JP5774350B2 - Electronic device, handwriting input method, and handwriting input program - Google Patents

Description

  The present invention relates to an electronic device capable of displaying characters and images on a touch panel, a handwriting input method, and a handwriting input program.

  A technique for displaying characters and images via a touch panel is known. There is also known a technique for receiving input of a handwritten image (character) via a touch panel and displaying the handwritten image (character) input on the touch panel on the touch panel.

  For example, Japanese Patent Laid-Open No. 7-73278 (Patent Document 1) discloses an information input device. According to Japanese Patent Application Laid-Open No. 7-73278 (Patent Document 1), an information input device includes an input unit that enables an input by a user's predetermined input operation, and an input operation monitor that monitors a user's movement during the input operation. Means and processing means for processing an input obtained by the input means based on a user input operation and a user movement obtained by the input monitoring means.

  Japanese Unexamined Patent Application Publication No. 2004-199181 (Patent Document 2) discloses a coordinate input device, a display device, a coordinate input method, and a program. According to Japanese Patent Laying-Open No. 2004-199181 (Patent Document 2), when the display screen is touched by a pen mouse or the like possessed by the user, the coordinates of the touched portion are detected. When an operation of touching the pen mouse by the user is performed, not only the tip of the pen mouse touches but also the back of the hand holding the pen mouse may touch. In such a case, the calculation unit obtains a movement amount of each touch portion within a predetermined time, selects a touch portion having a large movement amount, and outputs coordinate data of the selected touch portion.

JP-A-7-73278 JP 2004-199181 A

  When handwritten input is received via the touch panel, not only the touch position between the pen or finger and the touch panel, but also the touch position between the palm and the touch panel is detected. That is, since the touch position is detected at a position unintended by the user, an unintended handwritten image is displayed, or an unintended command is input.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a technique for effectively eliminating a touch operation by a palm.

  According to one aspect of the present invention, when a touch position is detected via the touch panel, a memory for storing a plurality of correspondence relationships between the touch panel, the touch position and the palm rejection area, and at least one of the plurality of correspondence relationships. And a processor for invalidating the touch operation detected in the palm rejection area corresponding to the detected touch position.

  Preferably, the processor stores, in the setting mode, a palm touch area detected when a touch position is detected via the touch panel in a memory as a palm rejection area corresponding to the touch position. When the touch position is detected via the touch panel, the touch operation detected in the palm rejection area corresponding to the touch position is invalidated based on the correspondence relationship.

  Preferably, the touch panel includes a display and a tablet stacked on the display. As a setting mode, the processor executes a calibration process for matching the touch position detected by the tablet with the display position of the image displayed on the display, and the touch position is detected by the tablet during the calibration process. The palm touch area detected at times is stored in the memory as a palm rejection area corresponding to the touch position.

  Preferably, the memory stores in advance a plurality of correspondences between the touch position for the right hand and the palm rejection area, and stores a plurality of correspondences between the touch position for the left hand and the palm rejection area. When the processor receives a selection command for right hand or left hand and detects a touch position via the touch panel, the processor detects the touch position based on at least one of the selected correspondence relations for right hand or left hand. The touch operation detected in the palm rejection area corresponding to the touch position is invalidated.

  Preferably, the processor interpolates the correspondence relationship corresponding to the touch position detected by the touch panel based on the plurality of correspondence relationships.

  When another situation of this invention is followed, the handwriting input method in the electronic device containing the touch panel, the memory for memorize | storing a several correspondence of a touch position and a palm rejection area, and a processor is provided. In the handwriting input method, the processor detects a touch position via the touch panel, and the processor detects in the palm rejection area corresponding to the detected touch position based on at least one of a plurality of correspondence relationships. Disabling the touch operation performed.

  According to another aspect of the present invention, there is provided a handwriting input program for an electronic device including a touch panel, a memory for storing a plurality of correspondence relationships between touch positions and palm rejection areas, and a processor. The handwriting input program includes a step of detecting a touch position on the processor via the touch panel and a touch detected in the palm rejection area corresponding to the detected touch position based on at least one of a plurality of correspondence relationships. And a step of invalidating the operation.

  As described above, according to the present invention, an electronic device, a handwriting input method, and a handwriting input program capable of effectively eliminating a touch operation with a palm are provided.

It is an image figure which shows the operation | movement outline | summary of the electronic device 100 which concerns on this Embodiment. It is a block diagram showing the hardware constitutions of the electronic device 100 which concerns on this Embodiment. It is an image figure which shows the data structure of the palm area database 131 which concerns on this Embodiment. It is a 1st image figure which shows the electronic device 100 at the time of the calibration process which concerns on this Embodiment. It is a 2nd image figure which shows the electronic device 100 at the time of the calibration process which concerns on this Embodiment. It is a flowchart which shows the palm area registration process which concerns on this Embodiment. It is an image figure which shows the structure for the handwriting input in the electronic device 100 which concerns on this Embodiment. It is a flowchart which shows the handwriting input process which concerns on this Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<Overall Configuration of Electronic Device 100>
First, the overall configuration of electronic device 100 according to the present embodiment will be described. The electronic device 100 is realized by a device having a touch panel such as an electronic notebook, a personal computer, a mobile phone, an electronic dictionary, and a PDA (Personal Digital Assistant).

  FIG. 1 is an image diagram showing an outline of operation of electronic device 100 according to the present embodiment. More specifically, FIG. 1A is an image diagram illustrating a state in which a user is inputting handwritten characters on the top of the touch panel 120 with the stylus pen 200 while the palm touches the touch panel 120. FIG. 1B is an image diagram illustrating a state in which a user is inputting handwritten characters at the bottom of the touch panel 120 with the stylus pen 200 while the palm touches the touch panel 120.

  Referring to FIG. 1, electronic device 100 includes a touch panel 120 that can acquire a touch position with a finger or a stylus pen 200. In the present embodiment, touch panel 120 includes a tablet that detects a touch position by a user and a liquid crystal display. The touch panel 120 receives a touch operation on the touch panel 120 and receives various commands from the user based on the touch position or the locus of the touch position. The touch panel 120 displays hand-drawn images (including hand-drawn characters), predetermined characters, predetermined images, and the like based on various commands from the user.

  When an electronic device having a normal touch panel attaches a touch operation of the stylus pen 200 to the touch panel 120, there is a high possibility that the touch of the palm to the touch panel 120 will be detected. On the other hand, electronic device 100 according to the present embodiment has a configuration for effectively removing a palm touch on touch panel 120 while receiving a touch operation of stylus pen 200 on touch panel 120. In other words, electronic device 100 can reduce the possibility of accepting a palm touch on touch panel 120 as a handwritten input by effectively removing the palm touch.

  Referring to FIG. 1A, when a handwritten character is input to the upper part of touch panel 120, generally, distance L between touch position T of stylus pen 200 with respect to touch panel 120 and touch area R of the palm with respect to touch panel 120. Tends to grow. Conversely, referring to FIG. 1B, when handwritten characters are input to the lower part of the touch panel 120, generally, the touch position T of the stylus pen 200 with respect to the touch panel 120, and the palm touch area R with respect to the touch panel 120 The distance L tends to be small.

  That is, the relative positional relationship between the touch position T of the stylus pen 200 with respect to the touch panel 120 and the palm touch area R with respect to the touch panel 120 is the position of the dominant hand holding the stylus pen 200 with respect to the electronic device 100 and the other hand with respect to the electronic device 100. And the position of the user's body with respect to the electronic device 100.

  Electronic device 100 according to the present embodiment has touch position T of stylus pen 200 with respect to touch panel 120 and touch area R of palm with respect to touch panel 120 for each of a plurality of touch positions T of stylus pen 200 at the time of initial setting or user switching. The relative positional relationship U with (the rectangular area S surrounding the touch area R) is stored. Alternatively, the electronic device 100 may previously use a relative position between the touch position T of the stylus pen 200 with respect to the touch panel 120 and the palm touch area R with respect to the touch panel 120 for each of a plurality of touch positions T of the stylus pen 200 for the right hand and the left hand. A typical positional relationship U may be stored.

  The electronic device 100 can predict the palm touch area R with respect to the touch panel 120 based on the touch position T of the stylus pen 200 by referring to the relative positional relationship U at the time of handwriting input. The electronic device 100 removes (ignores) the touch position detected in the palm touch area R (rectangular area S) with respect to the predicted touch panel 120. As a result, it is possible to reduce the possibility that a touch operation unintended by the user is input.

  Hereinafter, a specific configuration of the electronic device 100 for realizing such a function will be described in detail.

<Hardware Configuration of Electronic Device 100>
Next, an aspect of a specific configuration of the electronic device 100 will be described. FIG. 2 is a block diagram showing a hardware configuration of electronic device 100 according to the present embodiment. Referring to FIG. 2, electronic device 100 includes a CPU 110, a touch panel 120, a memory 130, a memory interface 140, and a communication interface 150 as main components.

  The touch panel 120 includes a display 121 and a tablet 122. The touch panel 120 may be of any type such as an electromagnetic induction method, a capacitance method infrared method, and a resistance film method as long as it can detect a plurality of touch positions. The touch panel 120 may include an optical sensor liquid crystal.

  The touch panel 120 detects a touch operation on the touch panel 120 by an external object every predetermined time, and inputs a touch position (touch position) to the CPU 110. Further, the touch panel 120 displays a still image (such as a handwritten image) or a moving image based on a command (signal) from the CPU 110 or data stored in a VRAM (Video RAM) 170.

  The memory 130 is realized by various types of RAM (Random Access Memory), ROM (Read-Only Memory), a hard disk, and the like. The memory 130 stores programs executed by the CPU 110 and various types of data as will be described later. The CPU 110 controls each unit of the electronic device 100 by executing a program stored in the memory 130.

  In particular, the memory 130 according to the present embodiment stores a palm area database 131. FIG. 3 is an image diagram showing a data structure of palm area database 131 according to the present embodiment.

  As shown in FIG. 3, the palm area database 131 stores a relative positional relationship U between the touch position T of the stylus pen 200 and the expected touch area R of the palm for each of a plurality of areas. In the present embodiment, information indicating the expected touch area R of the palm with respect to the touch position T of the stylus pen 200 is stored for each of a plurality of areas.

  For example, the information indicating the relative positional relationship U includes relative coordinates of four vertices of the rectangular area S surrounding the touch area R with respect to the touch position T. Alternatively, the information indicating the relative positional relationship U is the maximum and minimum values of the relative coordinates in the X direction of the rectangular area S surrounding the touch area R with respect to the touch position T, and the maximum and minimum values of the relative coordinates in the Y direction. May be included. Alternatively, the information indicating the relative positional relationship U may be other information indicating the touch area R with respect to the touch position T.

  Moreover, in this Embodiment, the palm area database 131 stores the information which shows a dominant hand, and said relative positional relationship U for every user. Thus, the CPU 110 can acquire the relative positional relationship U suitable for the user by recognizing the user ID and the like.

  Note that the entire area of the touch panel 120 may be covered by a plurality of areas. For example, the entire area of the touch panel 120 may be equally divided into four or nine. Alternatively, the entire area of the touch panel 120 may or may not be covered with a plurality of areas. For example, a plurality of areas or a plurality of touch positions (points) may be distributed on the touch panel 120. In this case, as will be described later, the CPU 110 interpolates the touch area of the palm with respect to the touch positions outside the plurality of areas or outside the plurality of touch positions (points) based on the plurality of areas or the plurality of touch positions (points). be able to.

  The memory interface 140 reads data from the external storage medium 141. In other words, the CPU 110 reads data stored in the external storage medium 141 via the memory interface 140 and stores the data in the memory 130. Conversely, the CPU 110 reads data from the memory 130 and stores the data in the external storage medium 141 via the memory interface 140.

  The storage medium 141 includes a CD-ROM (Compact Disc-Read Only Memory), a DVD-ROM (Digital Versatile Disk-Read Only Memory), a USB (Universal Serial Bus) memory, a memory card, an FD (Flexible Disk), Hard disk, magnetic tape, cassette tape, MO (Magnetic Optical Disc), MD (Mini Disc), IC (Integrated Circuit) card (excluding memory card), optical card, mask ROM, EPROM, EEPROM (Electronically Erasable Programmable Read-Only) A medium for storing the program in a nonvolatile manner such as Memory).

  The communication interface 150 is realized by an antenna or a connector. The communication interface 150 exchanges data with other devices by wired communication or wireless communication. In other words, the CPU 110 receives a program, image data, text data, or the like from another device via the communication interface 150, or transmits image data or text data to another device.

  The clock 160 transmits the current time to the CPU 110. The clock 160 measures an elapsed time after the stylus pen 200 is lifted from the touch panel 120 based on a command from the CPU 110.

  The CPU 110 controls each unit of the electronic device 100 by executing a program stored in the memory 130 or the storage medium 141. That is, the CPU 110 executes the processes shown in FIGS. 6 and 8 by executing a program stored in the memory 130 or the storage medium 141.

  For example, the CPU 110 performs the touch position T of the stylus pen 200 for each of a plurality of areas (a plurality of touch positions T of the stylus pen 200) at the time of initial setting of the electronic device 100, at the time of initial setting for each user, or at the time of user switching. And the relative positional relationship U between the palm touch area R and the palm touch area R are registered in the palm area database 131. Hereinafter, a process in the case of registering the relative positional relationship U in the palm area database 131 during the calibration process in the initial setting of the electronic device 100 will be described.

  FIG. 4 is a first conceptual diagram showing electronic apparatus 100 during the calibration process according to the present embodiment. FIG. 5 is a second conceptual diagram showing electronic apparatus 100 during the calibration process according to the present embodiment.

  Referring to FIG. 4, CPU 110 causes touch panel 120 to display a calibration graphic in a plurality of areas. When the user slides the stylus pen 200 along the figure, the electronic device 100 matches the detection position of the tablet 122 with the display position of the figure on the display 121.

  Specifically, the CPU 110 displays the crosses 121 </ b> A to 121 </ b> E at the center, upper left, lower left, upper right, and lower right of the touch panel 120. The CPU 110 performs calibration processing based on the touch position T in the calibration areas 122A to 122E surrounding the crosses 121A to 121E. At the same time, the CPU 110 detects the touch area R of the palm corresponding to each touch position T in the calibration areas 122A to 122E via the touch panel 120.

  For example, when the touch position T is detected inside any one of the calibration areas 122A to 122E, the CPU 110 calibrates the touch position T as information indicating the relative positional relationship U regarding any one of the areas. The relative coordinates (U1, U2, U3, U4) of the four vertices of the rectangular area S surrounding the touch area R detected outside the areas 122A to 122E are registered in the palm area database 131. Then, every time the touch position is detected in the calibration areas 122A to 122E, the CPU 110 detects the relative positional relationship U of the touch area R detected outside the calibration areas 122A to 122E with respect to the detected touch position T. Based on the above, the maximum value and minimum value in the X direction and Y direction of the palm area database 131 are updated.

  Similarly, as illustrated in FIG. 5, the CPU 110 may cause the touch panel 120 to display calibration characters in a plurality of areas. Then, the CPU 110 may perform a calibration process and register or update a relative position, as in FIG.

  1 to 5, the CPU 110 refers to the touch area T of the stylus pen 200 and the relative positional relationship that are sequentially input by referring to the palm area database 131 during handwriting input. A palm touch area R (rectangular area S) with respect to 120 is predicted. Then, the CPU 110 removes (ignores) the touch position detected in the palm touch area R (rectangular area S) with respect to the predicted touch panel 120.

  Specifically, when a touch position belonging to any of a plurality of areas registered in the palm area database 131 is detected, the CPU 110 detects the touch detected in the predicted touch area R of the palm. Remove (ignore) the position.

  On the other hand, when a touch position that does not belong to any of the plurality of areas registered in the palm area database 131 is detected, the CPU 110 detects that the plurality of areas are registered in the palm area database 131. Based on the relationship with the touch position, by interpolating the palm touch area R corresponding to each of a plurality of areas registered in the palm area database 131, the palm touch area R corresponding to the detected touch position Calculate The CPU 110 removes (ignores) the touch position detected in the touch area R of the interpolated palm.

  In the present embodiment, the CPU 110 registers the relative positional relationship U between the pen touch position T and the palm touch area R in the palm area database 131 during the calibration process in the initial setting of the electronic device 100. .

  However, the CPU 110 may register the relative positional relationship U at the time of initial setting for each user or at the time of user switching. In this case, the CPU 110 determines the user's dominant hand based on the palm touch area R detected outside the calibration areas 122A to 122E during the calibration process related to the central area 122A, whereby the central area 122A and the upper left area 122B are determined. You may acquire two relative positional relationship U regarding (when right-handed) or upper right area 122D (when left-handed). As described above, the CPU 110 determines that the palm touch area R with respect to the touch position T in the area other than the central area 122A and the upper left area 122B (when right-handed) or the upper right area 122D (when left-handed) is Interpolation is performed from the touch area R of the palm with respect to the touch position T of the area 122B (when right-handed) or the upper right area 122D (when left-handed).

  Further, the memory 130 may store in advance the relative positional relationship U between the touch position T and the touch area R for each touch position T of the stylus pen 200 for the right hand and the left hand. In this case, the CPU 110 accepts the input of the user's dominant hand at the time of user switching or at any other timing. CPU110 may calculate the touch area R of the palm corresponding to the touch position T detected at the time of handwriting input based on the relative positional relationship U of the touch position T corresponding to the dominant hand and the touch area R.

<Palm area registration process>
Below, the palm area registration process performed by CPU110 which concerns on this Embodiment is demonstrated. FIG. 6 is a flowchart showing palm area registration processing according to the present embodiment. The memory 130 stores in advance the number N of setting areas (calibration areas) and the number M of figures and characters included in each setting area.

  Referring to FIG. 6, when the CPU 110 shifts to the palm area setting mode (for example, when the calibration process is started), CPU 110 substitutes 1 for a variable n in memory 130 (step S102). CPU110 substitutes 1 to the variable m of the memory 130 (step S104). At this time, as shown in FIGS. 4 and 5, the CPU 110 causes the touch panel 120 to display a graphic or character for the user to trace.

  CPU 110 determines whether a touch position is detected in the nth calibration area via touch panel 120 (step S106). When the touch position is not detected in the nth calibration area (NO in step S106), CPU 110 repeats the process of step S106.

  When the touch position T is detected in the nth calibration area (YES in step S106), the CPU 110 accepts the touch position T for calibration and palm area setting (step S108). The CPU 110 calculates the relative position of the touch area R outside the calibration area with respect to the touch position T within the calibration area (step S110). The CPU 110 registers or updates the maximum and minimum values in the X and Y directions of the relative position of the palm touch area R with respect to the touch position T in the target area of the palm area database 131 (step S112). ).

  CPU 110 determines whether or not a touch position is detected in the calibration area (step S114). When the touch position is detected in the calibration area (YES in step S114), CPU 110 repeats the processing from step S110.

  If the touch position is not detected in the calibration area (NO in step S114), CPU 110 increments variable m. The CPU 110 determines whether or not the variable m has exceeded the number of strokes M (step S118). If the variable m does not exceed the number of strokes M (NO in step S118), the processing from step S106 is repeated.

  When variable m exceeds stroke number M (YES in step S118), CPU 110 increments variable n (step S120). CPU 110 determines whether variable n has exceeded the number N of setting areas (step S122). If variable n does not exceed the number N of set areas (NO in step S122), CPU 110 repeats the processing from step S104. When variable n exceeds the number N of set areas (YES in step S122), CPU 110 ends the palm area registration process.

<Functions for handwriting input>
Below, the structure for the handwriting input in the electronic device 100 which concerns on this Embodiment is demonstrated. FIG. 7 is an image diagram showing a configuration for handwriting input in electronic device 100 according to the present embodiment.

  Referring to FIG. 7, electronic device 100 includes a display 121, a tablet 122, a CPU 110, a palm area database 131 stored in memory 130, and a VRAM 170. CPU110 implement | achieves the reception part 111, the collation part 112, and the removal part 113 by running a program. However, the reception unit 111, the collation unit 112, and the removal unit 113 may be realized by a hardware circuit.

  The reception unit 111 sequentially receives touch positions from the tablet 122. The collation unit 112 determines whether or not the input touch position belongs to the predicted touch area R of the palm.

  The removal unit 113 removes (ignores) the input of the touch position in the palm area. The removing unit 113 updates the handwritten data based on the touch position outside the palm area. More specifically, the removal unit 113 displays a handwritten image created from a touch position outside the palm area on the display 121 via the VRAM 170.

  Next, the handwriting input process performed by CPU110 which concerns on this Embodiment is demonstrated. FIG. 8 is a flowchart showing handwriting input processing according to the present embodiment.

  It is assumed that CPU 110 recognizes the touch position by stylus pen 200 based on the size of the touch area (line thickness) by using touch panel 120 when handwriting input is started. . Alternatively, the CPU 110 may recognize that the touch position located at the top of all the touch positions is due to the stylus pen 200 by using the touch panel 120 when handwriting input is started. Or CPU110 may recognize the touch position (for example, position with the highest writing pressure) by a stylus pen based on the difference in writing pressure by using the touch panel 120 when handwriting input is started. . Thereafter, the CPU 110 executes the following process every time a touch position is received from the touch panel 120. The CPU 110 may recognize the touch position of the stylus pen 200 and the touch position of the palm by combining the following processing and at least one of the above three methods.

  Referring to FIG. 8, CPU 110 determines, for each touch position input from touch panel 120, whether or not it is continuous with the touch position of stylus pen 200 received immediately before (step S202). CPU110 receives as a handwritten image, when the input touch position is a continuation with the touch position of stylus pen 200 received immediately before (when it is YES in step S202) (step S204). That is, CPU 110 causes touch panel 120 to update the handwritten image based on the input touch position.

  When the input touch position is not continuous with the touch position of the stylus pen 200 received immediately before (when NO in step S202), the CPU 110 determines whether it is continuous with the hover position of the stylus pen 200 received immediately before. Is determined (step S206). If the input touch position is continuous with the hover position of stylus pen 200 that was received immediately before (YES in step S206), the processing from step S204 is repeated.

  When the input touch position is not continuous with the hover position of the stylus pen 200 received immediately before (NO in step S206), the input touch position is received immediately before with reference to the palm area database 131. It is determined whether or not the touch position R of the palm is in the relative positional relationship U from the touch position T (or hover position) of the stylus pen 200 (step S208). If the input touch position does not belong to the palm area relative to the touch position or hover position of stylus pen 200 that was received immediately before (NO in step S208), CPU 110 repeats the processing from step S204. .

  If the input touch position belongs to the palm area relative to the touch position or hover position of stylus pen 200 that was received immediately before (YES in step S208), CPU 110 removes the input touch position ( Ignore) (step S210).

<Other application examples>
It goes without saying that the present invention can also be applied to a case where it is achieved by supplying a program to a system or apparatus. Then, an external storage medium 141 (memory 130) storing a program represented by software for achieving the present invention is supplied to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus is externally supplied. The effect of the present invention can also be enjoyed by reading and executing the program code stored in the storage medium 141 (memory 130).

  In this case, the program code itself read from the external storage medium 141 (memory 130) realizes the functions of the above-described embodiment, and the external storage medium 141 (memory 130) storing the program code is This constitutes the present invention.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) running on the computer based on the instruction of the program code However, it is needless to say that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the external storage medium 141 (memory 130) is written to another storage medium provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, This includes the case where the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Needless to say.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 electronic device, 110 CPU, 111 reception unit, 112 collation unit, 113 removal unit, 120 touch panel, 121 display, 121A to 121E cross, 122 tablet, 122A to 122E calibration area, 122A central area, 122B upper left area, 122D upper right Area, 130 memory, 131 palm area database, 140 memory interface, 141 storage medium, 150 communication interface, 160 clock, 170 V-RAM, 200 stylus pen.

Claims (7)

A touch panel;
A memory for storing a plurality of correspondences between the touch position and the palm rejection area;
When the touch position is detected via the touch panel, the touch operation detected in the palm rejection area corresponding to the detected touch position is invalidated based on at least one of the plurality of correspondence relationships. And a processor for
The processor is
In the setting mode, a calibration process is performed to match the touch position detected by the touch panel and the display position of the image displayed by the touch panel,
An electronic apparatus configured to set , as the palm rejection area corresponding to the touch position, a palm touch area detected when the touch position is detected by the touch panel based on a calibration processing result . The processor is
In the setting mode, a palm touch area detected when the touch position is detected via the touch panel is stored in the memory as the palm rejection area corresponding to the touch position;
In the handwriting mode, when the touch position is detected via the touch panel, the touch operation detected in the palm rejection area corresponding to the touch position is invalidated based on the correspondence relationship. 1. The electronic device according to 1. The touch panel
Display,
Including a tablet laminated to the display,
The processor is
As the setting mode, a calibration process for adjusting the touch position detected by the tablet and the display position of the image displayed by the display is performed.
The palm touch area detected when the touch position is detected by the tablet during the calibration process is stored in the memory as the palm rejection area corresponding to the touch position. Electronic equipment. The memory previously stores a plurality of correspondences between the touch position for the right hand and the palm rejection area, and stores a plurality of correspondences between the touch position for the left hand and the palm rejection area,
The processor is
Accepts right hand or left hand selection instructions,
When the touch position is detected via the touch panel, the palm rejection area corresponding to the detected touch position based on at least one of the plurality of correspondence relations for the right hand or the left hand selected. The electronic device according to claim 1, wherein the touch operation detected within the device is invalidated. A touch panel;
A memory for storing a plurality of correspondences between the touch position and the palm rejection area;
When the touch position is detected via the touch panel, the touch operation detected in the palm rejection area corresponding to the detected touch position is invalidated based on at least one of the plurality of correspondence relationships. And a processor for
The processor is an electronic device that interpolates a correspondence relationship corresponding to the touch position detected by the touch panel based on the plurality of correspondence relationships . A handwriting input method in an electronic device including a touch panel, a memory for storing a plurality of correspondences between a touch position and a palm rejection area, and a processor,
The processor detecting the touch position via the touch panel;
The processor invalidating a touch operation detected in the palm rejection area corresponding to the detected touch position based on at least one of the plurality of correspondence relationships;
The processor executing calibration processing for adjusting the touch position detected by the touch panel and the display position of an image displayed by the touch panel in a setting mode;
The processor sets, based on a calibration processing result, a palm touch area detected when the touch position is detected by the touch panel as the palm rejection area corresponding to the touch position ; A handwriting input method. A handwriting input program for an electronic device including a touch panel, a memory for storing a plurality of correspondences between a touch position and a palm rejection area, and a processor,
Detecting the touch position via the touch panel;
Invalidating a touch operation detected in the palm rejection area corresponding to the detected touch position based on at least one of the plurality of correspondence relationships;
Executing a calibration process for matching the touch position detected by the touch panel and the display position of the image displayed by the touch panel in the setting mode;
A step of setting a palm touch area detected when the touch position is detected by the touch panel as a palm rejection area corresponding to the touch position based on a calibration processing result, Input program.

Images