US20100146278A1 - Multimedia arrangement - Google Patents

Multimedia arrangement Download PDF

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Publication number
US20100146278A1
US20100146278A1 US12/663,029 US66302908A US2010146278A1 US 20100146278 A1 US20100146278 A1 US 20100146278A1 US 66302908 A US66302908 A US 66302908A US 2010146278 A1 US2010146278 A1 US 2010146278A1
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Prior art keywords
multimedia
remote control
data
multimedia equipment
pair
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Abandoned
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US12/663,029
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English (en)
Inventor
Ferdinand Maier
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FM Marketing GmbH
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FM Marketing GmbH
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Publication of US20100146278A1 publication Critical patent/US20100146278A1/en
Abandoned legal-status Critical Current

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    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42212—Specific keyboard arrangements
    • H04N21/42218—Specific keyboard arrangements for mapping a matrix of displayed objects on the screen to the numerical key-matrix of the remote control
    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42222—Additional components integrated in the remote control device, e.g. timer, speaker, sensors for detecting position, direction or movement of the remote control, microphone or battery charging device
    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • 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
    • H04N21/441—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card
    • H04N21/4415—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card using biometric characteristics of the user, e.g. by voice recognition or fingerprint scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4821—End-user interface for program selection using a grid, e.g. sorted out by channel and broadcast time
    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42212—Specific keyboard arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
    • H04N21/4751—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for defining user accounts, e.g. accounts for children

Definitions

  • the invention concerns a multimedia arrangement with a remote control, multimedia equipment, and a display device for operating multimedia home electronics.
  • a remote control for a set-top box which can be personalized for the specific user, which is done using biometric features of the user, such as, for example, a fingerprint reader, a voice recognition circuit, an iris scanner, a “sniffer”, or a face-recognition device.
  • biometric features of the user such as, for example, a fingerprint reader, a voice recognition circuit, an iris scanner, a “sniffer”, or a face-recognition device.
  • the specific user can also be required to provide a password, a specified keying sequence, or the like.
  • a set-top box and other home entertainment equipment such as a video recorder, CD player, DVD player, and so on, can be controlled with a single remote control in one family or household.
  • the personalization and thus most of the functions are automatically turned off when no button on the remote control has been operated for a predetermined period of time or if the set-top box or a TV is turned off. It can also be provided that each push of a button or specific function is performed only when the finger-print reader has at the same time also identified an authorized person. As a further possibility, it can also be provided that all or at least several buttons on the remote are fitted with a fingerprint reader.
  • the patent WO 02/084991 A1 likewise describes a remote control which can be personalized for an interactive television system. There, it is primarily a matter of assigning buttons programmed for the specific user, in order to reduce the number of buttons. Additional functions such as, for example, “Open garage door”, can be implemented. For several users, a table can be stored, on which the assignment of individual buttons can be set up for predetermined user-specific functions. By pressing a specific button, a menu is called up, on which all users are shown and a specific user can be selected. No security measures are provided there to prevent someone from logging on under a user name that is not assigned to him.
  • the U.S. Pat. No. 5,861,881 describes an interactive computer system for multimedia operation in which a user profile can be stored. This can be done both on a local computer or a host computer of a network. This computer system can also, for example, be connected to a remote transmitter by cable. Using this compiled user profile, specified data or video content can be selected.
  • the U.S. Pat. No. 5,715,020 describes a remote control which can control a large number of devices. Each remote has a clearly identified code. A central control unit for several remotes is thus able to identify the individual remote and assign to it specific devices to be controlled remotely.
  • the patent WO 2004/055717 shows a multimedia system with a remote-control unit, which exhibits a finger-print reading unit, for the remote control of a set-top box, to which a television is connected.
  • the set-top box is connected over a network to a remotely located server.
  • the set-top box establishes a connection to the remote server only when an authorized user has been identified on the remote by the fingerprint reader.
  • US patent 2003/0001907 A1 describes a method and equipment for controlling an electronic device.
  • fields are represented in a column and in a row, in which the rows and the columns intersect in a focus field.
  • the fields of a column and the fields of a row can be moved separately.
  • the column field and the row field found in the focus field are combined to bring about a predefined action.
  • a variable number on the menu level is provided whereby, if need be, the elements placed in the focus field call up the next menu level. The user thereby still retains an overview, and additional information is displayed in fields adjacent to the focus field on the respective menu level.
  • US 2002/0043557 A1 describes a multimedia system with a remote control which identifies a special memory card related to the equipment to be controlled.
  • Multimedia systems with remote control and the highlighted representation of selectable actions are also known from WO 03/021915 A2, U.S. Pat. No. 6,690,391 B1, and WO 03/043318 A1.
  • buttons buttons, with which specific functions are selected. Different functions can even be assigned to individual buttons for each user. This has the result that most users generally use only a limited number of functions. Besides, personalization also is complicated to accomplish. With most equipment, a menu is called up using a personal “menu” button, which displays several main functions and, in part, on various highly-staggered submenus, the individual functions available.
  • the multimedia arrangement according to the invention has a remote control that can be personalized, which exhibits an identification device, multimedia equipment controllable by the remote control which is, for example, a so-called set-top box and display equipment attached to this multimedia equipment which, for example, is an image screen, a so-called “beamer”, a monitor, or the like.
  • the multimedia equipment contains a microprocessor and a programmable memory connected to it, which contains a “user database” in which a large number of data are stored, the individual users are identified, their specific “rights” are assigned, and an individual configuration set for the multimedia equipment, which is then depicted on the display equipment.
  • the user database can be both arranged in the multimedia equipment itself or entered remotely, for instance by a service provider, and be called up there over a network.
  • the multimedia arrangement is so designed and configured that the remote control needs only six control functions, namely four “direction functions” for “On”, “Off', “Left”, and “Right”, one selection function, and one “Back” function.
  • the functions named can be called up using the buttons of a keyboard on the remote control.
  • buttons other input devices can also be used, such as, for instance, a so-called touch screen, which triggers the corresponding functions based on predefined finger motions or the like on the touch screen.
  • a voice-activated control is possible or control using sensors, which records the motions of the user's hand or the like. All the functions of the multimedia equipment can be selected using three menu levels, which are laid out abstractly and hierarchically as follows:
  • the elements of the individual menu level are arranged according to a type of matrix with vertical columns and horizontal rows, while all the remaining elements are not taken into consideration.
  • each element is defined by its column and row coordinates, and as a result, it assigns both a row and a column. If only one row and only one column are represented, then one field is presented, which lies just at the intersection of column and row and which is designated in the following as a “focus field”, in which one focus element is therefore found.
  • This focus field is located on all menu levels and is always in an unalterable, predefined location on the display equipment for all functions, and as a result it is fixed.
  • the location so specified for the focus field can be changed, depending on the previously identified user. For example, in the Culture area, where the focus field is described and read from right to left, it is desirable to place the field in a location other than the Culture area where it is read from left to right. In the latter Culture area, the location of the focus field is preferred in the lower left corner of the display equipment.
  • the elements of the columns are “moved” upward or downward so that, for instance, on the first menu level, the actual subject group is visible in the “focus” element, whereby the element of the subject group is then visible on the first menu level in the horizontal row and can be moved by performing the “Left” or “Right” motion function in the “focus” element.
  • the selection function By operating the selection function, the subject group found in the “focus” element can then be selected and the second menu level activated, which also has the analogous arrangement or representation for elements in columns and rows.
  • a subject in the “focus” element is moved, it is selected using the selection function, and the third and last menu level appears, which again has elements arranged analogously in columns and rows, in which the “focus” element then designates the action to be taken with the subject selected, which is activated by operating the selection function.
  • Substantial simplification and simple operation resulting therefrom is obtained by “personalization”, whereby the entire system is configured for an individual user, in which a user profile is laid out.
  • an identification device containing biometric data for one person, such as, for example, a finger-print reader
  • the individual person is first identified, whereupon a user profile established previously for the identified person is called up, which is stored in a user database.
  • the user database contains not just access authorization, but menu systems assigned to the individual person as well, which, for instance, contain a limited number of desired television stations, that the individual user can select when setting up his user profile.
  • menu systems assigned to the individual person which, for instance, contain a limited number of desired television stations, that the individual user can select when setting up his user profile.
  • the number and order of television stations generally displayed on the menu system are substantially reduced, because the unwanted TV stations are not displayed at all. With this reduction in the only elements generally displayed on the individual menu system, the consistent use of the three menu systems mentioned above is clear, and the overall system is freed
  • Programmable remote controls can be obtained on the market which can read in and store data transmitted from an authentic remote control, so that it is possible to identically copy an authentic remote control and consequently log in with the copied remote control onto the multimedia equipment as an unauthorized user and to perform all the functions and as a result also to circumvent the identification device available on the remote control, such as a fingerprint reader, for instance, because the data ascertained from the identification device is sent by wireless mode to the multimedia equipment and thus can be read in by an unknown remote control.
  • an authentic remote control so that it is possible to identically copy an authentic remote control and consequently log in with the copied remote control onto the multimedia equipment as an unauthorized user and to perform all the functions and as a result also to circumvent the identification device available on the remote control, such as a fingerprint reader, for instance, because the data ascertained from the identification device is sent by wireless mode to the multimedia equipment and thus can be read in by an unknown remote control.
  • SIM Subscriber Identity Module
  • SIM cards have proven themselves a million times over, are inexpensive to obtain, and are considered to be an extremely secure and reliable means of encryption.
  • SIM cards also have the advantage that data can be stored on them, and as a result, pre-settings can also be transmitted to other equipment, for example if a device is defective.
  • the invention proposes that the identification device of the remote control transmit the data read in to the multimedia equipment and evaluation of these data take place first in the multimedia equipment. If the identification device is, for example, a fingerprint reader, it reads in the image data of a fingerprint, and then these unevaluated image data are transmitted to the multimedia equipment and are evaluated there first and compared with the data stored in the user database.
  • the identification device is, for example, a fingerprint reader, it reads in the image data of a fingerprint, and then these unevaluated image data are transmitted to the multimedia equipment and are evaluated there first and compared with the data stored in the user database.
  • these image data should certainly be encrypted, whereby preferably an asymmetric encryption method is carried out upon using the SIM card.
  • an asymmetric encryption method is carried out upon using the SIM card.
  • the following data are stored on the SIM card:
  • the SIM card When setting up a connection between the remote control and the multimedia equipment, the SIM card reads in the biometric data for the user, adds to these the personal identification code and the other key of the second pair of digital keys, and sends a data packet so constructed, with the other, encrypted key of the first pair of digital keys to the multi-media equipment.
  • the multimedia equipment decrypts the encrypted data record received with the stored one key of the first pair of digital keys, extracts therefrom the other key of the second pair of digital keys, the personal identification code, and the biometric data.
  • the biometric data read in was compressed before making the data record; preferably this was done according to Huffman coding.
  • the data record to be transmitted from the remote control to the multimedia equipment is block-encoded and is preferably provided with forward error correction.
  • the multimedia equipment also has a reader for a SIM card, in which according to a variant of the invention a connection set up between the remote control and the multimedia equipment is possible only if a related pair of SIM cards is available in both sets of equipment.
  • the remote control can first store all relevant data on the SIM card found therein, whereupon the SIM card is then taken from the remote control to the multimedia equipment, in order to read in the relevant data there.
  • the SIM card is only used for the configuration and can be removed for further operation of the remote, whereby a configuration is possible only with a SIM card available.
  • multimedia arrangement is to be understood here in a broad sense and does not just involve entertainment and communications media but also the control of equipment and machinery in general.
  • various equipment can be connected to the multimedia arrangement, monitored, and/or controlled.
  • it can operate, for example, surveillance cameras, door-opening equipment, systems found in a house such as, for instance, heating systems, air-conditioning systems, lighting systems, alarm systems, and garden-watering systems, or communications systems such as telephone, fax, and Internet access, or other equipment as well, such as a kitchen stove, refrigerator, or the like.
  • the multimedia equipment is universal equipment, which can also perform monitoring and control functions.
  • FIG. 1 a basic circuit diagram of a multimedia arrangement according to the invention
  • FIG. 2 a representation of a menu level
  • FIG. 3 a flow chart to explain the initialization of a connection between the remote control and the multimedia equipment.
  • FIG. 4 a flow chart to clarify an identification process between remote control and multimedia equipment.
  • FIG. 1 shows a remote control 1 , which controls multimedia equipment 2 , in which display equipment 3 , such as an image screen, for instance, is connected to the multimedia equipment 2 .
  • the remote control 1 has a keyboard 4 , which exhibits only six control keys, namely four movement buttons 5 , 6 , 7 , and 8 for the directions “On”, “Off', “Left”, and “Right”, as well as a confirmation button 9 , which triggers a selection function, and a “Back” button 10 .
  • the keyboard 4 is connected in the usual manner to a microprocessor 11 , to which at least one memory 12 , a SIM-card reader 13 , a identification device 14 , and a send/receive unit 15 are attached.
  • a keyboard instead of a keyboard, as mentioned above, other input devices can be used.
  • the term “keyboard” with movement buttons hence illustrates only one possible example.
  • the remote control 1 can establish a wireless communications link with the multimedia equipment 2 using the send-receive unit 15 , which is indicated by an arrow 16 . Customarily, this is done by means of an infrared signal.
  • the multimedia equipment 2 has a corresponding send/receive unit 17 , which is connected to a microprocessor 18 . Because of that, it is indicated that, between the remote control 1 and the multimedia equipment 2 , both a bidirectional communications link is possible, as well as a monodirectional communications link, in which data are transmitted only from the remote control 1 to the multimedia equipment 2 , but not in the opposite direction.
  • the microprocessor 18 here has a substantially higher performance than the microprocessor 11 of the remote control 1 .
  • a memory 19 connected to the microprocessor 18 is a memory 19 , whereby this memory 19 either has itself an area designated as a “user database” 20 or an additional memory 20 is attached which contains the user database.
  • the user database 20 can also be disposed externally to the multimedia equipment and, for example, can be set up by a remotely located service provider, whereby the multimedia equipment 2 can access the user database over a network.
  • a SIM-card reader 21 is connected to the microprocessor, as well as one or several input/output interfaces 22 , as well as further optional, peripheral equipment 23 such as a hard drive, for instance, as well as a video card 24 for processing video signals for the display equipment 3 , which is, for example, a TV cathode-ray tube, an image screen, a beamer, or other equipment for depicting moving pictures, for instance.
  • peripheral equipment 23 such as a hard drive, for instance
  • a video card 24 for processing video signals for the display equipment 3 , which is, for example, a TV cathode-ray tube, an image screen, a beamer, or other equipment for depicting moving pictures, for instance.
  • various devices can be connected, for example a telephone line, a DSL (broadband) connection, a radio link, a television receiver, a television antenna, and further peripheral equipment, such as, for instance, a video recorder, a DVD player, a CD player, a personal computer, a video camera, or other equipment found in a household, which can be controlled by the multimedia equipment 2 .
  • DSL wireless local area network
  • peripheral equipment such as, for instance, a video recorder, a DVD player, a CD player, a personal computer, a video camera, or other equipment found in a household, which can be controlled by the multimedia equipment 2 .
  • the SIM-card reader 13 and the identification device 14 are provided on the remote control 1 .
  • the remote control 1 is clearly identified and unauthorized remote controls are differentiated from others.
  • a particular person is identified using the identification device 14 .
  • a preferred identification device 14 is a fingerprint reader integrated into the remote control 1 , which reads in the image data of a user's fingerprint, as will be explained further below, and which is compared with data stored in the user database 20 in order to identify an authorized user.
  • the microprocessor 18 calls up from the user database 20 a user profile stored there for the respective user, using which the multimedia equipment 2 is personalized for the user logged in, in which are established, for example, access authorization, broadcast times, selected television stations, etc., which then appear on the display equipment 3 .
  • the microprocessor 18 In collaboration between the microprocessor 18 , the user database 20 , and a program memory 19 , all the possible functions are made accessible on only three menus, whereby the three menu levels are set up hierarchically as follows:
  • FIG. 1 is clarified in detail using FIG. 1 as an example of a TV program. If the user has been identified, then he can be indicated on the display equipment 3 in a separate field 30 on menu level 1 . A cross-shaped image of the fields appears on the display equipment 3 , to be precise, the fields 31 arranged vertically in a column and fields arranged horizontally in a row 32 , in which, at the intersection of the column fields 31 and the row fields 32 , a so-called focus field 33 is formed which can be selected using the confirmation button 9 on the remote control 1 .
  • the basic functions in the column field 31 are selectable, such as, for instance, Basic set, TV, View videos, View photos, Play audio files, etc., in which the selection and the arrangement of the fields is already personalized for the user indicated in the field 30 . All the elements of the columns 31 can be moved upward or downward using both buttons 5 and 6 , so that only one element is always visible in the focus field 33 .
  • the function “TV” is selected.
  • the television station available to the user who is logged in then appears in the row fields 32 .
  • the desired station can then be moved into the focus field 33 and selected by operating the selection button 9 .
  • the second menu level appears, on which the programs are displayed for the TV station selected, which are visualized using the electronic program guide (EPG) that is broadcast nowadays by most stations, in which a chronological grouping is set in the column fields 31 of columns according to day of the week and/or time of day, such as morning, afternoon, or evening and the individual program is displayed in the row fields 32 , including the broadcast time, if needed.
  • EPG electronic program guide
  • the program found in the focus field 33 can then be selected with the confirmation button 9 , whereupon the third menu level appears.
  • the possible actions are displayed, such as, for instance, to View now, Record, or Program. Many different fields appear for each number of functions available.
  • the selection and arrangement of the individual elements are also coordinated for the user. So, for example, on the first menu level at the menu item “TV”, the selection and arrangement of possible stations is laid out individually for a specific user, in which the station watched most often by the respective user is displayed in the focus field 33 , where this also depends on the day of the week and/or the time of day. This can also be adjusted “dynamically”, without the user having to actively enter the appropriate data into the user database 20 . If, for example, an authorized user watches a specific station more often on one particular day of the week, this “preference” is stored in the user database 20 , and on the appropriate day and hour the appropriate station and the action are placed in the focus field 33 .
  • buttons on the keyboard and the three menu levels which are kept consistent for all possibilities on the equipment, the operation of the multimedia arrangement is substantially simplified and the hardware-related expense of the remote control is reduced by the small number of buttons.
  • the user no longer has to remember a large number of button functions and different button positions.
  • functions not desired by him or not released to him can be suppressed at the outset, and he can easily find his way around the three menu levels.
  • the selection from the first menu level is restricted at the second menu level in order to select a subject.
  • This XML command shows several metadata ([info]) which are used to populate the content field.
  • the subject has already been selected, so that the action to be carried out with the subject is still to be selected.
  • FIG. 2 shows the structure of a matrix with fields A 1 through K 23 .
  • An image-screen area B designates a visible area in which the entire matrix can be adjusted so that just one detail can always be depicted in the image-screen area B.
  • the image-screen area only one column, here with fields B 13 through B 23 , and one row with fields A 22 through G 22 are made visible, while all the other hatched fields represented are suppressed.
  • the field B 22 which defines the focus field. This focus field contains, as shown above, all the necessary commands on the corresponding menu level. The whole matrix is moved using the movement functions.
  • the field B 22 contains, at each menu level, either the commands to call up the next lower menu level or, at the last menu level, the step described above to execute the respective action. It is important that each field contain all the necessary information. Also, no associations have to be made between partial functions of a column and partial functions of a row. All fields on a menu level, as represented in FIG. 2 , consequently lie at the same hierarchical level (menu level) and are addressable by means of the movement functions, that is, they can be moved in the focus area.
  • further information can be inserted, such as, for instance, a title and short description of a TV program, a preview of photos, or the like.
  • the SIM cards are inserted into the SIM-card reader 13 of FIG. 1 at a step 40 .
  • the SIM cards contain the following stored data:
  • the SIM card further contains the following accessible data:
  • the PubK 1 and PrivK 1 keys form a first
  • the PubK 2 and PrivK 2 form a second, pair of keys, which are used for encryption and decryption.
  • So-called asymmetric cryptography is used for this, in which one key of one of the pairs mentioned, usually the so-called public key, is used for encryption of data, and the other key of the pair, usually the so-called private key, is used for decryption.
  • different keys are used for encryption and decryption.
  • Decryption of data with the key used for encryption is not possible.
  • the algorithms for encryption and decryption are known, in principle.
  • the PIN is then retrieved (step 41 ), which is entered by means of the keyboard 4 ( FIG. 1 ) with the direction buttons in combination with the fields 31 and/or 32 of the display equipment 2 and is customarily a four-digit number.
  • the SIM card is released, and the personal data mentioned above and the first private key PrivK 1 blocked by the PIN are accessible.
  • the remote control 1 then sends the first private key, PrivK 1 (step 42 ) and the second public key PubK 2 (step 44 ) using the send/receive device 15 to the multimedia equipment 2 , where they are received by the send/receive device 17 and are stored in memory 19 by the microprocessor 18 (steps 42 - 45 ). Thereupon, the biometric data of the user are read in using the fingerprint reader 14 ( FIG. 1 ) (step 47 ) and transmitted to the multimedia equipment 2 (step 48 ), where they are encrypted (step 49 ) with the previously received and stored public key PubK 2 .
  • the personal identification code is retrieved from the SIM card and transmitted to the multimedia equipment 2 (step 50 ), where it is also encrypted with the public key PubK 2 (step 51 ). Consequently, the personal data of the user are either retrieved from the SIM card or entered using the keyboard 4 and transmitted to the multimedia equipment 2 (step 52 ), where they are also encrypted with the second public key PubK 2 in step 53 .
  • the second public key PubK 2 which is stored in the multimedia equipment 2 in step 45 , is erased, after these processes, in step 54 .
  • a user profile, made up of the stored and partially encrypted data, is then set up and stored in the user database 20 , containing the following data:
  • the user can add still further data to the personal data, such as, for instance, a channel listing of preferred TV channels, button positions for buttons on the remote control, blocked TV channels, TV times, and so on.
  • the initialization process described is classified as critical as long as the first private key PrivK 1 is transmitted by wireless mode and as a result can be “bugged”, if a suitable receiver is within range. With infrared transmission, the danger of a suitable receiver being in range, though, is very small, because the range is severely limited and an uninterrupted line-of-sight connection is required.
  • High security is, however, provided afterward because the remaining data are encrypted with the public key PubK 2 , which is erased in the multimedia equipment 2 after initialization, and these data cannot be decrypted with the first private key PrivK 1 .
  • the private key PrivK 1 can also be erased on the SIM card, so that it can be called a “more private” key, which is still only available to the equipment.
  • the biometric data of the user are read in a step 55 , for example, as the user lays a finger on the finger-print reader 14 , which reads in the corresponding image data.
  • These image data can be compressed in a step 56 , which is done according to known data-compression methods, such as, for instance, Huffman coding.
  • step 57 These compressed image data are added in a step 57 to the personal identification code PIC, which is read out either from the SIM card or from the memory 12 ( FIG. 11 ). Furthermore, the second private key PrivK 2 is added in step 58 , which is also read out either from the SIM card or from the memory 12 .
  • This entire data packet consists of the compressed biometric data, the PIC, and the key PrivK 2 .
  • This data packet is encrypted with the first public key PubK 1 in a step 59 .
  • block encoding and so-called “forward error correction (FEC) can be optionally performed (step 60 ).
  • the data so produced are transmitted to the multimedia equipment 2 over the radio link 16 (step 61 ) and received by the multimedia equipment 2 (step 62 ). There, these data are first decrypted (step 63 ) with the private key PrivK 1 stored in the user database 20 , whereupon a data record is obtained (block 64 ) with the PrivK 2 , PIC, and biometric data, from which the second private key PrivK 2 is extracted in step 65 .
  • the biometric data and the PIC are temporarily stored in a cache memory 19 .
  • the data stored in the user database in step 66 and encrypted with the public key PubK 2 before storage namely the PIC, the biometric data, and the personal data
  • the PIC's are compared first. If these do not agree, the data received from an authorized remote control are not authorized, so that further operational steps can be called off. If necessary, a request is created for repeat transmissions, which, for example, is displayed on an image screen of the TV equipment or transmitted as a return signal to the remote control 1 over the radio link 16 and is displayed there.
  • the biometric data are compared (step 67 . 1 ) and if they agree, the microprocessor 18 emits a release signal in its output to the interface 22 (step 69 ). Then secure, authorized operation of the multimedia equipment 2 and of the further equipment attached to it can be carried out using the remote control 1 .
  • a receipt signal for a successful log-on is also transmitted over the radio link 16 of the remote control 1 , which erases sensitive data in the memory 12 in the remote control 1 , in particular the biometric data recorded.
  • the data to be compared are also erased in the memory 19 of the equipment 2 , so that the memories 12 and 19 of the remote control 1 and of the equipment 2 are again in their initial state after successful log-on. Then normal operation is established between remote control 1 and multimedia equipment 2 , which can also be bidirectional.
  • the authorized connection be cut off after a predetermined length of time and a new log-on be performed, according to the steps described in connection with FIG. 3 . It can also be provided that for specific, security-relevant control processes, a new identification be made, for example, by transmitting name, address, or credit-card number over the communications equipment connected.
  • user rights can also be granted with the personal data of the particular user, for example, related to setting up or changing user profiles, so that, for instance, only specified persons who are identified by their biometric data are authorized to set up new users in the user database or to change the rights assigned to particular individual users.
  • Other data which are also stored in the personal data can, on the other hand, be so arranged that the individual user can freely change them, after his identification, such as, for example, the button position on the remote control or favorite lists of individual TV stations, insofar as these are decontrolled.
  • a very high level of security is attained with the invention. If the equipment itself gets into the hands of unauthorized persons without a SIM card, it is not possible to get hold of the protected biometric data and the protected personal data. Only if an unauthorized person has the equipment and the SIM card at his disposal is it then theoretically possible to decrypt the protected data stored in the user database 20 with the first key PubK 1 stored on the SIM card. For this, the user must then have immediate access to the user database 20 , which requires a highly technical effort.
  • the manufacturer can provide that the corresponding memory be protected such that either no access is possible from outside or its content is automatically erased if an attempt is made to remove it from the memory. In any case, it is recommended to purge the memory containing the user database before handing the equipment over to third parties.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Databases & Information Systems (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • User Interface Of Digital Computer (AREA)
  • Selective Calling Equipment (AREA)
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PCT/EP2008/004440 WO2008148533A1 (fr) 2007-06-04 2008-06-04 Système multimédia

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EP2001223B1 (fr) 2016-09-21
CA2690022A1 (fr) 2008-12-11
EP2001223A1 (fr) 2008-12-10
CA2690022C (fr) 2013-11-26
WO2008148533A1 (fr) 2008-12-11
US20150058887A1 (en) 2015-02-26
US9445146B2 (en) 2016-09-13

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