JP2005088204A - Electronic blackboard device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic blackboard device, with a plurality of pages, which prevents information from leaking out caused by the failure to erase it and thereby, is designed to improve its utility. <P>SOLUTION: This electronic blackboard device comprises a screen 1 on which a character/a drawing are entered; an erasure part 3 which erases the contents entered on the screen 1; an operating part 6 which can recognize a user by fingerprint and a control part 5 which controls to check the leakage of information due to the failure to erase it, utilizing the function of user recognition. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic blackboard device. Note that the blackboard in the present invention means a screen for presenting characters, drawings, etc., and is not necessarily black (including a whiteboard).

In relation to the electronic blackboard device, for example, Patent Document 1 discloses a technique for executing erasure by an erasing operation. In the case of this technology, there is no countermeasure against the case of forgetting to erase after using the electronic blackboard.
Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique for erasing image data when the power is turned on or erasing it at the time of printing. In the case of this technique, there is no countermeasure for when the power is forgotten to be turned off, and the printed contents are erased when printed, so that there is a disadvantage that cannot be reviewed.
Patent Document 3 discloses that an erased image can be restored based on image data recorded in a recording unit. In the case of this technique, since there is no user restriction regarding restoration of recorded image data, there is a security problem when using it as a shared facility.
Japanese Patent Laid-Open No. 5-38896 JP-A-8-65429 JP-A-8-65430

For example, an electronic blackboard apparatus installed in a conference room or the like is used by an unspecified number of people. Electronic blackboards often have multiple pages, so you may forget to erase a page that is not currently displayed and see what you have written next. However, since an outsider cannot judge the importance of the information described, there is a possibility that it will be easily disseminated.
SUMMARY OF THE INVENTION An object of the present invention is to prevent leakage of information due to forgetting to erase in an electronic blackboard apparatus having a plurality of pages, and to improve convenience.

In order to achieve the above object, the invention described in claim 1 includes a screen on which characters and drawings are written, an erasing unit for erasing the content written on the screen, an operation unit capable of user recognition by fingerprints, An electronic blackboard apparatus having at least a control unit that performs control for preventing leakage of information due to forgetting to erase using user recognition is the main feature.
According to a second aspect of the present invention, there is provided the electronic blackboard apparatus according to the first aspect, wherein a mode for performing control for preventing leakage of information due to forgetting to erase using user recognition and a mode for not performing the control can be switched. Is the main feature.
According to a third aspect of the present invention, there is provided a reading unit for reading characters / drawings written on a screen, a paper printing unit for printing the content read by the reading unit on printing paper, and the content read by the reading unit as image data. The main feature of the electronic blackboard apparatus according to claim 2 is that the electronic blackboard apparatus according to claim 2 is capable of printing based on image data recorded even on a page that has been deleted by mistake.
According to a fourth aspect of the present invention, the electronic blackboard apparatus according to the third aspect of the present invention is provided with a screen printing unit for restoring on the screen the contents erased from the contents described on the screen.

The electronic blackboard according to any one of claims 1 to 4, wherein image data recorded in the recording unit and fingerprint information stored for user recognition are automatically deleted from the recording unit when the power is turned off. Features the device.
The invention according to claim 6 is the electronic blackboard device according to any one of claims 1 to 4, which automatically erases image data and fingerprint information stored for user recognition from a recording unit after a predetermined time has elapsed. Features.
The invention according to claim 7 is characterized in that the time until image data and fingerprint information stored for user recognition are erased from the recording unit can be arbitrarily set. And
According to the eighth aspect of the present invention, when the free space of the recording unit becomes equal to or less than a predetermined capacity, the data is automatically erased to secure an area for recording image data and fingerprint information necessary for user recognition. The electronic blackboard device according to any one of Items 1 to 7 is a main feature.
According to the ninth aspect of the present invention, it is possible to prohibit deletion of specific information of image data recorded in the recording unit or fingerprint information stored for user recognition. The blackboard device is the main feature.

  According to the present invention, in an electronic blackboard device having a plurality of pages, it is possible to prevent information from being leaked due to forgetting to erase, and to improve its convenience.

  Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an electronic blackboard device corresponding to Embodiment 1 of the present invention.
Reference numeral 1 denotes a screen on which characters, drawings, and the like can be written. When the horizontal width of the electronic blackboard is set to one page length, the screen has a length capable of displaying a plurality of pages from page # 1 to page #n. 2 (2a, 2b) is a reading unit (reading unit A, B) for reading the content written on the screen, 3 (3a, 3b) is an erasing unit (erasing unit A, B) for erasing the content written on the screen. ) 4 is a rotation drive unit for performing page feed on the screen, 5 is a control unit for controlling image processing, user recognition by fingerprint, and operation of each unit of the apparatus, and 6 is a user (user) who controls the apparatus. An operation unit having a print button, a page feed button, a power button, and the like for operation, 7 is a paper printing unit for printing an image read by the reading unit on printing paper, and 8 is a recording unit for storing fingerprint information and the like. is there.
A fingerprint reading function is provided by using a fingerprint recognition pad or the like for a page operation button (page feed / return or arrow button), a print button, a power button or the like of the operation unit 6. Since the reading unit 2 and the paper printing unit 7 are provided in a general electronic blackboard apparatus, they are not particularly necessary in the present embodiment and may be omitted.
FIG. 2 is an external view of the electronic blackboard device corresponding to the first embodiment of the present invention. Here, a type in which the page 1 is moved forward / backward by moving the screen 1 to the left and right has been described. However, if the type moves up and down, the reading unit 2 and the erasing unit 3 are provided up and down (in the present invention, Hereinafter, description will be made assuming that the page feed is a leftward movement in FIG. 2 and the page return is a rightward movement). When the screen 1 is on a loop, one of the reading unit A or the reading unit B can be omitted.

According to the electronic blackboard apparatus of FIG. 1, each page and its right holder (owner) can be uniquely associated. When a user who does not have the right of the corresponding page displays the page, the erasing apparatus 3 The description can be erased. With this function, it is possible to prevent information leakage due to forgetting to erase, and to improve security.
For example, it is assumed that the user A finishes describing page # 1 of the screen 1 and presses the “page feed (or arrow) button” on the operation unit 6. Since the “page feed button” is a fingerprint reading unit, the fingerprint of user A is read when the button is pressed, and the information and information that the page feed button is pressed are sent to the control unit 5. The control unit 5 records the fingerprint information of the user A on the recording unit 8 and at the same time adds information that the fingerprint belongs to the page # 1.
Further, the control unit 5 compares the fingerprint information of the owner of the page # 2 displayed next with the fingerprint information of the user A. If the owner of the page # 2 is other than the user A, the control unit 5 sends the page A to the user A. Is determined to have no right to display the page, and the page drive operation for displaying the page # 2 is instructed to the rotation driving unit 4, and at the same time, the erase command for the page # 2 is transmitted to the erasing unit B. If the owner of page # 2 is user A, no erase command is issued. If the owner's fingerprint information is not in the recording unit, it is always erased and displayed.
Next, it is assumed that the user B presses the “page return button” on the operation unit 6. The “page return button” is also a fingerprint reading unit, and the operation unit 6 reads the fingerprint of the user B and sends the information and information that the page return button has been pressed to the control unit 5.
Since the page displayed by the page return operation is page # 1, the control unit 5 extracts the fingerprint information of the owner of page # 1 from the recording unit 8 and compares it with the fingerprint of the user B that has been sent. Since the owner of the page # 1 is the user A, the control unit 5 determines that the user B does not have the right to display the page # 1, and the page returning operation for displaying the page # 1 on the rotation driving unit 4 At the same time, an instruction is sent to the erasing unit A to erase page # 1. Since the above control is performed, even if the user A forgets to turn off the page # 1, the user B cannot see the page # 1.

If the user A has pressed the page return button, it is recognized as the owner of page # 1, and therefore the control unit 5 performs the page return operation without erasing the contents described in page # 1. Is called. At this time, however, the association between the owner of page # 1 and the fingerprint of user A is canceled by performing the page return operation. For this reason, the user who presses the page feed button next becomes the new owner of page # 1.
When the button pressed by the user B is not the “page return” but the “page forward” button, the user B is associated as the owner of the page # 2 and the page # 3 is displayed. At this time, the fingerprint information of the user A and the user B is recorded as owner information of the pages # 1 and # 2 in the recording unit in the control unit 5, respectively. Further, it is determined whether or not the owner of page # 3 is user B, and it is determined whether page # 3 is erased and page-turned or page-turned without being erased.
In the case of the electronic blackboard device in which the screen # 1 is displayed when the page 1 is displayed while the screen 1 is in a loop and the page #n is displayed, first press the “page feed button”. The fingerprint of the user X is recorded in the recording unit of the control unit 5 as owner information of page #n. If the owner is not the user X, the page # 1 may be controlled so that the contents described by the erasing unit 3 are erased and then page-turned. May be.
In this way, when a certain user X performs some page operation on the screen 1, the user X is recognized as the owner of the page that is not displayed by the operation, and conversely the page displayed by the operation. On the other hand, the above-mentioned purpose can be achieved by changing the control method depending on whether or not the user X is the owner.

  In the second embodiment, whether or not to use the function described in the first embodiment can be freely controlled by the control unit 5. The setting of whether to use is input from the operation unit 6. As a result, an operation equivalent to that of a normal electronic blackboard device can be performed, and the loss of information and a decrease in convenience due to an erroneous operation can be avoided.

In the third embodiment, by actively using the recording unit, it is possible to prevent the loss of information without reducing the security level.
FIG. 3 is a block diagram of an electronic blackboard device corresponding to the third embodiment of the present invention, and FIG. 4 is an external view of the electronic blackboard device corresponding to the third embodiment of the present invention. In the first embodiment, the reading unit 2 and the paper printing unit 7 are non-essential functional units, but in the third embodiment, they are essential functions.
In the electronic blackboard apparatus shown in FIG. 3, when the page turning operation is performed, the contents described on the corresponding page are always read by the reading unit 2a (reading unit A) and temporarily recorded in the recording unit 8 as image data. Even if the page is deleted by mistake, the image data of the corresponding page stored in the recording unit 8 may be printed by the paper printing unit 7. For this purpose, the recording unit 8 needs to have a sufficient capacity to handle a plurality of pages on the screen 1 as image data.
Further, if the paper printing operation button of the operation unit 6 is also set as the fingerprint reading unit and only the owner of the corresponding page can perform the paper printing operation, it is possible to prevent the security level from being lowered. In addition, it is preferable that only the owner can operate the data stored in the recording unit 8.

FIG. 5 is a block diagram of an electronic blackboard device corresponding to Embodiment 4 of the present invention, and FIG. 6 is an external view of the electronic blackboard device corresponding to Embodiment 4 of the present invention. In the electronic blackboard device of the fourth embodiment, screen printing units 9 (9a, 9b: screen printing units A, B) for printing image data on the screen 1 are added to the configuration of the electronic blackboard device shown in FIGS. Is. Either one of the screen printing units 9 may be omitted.
In the third embodiment, the image data stored in the recording unit 8 is sent to the paper printing unit 7 and printed on the printing paper with respect to the description content of the erased page. In the fourth embodiment, the recording unit 8 The image data stored in is printed on the screen 1 by the screen printing unit 9a or 9b (hereinafter referred to as restoration). For this reason, even if a page has been erased, it can be restored and appended, and the convenience of the electronic blackboard device is not impaired.
If the restoration operation button of the operation unit 6 is also set as a fingerprint reading unit and only the owner of the page to be restored can perform the restoration operation, it is possible to prevent the security level from being lowered.
As an applied usage, when the last page #n is page-turned on an electronic blackboard device in which the screen 1 is in a loop, the page # 1 is automatically deleted and the page is automatically sent, and the user's trouble of erasure work Can be omitted. Even if the user does not want to erase page # 1, the contents described in page # 1 can be restored at any time by the restoration function, so this is not a serious problem.
Conversely, page turning is often because the user wants to use a new page, which can be said to improve convenience. This also means that even if the number of physical pages is small, if the storage capacity of the recording unit (8) is sufficiently large, a large number of pages can be virtually obtained.

  In the fifth embodiment, the controller 5 performs control so that the recorded information is erased (initialized) at the same time as the power is turned off after use. Alternatively, if a volatile memory is used for the recording unit 8, the same function can be realized without requiring control by the control unit 5. As a result, it is possible to provide an always usable state at the start of use (power on). Further, it is not necessary for the user to erase the data in the recording unit before / after use, and convenience is improved.

  In the sixth embodiment, control is performed so that data is not erased if the owner erases the data or if a certain time has not elapsed. As a result, since erasing data is sequentially erased, it is possible to reduce the time and effort of the user consciously erasing data stored in the recording unit 8. The start time may be a time when data is recorded or a time when the power is first turned off after the data is recorded.

  In the seventh embodiment, the user inputs the time from the operation unit 6 to the deletion, and the control unit (5) performs the deletion according to the setting. For example, it is assumed that there is a meeting held every week and the electronic blackboard apparatus described in this embodiment is used. If the time until data is erased is set to one week, the content of the last week's meeting can be restored and used at the next meeting. In this way, it can be used in accordance with the user's environment, so convenience is improved.

  In the eighth embodiment, the control unit 5 automatically erases data according to a certain determination condition, so that the user can use the data without worrying about the free space in the recording unit 8. As the criteria for determining the data to be deleted, the recorded date and the most recently used date are used in the order of oldest.

In the ninth embodiment, specific data is prohibited from being erased, and even image data of a page describing important contents is erased because the recorded date and time is old, data other than the meeting Is also stored for one week, so that the problem of using up the capacity of the recording unit 8 immediately can be avoided.
In the present invention, in an electronic blackboard apparatus having a plurality of pages, each page (screen) is associated with the right holder (owner), so that the information written there can be viewed without permission (operation) of the owner. It is a mechanism that can not be. Thereby, after using the electronic blackboard device, it is not necessary to be conscious of erasing characters / drawings written on the screen.
In addition, since a mode in which control by user recognition is not performed can be selected, it can be used in the same manner as a general electronic blackboard.
Also, every time a page operation is performed, the image data of that page is temporarily recorded on the recording device, so pages that have been erased due to an erroneous operation, or pages that have been erased by the eraser, are also printed on the printing paper. By printing, it is possible to avoid the disappearance of information written on the screen. In addition, since only the owner of the target page can be set to be printable, it is safe from the viewpoint of security.

In addition, the contents described on the page are recorded as image data, and because it has a screen printing function, pages that have been erased due to erroneous operation or have been erased by the erasing device are displayed. It can be restored completely. Further, since it can be set that only the owner of the page to be restored can be restored, it is also safe in terms of security.
Further, when the power is turned on, the data in the recording unit is erased, so that it is possible to prevent the recording capacity from being insufficient when trying to use. Further, it is not necessary to erase data before / after use, and convenience is improved.
In addition, since the data in the recording unit is automatically deleted after a certain period of time, the user does not need to consciously delete the data in the recording unit, and convenience is improved.
In addition, since the user can specify the time until the data in the recording unit is erased, it can be used in accordance with the user's environment, and the convenience is further improved.
In addition, when the capacity of the recording unit is reduced, data with low importance is automatically deleted and a necessary storage area is secured, so that there is no shortage of recording area. For this reason, the user is not required to worry about the free space in the recording unit or to erase unnecessary data, which is convenient.
In addition, since the erasure prohibition attribute can be added to the data recorded in the recording part, if important data is designated as erasure prohibition, it will not be erased even if it meets the conditions of the data to be erased. The data will not be lost.

1 is a block diagram of an electronic blackboard device corresponding to Embodiment 1 of the present invention. 1 is an external view of an electronic blackboard device corresponding to Embodiment 1 of the present invention. The block diagram of the electronic blackboard apparatus corresponding to Example 3 of this invention. The external view of the electronic blackboard apparatus corresponding to Example 3 of this invention. The block diagram of the electronic blackboard apparatus corresponding to Example 4 of this invention. The external view of the electronic blackboard apparatus corresponding to Example 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screen 2 Reading part 3 Erasing part 4 Rotation drive part 5 Control part 6 Operation part 7 Paper printing part 8 Recording part

Claims (9)

  To prevent leakage of information due to forgetting to erase using user recognition, a screen on which characters and drawings are described, an erasing unit for erasing the contents described on the screen, an operation unit capable of user recognition by fingerprint An electronic blackboard device comprising at least a control unit for controlling the above.   2. The electronic blackboard apparatus according to claim 1, wherein a mode for performing control for preventing leakage of information due to forgetting to erase by using user recognition and a mode for not performing the control can be switched.   A reading unit that reads characters and drawings written on a screen, a paper printing unit that prints the content read by the reading unit on printing paper, and a recording unit that records the content read by the reading unit as image data 3. The electronic blackboard apparatus according to claim 2, wherein printing is possible on the basis of image data recorded even on a page that has been erased by mistake.   4. The electronic blackboard device according to claim 3, further comprising a screen printing unit for restoring the contents erased from the contents written on the screen to the screen.   5. The electronic blackboard device according to claim 1, wherein image data recorded in the recording unit and fingerprint information stored for user recognition are automatically deleted from the recording unit when the power is turned off.   5. The electronic blackboard apparatus according to claim 1, wherein image data and fingerprint information stored for user recognition are automatically deleted from a recording unit after a predetermined time has elapsed.   7. The electronic blackboard apparatus according to claim 6, wherein the time until image data and fingerprint information stored for user recognition are erased from the recording unit can be arbitrarily set.   2. An area for recording image data and fingerprint information necessary for user recognition when a free space in a recording section becomes a predetermined capacity or less is automatically deleted. 7 is an electronic blackboard device.   8. The electronic blackboard apparatus according to claim 3, wherein specific information can be prohibited from being erased from image data recorded in the recording unit and fingerprint information stored for user recognition.

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