WO2013160320A1 - An electronic educational device comprising a user recognition unit - Google Patents

An electronic educational device comprising a user recognition unit Download PDF

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Publication number
WO2013160320A1
WO2013160320A1 PCT/EP2013/058420 EP2013058420W WO2013160320A1 WO 2013160320 A1 WO2013160320 A1 WO 2013160320A1 EP 2013058420 W EP2013058420 W EP 2013058420W WO 2013160320 A1 WO2013160320 A1 WO 2013160320A1
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WO
WIPO (PCT)
Prior art keywords
user
identity information
educational device
electronic educational
user identity
Prior art date
Application number
PCT/EP2013/058420
Other languages
French (fr)
Inventor
Osman Yilmaz
Engin MONGU
Osman Osman
Ramazan ISIK
Cengiz Berkay
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2013160320A1 publication Critical patent/WO2013160320A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G06F16/43—Querying
    • G06F16/438—Presentation of query results
    • G06F16/4387—Presentation of query results by the use of playlists
    • G06F16/4393—Multimedia presentations, e.g. slide shows, multimedia albums
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
    • G06F21/35—User authentication involving the use of external additional devices, e.g. dongles or smart cards communicating wirelessly
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • 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

Definitions

  • the present invention relates to an electronic educational device comprising a user recognition unit and the control method thereof.
  • the blackboards and the marker boards used in educational institutions, in meetings and seminars have given place to electronic educational devices in the course of time.
  • the state of the art electronic educational devices generally comprise a writing surface that performs the function of the blackboard and/or marker board and a displaying means whereby the electronic content supporting the mentioned subject is shared with the listeners.
  • a large number of contents are recorded in the memory of the electronic educational device by different users to be displayed on the displaying means and it becomes difficult for the user to find the document he/she is searching.
  • unauthorized users can easily access the memory of the electronic educational device besides course and conference hours and therefore information safety is at risk.
  • the people not skilled enough to use the electronic educational device may use the electronic educational device, resulting in impairment of the electronic educational device.
  • JP2010052410 an electronic blackboard device is described wherein the writing surface can be utilized only by specified users authorized by a password.
  • the writing surface is activated after the user enters the password.
  • an electronic blackboard device that comprises a magnetic card reader.
  • the user swipes the card having magnetic strip through the magnetic card reader when he/she desires to transfer content from the screen memory to the storage memory.
  • the transfer operation can only be made after user verification operation is realized.
  • an electronic blackboard device that comprises a fingerprint sensor.
  • the confidentiality of information entered on the writing surface is provided by performing a user identification process.
  • the aim of the present invention is the realization of an electronic educational device wherein confidentiality of information is provided and utilization of which is facilitated.
  • the electronic educational device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a memory, a displaying means whereon the contents saved in the memory are displayed and a user recognition unit.
  • the people authorized to use the electronic educational device are previously identified by a system administrator and user profiles are created for these people in the memory wherein content and settings belonging to these users are stored.
  • the user recognition unit When the user is detected by the user recognition unit, the user profile associated with the respective user is activated. Thus, the user can easily access the content belonging to him/her.
  • the user recognition unit comprises a database having a user list containing the users with access authorization to the electronic educational device.
  • the identity information of the users is located in the user list.
  • the user recognition unit furthermore comprises a reader.
  • the reader detects the identity information of the user. The user is recognized by comparing the identity information detected by the reader with the identity information in the user list.
  • the users utilize identity cards comprising a radio-frequency identification (RFID) tag in order to identify themselves to the electronic educational device and the reader can read these tags.
  • RFID radio-frequency identification
  • the user holds up his/her card towards the reader, providing the user recognition process to be performed and afterwards starts to use the electronic educational device.
  • the user recognition process can be made quickly and easily by means of the radio-frequency identification (RFID) system.
  • the biometric features of the users are contained in the user list as the identity information.
  • the reader is a sensor that is suitable for detecting the biometric information of the user.
  • the electronic educational device comprises a writing surface.
  • the writing surface is a blackboard and/or a marker board.
  • the data written on the writing surface by means of a pen are converted into an image file by being scanned by means of at least one scanner situated preferably on the corners of the writing surface.
  • the information written on the writing surface is made suitable for being processed and shared.
  • the generated image file is saved into the profile of the currently active user and the user can easily access the file via the user profile when the respective file is desired to be reviewed later on. Consequently, not only the information entered into the writing surface is prevented from being lost and also easy access to this information is provided.
  • the generated image file is transmitted to listeners having wireless receiver devices present in the environment by means of a wireless transmitter contained in the electronic educational device.
  • the users having preferably wireless tablet computers can display the data on the writing surface on their tablet computers.
  • the control unit controls the date information in the system after the user is identified and brings the content the respective user is expected to use at that date on the display screen.
  • the user that will give education about different subjects on predetermined dates is saved from the trouble of searching for content before every session.
  • the content that will be displayed on the display screen for each date is predetermined and the user can easily access the content relating to the conference/course that will be given on that date upon identifying himself/herself to the electronic educational device.
  • the user recognition unit detects the user identity information by means of the reader and compares it with the identity information in the user list and actuates the displaying means if the user identity information matches with any of the identity information in the user list. Consequently, the displaying means is prevented from remaining open when the electronic educational device is not in use and this provides energy saving.
  • the electronic educational device is provided to be used only by predetermined users and the authorized users are enabled to easily access their respective contents and settings.
  • Figure 1 – is the schematic view of the electronic educational device.
  • the electronic educational device (1) suitable to be used by multiple users comprises
  • the contents contained in the memory (2) are selected by the user depending on the subject of the lesson or the conference to be given, and transferred to the displaying means (3) and the respective subject is provided to be taught easily.
  • the user recognition unit (4) provides the identification of the person that will use the electronic educational device (1) ( Figure 1).
  • the electronic educational device (1) of the present invention comprises a control unit (5) that provides a user profile (P) to be saved for each user including at least the preferable contents and/or user specific settings of the displaying means (3) on the memory (2) and provides activation of the user profile (P) corresponding to the respective user saved in the memory (2) when the user is identified by the user recognition unit (4).
  • the user whose user profile (P) is activated can see the content only belonging to him/her, even though the contents belonging to all the users authorized to use the electronic educational device (1) are contained on the same memory (2).
  • both the content searched by the user can be easily located and also the safety of information is provided.
  • the settings of the displaying means (3) like brightness, contrast, color etc. belonging to the user are automatically adjusted when the user is identified and the necessity for the user to reset the respective parameters at each time of utilization is eliminated. Consequently, the time that is used for adjusting the settings of the displaying means (3) is saved every time the electronic educational device (1) is operated.
  • the user recognition unit (4) comprises a database (6) wherein a user list (L) including user identity information of the users authorized for access and a reader (7) that provides the detection of the user identity information.
  • the user recognition unit (4) identifies the user by comparing the user identity information received by means of the reader (7) with the user identity information included in the user list (L).
  • the electronic educational device (1) is provided to be used in a controlled manner.
  • the reader (7) is adapted for detecting the information on the radio-frequency identification (RFID) tag wherein the user identity information is saved.
  • RFID radio-frequency identification
  • each user owns a card that includes the radio-frequency identification (RFID) tag whereon his/her identity information is saved.
  • the reader (7) reaches the user identity information by analyzing the radio-frequency identification (RFID) tag and compares it with the user identity information in the database (6).
  • RFID radio-frequency identification
  • the reader (7) is adapted for detecting the biometric information of the user.
  • the reader (7) is preferably a fingerprint detection unit. After being detected, the fingerprint of the user is compared with the fingerprints in the database (6) and the user is identified.
  • user identification process is performed without requiring the user to carry an additional device. Furthermore, the risk of user identity information being stolen or lost is eliminated and the use of the electronic educational device (1) by unauthorized people is prevented.
  • the electronic educational device (1) comprises at least one writing surface (8) suitable for writing on by the user with a writing instrument (W) and a scanner (9) that generates a file (F) by scanning the writing surface (8).
  • a writing instrument W
  • a scanner 9
  • storing and/or sharing the information on the writing surface (8) becomes easy by being transferred into the electronic environment.
  • control unit (5) saves the file (F) generated by the scanner (9) in the user profile (P) of the currently active user.
  • the user can access the information written on the writing surface (8) whenever desired.
  • loss of information is prevented.
  • the electronic educational device (1) comprises a wireless transmitter (10) which is suitable for transmitting the file (F) generated by the scanner (9) to the listeners in the auditorium.
  • the listeners having an electronic device comprising a wireless receiver can access the information on the writing surface (8) without needing to rewrite this information. This provides earnings in time and labor.
  • control unit (5) controls the date data after the user profile (P) is activated and provides displaying of the content assigned to the activated user profile (P) for that date.
  • which content will be used on which date by the user is prerecorded in the user profile (P) for each user.
  • the user does not have to search for what content will be used. Thereby, this enables the user to use the time more efficiently.
  • control unit (5) compares the user identity information detected by the reader (7) with the user identity information included in the user list (L) and operates the displaying means (3) when the user identity information detected by the reader (7) matches with any one of the user identity information included in the user list (L).
  • the displaying means (3) is prevented from operating when the electronic educational device (1) is not in use and this provides energy saving.
  • the electronic educational device (1) control method comprises the steps of
  • the electronic educational device (1) identifies the user easily and quickly and activates the user profile (P) corresponding to the respective user. Consequently, the user can quickly access the content desired to be used. Furthermore, information safety is provided since the users cannot access the contents of each other.

Abstract

The present invention relates to an electronic educational device (1) suitable to be used by multiple users and the control method thereof, comprising a memory (2) wherein contents like documents, pictures, video etc. are stored, a displaying means (3) that provides displaying of the contents and a user recognition unit (4).

Description

AN ELECTRONIC EDUCATIONAL DEVICE COMPRISING A USER RECOGNITION UNIT
The present invention relates to an electronic educational device comprising a user recognition unit and the control method thereof.
The blackboards and the marker boards used in educational institutions, in meetings and seminars have given place to electronic educational devices in the course of time. The state of the art electronic educational devices generally comprise a writing surface that performs the function of the blackboard and/or marker board and a displaying means whereby the electronic content supporting the mentioned subject is shared with the listeners. In situations where the electronic educational device is utilized by multiple users in the same classroom, a large number of contents are recorded in the memory of the electronic educational device by different users to be displayed on the displaying means and it becomes difficult for the user to find the document he/she is searching. Furthermore, unauthorized users can easily access the memory of the electronic educational device besides course and conference hours and therefore information safety is at risk. Besides that, the people not skilled enough to use the electronic educational device may use the electronic educational device, resulting in impairment of the electronic educational device.
In the state of the art Japanese Patent Application No. JP2010052410, an electronic blackboard device is described wherein the writing surface can be utilized only by specified users authorized by a password. The writing surface is activated after the user enters the password.
In the state of the art Japanese Patent Application No. JP1233956, an electronic blackboard device is described that comprises a magnetic card reader. The user swipes the card having magnetic strip through the magnetic card reader when he/she desires to transfer content from the screen memory to the storage memory. The transfer operation can only be made after user verification operation is realized.
In the state of the art Japanese Patent Application No. JP2005088204, an electronic blackboard device is described that comprises a fingerprint sensor. In this embodiment, the confidentiality of information entered on the writing surface is provided by performing a user identification process.
The aim of the present invention is the realization of an electronic educational device wherein confidentiality of information is provided and utilization of which is facilitated.
The electronic educational device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a memory, a displaying means whereon the contents saved in the memory are displayed and a user recognition unit. The people authorized to use the electronic educational device are previously identified by a system administrator and user profiles are created for these people in the memory wherein content and settings belonging to these users are stored. When the user is detected by the user recognition unit, the user profile associated with the respective user is activated. Thus, the user can easily access the content belonging to him/her.
In an embodiment of the present invention, the user recognition unit comprises a database having a user list containing the users with access authorization to the electronic educational device. The identity information of the users is located in the user list. In this embodiment, the user recognition unit furthermore comprises a reader. The reader detects the identity information of the user. The user is recognized by comparing the identity information detected by the reader with the identity information in the user list.
In a version of this embodiment, the users utilize identity cards comprising a radio-frequency identification (RFID) tag in order to identify themselves to the electronic educational device and the reader can read these tags. The user holds up his/her card towards the reader, providing the user recognition process to be performed and afterwards starts to use the electronic educational device. The user recognition process can be made quickly and easily by means of the radio-frequency identification (RFID) system.
In another version of this embodiment, the biometric features of the users are contained in the user list as the identity information. In this embodiment, the reader is a sensor that is suitable for detecting the biometric information of the user. Thus, unauthorized utilization resulting from the card of any user containing identity information being lost or stolen is prevented. Thereby, this provides increase in the security of information.
In an embodiment of the present invention, the electronic educational device comprises a writing surface. The writing surface is a blackboard and/or a marker board. The data written on the writing surface by means of a pen are converted into an image file by being scanned by means of at least one scanner situated preferably on the corners of the writing surface. Thus, the information written on the writing surface is made suitable for being processed and shared.
In a version of this embodiment, the generated image file is saved into the profile of the currently active user and the user can easily access the file via the user profile when the respective file is desired to be reviewed later on. Consequently, not only the information entered into the writing surface is prevented from being lost and also easy access to this information is provided.
In another version of this embodiment, the generated image file is transmitted to listeners having wireless receiver devices present in the environment by means of a wireless transmitter contained in the electronic educational device. In this embodiment, the users having preferably wireless tablet computers can display the data on the writing surface on their tablet computers. Thus, both the frequent problem of not being able to see the writing surface and also the need for rewriting the data on the writing surface are eliminated and time is provided to be used efficiently.
In an embodiment of the present invention, the control unit controls the date information in the system after the user is identified and brings the content the respective user is expected to use at that date on the display screen. Thus, the user that will give education about different subjects on predetermined dates is saved from the trouble of searching for content before every session. In an education program wherein the curriculum is predetermined, the content that will be displayed on the display screen for each date is predetermined and the user can easily access the content relating to the conference/course that will be given on that date upon identifying himself/herself to the electronic educational device.
In an embodiment of the present invention, the user recognition unit detects the user identity information by means of the reader and compares it with the identity information in the user list and actuates the displaying means if the user identity information matches with any of the identity information in the user list. Consequently, the displaying means is prevented from remaining open when the electronic educational device is not in use and this provides energy saving.
By means of the present invention, the electronic educational device is provided to be used only by predetermined users and the authorized users are enabled to easily access their respective contents and settings.
The electronic educational device realized in order to attain the aim of the present invention is illustrated in the attached figure, where:
Figure 1 – is the schematic view of the electronic educational device.
The elements illustrated in the figure are numbered as follows:
  1. Electronic educational device
  2. Memory
  3. Displaying means
  4. User recognition unit
  5. Control unit
  6. Database
  7. Reader
  8. Writing surface
  9. Scanner
  10. Wireless transmitter
The electronic educational device (1) suitable to be used by multiple users comprises
  • a memory (2) wherein contents like documents, pictures, video etc. are stored,
  • a displaying means (3) that provides the contents to be displayed and
  • a user recognition unit (4).
The contents contained in the memory (2) are selected by the user depending on the subject of the lesson or the conference to be given, and transferred to the displaying means (3) and the respective subject is provided to be taught easily. The user recognition unit (4) provides the identification of the person that will use the electronic educational device (1) (Figure 1).
The electronic educational device (1) of the present invention comprises a control unit (5) that provides a user profile (P) to be saved for each user including at least the preferable contents and/or user specific settings of the displaying means (3) on the memory (2) and provides activation of the user profile (P) corresponding to the respective user saved in the memory (2) when the user is identified by the user recognition unit (4). Thus, the user whose user profile (P) is activated can see the content only belonging to him/her, even though the contents belonging to all the users authorized to use the electronic educational device (1) are contained on the same memory (2). Thus, both the content searched by the user can be easily located and also the safety of information is provided. Furthermore, the settings of the displaying means (3) like brightness, contrast, color etc. belonging to the user are automatically adjusted when the user is identified and the necessity for the user to reset the respective parameters at each time of utilization is eliminated. Consequently, the time that is used for adjusting the settings of the displaying means (3) is saved every time the electronic educational device (1) is operated.
In an embodiment of the present invention, the user recognition unit (4) comprises a database (6) wherein a user list (L) including user identity information of the users authorized for access and a reader (7) that provides the detection of the user identity information. In this embodiment, the user recognition unit (4) identifies the user by comparing the user identity information received by means of the reader (7) with the user identity information included in the user list (L). Thus, the electronic educational device (1) is provided to be used in a controlled manner.
In a version of this embodiment, the reader (7) is adapted for detecting the information on the radio-frequency identification (RFID) tag wherein the user identity information is saved. In this embodiment, each user owns a card that includes the radio-frequency identification (RFID) tag whereon his/her identity information is saved. When the user swipes his card through the reader (7), the reader (7) reaches the user identity information by analyzing the radio-frequency identification (RFID) tag and compares it with the user identity information in the database (6). Thus, the user recognition process is performed quickly and securely.
In another version of this embodiment, the reader (7) is adapted for detecting the biometric information of the user. In this embodiment, the reader (7) is preferably a fingerprint detection unit. After being detected, the fingerprint of the user is compared with the fingerprints in the database (6) and the user is identified. Thus, user identification process is performed without requiring the user to carry an additional device. Furthermore, the risk of user identity information being stolen or lost is eliminated and the use of the electronic educational device (1) by unauthorized people is prevented.
In an embodiment of the present invention, the electronic educational device (1) comprises at least one writing surface (8) suitable for writing on by the user with a writing instrument (W) and a scanner (9) that generates a file (F) by scanning the writing surface (8). Thus, storing and/or sharing the information on the writing surface (8) becomes easy by being transferred into the electronic environment.
In a version of this embodiment, the control unit (5) saves the file (F) generated by the scanner (9) in the user profile (P) of the currently active user. Thus, the user can access the information written on the writing surface (8) whenever desired. Thus, loss of information is prevented.
In a version of this embodiment, the electronic educational device (1) comprises a wireless transmitter (10) which is suitable for transmitting the file (F) generated by the scanner (9) to the listeners in the auditorium. Thus, the listeners having an electronic device comprising a wireless receiver, can access the information on the writing surface (8) without needing to rewrite this information. This provides earnings in time and labor.
In an embodiment of the present invention, the control unit (5) controls the date data after the user profile (P) is activated and provides displaying of the content assigned to the activated user profile (P) for that date. In this embodiment, which content will be used on which date by the user is prerecorded in the user profile (P) for each user. Thus, the user does not have to search for what content will be used. Thereby, this enables the user to use the time more efficiently.
In an embodiment of the present invention, the control unit (5) compares the user identity information detected by the reader (7) with the user identity information included in the user list (L) and operates the displaying means (3) when the user identity information detected by the reader (7) matches with any one of the user identity information included in the user list (L). Thus, the displaying means (3) is prevented from operating when the electronic educational device (1) is not in use and this provides energy saving.
In an embodiment of the present invention, the electronic educational device (1) control method comprises the steps of
  • Reading the user identity information by means of the reader (7),
  • Comparing the user identity information with the user identity information included in the user list (L),
  • Ending the process if the user identity information does not match with any one of the user identity information included in the user list (L) and
  • Activating the user profile (P) corresponding to the respective user if the user identity information matches with any one of the user identity information included in the user list (L).
By means of the present invention, the electronic educational device (1) identifies the user easily and quickly and activates the user profile (P) corresponding to the respective user. Consequently, the user can quickly access the content desired to be used. Furthermore, information safety is provided since the users cannot access the contents of each other.
It is to be understood that the present invention is not limited to the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These should be considered within the scope of the protection postulated by the claims of the present invention.

Claims (10)

  1. An electronic educational device (1) suitable to be used by multiple users, comprising,
    - a memory (2) wherein contents like documents, pictures, video etc. are stored,
    - a displaying means (3) that provides displaying of the contents and
    - a user recognition unit (4)
    characterized in that a control unit (5) that provides a user profile (P) for each user including at least the preferable contents and/or user specific settings of the displaying means (3) to be saved on the memory (2) and provides the user profile (P) corresponding to the respective user saved in the memory (2) to be activated when the user is identified by means of the user recognition unit (4).
  2. An electronic educational device (1) as in Claim 1, characterized in that the user recognition unit (4) which comprises a database (6) wherein a user list (L) including the user identity information of the authorized users are saved and a reader (7) that provides detection of the user identity information and which identifies the user by comparing the user identity information received by means of the reader (7) with the user identity information included in the user list (L).
  3. An electronic educational device (1) as in Claim 2, characterized in that the reader (7) that is adapted to detect the data on the radio-frequency identification (RFID) tag wherein the user identity information is saved.
  4. An electronic educational device (1) as in Claim 2, characterized in that the reader (7) that is adapted to detect the biometric information of the user.
  5. An electronic educational device (1) as in any one of the above Claims, characterized in that at least one writing surface (8) suitable for writing on by the user by means of a writing instrument (W) and a scanner (9) that generates a file (F) by scanning the writing surface (8).
  6. An electronic educational device (1) as in Claim 5, characterized in that the control unit (5) that saves the file (F) generated by the scanner (9) in the user profile (P) of the currently active user.
  7. An electronic educational device (1) as in Claim 5 or 6, characterized in that a wireless transmitter (10) which is suitable for providing the file (F) generated by the scanner (9) to be transmitted to the listeners in the auditorium.
  8. An electronic educational device (1) as in any one of the above Claims, characterized in that the control unit (5) that controls the date data after the user profile (P) is activated and provides displaying of the content assigned to the activated user profile (P) for that date.
  9. An electronic educational device (1) as in any one of the Claims 2 to 7, characterized in that the control unit (5) that compares the user identity information detected by the reader (7) with the user identity information included in the user list (L) and operates the displaying means (3) when the user identity information detected by the reader (7) matches with any one of the user identity information included in the user list (L).
  10. A control method for an electronic educational device (1) as in any of the above Claims which comprises the steps of
    - Reading the user identity information by means of the reader (7),
    - Comparing the user identity information with the user identity information included in the user list (L),
    - Ending the process if the user identity information does not match with any one of the user identity information included in the user list (L) and
    - Activating the user profile (P) corresponding to the respective user if the user identity information matches with any one of the user identity information included in the user list (L).
PCT/EP2013/058420 2012-04-24 2013-04-24 An electronic educational device comprising a user recognition unit WO2013160320A1 (en)

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CN109977984B (en) * 2018-11-06 2023-06-20 国网新疆电力有限公司营销服务中心(资金集约中心、计量中心) Power stealing user judging method based on support vector machine

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