FR2816783A1 - Remote instantaneous transmission at 150 Mbytes per second of audio-visual data from a central point to an audio-visual data signal converter and display - Google Patents

Abstract

The central unit controls via a network display and access to at least a part of audio-visual data stored memory zone of audio-visual display system. The audio-visual device can be connected to wired or wireless data transmission networks to receive data from the central unit. The network connection allows interaction between device and central unit for sending a selection signal for one part in a group of audio-visual data stored at central unit. Audio-visual electronic device designed to receive from a remote central unit audio-visual data for broadcast on a display unit. Includes: (a) a network connection for linking with the central unit so as to receive audio-visual data from it; a memory zone to store data transmitted over the network; a audio-visual data reader which reads data stored in the memory zone and converts it into electrical signals, and; an electric signal transmission system which sends the read converted data to an audio-visual display where the signals are converted into images and sound. The system allows tele-loading into the memory zone of selected data stored in the central unit.

Description

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ELECTRONIC DEVICE, COMPUTER SYSTEM AND METHOD FOR THE REMOTE INSTANT AVAILABILITY OF AUDIO-VISUAL DATA.

 The present invention relates to the field of recreational services accessible by a multimedia system. More particularly, it relates to an electronic device, a computer system and a method for the instantaneous remote provision of audio-visual data.

 The remote provision of video and audio data is usually carried out by media rental stores, such as video cassette or versatile digital disc (DVD), on which data such as cinematographic works or festive events (including sports competitions and musical concerts). This type of service has the disadvantages for the consumer of having to comply with the store opening hours, of being able to choose the cinematographic work only from the range offered by the store (the extent of which depends on the storage capacity. of it), having to travel at least twice to the rental store (a first time to choose the work and pay the rental of the support, a second time to return the support) and possibly not be able to have audiovisual data because all the copies of the recording medium for this data have already been rented by the store to other customers. There are also pay-TV channels devoted to the broadcasting of cinematographic works or festive events, for example on the basis of a subscription type subscription, which have the advantage for the consumer of receiving the broadcast at home without any particular effort and the disadvantages on the one hand of not being able to freely choose the cinematographic work at all times but of having to comply with the program designed by the pay channel and on the other hand of being subjected to the legal constraint of a delay in the broadcast of the work, counted from the first broadcast in a cinema, longer for broadcast by television than for broadcast on recorded media.

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 There is therefore a need, not currently satisfied, for a system combining the instantaneous freedom of choice for the consumer of audiovisual programs, in particular cinematographic works or festive events, and the desire to receive, at a high transmission speed and directly at home or in any other place (when the viewing device is portable) such as private or public transport, public place (eg airport waiting room), etc., the audiovisual programs chosen for viewing. The present invention aims to solve this technical problem by providing a system for instantaneous remote provision of audio-visual data, such as cinematographic works or festive events.

By instantaneous within the meaning of the present invention is meant availability at all times but also independent of any programming external to the consumer, that is to say dependent only on the tastes and desires of each individual consumer at a given instant. The invention also aims to offer a system which is preferably perfectly secure both from the point of view of the delivery manager (the service provider) and from the point of view of the consumer, that is to say making it reasonably impossible. to: - copy, modify or, in general, reprocess fraudulently or illegally (from the point of view of respect for copyright or any other legal form of protection of the work) the audio-visual data made available provision of the consumer remotely, and / or - copy, modify or, in general, reprocess in a fraudulent or illegal manner (from the financial point of view or confidentiality) the data of the payment made by the consumer in exchange for the updating instant remote provision of audio-visual data.

 According to a first aspect, the present invention relates to an electronic device for the instantaneous remote provision of audio-visual data stored in a central unit and their transmission to a visualization / hearing device, comprising: - a system for networking the visualization / hearing device with the central unit to receive (in the form of electrical signals) data

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 audio-visuals transmitted (for example by means of a download program (software)) from said central, a memory zone, for recovering (for example in the form of binary data) and storing the audio-visual data received by via the networking system, a system for reading audio-visual data stored in the memory area, by converting them into electrical signals, and a system for transmitting electrical signals from the playback system to the visualization / hearing device where these signals are converted into image and sound.

Preferably, the main constituent elements of the electronic device according to the invention are defined as follows: the central unit includes a multimedia type computer library accessible by network, as well as a computer system capable of establishing a dialogue mode with users of said library . It therefore includes in particular a central computer capable of receiving (for example from recording media such as video cassettes or discs
DVD), store (in a memory zone or data storage unit on magnetic disk of sufficient size), sort (according to a program comprising pre-established sorting criteria as defined below, corresponding to the selection criteria of library user) and transmit (to a set of visualization / hearing devices connected to it by one or more networks) one or more sets of audio-visual data. The volume of this data, expressed in bits, can be extremely large and correspond to the digital expression of a set of several hundred, preferably several thousand, cinematographic works and / or festive events. The central unit's computer system includes a set of functions that can be displayed, via the networking, reading and transmission systems, in the form of independent pages on the screen of the visualization / hearing device, capable of structuring the mode. dialogue between the central and the users of the multimedia library. By way of nonlimiting examples of such pages

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 or functionalities, we can cite (a) a home page allowing the consumer to check that he is in communication with the desired service, to know the plan of the service managed by the central and if necessary to choose the language in which it will dialogue with the service, (b) a general information page indicating the nature of the services offered, the special rates and the legal conditions (in particular reminder of the principles of copyright) applicable, (c) a page for registration of the user for the service, enabling the central office to uniquely identify this user and define the payment characteristics (for example with or without opening a subscription, payment method and frequency, security code for the payment, etc.) chosen by the user for the services offered by the central office, (d) a page for access to personalized management of the user's customer account (including for example the rel statement of transactions recorded during a period of time of predetermined duration, the amount of credits possibly available under a loyalty system or special promotional conditions, etc. ), (e) one or more pages defining the contents and catalog of the contents of the multimedia library, preferably distributed by headings corresponding to the criteria of choice of the user, etc.

 - the viewing / hearing device can be any multimedia type device (that is to say capable of giving access at any time to any type of information: written, audio or visual) capable of reproducing the image and the sound of an audio-visual work with the quality and loyalty desired by the consumer. In particular, it can be a television receiver which can be connected to the transmission system by means of a scart socket. It can also be a personal computer (abbreviated PC) fixed or portable. Among portable devices, it can also be a mobile phone or, subject to providing it with speaker (s), a personal communicator / organizer (electronic agenda). In all cases, the device must include a screen with an image size and definition compatible with the viewing comfort expected of the consumer and at least one loudspeaker with a definition compatible with

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 the hearing comfort expected of the consumer. The electronic device according to the invention can, in particular in the case of portable multimedia devices and subject to miniaturization compatible with the dimensions of said device, form an integral part of it. the networking system is an electrical system, for example of the electrical interface type, suitable for a digital computer network and known to those skilled in the art for its capacity to receive and transfer audio-visual data at high speed, preferably in the form of binary information, to a viewing / hearing device through a memory area and a reading system. For example, the networking system can be a connection element to a physical means of data transmission (such as modem for connection to a public telephone network, twisted pair conductor, coaxial cable, single or multimodal optical fiber, etc. .) or a wireless data transmission means (such as a radio-based channel, for example infrared waves, radio waves, microwaves) allowing the viewing / hearing device to receive the data coming from the Central.

Whatever the practical embodiment chosen, the networking system is capable of receiving the audio-visual data from the central unit at a speed at least equal to approximately 10 Mbits per second, preferably at least approximately 50 Mbits per second, more particularly at least about 150 Mbits per second, and more preferably at least about 1
Gbits per second. According to a preferred embodiment of the present invention, the networking system allows interaction with the central, for example by being able to allow the consumer to send to the central, in real time, a selection signal d '' one element among all the audio-visual data stored in the control panel.
This selection may have been made by applying one or more pre-established data selection criteria whose property is to guide interactivity and facilitate choice. Thus for a cinematographic film, the proposed criteria could include the title of the film, the name of the director, the names of the performers, the theme of the film, etc .; for a sporting event,

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the criteria proposed may include the date, type of event, category of sport, etc .; for a musical concert, the proposed criteria may include the name of the festival, the date, the names of the musicians, etc.
As explained below, the selection will preferably be made under the control of a clock system. Since the information to be transmitted by the consumer to the central is usually of a size much smaller than the size of the data he receives from the central, the networking system can be provided with an asymmetric speed, c 'is to say a speed of data transmission to the central slower than the speed of reception of data from the central. According to another preferred embodiment of the present invention, the networking system comprises means for downloading to the memory area an element selected from all of the audio-visual data stored in the central unit. the memory zone can in particular be a digital semiconductor memory of sufficient size to recover and store a predetermined quantity of audio-visual data, for example as a function of the type of service provided to the user of the device. For example, if the authorized duration of availability (as defined below) is 24 hours, the memory zone may have a storage capacity corresponding to a number N of hours of audio-visual production . Typically, this storage capacity may be in a range between approximately 3 and 50 Gbits. Insofar as the device according to the invention is mainly intended for the provision of audio-visual data to individual consumers and for a limited period, it is therefore not necessary that the capacity of the memory area be very important.

 However, the present invention is not limited to a capacity memory area as defined above. the reading system and the transmission system are well known in this field of the art and must only be chosen in a manner suitable for the type of viewing / hearing device selected, such a choice being within the reach of ordinary skill in the art. 'art.

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 Given that the aim of the present invention is the secure provision (in particular from the point of view of respect of copyright) of audio-visual data for a limited period and in exchange for a payment the amount of which is usually Depending on this duration, it is important that the duration of provision is easily controllable both by the plant manager and by the end consumer. To this end, the device according to the invention preferably further comprises a system, controlled by the central unit via the networking system, allowing the deletion of, or the elimination of the possibility of access to, at least part of the audiovisual data stored in the memory area. The erasure or the suppression of access could be partial in particular in the case where the same consumer would have made requests for the provision of several series of audio-visual data either at the same instant but for different durations or for a same duration but at different times within this duration. In the case of a request for the provision of a single series of audio-visual data, naturally the suppression of access or the erasure will be total. For an easy implementation of this control of the provision, the device according to the invention preferably further comprises a clock system capable of detecting the instant from which the audio-visual data are actually made available. for reading on the viewing / hearing device and calculating, as a function of this instant and the duration of provision chosen by the consumer or fixed by the manager of the central unit, the instant when the provision must automatically to cease. For example, the clock system is capable of: - delivering a clock signal at the end of the download to the memory area of audio-visual data stored in the central unit, said signal defining an initial time to, - by slaving to the system for erasing, erasing, or suppressing access to, at least part of the audio-visual data downloaded after a predetermined period of time Tset counted from to.

 In order to ensure that the consumer has not allowed the Tset period to elapse without viewing / listening to the downloaded audio-visual data, the

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système d'horloge peut en outre prévoir un mécanisme de type minuterie permettant d'alerter le consommateur à un instant taler antérieur au temps ti défini par

Tdata étant la durée de visualisation/écoute des données audio-visuelles téléchargées. Pour le confort du consommateur, celui-ci peut être laissé libre de régler lui-même, soit au cas par cas soit de manière systématique, la période de temps s'écoulant entre talent et t1 Naturellement, Tset doit être prédéterminée de telle sorte que Tset > Tdata.

the clock system can furthermore provide a timer-type mechanism enabling the consumer to be alerted at a taler instant prior to the time ti defined by

Tdata being the duration of viewing / listening to the downloaded audio-visual data. For the convenience of the consumer, he can be left free to adjust himself, either on a case-by-case basis or systematically, the period of time between talent and t1 Naturally, Tset must be predetermined so that Tset> Tdata.

 According to a preferred embodiment, the device according to the invention further comprises a receiving cell capable of communicating, for example by infrared radiation, with a remote control member (remote control). Indeed, the consumer can communicate with the central, in particular when the viewing / hearing device is a television receiver, by intervening not on the electronic device itself but by means of a remote control device of the type terminal capable of receiving its instructions in connection with the provision of audio-visual data, in particular (but not limited to): - consultation of the catalog, or of a part of the catalog, of audio-visual data available from the central , - the selection, by application of one or more pre-established criteria as defined above, of one or more series of audio-visual data for viewing / hearing among those available in the catalog, - downloading of data audio-visuals selected in the memory area, - the choice of the Tset duration of availability, - the choice of the payment method, - the choice of the instant alert alert, as well as - any other parameter that could prove useful for the interactive and efficient operation of the service.

 To this end, the remote control device (remote control) may include a set of keys in a number necessary and sufficient to

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 ensure all the functionalities left to the choice of the consumer, as recalled above. Certain functionalities may, in particular to facilitate the search for selection by the direct use of key names (name of director or performer) or keywords (sport category, etc.), require the use of a numeric, alphabetic or alpha-numeric keyboard. Such a keyboard should therefore preferably be present at least in part on the remote control member, unless the visualization / hearing device already has one (case of mobile phones and personal communicators / organizers or electronic calendars). Otherwise, the selection search may proceed through a menu system offering pre-established questions and answers from which the consumer can choose, according to menu techniques well known in the field of telematics.

 According to a preferred embodiment, the device according to the invention comprises or is associated with a payment system for the instant provision of audio-visual data. This may consist of a slot for the introduction of a payment card, for example of the magnetic type, housed on the device itself or else on the viewing / hearing device.

This latter embodiment is particularly advantageous when the device according to the invention is an integral part of a portable viewing / hearing device, such as a mobile telephone, already designed to accept such a payment system. The payment system can also consist of a functionality or page displayed on the screen of the viewing / hearing device asking the user to indicate, by means of the remote control unit or, where appropriate, the keyboard of the viewing / hearing device, the characteristics of its payment card (identification number, expiration date).

 In the latter case, in order to secure payment for the instantaneous remote provision of audio-visual data, the electronic device according to the invention may also include a payment control system carried out by means of the payment system, the recovery of audio-visual data in the memory area being then activated only after a check

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 positive (satisfactory), that is to say, meeting pre-established acceptance criteria, of payment for the provision of this data. As an example, the payment control system may include a security network connected to an external circuit (comprising input unit and display unit), a security circuit, a data management circuit and a circuit. data interface, the assembly operating as follows. When entering a data request via the input unit: - the external circuit delivers the data request and transmits it to the security network, - the security network checks the request for authorization and transmits it to the data management circuit if the control carried out has led to an authorization of the external circuit for the data management circuit, the data management circuit delivers a message to the security network in order to access the data originating of the data interface circuit if the check carried out has led to an authorization of the external circuit for the data interface circuit, - the data interface circuit transmits the data which it has accessed to the data management circuit by via the security network, and - the data management circuit transmits the data to the external circuit via the security network.

 Preferably, each circuit transmits identification information and the security network checks, for each data transfer carried out by said circuit, whether the identification of the circuit is in accordance with information in memory pre-recorded during a procedure of authorization. During said procedure, the security network reads identification information from the external circuit and the security circuit checks the identification information and issues an access authorization which is stored in the security network. According to a particular embodiment, at the time of the first connection to the external circuit to the security network, the latter sends a key to the external circuit which codes the identification information according to the key and transmits the coded identification information to the network of security. Of

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 preferably, the security network transmits the coded identification information received with the key to the security circuit which decodes the identification information and performs a security check.

 Usually in this type of electronic device, it preferably comprises a microprocessor (or central processing unit) in connection with the networking system, the memory area, the reading system and, where appropriate, the erasure system, the clock system, the receiving cell, the payment system and / or the payment control system, for processing the information originating from each of these elements and controlling their operation.

 According to a second aspect, the present invention relates to a computer system for the instantaneous remote provision of audio-visual data stored in a remote central, said system comprising: - a computer networked with the central to download audio data - visual from said central to a specific location in the memory area of the computer, - a first program loaded into the computer allowing the reading of the downloaded audio-visual data and their transfer to a display screen and a device for hearing, the download format can only be read by this first program, - a second program loaded into the computer to prevent any reproduction, distortion, mutilation or modification of the audio-visual data downloaded, that is to say to ensure respect for copyright in the work corresponding to these data, and - a third program cha stored in the computer and allowing, after a predetermined period of time Tset, the automatic erasure of, or the elimination of the possibility of access to, at least part of the audio-visual data stored in the memory area of the 'computer.

 The remote central office of this computer system is defined similarly to the central office of the electronic device constituting the first aspect of the invention. Networking of the computer with the central unit is carried out by any means as described concerning the system for networking the device.

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 electronics constituting the first aspect of the invention and meets the same technical requirements, in particular in terms of speed of reception by the computer of audio-visual data originating from the central. Conventionally, the computer is of the personal computer (PC) type comprising a memory area (such as a hard disk), a central processing unit and a clock system as well as a display screen, a device hearing system (such as a set of speakers and a sound card) and a connection element to the control panel network. According to a first embodiment of this computer system, the display screen is that of the computer which must then also include a hearing device (such as a set of speakers and a sound card) playing the role of the hearing system. According to another embodiment of this computer system, in particular when the user wishes to benefit from a better visual and / or sound quality than that of his personal computer, the display screen can be that of a television receiver, for example a high definition receiver, or a cinema screen. For this purpose, the computer must be connected either directly to a digital cinema projector or else to a television receiver (in the latter case the computer equipped with a television card reads the audiovisual data and transfers the image and the sound at the television receiver is indirectly via an electronic device as described above with respect to the first aspect of the invention, said device itself being connected to the television receiver, in which case the computer reads the audio-visual data and transfers it to the television receiver via the electronic device. As with the first aspect of the invention, it is not necessary that the capacity of the memory area of the computer be very large, a capacity of storage corresponding to a number N of hours of audio-visual production, for example in a range of between approximately 3 and 50 Gbits, being most often sufficient.

 Advantageously, the first program, the second program and the third program are loaded into the computer from the central unit in the form of a multi-program kit.

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 As in the first aspect of the present invention, the computer system may further comprise a system for paying for the instant availability of data. This system may consist of a slot for the introduction of a payment card, for example of the magnetic type, this slot being formed in a box connected to the computer. It can also, in the case of a connection to a site housed on the Internet (as explained below) consist of a functionality which asks the user to indicate the characteristics of his payment card (number, date expiration), in which case the computer system according to the invention preferably further comprises a payment control and security system as described previously in the first aspect of the invention.

 The computer system constituting the second aspect of the invention is of more particular interest when the remote central unit is associated with a site ("website") of the internet network. In this case, the user accesses the multimedia library of the control panel by first connecting to the internet network and then to said website, on which it circulates using the various functionalities described about the control panel as well as, if necessary , certain features specific to the Internet, such as the possibility of links to other websites in connection with the services offered by the central, for example sites allowing to obtain additional information on cinematographic works or festive events made available instant.

 According to a third aspect, the present invention relates to a method of instantaneous remote provision of audio-visual data, executable by a computer under the control of at least one program stored in said computer, comprising: - storage, in the memory zone of a central computer, of a set of audio-visual data constituting a multimedia library, - the networking of this central computer with at least one terminal provided with a memory zone and a means of selection of audio-visual data within the multimedia library,

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la sélection d'une donnée audio-visuelle à l'intérieur de la bibliothèque multimedia grâce au moyen de sélection du terminal, le téléchargement de la donnée audio-visuelle sélectionnée par l'ordinateur central vers la zone-mémoire du terminal, et - l'effacement de, ou la suppression de la possibilité d'accès à, la donnée audio-visuelle stockée dans la zone-mémoire du terminal après une période de temps prédéterminée Tset.

the selection of audio-visual data inside the multimedia library by means of selection of the terminal, the downloading of the audio-visual data selected by the central computer to the memory area of the terminal, and - l erasing or deleting the possibility of access to the audio-visual data stored in the memory area of the terminal after a predetermined period of time Tset.

- la délivrance d'un signal d'alerte à un instant taler antérieur au temps ti

défini par ti = to+ Tset-Tdata, Tdata étant ! a durée de visualisation/écoute

de la donnée audio-visuelle téléchargée, - t'envoi d'instructions à l'ordinateur central par l'intermédiaire d'un organe de commande à distance capable de communiquer avec le terminal, le terminal communique, à travers un système de lecture de donnée audio-visuelle, avec un appareil de visualisation/audition recevant des signaux électriques en provenance dudit système de lecture, l'appareil de visualisation/audition pouvant être un récepteur de télévision, un téléphone mobile ou un organiseur personnel (agenda électronique).The method according to the invention may also comprise one and / or the other of the following preferred embodiments: - payment for the provision of the audio-visual data selected after the selection step and before the 'download step, - control of payment for the provision of the audio-visual data selected after the payment step and before the download step, - the delivery of a clock signal at the end of the downloading of the audio-visual data selected to the memory area of the terminal, said signal defining an initial time to from which the period Tset is counted,

- the issuance of an alert signal at an instant taler prior to time ti

defined by ti = to + Tset-Tdata, Tdata being! duration of viewing / listening

audio-visual data downloaded, - sending instructions to the central computer via a remote control unit capable of communicating with the terminal, the terminal communicates, through a system for reading audio-visual data, with a viewing / hearing device receiving electrical signals from said reading system, the viewing / hearing device being able to be a television receiver, a mobile phone or a personal organizer (electronic agenda).

Claims (12)

 CLAIMS 1. Electronic device for the instantaneous remote provision of audio-visual data stored in a central unit and their transmission to a viewing / hearing device, comprising: - a system for networking the viewing / hearing device with the central unit for receiving audio-visual data transmitted from said central unit, - a memory zone for retrieving and storing the audio-visual data received via the networking system, - a data reading system audio-visual stored in the memory area, by converting them into electrical signals, and - a system for transmitting electrical signals from the reading system to the viewing / hearing device where these signals are converted into an image and in sound, said system allowing the downloading to the memory area of an element selected from the set of audio-v data stored in the power plant. 2. Electronic device according to claim 1, characterized in that it further comprises a system, controlled by the central via the networking system, allowing the erasure of, or the elimination of the possibility of access to at least part of the audio-visual data stored in the memory area. 3. Electronic device according to one of claims 1 and 2, characterized in that the networking system is an element for connection to a physical means of data transmission or else a means of wireless data transmission allowing the device to receive data from the central. 4. Electronic device according to one of claims 1 to 3, characterized in that the networking system allows interaction with the central unit by being <Desc / Clms Page number 16>  capable of sending to the central unit a signal for selecting an element from all of the audio-visual data stored in the central unit.

5. Electronic device according to one of claims 2 to 4, characterized in that it further comprises a clock system capable of delivering a clock signal at the end of the download to the memory area of stored audiovisual data in the central unit, said signal defining an initial time to, and by slaving the system to erase, or to suppress access to, at least part of the audio-visual data downloaded after a predetermined period of time Tset counted from to. 6. Electronic device according to one of claims 1 to 5, characterized in that the networking system is capable of receiving audiovisual data at a speed at least equal to 150 Mbits per second. 7. Electronic device according to one of claims 1 to 6, characterized in that it further comprises a receiving cell capable of communicating with a remote control member. 8. Electronic device according to one of claims 1 to 7, characterized in that it comprises or is associated with a payment system for the provision of audio-visual data. 9. Electronic device according to claim 8, characterized in that the payment system consists of a slot for the introduction of a magnetic type payment card. 10. Electronic device according to claim 8, characterized in that it further comprises a payment control system made by means of the payment system and in that the recovery of audiovisual data in the memory area is not activated only after a positive check of the payment for the provision of this data. <Desc / Clms Page number 17> 11. Computer system for the instantaneous remote provision of audio-visual data stored in a remote central, said system comprising: - a computer networked with the central to download audio-visual data from the remote central to a specific location in the memory area of the computer, - a first program loaded into the computer allowing the reading of the downloaded audio-visual data and their transfer to a display screen and a hearing device, the download format can only be read by this first program, - a second program loaded into the computer to prevent any reproduction, deformation, mutilation or modification of the audio-visual data downloaded, and - a third program loaded into the computer and allowing, after a predetermined period of time Tset, the automatic deletion of, or the deletion of the possibility access to at least part of the audio-visual data stored in the memory area of the computer. 12. A method of instantaneous remote provision of audiovisual data, executable by a computer under the control of at least one program present in said computer, comprising: the storage, in the memory area of a central computer, of a set of audio-visual data constituting a multimedia library, the networking of this central computer with at least one terminal provided with a memory zone and a means of selecting audio-visual data inside from the multimedia library, - the selection of audio-visual data inside the multimedia library, <Desc / Clms Page number 18>  - the downloading of the audio-visual data selected by the central computer to the memory area of the terminal, and - the deletion of, or the elimination of the possibility of access to, the audio-visual data stored in the area -memory of the terminal after a predetermined period of time Tset,