JP2012173833A - Electronic writing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable learning with the use of general documents, without separately using any content.SOLUTION: The electronic writing device includes: an electronic pen portion 11 which transmits pen-down signals; a scanner 52 which optically reads the letters of a general document 30 and generates optical data; a coil 54 in an electronic marker portion 12 which transmits marker-down signals for detecting the location of the optical data; and a flash memory 70 that stores the optical data and its average reading position in association with each other. The control procedure of the electronic writing device includes: calculating the average reading positions of stroke data and the optical data on the basis of the results of reception of the pen-down signals and the marker-down signals; generating the stroke data that can be written into the general document 30 by the electronic pen portion 11 on the basis of the results of reception of the pen-down signals; comparing the average reading position of the stroke data and that of the optical data and determining the optical data which corresponds to the stroke data; and determining whether the letters of the optical data and those of the stroke data have the same content or not.

Description

  The present invention relates to an electronic writing apparatus capable of electronically inputting user writing contents.

  2. Description of the Related Art In recent years, an electronic writing device that can electronically input handwritten content of an operator is known. In this electronic writing apparatus, an operator writes a desired handwritten character string or the like on a writing surface of a writing object using an electronic writing instrument such as a so-called electronic pen. At the same time, a magnetic field is transmitted from the electronic writing instrument, and the magnetic field is received by a coil disposed on the back surface of the writing object. Thereby, writing data is generated by the temporal change of the position information corresponding to the writing operation on the writing surface, and stored as an electronic file.

  For example, Patent Document 1 proposes to use such an electronic writing apparatus as a learning device. In this prior art, it is possible to learn the writing of characters by letting a learner write characters such as kanji presented from the device, and recognize the writing order and the font and perform correct / incorrect determination.

Japanese Patent Laid-Open No. 9-222846

  On the other hand, a memorization learning method is generally used in which a student hides some words in a sentence of a general book that is used as a teaching material and the learner answers the hidden words from the context before and after. . However, the above-described prior art is only for the purpose of learning the writing of characters prepared and stored in advance in the apparatus itself, and cannot be applied to the above-mentioned memorization learning method. In other words, when learning about many characters other than those stored in the device, it is necessary to purchase the corresponding extended content separately and install it on the device, so that the learner can create a problem for the character arbitrarily selected by the learner. There is no general versatility. In addition, it cannot be used for filling-in problems such as extracting some words in a sentence and letting the learner answer them.

  An object of the present invention is to provide an electronic writing apparatus capable of learning using a general book or the like without separately using content.

  In order to achieve the above object, the first invention has a writing signal generating means having a magnetic field transmitting coil, and the writing signal for inputting data corresponding to the writing contents to the writing object is written in the writing signal. An electronic writing instrument that is generated and transmitted by the signal generation means, a reading means that optically reads characters previously written on the writing object and generates corresponding optical data, and the optical data generated by the reading means is output. And a data output means that is provided in the reading means and includes a magnetic field transmitting coil, and a reading position signal for detecting the position of the character of the writing object read by the reading means is generated by the magnetic field transmitting coil. A reading position signal generating unit; the writing signal transmitted from the writing signal generating unit of the electronic writing instrument; and the reading position signal generating unit of the reading unit. A plurality of coils that can receive the reading position signal transmitted from the writing signal and output an output value respectively induced by the writing signal and the reading position signal, and a reception result in the plurality of coils including the output value. Based on the writing reference position information indicating the position written by the electronic writing instrument, the calculation means for calculating the reading reference position information indicating the position where the reading means read the character, and the optical output from the data output means Data reading means for inputting data, and the reading reference position information of the reading means calculated by the calculating means corresponding to the optical data input from the data input means is stored in association with the optical data. Based on the reception results in the plurality of coils including the output value and the storage means for the electronic writing instrument. Stroke data generating means for generating stroke data corresponding to the description on the font corresponding to the writing reference position information of the electronic writing instrument calculated by the calculating means, and the stroke generated by the stroke data generating means Determining means for comparing the writing reference position information corresponding to the data with the reading reference position information corresponding to the optical data stored in the storage means and determining the optical data corresponding to the stroke data; Determining means for determining whether or not the character obtained by recognizing the optical data determined by the determining means and the character obtained by recognizing the stroke data have the same content; It is characterized by having.

  The first invention of the present application mainly has a configuration for inputting two types of data. The first data is optical data obtained by optically reading a character written in advance on a writing object attached to the electronic writing apparatus. The second data is stroke data obtained by electromagnetically reading the actual writing operation by the user on the writing object attached to the electronic writing apparatus. Each piece of data is input at an arbitrary position on the writing body, and the input position information is also read together with the corresponding data.

  Specifically, the reading unit optically reads characters on the writing object to generate optical data, and the data output unit and the data input unit transmit and receive the optical data. At the same time, the reading position signal from the reading position signal generating means provided in the reading means is received by a plurality of coils, and the calculation means uses the reading means by the user based on the reception result of the reading position signal. Reading reference position information indicating a position where the optical data is read is calculated. The storage unit stores the optical data and the reading reference position information in association with each other.

  In addition, when a writing signal from the electronic writing instrument is received by a plurality of coils, based on the reception result of the writing signal, the calculation means calculates writing reference position information indicating a position where the user has written using the electronic writing instrument. To do. Further, the stroke data generation means generates stroke data corresponding to the written content based on the reception result of the written signal by the plurality of coils.

  The determining means determines the optical data corresponding to each stroke data by comparing the reading reference position information and the writing reference position information. The determining means determines whether or not the characters obtained by recognizing the optical data and the stroke data associated with each other by the determining means have the same contents.

  As described above, in the first invention of the present application, a predetermined character previously described at a predetermined position on a writing object attached to the electronic writing apparatus is first read as optical data by the reading means and then used. It can be determined whether the character written by the electronic writing instrument at the same position is the same. As a result, it is possible to create a highly versatile problem using a general book and learn its memorization.

  According to a second aspect of the present invention, in the first aspect of the present invention, the reading means includes a reading / distance detecting unit capable of detecting a proximity state (down) and a separation state of the reading unit with respect to the writing object. When the proximity state is detected by the means, reading of the character and generation of the optical data are started, and when the separation state is detected by the reading distance proximity means, the data output means generates the optical data generated by the reading means. It is characterized by outputting data.

  In the second invention of the present application, the range of the coordinate position detected by the reading distance detection means that the reading means is close to the writing body can be used in association with each other as the reading position information of the optical data. In addition, it is possible not only to immediately determine whether the memorized answer is correct by transmitting in units of strokes, but also to reduce the peak current consumption by distributing the CPU load.

  According to a third aspect, in the second aspect, when the optical data input from the data input unit is acquired, the position information of the reading unit calculated by the calculation unit immediately before the optical data is acquired. It has a storage control means for controlling the storage means so as to be stored in association with the optical data as position information corresponding to the data.

  In the third invention of the present application, the storage means can store the optical data and the reading position information in association with each other accurately.

  In a fourth aspect based on the third aspect, the storage control means associates the optical data with position information of the corresponding reading means and page number information of the writing object corresponding to the position information. The storage means is controlled so as to store.

  In the fourth invention of this application, even when the writing body has a plurality of spread pages, the storage control means can store the optical data and the reading position information in the storage means in association with each page accurately.

  5th invention has the writing distance detection means which can detect the proximity | contact state and separation | spacing state with respect to the said to-be-written body of the said electronic writing instrument in any one of the said 1st thru | or 4th invention, The said electronic writing instrument is the said writing instrument When the proximity state is detected by the perspective detection means, the writing signal is generated and transmitted by the writing signal generation means in the first mode, and the separation state is continuously detected for a predetermined time or more by the writing distance detection means. Then, the writing signal is generated and transmitted by the writing signal generating means in the second mode, and the determining means determines the optical data when the writing signal of the second mode is received from the plurality of coils. The determination unit is configured to determine the optical data determined before switching when the optical data determined by the determination unit is switched to optical data different from the previous optical data. The character obtained by optical character recognition processing from the data and the character obtained by character recognition processing by the stroke data generated before switching are determined to have the same content. It is characterized by that.

  In the fifth invention of this application, when the electronic writing instrument is continuously separated from the writing object for a predetermined time or more, it is considered that the writing input corresponding to one optical data is completed, and the determining means is newly established. The correct optical data. The determination means can determine the optical data and the stroke data in association with each other accurately.

  In a sixth aspect based on the fifth aspect, the reading means includes reading distance detection means capable of detecting a proximity state and a separation state of the reading means with respect to the writing object, and the reading distance detection means includes the reading distance detection means. When the proximity state is detected, the reading position signal is generated and transmitted by the reading position signal generation means in the third aspect, and when the separation state is detected by the reading distance detection means, the reading position signal is transmitted in the fourth aspect. The reading position signal generation unit generates and transmits the reading position signal.

  In the sixth invention of the present application, it is possible to determine which of the electronic writing instrument and the reading means is close to or away from the writing object by determining the mode of the signal received by the plurality of coils.

  A seventh invention is characterized in that in any one of the first to sixth inventions, there is provided an informing means for informing a judgment result of the judging means.

  In the seventh invention of the present application, by providing the notifying means for notifying the determination result of the determining means, it is determined whether or not the character written on the writing body is the same as the character written by the user. It is possible to clearly notify whether or not the answer by is correct.

  According to the present invention, learning using a general book or the like can be performed without using content separately.

It is a figure which shows schematic structure of the handwriting learning apparatus of one embodiment of this invention. It is a conceptual top view and a conceptual side view showing the state at the time of use of the handwriting learning apparatus provided with the apparatus main body cover. It is a conceptual top view showing the internal structure of an electronic marker pen. It is a functional block diagram showing the functional structure of a handwriting learning apparatus. It is a notional top view showing the internal configuration of a coil sheet. It is the figure which expanded and showed the state which is performing marking operation by making an electronic marker part contact on the writing surface of a general book. It is a figure explaining the time of marking operation by an electronic marker part, the time of the masking of the character by a mask sheet, and the time of the handwriting input of the answer by an electronic pen part. FIG. 3 is a diagram conceptually showing a storage mode of optical data and various information related thereto in a flash memory. It is a figure explaining handling of each input information inputted in a device body cover. It is a flowchart showing the control procedure performed by CPU of the control part of an electronic marker pen at the time of marking operation. It is a flowchart showing the control procedure performed by CPU of an apparatus main body cover at the time of marking operation. It is a flowchart showing the control procedure performed by CPU of the control part of an electronic marker pen at the time of writing input of an answer. It is a flowchart showing the control procedure performed by CPU of an apparatus main body cover at the time of the writing input of an answer. It is a flowchart showing the detailed control procedure of the incorrect answer process of step SS400 in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a handwriting learning device 1 that is an electronic writing device in the present embodiment includes an electronic marker pen 2 and a device body cover 3. The electronic marker pen 2 includes an electronic pen unit 11 for writing on one end of a substantially rod-shaped main body, and an electronic marker unit 12 for applying fluorescent ink to the other end. The apparatus main body cover 3 is generally composed of a book cover that is mounted so as to cover the outside of the general book 30. The general book 30, which is a cursive script, is a book such as a reference book that is used as a learning material by a learner. In this example, the book is bound in a format that opens in the left-right direction, and a character string is written horizontally on each page. ing. A learner who uses the handwriting learning device 1 separately prepares a mask sheet 4 described later with reference to FIG.

  As shown in FIG. 2, the handwriting learning device 1 includes the electronic marker pen 2 and the device main body cover 3 described above. In the handwriting learning device 1, a learner has an electronic marker pen 2. As described above, the electronic marker pen 2 integrally includes the electronic pen unit 11 and the electronic marker unit 12. The electronic pen unit 11 which is an electronic writing instrument is for inputting data corresponding to the writing contents on the general book 30, and functions as an input unit for position information, that is, coordinate data, in addition to the function as a writing instrument. . In addition to the function of inputting coordinate data similar to that of the electronic pen unit 11, the electronic marker unit 12 has the function of a writing instrument that applies fluorescent ink to characters described in the general book 30, The character is optically read and functions as an input unit for optical data which is image data.

  2A and 2B, the apparatus main body cover 3 has a shape that can be spread in a predetermined direction (left and right direction in FIG. 2A) so as to substantially cover the general book 30. The sheet body 10 made of a configured plastic member is provided. The sheet body 10 includes a left sheet portion 10L provided with a left coil sheet 100L, a right sheet portion 10R provided with a right coil sheet 100R, and a bent portion 10T positioned at a central portion in the left-right direction. The bent portion 10T is a portion that can be bent by the learner.

  As shown in FIGS. 2A and 2B, a circuit board 25a is provided at the left end portion of the left seat portion 10L. A circuit board 25b is also provided at the right end of the right sheet portion 10R. The control circuit unit 20 and the battery 21 are accommodated in the circuit board 25a at the left end, and an antenna described later is accommodated in the circuit board 25b at the right end.

  And the general book 30 of the shape which can be spread in the said predetermined direction is mounted | worn so that it may overlap with the sheet | seat body 10. FIG. In addition, you may provide the book holding | maintenance part 11 as shown in the said FIG. 1 in the left sheet | seat part 10L and the right sheet | seat part 10R, respectively. Thereby, the apparatus main body cover 3 can be integrated with the general book 30 easily and reliably, and the handleability by a learner can be improved.

  The learner uses the electronic marker part 12 of the electronic marker pen 2 to write the fluorescent ink by hand on any part of the character string previously written on the left writing surface 31L or the right writing surface 31R of the general book 30. Mark to apply. By moving the electronic marker unit 12 corresponding to the marking operation, electronic position information corresponding to the marked linear range, that is, marking area information described later is stored in the apparatus main body cover 3. At the same time, the electronic marker unit 12 optically reads a character string located in the same linear range, and the optical data generated thereby is stored in association with the position information. When marking is performed on a plurality of pages of the general book 30, the learner also operates the page switching key (see FIG. 4 described later) of the apparatus main body cover 3 every time the page is actually changed to switch the page number. The optical data and position information can be stored in association with each page while performing (page advance or page return).

  In addition, the learner writes a desired handwritten character string on the left writing surface 31L and the right writing surface 31R of the general book 30 using the electronic pen unit 11 of the electronic marker pen 2. By the movement of the electronic pen unit 11 corresponding to the writing operation, electronic input information corresponding to the written content, that is, a pen position coordinate data string described later is stored in the apparatus main body cover 3. At that time, the learner uses the page switching key (see FIG. 4 described later) in the same way as writing is performed while actually switching the page to the left writing surface 31L or the right writing surface 31R of the general book 30 using ink. The pen position coordinate data string can be saved while operating and switching the page number (page advance or page return).

  When the learner uses the handwriting learning device 1, a power switch (not shown) provided in the electronic marker pen 2 is turned on. As shown in FIGS. 3 and 4, the electronic marker pen 2 includes an electronic pen unit 11, an electronic marker unit 12, a control board 40 on which a control unit 46 that controls the entire electronic marker pen 2, and the like, and a battery 43. (See FIG. 3). The electronic pen unit 11 includes a pen tip 2a provided at the tip, a permanent magnet 47 (see FIG. 3), a coil 44 that is a magnetic field transmitting coil, and a capacitor 45 (see FIG. 4), and a writing signal generating means. And an LC oscillation circuit 41 (see FIG. 4) and a tip switch 42. The electronic marker unit 12 includes a marker 51 provided at the tip, a scanner 52 which is a reading means provided at the tip, a permanent magnet 53 (see FIG. 3), a coil 54 and a capacitor 55 which are magnetic field transmitting coils. An LC oscillation circuit 56 (see FIG. 4) that is a reading position signal generating unit, a tip switch 57, a wireless communication control unit 58 that is a data output unit, and an antenna 59 are provided. Note that each signal generating means including the magnetic field transmitting coil is not limited to the oscillation circuit such as the LC oscillation circuits 41 and 56, but may be a resonance circuit.

  The tip switch 42 of the electronic pen unit 11 is a switch that operates according to the contact state of the pen tip 2a with the writing surfaces 31L and 31R. The tip switch 42 is turned on when the learner presses the pen tip 2a against the writing surfaces 31L and 31R (pens down) in order to write characters or the like. On the other hand, when the learner stops writing characters or the like and moves the pen tip 2a away from the writing surfaces 31L and 31R (pens up), the learner enters an off state. Note that the tip switch 42 of the electronic pen unit 11 corresponds to the writing distance detection means described in each claim.

  The front end switch 57 of the electronic marker unit 12 is a switch that operates according to the contact state of the marker 51 and the writing surfaces 31L and 31R of the scanner 52 with each other. The tip switch 57 is turned on when the learner presses the marker 51 and the scanner 52 against the writing surfaces 31L and 31R (marker down; proximity state) in order to perform the above marking operation. On the other hand, when the learner stops marking and separates the marker 51 and the scanner 52 from the writing surfaces 31L and 31R (marker up; separated state), the learner is turned off. The tip switch 57 of the electronic marker unit 12 corresponds to the reading / distance detecting means described in each claim.

  The control unit 46 includes a CPU, ROM, RAM, and the like (not shown), and is configured as a single integrated circuit. The control unit 46 generates alternating magnetic fields (described later) generated from the corresponding coils 44 and 54 corresponding to the on and off states of the tip switches 42 and 57 of the electronic pen unit 11 and the electronic marker unit 12, respectively. Switch the frequency. Further, optical data is generated from the image information read by the scanner 52, and is transmitted to the apparatus main body cover 3 via the wireless communication control unit 58.

  Each LC oscillation circuit 41 is a circuit for generating and outputting an alternating magnetic field (hereinafter simply referred to as “magnetic field” as appropriate) which is a writing signal for position detection. The coils 44 and 54 of each LC oscillation circuit 41 are disposed so as to be wound around the permanent magnets 47 and 53 and are electrically connected to the capacitor 45, so that the magnetic field generated by the LC oscillation circuit 41 is generated. Is generated. The frequency of the magnetic field generated by each LC oscillation circuit 41 from the respective coils 44 and 54 is determined based on the control by the control unit 46 according to the on state or the off state of the two tip switches 42 and 57. It is changed by changing

  That is, when the tip switch 42 of the electronic pen unit 11 is on, the control unit 46 controls the LC oscillation circuit 41 so as to generate a magnetic field having a specific frequency f1 from the corresponding coil 44. On the other hand, when the tip switch 42 of the electronic pen unit 11 is in the OFF state, the control unit 46 controls the LC oscillation circuit 41 so as to generate a magnetic field having a specific frequency f2 from the corresponding coil 44.

  Further, when the tip switch 57 of the electronic marker unit 12 is in the ON state, the control unit 46 controls the LC oscillation circuit 41 so as to generate a magnetic field having a specific frequency f3 from the corresponding coil 54. On the other hand, when the tip switch 57 of the electronic marker unit 12 is in the OFF state, the control unit 46 controls the LC oscillation circuit 41 so as to generate a magnetic field having a specific frequency f4 from the corresponding coil 54. The four types of frequencies f1 to f4 are set to frequencies that can be clearly distinguished from each other. Magnetic fields generated from the coils 44 and 54 are detected by the apparatus main body cover 3.

  In addition, the magnetic field of the frequency f1 and the frequency f2 output from the coil 44 of the electronic pen part 11 is equivalent to the writing signal of each claim, and the frequency f3 and the frequency f4 output from the coil 54 of the electronic marker part 12 are described. The magnetic field corresponds to the reading position signal described in each claim. The frequency f1 corresponds to the first aspect described in each claim, the frequency f2 corresponds to the second aspect, the frequency f3 corresponds to the third aspect, and the frequency f4 corresponds to the fourth aspect.

  In this example, the scanner 52 of the electronic marker unit 12 irradiates the contact surface with light through a glass body brought into contact with the writing surfaces 31L and 31R of the general book 30, detects the reflected light, and detects the writing surface. It is an optical component that reads characters printed on 31L and 31R. The control unit 46 converts the optical data read by the scanner 52 into image data of a compression format such as JPEG in this example. In the following description, this image data is also treated as optical data in a broad sense for the purpose of comparison with stroke data described later.

  The wireless communication control unit 58 performs control to transmit the optical data generated by the control unit 46 to the apparatus body cover 3 by wireless communication via the antenna 59. In this example, wireless communication conforming to the Bluetooth standard is performed.

  The battery 43 supplies power to the control unit 46, the LC oscillation circuits 41 and 56, the scanner 52, the wireless communication control unit 58, and the like when the power switch of the electronic marker pen 2 is turned on (see FIG. 3).

  On the other hand, as shown in FIG. 4, the apparatus body cover 3 includes coil sheets 100 </ b> L and 100 </ b> R, a control circuit unit 20, and an antenna 81. The coil sheets 100L and 100R and the control circuit unit 20 are connected via signal lines.

  The coil sheets 100L and 100R include a sense coil unit 110 as shown in FIG. That is, the sense coil portions 110 arranged as shown in FIG. 5 are resin-molded into, for example, a thin plate having a rectangular outer shape to constitute the coil sheets 100L and 100R.

  As shown in FIG. 5, the sense coil unit 110 includes m loop-shaped sense coils X1 to Xm arranged in the x-axis direction and n loop-shaped sense coils Y1 to Ym arranged in the y-axis direction. Yn. Each of the m sense coils X1 to Xm and the n sense coils Y1 to Yn constituting the sense coil unit 110 can receive the magnetic fields generated by the two coils 44 and 54 of the electronic marker pen 2, respectively. It is a coil and is corresponded to the several coil as described in each claim. The sense coils X1 to Xm and the sense coils Y1 to Yn are arranged in a positional relationship orthogonal to each other. In addition, the coil surfaces of the sense coils X1 to Xm and Y1 to Yn are substantially parallel to the directions of the writing surfaces 31L and 31R of the general book 30. Further, the sense coils X1 to Xm and Y1 to Yn are formed of, for example, copper wires having an insulating coating layer formed on the surface. Still further, the sense coils X1 to Xm, Y1 to Yn are connected to a multiplexer 62 (to be described later) by a lead line not shown and described. Then, the scanning process of the sense coil unit 110 is started, and the sense coils X1 to Xm and Y1 to Yn receive the magnetic fields generated by the coils 44 and 54 of the electronic marker pen 2, in other words, the sense coils X1 to X1. Electromotive force is generated in the sense coils X1 to Xm and Y1 to Yn due to electromagnetic induction between Xm and Y1 to Yn and the magnetic fields generated by the coils 44 and 54. That is, the sense coils X1 to Xm, Y1 to Yn generate a signal S1 (see FIG. 4) by magnetic coupling with the coils 44 and 54.

  Each of the sense coils X1 to Xm is formed in a substantially rectangular shape including a side having a width P1 in the x-axis direction and a side having a length P2 in the y-axis direction longer than P1. Each of the sense coils X1 to Xm is arranged continuously in the x-axis direction at a predetermined constant pitch. For example, the adjacent sense coils X1 to Xm are overlapped with each other at a half pitch of P1.

  Each of the sense coils Y1 to Yn is formed in a substantially rectangular shape having a side having a width P3 in the x-axis direction and a side having a length P1 in the y-axis direction shorter than P3. Each of the sense coils Y1 to Yn is continuously arranged in the y-axis direction at a predetermined constant pitch. For example, the adjacent sense coils Y1 to Yn are overlapped at a pitch of 1/2 of P1.

  In FIG. 5, for the sake of visual clarity, for convenience, the sides of the sense coils X1 to Xm and the sense coils Y1 to Yn are not overlapped, and are illustrated in a state where they are arranged at the above pitch. Not. In FIG. 5, the shape of the sense coils X <b> 1 to Xm, Y <b> 1 to Yn is illustrated by omitting a lead line entering the multiplexer 62 described later.

  Returning to FIG. 4, the control circuit unit 20 includes a microcomputer 80, a multiplexer 62 (hereinafter referred to as “MUX 62” as appropriate), an amplifier circuit 64, a rectifier circuit 66, a limiter 68, and wireless communication as data input means. A control unit 69, a flash memory 70, and a page switching key 71 are provided.

  The microcomputer 80 includes a CPU 80a, a ROM 80b, a RAM 80c, and other A / D conversion function units, interrupt function units, and the like as one integrated circuit. The microcomputer 80 controls various processes executed by the apparatus main body cover 3 and controls the operating states of other peripheral circuits.

  The MUX 62 selects the sense coils X1 to Xm and Y1 to Yn of the sense coil unit 110 one by one based on the coil selection signal S3 from the microcomputer 80. The MUX 62 receives the signal S1 generated in the selected sense coils X1 to Xm, Y1 to Yn, and outputs a corresponding signal S11 to the amplifier circuit 64.

  The amplifier circuit 64 amplifies the signal S11 input from the MUX 62. The signal S12 amplified by the amplifier circuit 64, that is, the electronic marker pen input detection signal S12 is input to the limiter 68. The limiter 68 processes the signal S12 input from the amplifier circuit 64 into a digital signal S15 having only frequency and phase information, and inputs it to the interrupt input of the microcomputer 80. The microcomputer 80 determines the frequency of the signal S1 from the sense coils X1 to Xm and Y1 to Yn by measuring the period of the signal S15 input from the limiter 68 with a timer or the like, and senses currently being scanned. The data is stored in the RAM 80c together with the coil numbers of the sense coils X1 to Xm and Y1 to Yn of the coil unit 110.

  Another signal S13 amplified by the amplifier circuit 64 is input to the rectifier circuit 66. The rectifier circuit 66 amplitude-detects the signal S13 input from the amplifier circuit 64, smoothes it, and converts it into a DC signal. The signal S14 subjected to amplitude detection by the rectifier circuit 66 is input to the microcomputer 80. As described above, the microcomputer 80 has an A / D conversion function, and converts the input signal S14 after amplitude detection into a digital signal. At this time, in the ROM 80b of the microcomputer 80, the detection level of each of the sense coils X1 to Xm, Y1 to Yn and the coordinate data of the contact point between the electronic marker pen 2 and the general book 30 (hereinafter simply referred to as “the electronic marker pen 2 A position coordinate table for storing the offset value of “coordinate data” in association with each other is stored (detailed description is omitted). The microcomputer 80 calculates the coordinate data of the electronic marker pen 2, that is, the x coordinate in the x axis direction and the y coordinate in the y axis direction by applying a position coordinate table to the digital signal. The calculated coordinate data is stored in the flash memory 70 of the peripheral circuit 70 described later. A set of the plurality of calculated coordinate data constitutes stroke data or marking area information input by handwriting by the learner.

  Further, the microcomputer 80, based on the coil numbers of the maximum output sense coils X1 to Xm and Y1 to Yn, stored in the RAM 80c during the scan process of the sense coil unit 110, the sense coils X1 to Xm, The frequency of the signal S1 obtained from Y1 to Yn is detected. Thereby, the frequency value f of the magnetic field received by the sense coils X1 to Xm and Y1 to Yn represented by the coil numbers is detected.

  The wireless communication control unit 69 performs wireless communication according to the BlueTooth standard of this example via the antenna 81, and receives optical data from the wireless communication control unit 58 provided in the electronic marker unit 12 of the electronic marker pen 2.

  An electronic file is prepared in advance in the flash memory 70 corresponding to the storage means, and stroke data, marking area information, etc. based on a plurality of coordinate data calculated by the microcomputer 80 are written and stored in the electronic file. The

  The page switching key 71 is an operation unit that inputs a page number switching operation corresponding to the change of the page every time the learner actually changes the page of the general book 30.

  The battery 21 supplies power to the microcomputer 80 and its peripheral part and the like (not shown in FIG. 4) when a power switch (not shown) provided in the apparatus main body cover 3 is turned on.

  Next, a marking operation using the electronic marker unit 12 of the electronic marker pen 2 will be described with reference to FIG. FIG. 6 is an enlarged view showing a state where marking is performed by bringing the electronic marker portion 12 into contact with the writing surfaces 31L and 31R of the general book 30 in FIG. As shown in the drawing, the learner presses the tip of the electronic marker unit 12 against an arbitrary character string described on the writing surfaces 31L and 31R of the general book 30, thereby marking the marker 51 on the character string. The fluorescent ink 91 is applied and marking is performed. Note that the characters marked with the fluorescent ink 91 can be easily visually recognized by the learner as they are.

  At the same time, while the tip switch 57 of the electronic marker unit 12 is in the ON state by this marking operation, the scanner 52 arranged in parallel with the marker 51 optically reads the character string to be marked to obtain optical data. Then, the control unit 46 generates image data (broadly defined optical data) obtained by converting the optical data into a format such as JPEG. During the marking operation, the scanner 52 is positioned on the front side (right side in the drawing) of the moving direction of the electronic marker unit 12 (the direction from the left side to the right side in the drawing) so that the scanner 52 can clearly read the character string. 52, and marking is performed by positioning the marker 51 on the rear side (left side in the figure).

  At the same time, while the tip switch 57 is in the ON state by this marking operation, the control unit 46 generates a magnetic field from the coil 54 at the specific frequency f3 as described above. Thereby, the apparatus main body cover 3 detects the starting point position and the ending point position which received the magnetic field of the frequency f3 via the coil sheets 100L and 100R, and the position information of the area where marking was performed from these, that is, the marking area described above Information can be acquired.

  When the marking operation performed in this manner is repeated, as shown in FIG. 7A, the electronic marker unit 12 sequentially transmits the generated optical data by wireless communication using Bluetooth, and the apparatus body cover 3 transmits this. Receive. The apparatus body cover 3 stores the marking area information acquired simultaneously with the received optical data in the flash memory 70 in association with each other. When the learner changes the page, each time the learner operates the page switching key 71, the corresponding page number is switched. This page number corresponds to the page number information described in each claim.

  Each of these pieces of information is stored in the flash memory 70 in a data configuration as shown in FIG. That is, information corresponding to each marking location is collected for each page number, and marking area information, optical data reading average position, and optical data are stored in association with each marking location. The average optical data reading position in the figure is position information corresponding to the center position of the marking area where the corresponding optical data has been read. Specifically, the optical data reading average position is between the start position and the end position that constitute the marking area information. The middle position. This optical data reading average position corresponds to the reading reference position information described in each claim.

  After finishing the marking operation, as shown in FIG. 7B, the learner overlays the mask sheet 4 on the marked page of the general book 30 to hide the characters in the marking area (hereinafter referred to as “mask” as appropriate). Called). The mask sheet 4 is made of a translucent material colored in a color that allows only the characters marked corresponding to the color of the fluorescent ink 91 applied by the marker 51 to be blackened and masked.

  The learner estimates the characters in the marking area masked from the sentences before and after being visible through the mask sheet 4. As shown in FIG. 7C, the learner answers by writing the estimated character on the marking area using the electronic pen unit 11. At this time, while the tip switch 42 of the electronic pen unit 11 is turned on by this writing input, the control unit 46 generates a magnetic field from the coil 44 at the specific frequency f1 as described above. Thereby, the apparatus main body cover 3 detects a set of position information that has received the magnetic field of the frequency f1 through the coil sheets 100L and 100R as a pen position coordinate data string, and from this, the learner's written content, that is, the stroke data described above. In addition, the position information of the area where the written input is performed can be acquired.

  As described above, handling of each input information input in the apparatus main body cover 3 is shown in FIG. Optical data (image data of “weather” in the illustrated example) and marking area information input from the electronic marker unit 12 to the apparatus body cover 3 by the learner's marking operation are shown in FIG. It is stored in association with the marking location. At that time, the above-mentioned optical data reading average position is also calculated based on the marking area information, and stored in association therewith.

  On the other hand, when a pen position coordinate data string is input from the electronic pen unit 11 to the apparatus main body cover 3 by writing input at the time of a learner's answer, the stroke data from the pen position coordinate data string is input each time the input is performed. (In the illustrated example, the data for forming the stroke of the same “weather” character) is generated, and the stroke data reading average position is calculated. The average stroke data reading position is position information corresponding to the center position of the input area of the corresponding stroke data, and is specifically an intermediate position of the area occupied by the pen position coordinate data string. The average stroke data reading position corresponds to the writing reference position information described in each claim.

  The apparatus main body cover 3 basically has an optical data reading average position at which the corresponding page number and stroke data reading average position substantially coincide with each other, each time a writing input by the learner using the electronic pen unit 11 is detected. Search for the corresponding optical data. Then, the characters of the stroke data input by writing are converted into text data by a known character recognition process, and the characters of the searched optical data are converted into text data by a known character recognition process. By converting any text data into a character code string that conforms to the same standard, it is possible to determine whether the two match or not. By such correctness determination, it is possible to determine whether the learner has correctly estimated the characters in the marking area and has correctly written.

  In order to realize the functions as described above, the contents of the control processing performed by the CPU (not shown) included in the control unit 46 of the electronic marker pen 2 and the CPU 80a of the apparatus main body cover 3 will be described step by step. .

  First, the content of the control process performed by CPU of the control part 46 of the electronic marker pen 2 at the time of marking operation is shown in FIG. In FIG. 10, the process shown in this flow is started when the learner turns on the power of the electronic marker pen 2, for example. First, in step SS5, the CPU stands by in a loop until an on state is detected by the tip switch 57 of the electronic marker unit 12. In other words, the learner presses the lower end of the electronic marker unit 12 on the writing surfaces 31L and 31R of the general book 30 and waits in a loop until the start of the marking operation is detected. When the ON state is detected by the tip switch 57 of the electronic marker unit 12, the CPU proceeds to the next step SS10.

  In step SS10, the CPU generates a magnetic field having a frequency f3 corresponding to the marker down signal from the coil 54 of the electronic marker unit 12 and transmits it to the coil sheets 100L and 100R of the apparatus body cover 3.

  Then, the process proceeds to Step SS15, and the CPU optically sequentially reads the characters being marked from the scanner 52.

  Then, the process proceeds to step SS20, and the CPU determines whether or not the off state is detected by the tip switch 57 of the electronic marker unit 12. In other words, it is determined whether or not the end of the marking operation is detected by the learner separating the lower end of the electronic marker unit 12 from the writing surfaces 31L and 31R of the general book 30. If the ON state is detected by the tip switch 57 of the electronic marker unit 12, the determination is not satisfied, and the process returns to step SS15 and the same procedure is repeated. On the other hand, when the OFF state is detected by the tip switch 57 of the electronic marker unit 12, the determination is satisfied, and the routine goes to the next Step SS25.

  In step SS25, the CPU generates a magnetic field having a frequency f4 corresponding to the marker up signal from the coil 54 of the electronic marker unit 12 and transmits it to the coil sheets 100L and 100R of the apparatus body cover 3.

  Then, the process proceeds to step SS30, and the CPU generates optical data of the character read in step SS15 and transmits it to the apparatus main body cover 3 via the wireless communication control unit 58. Then, this flow ends.

  Next, FIG. 11 shows the contents of the control process performed by the CPU 80a of the apparatus main body cover 3 during the marking operation. In FIG. 11, the processing shown in this flow is started when the learner turns on the power of the apparatus main body cover 3, for example. First, in step SS105, the CPU 80a detects the page number currently spread in the general book 30.

  Then, the process proceeds to step SS110, and the CPU 80a waits in a loop until it receives a magnetic field having a frequency f3 corresponding to the marker down signal from the electronic marker unit 12. In other words, the loop waits until the learner detects the start of the marking operation. If reception of the marker down signal is detected, the CPU proceeds to the next step SS115.

  In step SS115, the CPU 80a detects the position where the magnetic field of the frequency f3 is detected from the sense coils X1 to Xm and Y1 to Yn as the marking start point position.

  Then, the process proceeds to step SS120, and the CPU 80a stands by in a loop until it receives a magnetic field having a frequency f4 corresponding to the marker up signal from the electronic marker unit 12. In other words, the loop waits until the learner detects the end of the marking operation. If reception of the marker up signal is detected, the CPU 80a proceeds to the next step SS125.

  In step SS125, the CPU 80a detects the position where the magnetic field of the frequency f4 is detected from the sense coils X1 to Xm and Y1 to Yn as the marking end point position.

  Then, the process proceeds to step SS130, and the CPU 80a calculates an intermediate position between the marking start point position detected in step SS115 and the marking end point position detected in step SS125 as an optical data reading average position.

  Then, the process proceeds to step SS135, and the CPU 80a receives optical data from the electronic marker pen 2 via the wireless communication control unit 58.

  Then, the process proceeds to Step SS140, and the CPU 80a reads the page number detected in Step SS105, the marking area information including the start position and the end position detected in Step SS115 and Step SS125, and the optical data read calculated in Step SS130. The average position and the optical data received in step SS135 are stored in the flash memory 70 in association with each other. Then, this flow ends.

  Next, FIG. 12 shows the contents of the control processing performed by the CPU provided in the control unit 46 of the electronic marker pen 2 when writing the answer. In FIG. 12, the process shown in this flow is started when the learner turns on the power of the electronic marker pen 2, for example. The flow shown in FIG. 12 and the flow shown in FIG. 10 are executed in parallel, and the flow in which the ON state of the tip switches 42 and 57 is detected first is executed with priority.

  First, in step SS205, the CPU stands by in a loop until an on state is detected by the tip switch 42 of the electronic pen unit 11. In other words, the learner presses the lower end of the electronic pen unit 11 on the writing surfaces 31L and 31R of the general book 30 and waits in a loop until the start of writing input of the answer is detected. When the ON state is detected by the tip switch 42 of the electronic pen unit 11, the CPU proceeds to the next step SS210.

  In step SS210, the CPU generates a magnetic field having a frequency f1 corresponding to the pen-down signal from the coil 54 of the electronic marker unit 12 and transmits it to the coil sheets 100L and 100R of the apparatus body cover 3.

  Then, the process proceeds to step SS215, and the CPU waits in a loop until the OFF state is continuously detected for a predetermined time by the tip switch 42 of the electronic pen unit 11. In other words, the learner determines whether or not the lower end of the electronic pen unit 11 is separated from the writing surfaces 31L and 31R of the general book 30 for a predetermined time and the end of writing of the answer is detected. If the off state is detected continuously for a predetermined time by the tip switch 42 of the electronic pen unit 11, the CPU proceeds to the next step SS220.

  In step SS220, the CPU generates a magnetic field having a frequency f2 corresponding to the pen-up signal from the coil 54 of the electronic marker unit 12 and transmits it to the coil sheets 100L and 100R of the apparatus body cover 3. Then, this flow ends.

  Next, FIG. 13 and FIG. 14 show the contents of the control processing performed by the CPU 80a of the apparatus main body cover 3 when writing the answer. In FIG. 13, the processing shown in this flow is started when the learner turns on the power of the apparatus main body cover 3, for example. The flow shown in FIG. 13 and the flow shown in FIG. 11 are executed in parallel, and the flow in which the marker down signal or pen down signal is received first is executed with priority.

  First, in step SS305, the CPU 80a detects the page number currently spread in the general book 30.

  Then, the process proceeds to step SS310, and the CPU 80a waits in a loop until it receives a magnetic field having a frequency f1 corresponding to the pen-down signal from the electronic pen unit 11. In other words, the loop waits until the start of writing input of the answer by the learner is detected. If reception of the pen-down signal is detected, the CPU 80a proceeds to the next step SS315.

  In step SS315, the CPU 80a sequentially detects the position where the magnetic field having the frequency f1 is detected from the sense coils X1 to Xm and Y1 to Yn as pen position coordinate data.

  Then, the process proceeds to step SS320, and the CPU 80a determines whether or not a magnetic field having a frequency f2 corresponding to the pen-up signal has been received from the electronic pen unit 11. In other words, it is determined whether or not the end of writing input of the answer by the learner has been detected. If a pen-down signal is received from the electronic pen unit 11, the determination is not satisfied and the process returns to step SS315 and the same procedure is repeated. On the other hand, if a pen-up signal is received from the electronic pen unit 11, the determination is satisfied, and the routine goes to the next Step SS325.

  In step SS325, the CPU 80a generates stroke data indicating a character stroke of the written content from the pen position coordinate data string detected in step SS315.

  Then, proceeding to step SS330, the CPU 80a recognizes the stroke data generated at step SS325 and generates text data.

  Then, the process proceeds to Step SS335, and the CPU 80a calculates the approximate center position of the area occupied by the CPU 80a as the stroke data reading average position from the pen position coordinate data detected in Step SS315.

  Then, the process proceeds to Step SS340, and the CPU 80a searches for the optical data reading average position within a certain range from the stroke data reading average position calculated in Step SS335, corresponding to the page number detected in Step SS305, Acquire corresponding optical data.

  Then, proceeding to step SS345, the CPU 80a generates text data by performing optical character recognition processing, so-called OCR processing, on the optical data acquired in step SS34.

  Then, proceeding to step SS350, the CPU 80a collates the two text data respectively generated at step SS325 and step SS345, and determines whether or not their character code strings match. In other words, whether or not the answer is correct is determined by matching the character written in the marking area of the general book 30 with the character written by the learner. If the two text data match, the determination is satisfied, and the CPU 80a moves to step SS355.

  In step SS355, the CPU 80a performs a correct answer process for notifying that the learner's answer is correct by displaying on an appropriate display unit (not shown) or by generating sound on the sound generation unit. Then, this flow ends.

  On the other hand, if the two text data do not match in the determination in step SS350, the determination is not satisfied, and the CPU 80a proceeds to step SS400.

  In step SS400, the CPU 80a executes an incorrect answer process shown in FIG. Then, this flow ends.

  Next, FIG. 14 shows the details of the control process of the incorrect answer process in step SS400 performed by the CPU 80a of the apparatus main body cover 3.

  First, in step SS405, the CPU 80a notifies that the learner's answer is correct by displaying on an appropriate display unit (not shown) or by sounding on the sound generation unit.

  Then, the process proceeds to step SS410, and the CPU 80a clears all the stroke data generated in step SS330 and the original pen position coordinate data string.

  Then, the process proceeds to Step SS415, and the CPU 80a determines whether or not the learner has made an operation input to select the continuous answer mode via an operation unit (not shown). If this continuous answer mode is not selected, the learner is considered to give up the answer of the character in the marking area and move to the answer of another character. In this case, the determination is not satisfied and this flow ends.

  On the other hand, when the continuous answer mode is selected, it is assumed that the learner answers the character in the marking area again. In this case, the determination is satisfied, and the CPU 80a moves to next Step SS420.

  In step SS420, the CPU 80a stands by in a loop until it receives a magnetic field having a frequency f1 corresponding to the pen-down signal from the electronic pen unit 11. In other words, the loop waits until the start of writing input of the re-answer by the learner is detected. When the reception of the pen-down signal is detected, the CPU 80a proceeds to the next step SS425.

  In step SS425, the CPU 80a sequentially detects the position where the magnetic field having the frequency f1 is detected from the sense coils X1 to Xm and Y1 to Yn as pen position coordinate data.

  Then, the process proceeds to step SS430, and the CPU 80a determines whether or not a magnetic field having a frequency f2 corresponding to the pen-up signal has been received from the electronic pen unit 11. In other words, it is determined whether or not the end of writing of the re-answer by the learner is detected. If a pen-down signal is received from the electronic pen unit 11, the determination is not satisfied and the process returns to step SS315 and the same procedure is repeated. On the other hand, when the pen-up signal is received from the electronic pen unit 11, the determination is satisfied, and the routine goes to the next Step SS435.

  In step SS435, the CPU 80a generates stroke data indicating a character stroke of the written content from the pen position coordinate data string detected in step SS425.

  Then, proceeding to step SS440, the CPU 80a recognizes the stroke data generated at step SS435 and generates text data.

  Then, proceeding to step SS445, the CPU 80a collates the two text data respectively generated at step SS440 and step SS345, and determines whether or not their character code strings match. In other words, it is determined whether or not the character written in the marking area of the general book 30 matches the character written by the learner and whether or not the re-answer is correct. During execution of the incorrect answer process, since the text data of the optical data to be collated is already generated and determined in step SS345, the search corresponding to steps SS335 to SS345 in the flow of FIG. No procedure or generation procedure is required. Thereby, in the continuous answer mode, the learner can perform correct / incorrect determination of the same character even if the learner writes the re-answer at an arbitrary position without being limited to the marking area.

  If the two text data do not match, the determination is not satisfied, and the CPU 80a returns to step SS405 and repeats the same procedure.

  On the other hand, if the two text data match, the determination is satisfied, and the CPU 80a moves to step SS450.

  In step SS450, the CPU 80a performs a correct answer process for notifying that the learner's answer is correct by displaying on an appropriate display unit (not shown) or by generating sound on the sound generating unit. At this time, the number of times the re-answer is repeated may be notified together. Then, this flow ends.

  In the above, the procedure of Step SS130 in the flow of FIG. 11 and the procedure of Step SS335 in the flow of FIG. 13 correspond to the calculation means described in each claim, and the procedures of Step SS325 and Step SS435 are described in each claim. The process of step SS340 corresponds to the determination means described in each claim, and the procedures of step SS345 and step SS445 correspond to the determination means described in each claim. The procedure of step SS140 corresponds to the storage control means described in each claim. Moreover, the procedure of step SS355, step SS405, and step SS450 is equivalent to the alerting | reporting means of each claim.

  As described above, the handwriting learning device 1 of the present embodiment has a configuration that mainly inputs two types of data. The first data is optical data obtained by optically reading a character previously written in the general book 30 attached to the device main body cover 3 of the handwriting learning device 1. The second data is stroke data obtained by electromagnetically reading an actual writing operation by the learner on the general book 30 attached to the device main body cover 3 of the handwriting learning device 1. Each data is basically input at an arbitrary same position on the general book 30, and the input position information is also read together with the corresponding data.

  Then, the procedure of step SS340 determines the optical data corresponding to each stroke data by comparing the optical data reading average position with the stroke data reading average position. The procedure of step SS345 determines whether or not the characters that have been subjected to the recognition processing of the optical data and the stroke data associated by the procedure of step SS340 have the same contents.

  As described above, in the present embodiment, a predetermined character previously written at a predetermined position on the general book 30 attached to the apparatus main body cover 3 of the handwriting learning apparatus 1 is read in advance by the scanner 52 of the electronic marker unit 12. It can be read as optical data, and then it can be determined whether the character written by the electronic pen unit 11 at the same position is the same. As a result, a highly versatile problem creation using the general book 30 and its memorization learning can be performed.

  Further, in the present embodiment, in particular, the scanner 52 has a tip switch 57 that can detect the marker down state and the marker up state with respect to the general book 30 of the scanner 52. Optical reading and generation of optical data are started, and the wireless communication control unit 58 of the electronic marker unit 12 outputs optical data generated by the scanner 52 when the marker up state is detected by the tip switch 57. As a result, the marking area information detected by the leading edge switch 57 that the scanner 52 is close to the general book 30 can be accurately associated with the reading position information of the optical data. In addition, it is possible not only to immediately determine whether the memorized answer is correct by transmitting in units of strokes, but also to reduce the peak current consumption by distributing the CPU load.

  In the present embodiment, in particular, when the apparatus main body cover 3 acquires the optical data input from the wireless communication control unit 69, the optical data reading average position calculated in the procedure of step SS130 is acquired immediately before that. The procedure of step SS140 stored in the flash memory 70 is executed so as to be stored in association with the optical data as position information corresponding to the optical data. Thereby, the flash memory 70 can store the optical data and the optical data reading average position in association with each other accurately.

  In the present embodiment, in particular, the procedure of Step SS140 stores the optical data in the flash memory 70 in association with the corresponding optical data reading average position and the page number of the general book 30 corresponding to the optical data reading average position. Let Thereby, even if the general book 30 has a plurality of spread pages, the procedure of step SS140 can be stored in the flash memory 70 with the optical data and the optical data reading average position accurately associated with each page.

  In this embodiment, in particular, the electronic pen unit 11 has a tip switch 42 capable of detecting a pen-down state and a pen-up state with respect to the general book 30. When the pen-down state is detected by the tip switch 42, the electronic pen unit 11 is detected. A pen-down signal of frequency f1 is generated and transmitted by the LC oscillation circuit 41. When the pen-up state is continuously detected for a predetermined time or more by the tip switch 42, a pen-up signal of frequency f2 is generated by the LC oscillation circuit 41. When transmitting and receiving the pen-up signal of frequency f2 from the sense coil unit 110, the procedure of step SS340 determines the optical data. And the procedure of step SS345 is the character obtained from the optical data determined before switching when the optical data determined by the procedure of step SS340 is switched to optical data different from the previous optical data. Then, it is determined whether or not the characters obtained from the stroke data generated before the switching is the same.

  Thereby, when the electronic pen unit 11 is continuously separated from the general book 30 for a predetermined time or more, it is considered that the writing input corresponding to one optical data is completed, and the procedure of Step SS340 is newly performed. The correct optical data. The procedure of step SS345 can be determined by accurately associating optical data and stroke data.

  In the present embodiment, in particular, when the marker down state is detected by the tip switch 57, the electronic marker unit 12 generates and transmits a marker down signal of the frequency f3 by the LC oscillation circuit 56, and the tip switch 57 performs the marker up state. Is detected, a marker up signal of frequency f4 is generated by the LC oscillation circuit 56 and transmitted. Thereby, it is possible to determine which of the electronic pen unit 11 and the electronic marker unit 12 is close to or away from the general book 30 by determining the frequency of the magnetic field received by the sense coil unit 110.

  In this embodiment, in particular, the procedure of Step SS355, Step SS405, and Step SS450 notifies the determination result in the procedure of Step SS345 and Step SS445, so that the characters and learners written on the general book 30 are written. It is possible to clearly notify whether or not the inputted character is the same, that is, whether or not the answer by the learner is correct. In the above-described embodiment, the notification is performed using an appropriate display unit or sound generation unit included in the device main body cover 3 of the handwriting learning device 1, but the present invention is not limited thereto. In addition, a personal computer (not shown) or the like may be connected to the apparatus main body cover 3 and the above notification may be given by a display unit or a sound generation unit of the personal computer.

  In the above embodiment, the electronic pen unit 11 and the electronic marker unit 12 are integrally configured as one electronic marker pen 2, but the present invention is not limited to this, and the electronic pen unit 11, the electronic marker unit 12, May be configured separately. In addition to the scanner 52, for example, a camera or the like may be used as an optical component that optically reads characters formed on the general book 30 by the electronic marker unit 12.

  In addition, in the above, the arrow shown in each figure of FIG. 4, FIG. 6, etc. shows an example of the flow of a signal, and does not limit the flow direction of a signal.

  10, 11, 12, 13, 14, etc. are not intended to limit the present invention to the procedure shown in the above flow, and the procedure is within the scope not departing from the spirit and technical idea of the invention. May be added / deleted or the order may be changed.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

DESCRIPTION OF SYMBOLS 1 Handwriting learning apparatus 2 Electronic marker pen 3 Apparatus main body cover 11 Electronic pen part (electronic writing instrument)
12 Electronic marker part 30 General book (written body)
41 LC oscillation circuit (writing signal generation means)
42 Tip switch (Writing perspective detection means)
44 Coils (Magnetic field transmission coils)
46 Control unit 51 Marker 52 Scanner (reading means)
54 Coil (Magnetic field transmission coil)
56 LC oscillation circuit (reading position signal generating means)
57 Tip switch (reading distance detection means)
58 Wireless communication control means (data output means)
70 Flash memory (memory means)
80a CPU
110 sense coil section (multiple coils)

Claims (7)

An electronic writing instrument that has a writing signal generating means including a coil for magnetic field transmission, and generates and transmits a writing signal for performing data input corresponding to the writing content to the writing object by the writing signal generating means;
A reading means for optically reading characters previously written on the writing body and generating corresponding optical data;
Data output means for outputting the optical data generated by the reading means;
A reading position signal generating unit provided in the reading unit, including a magnetic field transmitting coil, and generating a reading position signal for detecting the position of the character of the writing object read by the reading unit by the magnetic field transmitting coil; ,
The writing signal transmitted from the writing signal generating means of the electronic writing instrument and the reading position signal transmitted from the reading position signal generating means of the reading means are received, and the writing signal and the reading position signal are received. A plurality of coils each capable of outputting an output value induced by
An operation for calculating writing reference position information indicating a position where the electronic writing instrument has written, and reading reference position information indicating a position where the reading unit has read the character, based on reception results in the plurality of coils including the output value. Means,
Data input means for inputting the optical data output from the data output means;
Storage means for storing the reading reference position information of the reading means calculated by the calculation means corresponding to the optical data input from the data input means in association with the optical data;
Based on the reception results in the plurality of coils including the output value, stroke data corresponding to the writing on the writing object by the electronic writing tool corresponds to the writing reference position information of the electronic writing tool calculated by the calculation means. Stroke data generating means for generating
The writing reference position information corresponding to the stroke data generated by the stroke data generation means is compared with the reading reference position information corresponding to the optical data stored in the storage means, and the stroke data is Determining means for determining the corresponding optical data;
Determining means for determining whether or not the character obtained by recognizing the optical data determined by the determining means and the character obtained by recognizing the stroke data have the same content;
An electronic writing apparatus comprising: The electronic writing device according to claim 1,
Read distance detection means capable of detecting a proximity state and a separation state of the reading means with respect to the writing object,
The reading means includes
When the proximity state is detected by the reading distance detection means, the reading of the character and generation of the optical data are started,
The data output means includes
An electronic writing apparatus, wherein the optical data generated by the reading unit is output when the separation state is detected by the reading / near / near proximity unit. The electronic writing device according to claim 2,
When the optical data input from the data input unit is acquired, the position information of the reading unit calculated by the calculation unit immediately before is acquired as position information corresponding to the acquired optical data. An electronic writing apparatus comprising storage control means for controlling the storage means so as to be stored. The electronic writing device according to claim 3,
The storage control means
The electronic writing characterized by controlling the storage means so as to store the optical data in association with the position information of the corresponding reading means and the page number information of the writing object corresponding to the position information. apparatus. The electronic writing device according to any one of claims 1 to 4,
A writing distance detection means capable of detecting a proximity state and a separation state of the electronic writing instrument with respect to the writing object;
The electronic writing instrument is:
When the proximity state is detected by the writing distance detection means, the writing signal is generated and transmitted by the writing signal generation means in the first mode,
The writing signal is generated and transmitted by the writing signal generating means in the second mode when the separated state is continuously detected for a predetermined time or longer by the writing distance detection means,
The determining means determines the optical data when receiving the writing signal of the second aspect from the plurality of coils,
The determination means includes
When the optical data determined by the determining means is switched to optical data different from the optical data so far, the optical data is obtained by optical character recognition processing from the optical data determined before switching. The electronic writing apparatus is characterized by determining whether or not the character and the character obtained by the character recognition process using the stroke data generated before switching are the same. The electronic writing device according to claim 5,
The reading means includes
Read distance detection means capable of detecting a proximity state and a separation state of the reading means with respect to the writing object,
When the reading distance detection means detects the proximity state, the reading position signal is generated and transmitted by the reading position signal generation means in the third aspect,
An electronic writing apparatus, wherein the reading position signal is generated and transmitted by the reading position signal generation means in a fourth mode when the separation state is detected by the reading distance detection means. In the electronic writing instrument according to any one of claims 1 to 6,
An electronic writing apparatus comprising an informing means for informing a judgment result of the judging means.

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