JP7342485B2 - Control device, method, program, and information processing system - Google Patents

Description

The present invention relates to a control device, method, program, and information processing system.

Conventionally, touch panels have been used in interactive whiteboards (also referred to as electronic whiteboards) and the like. With an interactive whiteboard, you can enlarge and display materials by touching the touch panel with your finger, and easily write on the materials with a pen.

Regarding the display orientation of a display device having a touch panel function, Patent Document 1 states that information inputted by an inputter using a pen into a tablet/display section is displayed on the tablet/display section in the direction of the inputter. is described (paragraph [0020] of Patent Document 1).

However, a display device having a touch panel function is not only installed horizontally as in Patent Document 1, but may also be installed vertically, for example. If the screen is placed vertically rather than horizontally, there is no need to change the display orientation according to the direction of the person inputting information.

Therefore, an object of an embodiment of the present invention is to provide a display method depending on the installation status of a display device.

In order to achieve the above object, one embodiment of the present invention includes an installation determination unit that determines whether the display device is placed horizontally, and a scriber that detects the position of a scribe when the display device is placed horizontally. a position detection unit; and a rotation unit that rotates a screen on the display device according to the position of the scribe, and the rotation unit is configured to determine that the display device is placed flat by the installation determination unit. If not, the screen on the display device is not rotated according to the position of the scribe.

According to one embodiment of the present invention, it is possible to provide a display method depending on the installation status of a display device.

1 is a configuration diagram of an information processing system according to an embodiment of the present invention. FIG. 1 is a hardware configuration diagram of an electronic whiteboard according to an embodiment of the present invention. FIG. 1 is a hardware configuration diagram of a video conference terminal according to an embodiment of the present invention. 1 is a hardware configuration diagram of a smartphone according to an embodiment of the present invention. FIG. 1 is a functional block diagram of an information processing system according to an embodiment of the present invention. FIG. 3 is a diagram for explaining timing for enabling rotation control according to an embodiment of the present invention. FIG. 3 is a diagram for explaining detection of the position of a scribe according to an embodiment of the present invention. FIG. 3 is a diagram for explaining an overview of rotation control according to an embodiment of the present invention. FIG. 3 is a diagram for explaining margin control according to an embodiment of the present invention. FIG. 3 is a diagram for explaining margin control according to an embodiment of the present invention. It is a flowchart of rotation control processing according to an installation situation concerning one embodiment of the present invention.

Each embodiment will be described below with reference to the accompanying drawings. Note that, in this specification and the drawings, components having substantially the same functional configuration are designated by the same reference numerals, thereby omitting redundant explanation.

<System configuration>
FIG. 1 is a configuration diagram of an information processing system 10 according to an embodiment of the present invention. As shown in FIG. 1, the information processing system 10 includes a control device 11 and a display device 12. Note that the control device 11 and the display device 12 may be implemented in separate casings as shown in FIG. 1, or may be implemented in one casing. Each will be explained below.

The control device 11 changes the display method of the display device 1 according to the installation status of the display device 12. Specifically, the control device 11 determines whether the display device 12 is placed horizontally or vertically. When the display device 12 is placed horizontally, the control device 11 rotates the screen according to the position of the scribe. On the other hand, when the display device 12 is vertically mounted, the control device 11 does not rotate the screen (that is, fixes the screen regardless of the position of the scribe).

The display device 12 is a display having a touch panel function. The display device 12 includes at least one of an acceleration sensor that detects the acceleration of the display device 12 and a camera that can take pictures using a lens attached to the screen side of the display device 12. At least one of the acceleration detected by the acceleration sensor and the image captured by the camera is used by the control device 11 to determine whether the display device 12 is placed horizontally or vertically.

Note that the devices described in the Examples are merely one of a plurality of computing environments for implementing the embodiments disclosed herein. In some embodiments, the controller includes multiple computing devices, such as a server cluster. The plurality of computing devices are configured to communicate with each other via any type of communication link, including a network, shared memory, etc., to perform the processes disclosed herein.

The information processing system 10 includes, for example, a PJ (Projector), an IWB (Interactive White Board: a whiteboard with an electronic blackboard function that allows mutual communication), an output device such as a digital signage, and a HUD (Head Up Display). ) equipment, industrial machinery, imaging devices, sound collection devices, medical equipment, network appliances, connected cars, personal computers, mobile phones, smartphones, tablets, game consoles, personal digital assistants (PDAs), It may be a digital camera, a wearable PC, a desktop PC, or the like.

<Hardware configuration>
＜＜Electronic blackboard＞＞
FIG. 2 is a hardware configuration diagram of an electronic whiteboard that is an example of the information processing system 10. As shown in FIG. 2, the electronic whiteboard 2 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an SSD (Solid State Drive) 204, a network I/ F205 and an external device connection I/F (Interface) 206.

Among these, the CPU 201 controls the entire operation of the electronic whiteboard 2 . The ROM 202 stores programs used for the operation of the CPU 201, such as the CPU 201 and an IPL (Initial Program Loader). RAM 203 is used as a work area for CPU 201. The SSD 204 stores various data such as electronic whiteboard programs. Network I/F 205 controls communication with communication network 100. External device connection I/F 206 is an interface for connecting various external devices. The external devices in this case are, for example, a USB (Universal Serial Bus) memory 230 and external devices (microphone 240, speaker 250, camera 260).

The electronic whiteboard 2 also includes a capture device 211, a GPU 212, a display controller 213, a contact sensor 214, a sensor controller 215, an electronic pen controller 216, a short-range communication circuit 219, an antenna 219a of the short-range communication circuit 219, a power switch 222, and Selection switches 223 are provided.

Among these, the capture device 211 displays video information corresponding to the display content of the display of an external PC (Personal Computer) 270 on the display screen as a still image or a moving image. A GPU (Graphics Processing Unit) 212 is a semiconductor chip that specializes in graphics. The display controller 213 controls and manages screen display in order to output the output image from the GPU 212 to the display 280 or the like. The contact sensor 214 detects when the electronic pen 290, the user's hand H, or the like comes into contact with the display 280. Sensor controller 215 controls processing of contact sensor 214. The contact sensor 214 performs coordinate input and coordinate detection using an infrared cutoff method. This method of inputting and detecting coordinates is such that two light receiving and emitting devices installed at both ends of the upper side of the display 280 emit a plurality of infrared rays in parallel to the display 280. This is a method of receiving light that is reflected by a reflecting member and returns along the same optical path as the light emitted by the light receiving element. The contact sensor 214 outputs the ID of the infrared rays emitted by the two light receiving and emitting devices blocked by the object to the sensor controller 215, and the sensor controller 215 identifies the coordinate position that is the contact position of the object. The electronic pen controller 216 communicates with the electronic pen 290 to determine whether the display 280 has been touched with the tip of the pen or the end of the pen. The near field communication circuit 219 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The power switch 222 is a switch for switching the power of the electronic whiteboard 2 ON/OFF. The selection switches 223 are, for example, a group of switches for adjusting the brightness, shade, etc. of the display on the display 280.

Further, the electronic whiteboard 2 includes a bus line 210. The bus line 210 is an address bus, a data bus, etc. for electrically connecting each component such as the CPU 201 shown in FIG. 2.

Note that the contact sensor 214 is not limited to the infrared cutoff type, but can also be a capacitive type touch panel that identifies the touch position by detecting changes in capacitance, or a touch sensor that identifies the touch position by voltage changes between two opposing resistive films. Various detection means may be used, such as a resistive touch panel that uses a resistive film, or an electromagnetic induction touch panel that detects electromagnetic induction caused by a contact object coming into contact with the display section to specify the contact position. Furthermore, the electronic pen controller 216 may determine whether or not a portion of the electronic pen 290 that the user grasps or other portions of the electronic pen is touched, in addition to the pen tip and pen tail of the electronic pen 290.

<<Video conference terminal>>
FIG. 3 is a hardware configuration diagram of the video conference terminal. As shown in FIG. 3, the video conference terminal 3 includes a CPU 301, ROM 302, RAM 303, flash memory 304, SSD 305, media I/F 307, operation button 308, power switch 309, bus line 310, network I/F 311, Camera 312, image sensor I/F 313, microphone 314, speaker 315, sound input/output I/F 316, display I/F 317, external device connection I/F (Interface) 318, short-range communication circuit 319, short-range communication circuit 319. It is equipped with an antenna 319a. Among these, the CPU 301 controls the entire operation of the video conference terminal 3. The ROM 302 stores programs used for the operation of the CPU 301 such as IPL. RAM 303 is used as a work area for CPU 301. The flash memory 304 stores various data such as communication programs, image data, and sound data. The SSD 305 controls reading and writing of various data to the flash memory 304 under the control of the CPU 301. Note that an HDD may be used instead of the SSD. The media I/F 307 controls reading or writing (storage) of data to a recording medium 306 such as a flash memory. The operation button 308 is a button that is operated when selecting the destination of the video conference terminal 3, for example. The power switch 309 is a switch for switching the power of the video conference terminal 3 ON/OFF.

Further, the network I/F 311 is an interface for data communication using a communication network such as the Internet. A CMOS (Complementary Metal Oxide Semiconductor) sensor 312 is a type of built-in imaging means that images a subject and obtains image data under the control of the CPU 301. Note that instead of a CMOS sensor, an imaging means such as a CCD (Charge Coupled Device) sensor may be used. The image sensor I/F 313 is a circuit that controls the operation of the CMOS sensor 312. Microphone 314 is a built-in circuit that converts sound into electrical signals. The speaker 315 is a built-in circuit that converts electrical signals into physical vibrations to produce sounds such as music and voice. The sound input/output I/F 316 is a circuit that processes input/output of sound signals between the microphone 314 and the speaker 315 under the control of the CPU 301 . The display I/F 317 is a circuit that transmits image data to an external display under the control of the CPU 301. External device connection I/F 318 is an interface for connecting various external devices. The near field communication circuit 319 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark).

Further, the bus line 310 is an address bus, a data bus, etc. for electrically connecting each component such as the CPU 301 shown in FIG. 3.

A display is a type of display means configured with a liquid crystal, an organic EL (Electro Luminescence), or the like that displays an image of a subject, operation icons, and the like. Further, the display is connected to display I/F 317 by a cable. This cable may be a cable for analog RGB (VGA) signals, a cable for component video, HDMI (High-Definition Multimedia Interface) (registered trademark) or DVI (Digital Video Interactive). ) It may also be a signal cable.

Note that the CMOS (Complementary Metal Oxide Semiconductor) sensor 312 is a type of built-in imaging means that images a subject and obtains image data under the control of the CPU 301. Note that instead of a CMOS sensor, an imaging means such as a CCD (Charge Coupled Device) sensor may be used. External devices such as an external camera, an external microphone, and an external speaker can be connected to the external device connection I/F 318 using a USB cable or the like. When an external camera is connected, the external camera operates under the control of the CPU 301 with priority over the built-in CMOS sensor 312. Similarly, when an external microphone or external speaker is connected, the external microphone or speaker is given priority over the built-in microphone 314 and built-in speaker 315, respectively, under the control of the CPU 301. External speakers work.

Furthermore, the recording medium 306 is configured to be detachable from the video conference terminal 3. Further, as long as it is a nonvolatile memory that reads or writes data under the control of the CPU 301, it is not limited to the flash memory 304, and an EEPROM or the like may be used.

＜＜Smartphone＞＞
FIG. 4 is a hardware configuration diagram of a smartphone, which is an example of the information processing system 10. As shown in FIG. 4, the smartphone 4 includes a CPU 401, a ROM 402, a RAM 403, an EEPROM 404, a CMOS sensor 405, an image sensor I/F 406, an acceleration/direction sensor 407, a media I/F 409, and a GPS receiving section 411. There is.

Among these, the CPU 401 controls the operation of the smartphone 4 as a whole. The ROM 402 stores programs used for the operation of the CPU 401 such as the CPU 401 and IPL. RAM 403 is used as a work area for CPU 401. The EEPROM 404 reads or writes various data such as smartphone programs under the control of the CPU 401. A CMOS (Complementary Metal Oxide Semiconductor) sensor 405 is a type of built-in imaging means that images a subject (mainly a self-portrait) and obtains image data under the control of the CPU 401. Note that instead of a CMOS sensor, an imaging means such as a CCD (Charge Coupled Device) sensor may be used. The image sensor I/F 406 is a circuit that controls the operation of the CMOS sensor 405. The acceleration/direction sensor 407 is a variety of sensors such as an electronic magnetic compass, a gyro compass, and an acceleration sensor that detect geomagnetism. A media I/F 409 controls reading or writing (storage) of data to a recording medium 408 such as a flash memory. GPS receiving section 411 receives GPS signals from GPS satellites.

The smartphone 4 also includes a long-distance communication circuit 412, a CMOS sensor 413, an image sensor I/F 414, a microphone 415, a speaker 416, a sound input/output I/F 417, a display 418, an external device connection I/F (Interface) 419, and a nearby It includes a distance communication circuit 420, an antenna 420a of a short distance communication circuit 420, and a touch panel 421.

Among these, the long-distance communication circuit 412 is a circuit that communicates with other devices via the communication network 100. The CMOS sensor 413 is a type of built-in imaging means that images a subject and obtains image data under the control of the CPU 401. The image sensor I/F 414 is a circuit that controls the operation of the CMOS sensor 413. Microphone 415 is a built-in circuit that converts sound into electrical signals. The speaker 416 is a built-in circuit that converts electrical signals into physical vibrations to produce sounds such as music and voice. The sound input/output I/F 417 is a circuit that processes input/output of sound signals between the microphone 415 and the speaker 416 under the control of the CPU 401 . The display 418 is a type of display means such as a liquid crystal or organic EL (Electro Luminescence) that displays images of the subject, various icons, and the like. The external device connection I/F 419 is an interface for connecting various external devices. The near field communication circuit 420 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The touch panel 421 is a type of input means by which the user operates the smartphone 4 by pressing the display 418.

The smartphone 4 also includes a bus line 410. The bus line 410 is an address bus, a data bus, etc. for electrically connecting each component such as the CPU 401 shown in FIG. 4.

<Functional block>
FIG. 5 is a functional block diagram of the information processing system 10 according to an embodiment of the present invention. As shown in FIG. 5, the information processing system 10 can include a main controller section 110, a display section 120, a touch sensor section 130, a battery section 140, an acceleration sensor section 151, and a camera section 152. Each will be explained below.

The display device 12 of the information processing system 10 can have the functions of a display section 120, a touch sensor section 130, a battery section 140, an acceleration sensor section 151, and a camera section 152.

The control device 11 of the information processing system 10 has the function of a main controller section 110. Furthermore, the control device 11 of the information processing system 10 functions as a main controller section 110 by executing a program.

The display unit 120 displays video signals of still images or moving images output from a computer or the like.

The touch sensor unit 130 receives positional information (coordinate information) on the screen of the touch panel that is being touched by an input means (pen tip, scribe's finger, etc.) and the touch panel that is being touched by the scribe's palm. Detect position information (coordinate information) on the screen.

Note that the touch sensor of the display device 12 can distinguish between input means (pen tip, scribe's finger, etc.) and the scribe's palm, and can distinguish between input means (pen tip, scribe's finger, etc.) and the touch panel. The type of sensor does not matter as long as it can detect the positional information (coordinate information) of the contact point and can detect the positional information (coordinate information) of the contact point between the scribe's palm and the touch panel.

Specifically, touch panel controller 131 controls the touch panel. The touch panel driver 132 also supplies power to the touch panel to operate it. Furthermore, the touch sensor 133 detects a touch on the touch panel by an input means (such as a pen tip or a scribe's finger) and a touch on the touch panel by a scribe's palm.

The battery unit 140 supplies power to the touch panel. A battery 141 provides power, and a battery controller 142 controls the battery unit 140.

The acceleration sensor unit 151 detects acceleration of the display device 12 in three directions of the XYZ axes.

The camera unit 152 takes pictures with a lens attached to the screen side of the display device 12.

The main controller unit 110 changes the display method of the display device 12 according to the installation status of the display device 12. The main controller section 110 may include an installation determination section 111 , a scribe position detection section 112 , a rotation section 113 , and a margin control section 114 .

The installation determining unit 111 determines whether the display device 12 is placed horizontally or vertically. Hereinafter, the determination based on the acceleration detected by the acceleration sensor and the determination based on the image captured by the camera will be explained separately.

<Discrimination based on acceleration>
The installation determination unit 111 detects the tilt angle of the display device 12. The installation determination unit 111 measures the orientation with respect to the ground from the sum of the acceleration vectors of the X, Y, and Z axes acquired from the acceleration sensor unit 151 of the display device 12. The installation determining unit 111 determines that the display device is placed horizontally when the tilt angle is 0° (horizontal) or within a predetermined range. Further, the installation determining unit 111 determines that the display device is vertically mounted when the tilt angle is 90° (vertical) or within a predetermined range. Note that the installation determination unit 111 only needs to be able to detect at least two states, 0° (horizontal) and 90° (vertical).

<Discrimination based on camera image>
It is assumed that the feature amount corresponding to the image of the ceiling where the display device 12 can be installed is stored in the database in advance. The installation determination unit 111 calculates the feature amount from the image obtained from the camera unit 152 of the display device 12, compares it with the feature amount in the database, and if the degree of similarity between the two is higher than the threshold value, it is placed horizontally, and if the similarity is lower than the threshold value, it is placed horizontally. It can be determined that it is vertically mounted. That is, when the display device 12 is installed horizontally, the feature amount of the image taken by the lens attached to the screen side of the display device 12 (that is, the image taken in the ceiling direction) and the feature amount in the database Therefore, the installation determining unit 111 can determine the installation status of the display device 12.

Here, the timing for enabling rotation control of the display device 12 will be explained.

FIG. 6 is a diagram for explaining the timing for enabling rotation control according to an embodiment of the present invention. As shown in FIG. 6, the display device 12 can be used horizontally (left side in FIG. 6) or vertically (right side in FIG. 6). When the display device 12 is installed horizontally, it is desirable to rotate the screen (that is, the content) displayed on the display device 12 in accordance with the position of the scribe. However, when the display device 12 is installed vertically, the screen (content) can be viewed from the front from any scribe's position, so it is necessary to rotate the screen (content) displayed on the display device 12. There isn't. In addition, if the screen (content) rotation control function is enabled, there is a concern that power consumption will increase or the CPU processing speed will decrease, so the rotation control function should be disabled when the screen is installed vertically. .

The scribe position detection unit 112 detects the position of a scribe who is writing on the touch panel of the display device 12. Detection of the scribe's position will be described below with reference to FIG.

FIG. 7 is a diagram for explaining detection of a scribe's position according to an embodiment of the present invention. As described above, the touch sensor unit 130 of the display device 12 can distinguish between an input means (such as a pen tip or a scribe's finger) and a scribe's palm. Further, the touch sensor unit 130 can detect positional information (coordinate information) of a contact point between an input means (pen tip, scribe's finger, etc.) and the touch panel. Furthermore, the touch sensor unit 130 can detect positional information (coordinate information) of a point of contact between the scribe's palm and the touch panel.

The scribe position detection unit 112 determines from which direction of the display device 12 (display) the scribe is writing based on the positional relationship between the input means (pen tip, scribe's finger, etc.) and the scribe's palm. Detect.

An example on the left side of FIG. 7 will be explained. Let the coordinates of the palm position be (X ₁ , Y ₁ ) and the coordinates of the input means position be (X ₂ , Y ₂ ). When the display is oriented horizontally and writing is done from the bottom/top (that is, the longitudinal direction), |X ₁ -X ₂ | is estimated to be a relatively small value compared to |Y ₁ -Y ₂ |. Assuming that the reference value is D1, the formula |X ₁ -X ₂ |<D1 holds true. Furthermore, when Y ₂ - _{Y 1} becomes positive, it can be inferred that writing is being performed from the bottom of the display. If the reference value is set to D2 (for example, zero), the formula Y ₂ −Y ₁ >D2 holds true. Note that if Y ₂ −Y ₁ <D2, it can be inferred that writing is performed from the top of the display.

Similarly, the example on the right side of FIG. 7 will be explained. Let the coordinates of the palm position be (X ₃ , Y ₃ ) and the coordinates of the input means position be (X ₄ , Y ₄ ). If the display is oriented horizontally and you are writing from the right or left side (that is, from the lateral direction), |Y ₃ -Y ₄ | is estimated to be a relatively small value compared to |X ₃ -X ₄ |. Assuming that the reference value is D1, the formula |Y ₃ −Y ₄ |<D1 holds true. Also, when X ₃ - X ₄ is positive, it can be inferred that writing is being done from the right side of the display. If the reference value is set to D2 (for example, zero), the formula X ₃ -X ₄ >D2 holds true. Note that if X ₃ -X ₄ <D2, it can be inferred that writing is performed from the left side of the display.

Note that taking right-handedness and left-handedness into consideration, absolute values are used such as |X ₁ -X ₂ | and |Y ₃ -Y ₄ |.

The rotation unit 113 rotates the screen according to the position of the scribe. Specifically, the rotating unit 113 rotates the screen so that the scribe can view the screen (content) displayed on the display device 12 from the front. Hereinafter, rotation control will be explained with reference to FIG. 8.

FIG. 8 is a diagram for explaining an overview of rotation control according to an embodiment of the present invention. As shown in FIG. 8, it is assumed that a display device 12 (display) installed horizontally is being used by users surrounding it from four directions. As shown on the left side of FIG. 8, when the user in the foreground writes on the display, the screen (content) is displayed so that the user in the foreground can see it from the front. After that, as shown on the right side of Figure 8, when the user in the back writes on the display, the screen (content) is displayed so that the user in the back can see it from the front (that is, the screen is rotated according to the position of the scribe). ).

The margin control unit 114 controls margins according to content. Specifically, the margin control unit 114 determines whether the aspect ratio of the display matches the aspect ratio of the image displayed on the display. The margin control unit 114 controls the margin when the aspect ratios of the two do not match. Hereinafter, margin control will be described with reference to FIGS. 9 and 10.

FIG. 9 is a diagram for explaining margin control (in the case of vertically long content) according to an embodiment of the present invention. As shown in FIG. 9, in the case of vertically long content, margins appear on the right and left sides of the content (left side in FIG. 9). The margin control unit 114 sets the other margin (the right margin in the example of FIG. 9) on the side of the margin (the left margin in the example of FIG. 9) that is touched by the input means (pen tip, scribe's finger, etc.). (right side in Figure 9). Therefore, the scribe can write in wide margins.

FIG. 10 is a diagram for explaining margin control (in the case of horizontally long content) according to an embodiment of the present invention. As shown in FIG. 10, in the case of horizontally long content, margins appear at the top and bottom of the content (on the left side of FIG. 10). The margin control unit 114 controls the margin (the lower margin in the example of FIG. 10) that is touched by the input means (pen tip, scribe's finger, etc.) to the other margin (the upper margin in the example of FIG. 10). (center of Figure 10). Therefore, the scribe can write in wide margins. Note that the margin control unit 114 may move the margin at the bottom of the content to the top of the content (on the right side of FIG. 10).

In addition, in the case of both vertically long content and horizontally long content, margin control is not performed when writing is performed in the content portion.

FIG. 11 is a flowchart of rotation control processing according to the installation situation according to an embodiment of the present invention.

Assume that the display device 12 is activated in step 1 (S1).

In step 2 (S2), the installation determining unit 111 determines whether the display device 12 is placed horizontally or vertically. If it is placed horizontally, the process proceeds to step 3, and if it is placed vertically, S2 is executed again.

In step 3 (S3), the scribe position detection unit 112 detects whether the scribe is using the display device 12 (display) based on the positional relationship between the input means (pen tip, scribe's finger, etc.) and the scribe's palm. Detect the direction from which you are writing.

In step 4 (S4), the rotation unit 113 rotates the screen (content) according to the position of the scribe detected in S3.

In step 5 (S5), the margin control unit 114 determines whether the aspect ratio of the display matches the aspect ratio of the image displayed on the display. If they do not match, proceed to step 6, and if they match, execute S5 again.

In step 6 (S6), the margin control unit 114 determines whether or not there is writing in the margin. If it is written in the margin, the process advances to step 7, and if it is not written in the margin, S6 is executed again.

In step 7 (S7), the margin control unit 114 moves the displayed image to increase the margin area.

In step 8 (S8), the margin control unit 114 determines whether the display device 12 has been terminated. If the process has been completed, the process ends; if the process has not been completed, the process returns to S2.

As described above, in one embodiment of the present invention, it is possible to determine whether the display device 12 is placed horizontally or vertically, and to perform a direction change process of display information based on input information according to the determination result. can. By performing control according to the installation status of electronic whiteboards, etc. and display content, and by not placing an extra processing load on the CPU, it is possible to reduce power consumption without slowing down the processing speed of actually necessary control. can.

Each function of the embodiments described above can be realized by one or more processing circuits. Here, the term "processing circuit" as used herein refers to a processor programmed to execute each function by software, such as a processor implemented by an electronic circuit, or a processor designed to execute each function explained above. This includes devices such as ASICs (Application Specific Integrated Circuits), DSPs (digital signal processors), FPGAs (field programmable gate arrays), and conventional circuit modules.

Note that the present invention is not limited to the configurations shown here, such as combinations of other elements with the configurations listed in the above embodiments. These points can be modified without departing from the spirit of the present invention, and can be appropriately determined depending on the application thereof.

10 Information processing system 11 Control device 12 Display device 110 Main controller section 111 Installation determination section 112 Scribe position detection section 113 Rotating section 114 Margin control section 120 Display section 130 Touch sensor section 131 Touch panel controller 132 Touch panel driver 133 Touch sensor 140 Battery section 141 Battery 142 Battery controller 151 Acceleration sensor section 152 Camera section

Japanese Patent Application Publication No. 2011-113128

Claims (7)

an installation determination unit that determines whether the display device is placed horizontally;
a scribe position detection unit that detects the position of a scribe when the display device is placed horizontally;
a rotating unit that rotates a screen on the display device according to the position of the scribe ;
a margin control unit that moves a margin on the display device according to the position of the scribe when the aspect ratio of the display device and the aspect ratio of the screen on the display device do not match;
Equipped with
The control device is configured such that the rotation unit does not rotate a screen on the display device according to the position of the scribe when the installation determination unit does not determine that the display device is placed horizontally. The installation determination unit determines whether the display device is placed horizontally or vertically,
The rotating unit does not rotate the screen on the display device according to the position of the scribe when the installation determining unit determines that the display device is vertically mounted. Control device. The scribe position detection unit detects from which direction of the display device the scribe is writing based on the positional relationship between the input means and the palm of the scribe. Control device as described. 3. The installation determining unit determines whether the display device is placed horizontally based on an acceleration detected by an acceleration sensor of the display device or an image taken by a camera of the display device. The control device according to any one of . a step of determining whether the display device is placed flat;
detecting the position of the scribe when the display device is placed flat;
The screen on the display device is rotated according to the position of the scribe, and if it is not determined that the display device is placed flat, the screen on the display device is rotated according to the position of the scribe. with a step that does not rotate ,
If the aspect ratio of the display device and the aspect ratio of the screen on the display device do not match, moving a margin on the display device according to the position of the scribe;
method including. An installation determination unit that determines whether the control device is placed flat or not;
a scribe position detection unit that detects the position of a scribe when the display device is placed horizontally;
a rotating unit that rotates a screen on the display device according to the position of the scribe ;
a margin control unit that moves a margin on the display device according to the position of the scribe when the aspect ratio of the display device and the aspect ratio of the screen on the display device do not match;
function as
The rotating unit does not rotate the screen on the display device according to the position of the scribe if the installation determining unit does not determine that the display device is placed horizontally. including a control device and a display device;
an installation determination unit that determines whether the display device is placed horizontally;
a scribe position detection unit that detects the position of a scribe when the display device is placed horizontally;
a rotating unit that rotates a screen on the display device according to the position of the scribe ;
a margin control unit that moves a margin on the display device according to the position of the scribe when the aspect ratio of the display device and the aspect ratio of the screen on the display device do not match;
Equipped with
The rotation unit is configured to not rotate a screen on the display device according to the position of the scribe when the installation determination unit does not determine that the display device is placed horizontally.

Images