digital format supported by the mobile terminal. Furthermore, a "1"
`can also be marked in the second bit field for the multi-media content available in this digital format. The matching unit
`can then be adapted to compare the first bit field with the second bit field for matching the digital formats. If the two bit
`fields are structured in the same manner and contain all information about all digital formats an almost instantaneous
`verification is possible, whether the multi-media content can be visualized, played or heard with the mobile terminal in
`question, i.e. the mobile terminal accessing the system. This compatibility test is done in one step and is extremely rapid.
`Preferably, the mobile terminal characterizing unit further stores other information about the telephone as screen size,
`supported colors, support of wallpapers and other features.
`[0031] However, the bit fields, or at least one of the bit fields may be used in a different manner. For example, only a
`fragment or a part of the bit field may be used. Only specific bits of a bit field may be evaluated. The most significant bit
`(MSB) of a bit field or a fragment of a bit field may be evaluated by comparing the bit field of the respective fragment to
`a threshold value. The least significant bit (LSB) of bit field or a fragment may be evaluated by determining whether it
`is even or odd. The bit field may be represented in another format, as for example, hexadecimal or it may be filtered
`and evaluated thereafter. A portion of the bit field or the whole bit field may be extended for adding new formats in which
`the multi-media content should be available. Furthermore, a pointer may be set, so as to determine, which part of the
`bit field is to be used.
`[0032]
`In the preferred system, a dedicated storage area is provided for each user who is identified by his mobile
`terminal. The user can transfer content files or rather a link to a content file, from any of the databases into his dedicated
`storage area, where this transferred content may remain stored for an unlimited time. In the state of the art, a user who
`purchases for example a ring tone or a full track cannot preserve it outside of the mobile terminal. With a change of his
`terminal he loses his uploads. This is prevented with the dedicated storage area from which he can reload his ring tone
`after a change of terminal. Multi-media content which is stored in this dedicated storage area may even be shared with
`other users known to the user, as far as this is allowed by the digital right management. In this case, for example an
`SMS message will be sent to the friend user communicating an address from which the friend user can upload the shared
`content.
`[0033]
`In a preferred embodiment the system is a website on the internet for accessing multi-media content via a
`mobile terminal using a WAP interface. The website comprises a graphical user-system interface with a central page
`and a plurality of WAP trees, i.e. one ore more subsets of one ore more WAP pages, each WAP tree being accessible
`via a different address URL, wherein the central page comprises a dispatcher which is adapted to recognize the network
`operator and to direct the mobile terminal to the WAP tree specific for the recognized operator. Preferably, the website
`comprises a reference page which is adapted to provide a complete menu of the possible functions. Each WAP tree is
`adapted to inherit or to load the menu from the reference page unless there are changes to a menu that points specifically
`to this WAP tree.
`[0034] Preferably, the functions are in a modular form so that it is possible to easily add new functions. The WAP
`trees, which are the set or subset of WAP pages visible to the user, inherit functions newly added to the reference page
`automatically. Using a reference page from which all WAP pages inherit or load their functions allows a new WAP tree
`to be created, that is a new WAP page for example for another network operator, who may operate in a different country
`with a different language or with other cultural habits, in a short time. This very fast adaptation is possible because this
`new WAP page, i.e. this new graphical interface, will inherit all functions already created in the reference page.
`[0035]
`In a preferred embodiment, the website comprises a structure module in which the structure of the WAP pages
`is described in a MET A-language. Furthermore, a visualization unit is provided which translates the structure into a
`language which is supported by the mobile phone. Using a META-language inside a structure module allows the structure
`of the WAP page to be defined without regarding the capabilities of the different mobile terminals that access the website.
`If there are any changes to be made in the composition of the WAP page, for example a new button or a new line for a
`new function which has been added, there is no need to make this change in every specific WAP tree but only once in
`the structure module. The visualization unit will then translate the structure into the language supported and needed by
`the phone. While the reference page allows definition of the functions for all WAP pages, the structure module allows a
`definition of the composition of all WAP pages.
`[0036] Preferably, the visualization unit gets its information about the telephone model from the mobile terminal char(cid:173)
`acterizing unit.
`[0037] The invention further provides methods for accessing multi-media content by a plurality of different models of
`mobile terminals. The methods allow access and/or exchange of multi-media content files between different, incompatible
`55 mobile terminals.
`[0038]
`In one aspect of the invention, the method includes recognizing by a dispatcher unit the network operator of a
`mobile terminal connected to the interface of a system provided. Depending on the recognized network operator, the
`mobile terminal will be redirected to an interface specific to the recognized network operator. By using the inventive
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`method, the system is automatically adapted to the mobile terminal in terms of constraints due to the operator, which
`may be a limitation in bandwidth or functions.
`In another aspect of the invention, the method includes providing a system with a first database containing
`[0039]
`multi-media content in the form of multi-media content files and with an interface between the system and the radio
`communication network. For each multi-media content file a first bit field is created containing in a true/false manner the
`digital multi-media format of the multi-media content file and for each of the plurality of different models of mobile terminals
`a second bit field is created containing in a true/false manner the digital multi-media formats supported by each model.
`The model of the mobile terminal which is connected to the interface is identified and the second bit field corresponding
`to the identified model is matched with the first bit fields of the multi-media content files and access is given only to those
`10 multi-media content files which are in a digital multi-media format supported by the model of mobile terminal. By matching
`the first and second bit fields, all digital formats, in which content is available and which are supported by the mobile
`terminal, are identified in only one step. The system is thus adapted very rapidly to the capabilities of the mobile.
`[0040] The present invention also provides a method for exchanging multi-media content between at least two mobile
`terminals out of a plurality of different models of mobile terminals through a radio communication network. There is a
`system with an upload server, a transcoding cluster and a database. There is also an interface between the system and
`the radio communication network. The method comprises creating for each of the plurality of different models of mobile
`terminals a bit field containing in a true/false manner the digital multi-media formats supported by each model, and
`uploading a multi-media content file in a first digital format from a first model of a mobile terminal into the upload server.
`The upload server is scanned continuously for new uploaded multi-media content files. Every new multi-media content
`file detected is transcoded immediately into a plurality of files with different digital formats and the plurality of files are
`stored in the database. The model of a second mobile terminal which is connected to the interface is identified and the
`digital format supported by the identified model is looked up. The multi-media content is then downloaded to the second
`mobile terminal in a digital format supported by the second mobile terminal.
`[0041] The present invention provides also a dispatcher adapted to recognize a network operator and to redirect the
`25 mobile terminal to a specific WAP tree according to the recognized operator. In particular, the dispatcher can comprise
`a model view controller. In this regard, the dispatcher may further be adapted to select one of a plurality of WAP trees.
`Each of the plurality of WAP trees is adapted to be accessed via a different URL address. Furthermore, the dispatcher
`can be located on a central page of a website. The dispatcher is particularly adapted to select a specific WAP tree which
`is adapted to provide a link to a system for providing compatibility information for the mobile terminal. The compatibility
`information, to which the link is established, can preferably include a first bit field and a second bit field, wherein the first
`and the second bit field can have the same predefined length and structure. A first database can be adapted to store
`the digital multi-media format information into the second bit field.
`[0042] The dispatcher may form part of the above described system for accessing multi-media content.
`[0043] The mobile terminal characterizing unit may be adapted to identify the mobile terminal model which accesses
`the system. The mobile terminal characterizing unit may also be further adapted to retrieve information from at least one
`data source and preferably from a plurality of data sources about the digital multi-media formats supported by each of
`the mobile terminals communicating in the radio network via which the terminals access the dispatcher and thereby the
`system. The characterizing unit may be further adapted to store the information retrieved.
`[0044] The mobile terminal characterizing unit provided in combination with the dispatcher can be adapted to store
`the digital multi-media format information into a first bit field and the first database is adapted to store the digital multi(cid:173)
`media format information into a second bit field, wherein the first and the second bit fields have the same predefined
`length and structure. T