Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
  • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
  • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
  • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
  • G06V40/12—Fingerprints or palmprints
  • G06V40/13—Sensors therefor
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/4104—Peripherals receiving signals from specially adapted client devices
  • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
  • H04N21/4182—External card to be used in combination with the client device, e.g. for conditional access for identification purposes, e.g. storing user identification data, preferences, personal settings or data
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
  • H04N21/4183—External card to be used in combination with the client device, e.g. for conditional access providing its own processing capabilities, e.g. external module for video decoding
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
  • H04N21/4184—External card to be used in combination with the client device, e.g. for conditional access providing storage capabilities, e.g. memory stick
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
  • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
  • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
  • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
  • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
  • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
  • H04N21/43635—HDMI
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
  • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
  • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
  • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
  • G06V40/50—Maintenance of biometric data or enrolment thereof
  • G06V40/55—Performing matching on a personal external card, e.g. to avoid submitting reference information

Definitions

• the invention relates to the field of devices for broadcasting visual and audiovisual content.
• US 2014/0156791 and US 2009/0141894 discuss this subject.
• a wireless connection between the source equipment and the display equipment is preferable.
• visual content here means text, image and / or video documents, optionally accompanied by audio content.
• any interruption or failure of the wireless connection may interrupt the dissemination of content .
• Display equipment such as televisions and video projectors are generally not equipped with a buffer and associated software that is sufficient to maintain the continuity of the broadcast in case of interruption of the wireless connection.
• Systems such as equipment known under the trade name "Chromecast" broadcast content using a third party wireless network (Wifi). Such systems therefore have the aforementioned defects.
• the use of a third-party wireless network to exchange content data poses security problems that remain a barrier to use in a business context, especially when the user must use a wireless LAN. for which he can not check the security level.
• this type of system requires a permanent power supply.
• Devices including an internal memory on which the contents to be broadcast are stored are intended to be physically connected to the display equipment. Such devices can sometimes be controlled remotely, for example by means of a remote control via an infrared receiver. No data is transmitted wirelessly from such a device. Such devices are generally bulky and therefore poorly adapted to mobility lilies must be powered by an external power source (sector or via USB). In addition, such devices are provided primarily for broadcasting videos and not text documents or still images. Generally lacking an operating system, updating of software components is impossible, which prevents compatibility with file formats that were not initially planned. The data that is stored on such devices must be stored in clear (unencrypted) to be broadcast at will via a display equipment to which the device is connected. In case of loss or theft of the device, the confidentiality of the data is compromised.
• the invention improves the situation.
• a content delivery device on an external display equipment and comprising:
• USB universal serial bus
• HDM1 Multimedia High Definition Interface
• the processing unit is arranged to implement a data acquisition mode and a media streaming mode and control of said broadcast.
• the data acquisition mode includes:
• Media Streaming Mode includes: to decipher the data encrypted and recorded on the data storage device,
• the internal battery is arranged to power the components of the device in broadcast mode.
• Such a device is self-powered in energy and can broadcast visual content to third-party display equipment via a video input, such as an HDMI port, without the need for the content data to transiting from a remote source device during broadcast.
• the broadcast remains controllable by a remote device (not physically connected to the device).
• the content data is present on the storage device in a decrypted state only during their own broadcast and briefly upon receipt.
• the data is stored in encrypted form the rest of the time, including while streaming other content. Encryption and on-the-fly decryption of data can be made automatic, so that data remains secure without user-specific action.
• the software components of the device including the operating system, can be updated, for example, to extend the device's compatibility to unintended data formats in the design and manufacture of the device.
• the device is scalable.
• the device further comprises a biometric sensor.
• the processing unit is further arranged to implement an authentication step via the biometric sensor, the result of the authentication step conditioning the implementation of the step of decryption of the data recorded on the device. The security of the stored data is thus improved, in particular in case of loss or theft of the device.
• the processing unit is further arranged to implement the broadcast mode independently of any control equipment external to the device.
• a third-party device for the control is thus unnecessary, which is particularly advantageous in a context of nomadic use.
• the device further comprises a functioning indicator. This makes it easy to identify, for example visually, the origin of a problem and / or the state of charge of the integrated battery.
• the device further comprises a screen type electronic paper.
• a small screen and low power consumption allows to display basic information directly on the body of the key.
• the data storage device comprises a memory dedicated to visual, audiovisual and / or multimedia content data, or a portion of memory dedicated to visual, audiovisual and / or multimedia content data.
• the dedicated storage device facilitates the encryption of data and the software update.
• the device can also be used as a standard USB key, facilitating the use by users who are used to such keys.
• the processing unit is further arranged to allow a direct data exchange between:
• a wireless communication module of the device and a source equipment and / or
• the Applicant proposes a method of broadcasting content on an external display equipment comprising a first set of data acquisition operations and a second set of operations for broadcasting media flows and for controlling said data acquisition equipment. diffusion, the two sets of operations being implemented by the same device.
• the first set includes:
• the second set includes:
• the Applicant proposes a computer program comprising instructions for implementing a data acquisition mode and a method of broadcasting media flows and controlling said broadcasting by a device as defined above. before when this program is executed by a processor of said device.
• the data acquisition mode includes:
• Media Streaming Mode includes:
• FIG. 1 shows a general view of a device according to the invention
• FIG. 2 shows a functional representation of components of the device of FIG. 1;
• FIG. 3 shows the cooperation of a device according to the invention with third-party equipment.
• FIGS. 1 and 3 show an embodiment of a device 1.
• the device 1 is designed to broadcast content on an external display device, for example here an external screen 6 and / or a video projector 7, known in as such.
• the display equipment has at least one input adapted to receive an input stream, for example a video stream, so that the display equipment displays the visual content, and, where appropriate, broadcasts the video.
• the device can be provided for broadcasting audiovisual content, multimedia or content of a single type for example only visual content.
• the device 1 here has a general form of key ("key” or “stick” in English), also called “dongle”.
• the device 1 comprises:
• USB Universal Serial Bus
• an output connector 4 here of the High Definition Multimedia Interface (HDMI) type, for example an HDMI male connector type A,
• HDMI High Definition Multimedia Interface
• At least one wireless communication module 110 at least one wireless communication module 110, 111, 112, and
• Output connector 4 as a Type A male HDMI port provides mechanical compatibility with a large number of existing display devices without the need for an adapter.
• optional standards and protocols may be supported such as Display Data Charnel (DDC) and / or Consumer Electronics Control (CEC).
• the output connector 4 may be of another form compatible with the transmission of a video stream, for example mini-HDMI (type C), micro-HDMI (type D), or still be compliant with d other standards / standards than HDMI, eg DisplayPort, Thunderboltl, USB 3.1 and combinations of such standards.
• Input connector 2 as a Type A USB port provides mechanical compatibility with a large number of existing source devices, including computers, without the need for an adapter.
• the input connector 2 is further used as a socket for charging the internal battery 101.
• the input connector 2 may be of another form, for example USB mini-AB or micro-AB, or be in accordance with other standards than USB.
• the input connector 2 may alternatively be absent.
• the reception of the content data by the device 1 from a third-party equipment can be ensured by means of at least one of the communication modules 110, 111, 112 and / or by means of a communication module without additional thread.
• at least one of the modules of wireless communication 110, 111, 112 is used as input interface of the content data of the device 1.
• other means known as such are implemented to allow the recharging of the internal battery 101, such as a dedicated port and / or an induction loop or magnetic resonance for wireless charging.
• the device 1 comprises a single USB port, used alternately as an input connector 2 and as an output connector 4 (and optionally as a socket for charging the internal battery 101).
• the USB port complies with recent standards for the transmission of a video stream, for example a type C connector and according to USB 3.1 or later.
• the device 1 can be included in a kit further comprising one or more adapters for adapting the connectors 2 and 4 to various ports.
• the device 1 furthermore comprises a biometric sensor 3, here in the form of a fingerprint sensor, and an operation indicator, here a visual indicator in the form of a fingerprint sensor.
• a biometric sensor 3 here in the form of a fingerprint sensor
• an operation indicator here a visual indicator in the form of a fingerprint sensor.
• a set of diodes making it possible to represent, at least, the charge level of the battery 101.
• the device 1 comprises a screen, for example of the electronic paper type, making it possible to display parameters of the key.
• the device 1 has at least two modes of operation: a data acquisition mode and a media streaming mode and control of said broadcast.
• output connector 4 is unused. Data can be exchanged between the device 1 and the source equipment to which it is connected, for example via the input connector 2 and / or via one of the wireless communication modules 110, 111, 112 .
• FIG. 2 shows schematically the functional elements of the device 1 and their interactions.
• FIG. 2 is not representative of the physical organization of the elements of the device 1. For example, two functional elements shown separately in FIG. 2 can be implemented by a common hardware component of the device 1.
• the device 1 comprises an internal part 100.
• the equipment of the device 1, for example the connectors 2, 4, the biometric sensor 3, the operation indicator 5, and the battery 101 are connected to the internal part 100.
• internal 100 is, for example, housed in a housing.
• the connectors 2, 4, the biometric sensor 3 and the operating indicator 5 are at least partly accessible from outside the housing of the device 1.
• the inner portion 100 is arranged to provide an output signal through the output connector 4 based on visual content data stored in the data storage member 143, and optionally based on received control data. via a communication module 110, 111, 112.
• the inner part 100 of the device 1 comprises, here:
• the inner portion 100 may take the form of an electronic card receiving a set of components, including those mentioned above.
• the operating system 140 there is the operating system 140, the data storage device 143 for receiving content data to be displayed and the flash memory 141 for storing other types of data.
• these different types of data can be stored on non-transient recording media analogous to each other, or even be stored on the same medium.
• a single memory may be partitioned to separately store operating system data 140, the data of content to display and other data.
• a partition can be seen as a data storage device 143.
• the processing unit 130 may also be called a controller.
• the processing unit 130 comprises at least one processor, for example in the form of a system on a chip or "SoC" for "System on a Chip". All the electronic components of the device are connected to the processing unit, in particular the data storage device 143.
• the processing unit 130 controls and manages all the electronic components and executes the software functions of the device 1. The Since device 1 is intended to be regularly connected to source computer equipment, the software components of device 1, including operating system 140, can easily be updated, including wirelessly.
• the communication modules 110, 111, 112 allow the device 1 to adapt to various environments. For example, certain categories of electromagnetic waves may be proscribed in particular environments.
• the plurality of communication modules makes it possible to adapt at will the communications means implemented by the device 1.
• the device 1 comprises:
• NFC Near Field Communication
• a very short-range communication module 111 that is to say a range generally less than 20 meters, for example of the Bluetooth type,
• a short range communication module 112 that is to say a range generally less than 100 meters, for example of the Wifi type.
• a communication module compatible with a Low Power Wide Area Network (LPWan) type network is provided.
• LPFan Low Power Wide Area Network
• the energy management module 103 is arranged to control the charge of the battery 101 via the input connector 2 here.
• the energy management module 103 is arranged so as to supply power to the battery 101. in energy the other components of the device 1, especially in diffusion mode.
• the battery 101 and the energy management module 103 allow the device 1 to continue to operate independently of the availability of an external power source, especially in broadcast mode.
• the device 1 can be provided to be recharged by an external source, for example when temporarily connected to the USB port of a computer.
• the processing unit 130 is arranged to implement a data acquisition mode and a media streaming mode and control of said broadcast.
• the data acquisition mode includes:
• the device 1 receives data, in particular visual content data to be displayed later on a display equipment 6, 7.
• the data are encrypted upon receipt by the processing unit 130, and are then permanently stored in encrypted form on the data storage device 143.
• the data received in the clear (unencrypted ) are stored temporarily on reception by means of the working memory RAM 142. Then, the data in clear is deleted as soon as a corresponding encrypted version is stored in the data storage device 143.
• the use of the device 1 in Data acquisition mode and the user's point of view is similar to that of a common USB drive. If the source equipment allows the copying of data to external media, for example via USB, then there is no need to install an additional software component on the source equipment in order to use the device 1 in data acquisition mode. The data that is transferred to the device 1 is automatically encrypted. Thus, in case of loss or theft of the device 1, the data are better protected.
• the device 1 is provided so that the user imports the data to be displayed before the broadcast, and preferably by a direct physical connection of the device 1 on its own source equipment, typically a computer. Thus, the data does not pass through a third-party network during the broadcast. Nevertheless, the device 1 can be arranged to be able to receive moreover data from a remote (wireless) source equipment, for example means of the wireless communication modules 110, 111, 112.
• the import of the content data from the source equipment to the device 1 can be performed upstream, before the broadcast.
• G import can be performed simultaneously with the broadcast.
• a direct connection between the device 1 and the source equipment is preferred. By direct connection is meant here in the absence of a third party equipment such as a router.
• the source equipment is then arranged to transmit data to the device 1 independently of third party network, for example by generating itself a dedicated local network, such as a Wifi network, for example known as "Wifi direct".
• Figure 3 shows a device 1 and its interactions with third-party equipment in broadcast mode.
• Media Streaming Mode includes:
• a stream is continuously transmitted to a display equipment 6, 7 from the device 1 and via the output connector 4.
• the output signal, or stream, is drawn from content data. stored on the data storage member 143.
• the processing for converting the content data as stored into a signal capable of being broadcast on the fly by the display equipment 6, 7 is obtained by processing / operations computer implemented by the processing unit 130 of the device 1.
• decryption, conversion and transmission are done on the fly.
• sections of broadcast content are decrypted, converted and then transmitted as needed and when necessary for broadcast.
• the clear version content (unencrypted) is not stored permanently on the device 1.
• control of the broadcast is performed by a user from a control device 8, for example a remote third party device.
• the control includes, for example, usual operations such as the choice of the media to broadcast, "playback", "pause", control of the sound volume, etc.
• a laptop a tablete or a smartphone (“smartphone") is used interchangeably as a control equipment 8.
• the source equipment used in data acquisition mode can become the control equipment 8 in broadcast mode.
• the control equipment 8 may comprise a remote control, or any other control device.
• the data exchanged between the control equipment 8 and the device 1 may be only command type data and be devoid of content data.
• the consequences for security in case of interception of the data exchanged during the broadcast are low or even zero.
• Such a device can be used in a professional context to facilitate collaboration between several people, especially when it is desirable to use display equipment without connecting a computer containing sensitive data.
• Such devices can advantageously replace local networks and cables generally made available to occasional users of a meeting room.
• access to the data on the device 1 may be conditioned to a prior identification of the user.
• the NFC 110 and / or Bluetooth 111 module can be used to detect an identification badge.
• the biometric sensor 3 is connected to the processing unit 103 for the implementation of detection and identification of the user. Access to the data and / or the triggering of the broadcast mode may be subject to the prior recognition of a legitimate user.
• the identification and authentication of a user are here implemented by means of a fingerprint reader. As a variant, other biometric sensors are used, instead of or in addition to the fingerprint reader.
• the device 1 can also be used in broadcast mode in the absence of an external source of energy, for example connected only to the HDM1 port of a screen.

Landscapes

• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Human Computer Interaction (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Computing Systems (AREA)
• General Engineering & Computer Science (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
• Circuits Of Receivers In General (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=62067618

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (14)

• 2017
  • 2017-12-19 FR FR1762484A patent/FR3075542B1/fr active Active
• 2018
  • 2018-12-12 EP EP18814648.4A patent/EP3729815A1/de not_active Withdrawn
  • 2018-12-12 CN CN201880088708.3A patent/CN111713114A/zh active Pending
  • 2018-12-12 KR KR1020207017836A patent/KR20200100655A/ko not_active Application Discontinuation
  • 2018-12-12 WO PCT/EP2018/084602 patent/WO2019121255A1/fr unknown
  • 2018-12-12 US US16/955,473 patent/US20200374581A1/en not_active Abandoned

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