JP2010089346A - Ballpoint pen with diagnostic function and pen system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an effective use of writing information without impairing a function as a ballpoint pen. <P>SOLUTION: The ballpoint pen 10A includes a magnetized ball, a holder that rotatably holds the ball, forming an ink-conductive hole for supplying ink on the surface of the ball, magnetic sensors 118, 120, 122 and 124 to be arranged adjacent to the outside of the holder, a data-processing unit 300 for computing different items of writing information based on the detection output of the magnetic sensors and a diagnosis/determination unit 310 for performing various diagnostic/determination functions based on the writing information from the data processing unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ballpoint pen with a diagnostic function and a pen system for performing various diagnoses and determinations from written information.

Conventionally, various additional functions are given to the ballpoint pen. For example, in Patent Document 1, a roller is attached to the tip of a writing instrument such as a ballpoint pen, and the length is measured and digitally displayed by detecting the rotation of the roller so that the roller also contacts the writing surface at the time of writing. A writing instrument having a length measuring function is disclosed.
No. 3-31586

  However, in Patent Document 1, since the writing portion and the length measurement portion are separate, accurate side length cannot be performed, and the function as a writing instrument tends to be impaired. In recent ballpoint pens, not only the length measurement function but also additional functions are required, and the demand for multifunctional ballpoint pens that can be used in a wide range of applications is increasing. In particular, writing information with a ballpoint pen can be used for various diagnoses and determinations, and the addition of functions related to this has a high market need.

  The present invention has been made in view of the above points, and an object thereof is to provide a ballpoint pen with a diagnostic function and a ballpoint pen system that can effectively use writing information without impairing the function as a ballpoint pen.

  In order to solve the above-mentioned problems, a ballpoint pen with a diagnostic function according to the present invention has a magnetized ball, an ink guide hole for rotatably holding the ball and supplying ink to the surface of the ball. Holder, a magnetic sensor arranged near the outside of the holder, a data processing unit that calculates various writing information based on detection output of the magnetic sensor, and various types based on writing information from the data processing unit And a diagnosis / determination unit for performing the diagnosis / determination.

  In addition, the ballpoint pen system with a diagnostic function of the present invention includes a magnetized ball, a holder that rotatably holds the ball and forms an ink guide hole for supplying ink to the surface of the ball, Data processing for calculating various writing information based on the detection output of the magnetic sensor provided on the ballpoint pen or provided separately from the ballpoint pen, provided with a magnetic sensor disposed near the outside of the holder And a diagnosis / determination unit that is provided separately from the ballpoint pen and performs various diagnoses / determinations based on writing information from the data processing unit.

  According to this configuration, writing information can be detected using a writing ball, and various diagnoses and determinations can be performed using the detected information, so that the writing information can be effectively used without impairing the function of the ballpoint pen. It is possible to provide a ballpoint pen and a ballpoint pen system with a diagnostic function that can be utilized for various purposes.

  According to the ballpoint pen with a diagnostic function of the present invention, based on a magnetized ball, a holder that rotatably holds the ball, a magnetic sensor disposed near the outside of the holder, and a detection output of the magnetic sensor Data processing unit for calculating writing information and a diagnostic unit for diagnosing the character of the writer based on the writing information calculated by the data processing unit, so that the function as a ballpoint pen is not impaired. Written information can be used effectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a basic conceptual diagram of a ballpoint pen that includes two magnetic sensors and is suitable mainly for measuring a writing distance. The ball 12 is magnetized, and preferably a holder 14 for holding it is also magnetized. Two magnetic sensors 16 and 18 are provided outside the holder 14 with the holder 14 in between, and their magnetic sensing directions indicated by arrows 20 and 22 are perpendicular to the direction of the magnetic field produced by the holder 14. It intersects the direction of the magnetic field produced by the holder 14 and faces the same direction. As the magnetic sensors 16 and 18, for example, it is preferable to use an MI sensor including a magnetic impedance (MI) element exhibiting high magnetic detection sensitivity and a detection circuit thereof.

  The magnetic sensing direction of the magnetic sensors 16 and 18 is a direction perpendicular to the magnetic field, which is originally not suitable for detecting the magnetic field. However, when the ball 12 rotates with writing, as shown in FIG. A signal corresponding to the rotation of the correct ball is obtained. In an arrangement in which the magnetic sensing directions of the two magnetic sensors 16 and 18 are the same as shown in FIG. 2, signals that change in opposite phases from each other are output from the two magnetic sensors 16 and 18, while the ballpoint pen 10 is held in the hand. When shaken, a signal changing in phase is output as shown in FIG.

On the other hand, when the magnetic sensors 16 and 18 are arranged so that the magnetic sensing directions are opposite to each other, this in-phase / inverse phase relationship is reversed, so that the phase is reversed when pen is shaken, and the phase is the same when writing. Become.
Therefore, the rotation of the ball 12 can be detected from the change in the sensor output when the outputs from the sensors 16 and 18 are in opposite phases (in the latter case, they are in phase). In the present invention, as will be described later, the rotation of the ball is detected by detecting the increase and decrease patterns from the outputs of the sensors 16 and 18, respectively.

  FIG. 3 is a perspective view of the ballpoint pen 10. In the figure, reference numeral 24 denotes an LCD display for digitally displaying information such as diagnostic results to be described later. 4 is a cross-sectional view taken along a plane that includes the central axis of the ballpoint pen 10 and is perpendicular to the plane of the LCD display 24, and FIG. 5 is a cross-sectional view that is cut along a plane that includes the central axis and is parallel to the plane of the LCD display 24. 6 is an enlarged cross-sectional view of the tip portion of the ballpoint pen 10, and FIG. 7 is a cross-sectional view taken along line AA of FIG. 4 to 7, the same reference numerals are assigned to the same components as those shown in FIG.

  As apparent from FIGS. 4 to 7, the magnetic sensors 16 and 18 are not directly attached to the holder 14, but are fixed to the shaft tube 30 side. Therefore, the part of the replacement core composed of the ball 12, the holder 14, and the ink tube 32 (see FIG. 6) is the same as the normal replacement of the ballpoint pen except that the ball 12 and the holder 14 are magnetized. It is exchangeable.

  The outputs of the magnetic sensors 16 and 18 are input to the data processing unit 34 via the lead wires 26 and 28. In the data processing unit 34, the rotation of the ball 12 is detected according to the logic described later based on the outputs of the magnetic sensors 16, 18, and the stroke length of the drawn line (that is, the writing distance) is calculated based on the rotation. Reference numeral 36 denotes a battery serving as a power source.

  FIG. 8 is a block diagram showing details of the hardware configuration of the data processing unit 34. The voltage outputs of the sensors 16 and 18 pass through the filters 38 and 40, are amplified by the amplifiers 42 and 44 if necessary, are converted into digital signals by the A / D converter 48 built in the microcomputer 46, and the counting unit 50 Is input. The counting unit 50 detects the rotation of the ball 12 from the change in sensor output by the process described below, and converts it into a line length (writing distance).

  FIG. 9 is a flowchart of processing in the counting unit 50 that detects the rotation of the ball 12. In FIG. 9, first, a variable SP indicating a past state is initialized to zero (step 1000), a sensor output is captured (step 1002), and a logic filter process is performed (step 1004). As the logical filter process, for example, a moving average process can be used. Next, an increase pattern and a decrease pattern are detected for each of the sensor outputs after the logic filter processing (step 1006).

  In the increase / decrease pattern detection, for example, when increasing n times (for example, n = 3) continuously, the increase pattern is detected, and when decreasing continuously n times, the decrease pattern is detected. Alternatively, an increase pattern may be detected when increasing m times (for example, n = 5, m = 4) among consecutive n times, and a decreasing pattern may be detected when decreasing m times.

  When an increase pattern is detected in channel 1 (sensor 16) and a decrease pattern is detected in channel 2 (sensor 18) (step 1008), state "a" is substituted into variable SC representing the current state (step 1008). Step 1010) If the variable SP indicating the past state indicates the state “b” (Step 1012), the count value indicating the rotation of the ball 12 is increased (Step 1014), and the value of the variable SC indicating the current state is increased. Is transferred to the variable SP indicating the past state (step 1016), the past data of the sensor output is updated (step 1018), and the processing returns to step 1002.

  When a decrease pattern is detected in channel 1 (sensor 16) and an increase pattern is detected in channel 2 (sensor 18) (step 1020), state "b" is substituted into variable SC representing the current state (step 1020). Step 1022) If the variable SP indicating the past state indicates the state “a” (Step 1024), the count value indicating the rotation of the ball 12 is increased (Step 1014), and the value of the variable SC indicating the current state is increased. Is transferred to the variable SP indicating the past state (step 1016), the past data of the sensor output is updated (step 1018), and the processing returns to step 1002.

  In cases other than the above, the state in which the increase pattern is detected on one side of the sensor output and the decrease pattern is detected on the other side is referred to as state “a” or state “b”. maintain. Note that when the pen body is shaken without writing, the signal changes in phase as described above, so that neither the state “a” nor the state “b” is applicable. Then, when the state changes from “a” to “b” or from “b” to “a”, the count is counted up assuming that the ball 12 is half-rotated. Thereby, the rotation of the ball 12 can be detected.

  The above is a case where the detection directions of the sensors 16 and 18 are the same. In the case of being arranged in the opposite direction, the state “a” is defined when the increase pattern is detected by both sensor outputs, and the state “b” is defined when the decrease pattern is detected by both sensor outputs. What is necessary is just to process.

  FIG. 10 shows the outputs of the two sensors 16 and 18 and the rotation detection result when writing with the ballpoint pen 10. In the figure, the detected states are indicated by “a” and “b”, and the timing at which rotation is detected is indicated by vertical lines.

  FIG. 11 is a basic conceptual diagram of a ballpoint pen that includes four magnetic sensors and is suitable mainly for measurement in the writing direction. (A) of FIG. 11 is the figure which looked at the ball-point pen 10 from the ball | bowl 12 side, (b) is the figure which looked at the ball-point pen 10 from the side.

  Reference numeral 116 indicates an ink tube. Around the holder 14, four magnetic sensors 118, 120, 122, 124 are arranged at approximately 90 ° intervals. The sensors 118 and 120 form a first pair sandwiching the central axis 126 of the ballpoint pen 10, and the sensors 122 and 124 form a second pair sandwiching the central axis 126 of the ballpoint pen 10. The magnetic sensing directions of the magnetic sensors in each pair are arranged so as to face each other as indicated by arrows in the drawing. In addition, you may arrange | position the magnetic sensitive direction of a sensor pair in the same direction.

  The magnetic sensors 118, 120, 122, and 124 and the data processing unit 125 are fixed to a not-shown ballpoint pen body, and a replacement core composed of the previously magnetized ball 12, the holder 14, and the ink tube 116 is inserted into the ballpoint pen body. Thus, the arrangement shown in FIG. 11 is obtained. The operation of magnetizing the ball 12 may be performed after the replacement core is inserted into the ballpoint pen body.

  The material of the holder 14 that holds the ball 12 is preferably a material that cannot be attracted to a magnet such as white and white.

  11A corresponds to a view seen from the back side of the paper surface when writing with the ballpoint pen 10, so that when viewed from the front side of the paper surface, the normal xy coordinates are obtained. The x axis and the y axis are defined as shown in FIG. 12 to 15 show waveforms of output signals of the magnetic sensors 118, 120, 122, and 124 when written in the x direction, the -x direction, the y direction, and the -y direction, respectively. The magnetic sensors 118, 120, 122, and 124 are magnetic sensors that use the magneto-impedance effect, and have a magnetic resolution of 0.2 μT and an operation range of ± 200 μT. The diameter of the ball 12 is φ0.7, and the magnetization strength is 21 μT. Similar results are obtained for balls 12 of φ0.38, φ0.5, and φ1.4 having magnetization strengths of 4 μT, 8 μT, and 120 μT, respectively. Incidentally, the geomagnetism near Tokyo is about 30 μT in the horizontal direction and 35-40 μT in the vertical direction.

  12 to 15, one cycle of the output signal of each sensor 118, 120, 122, 124 corresponds to one rotation of the ball 12. As can be seen from FIG. 12, when writing is performed in the x-axis direction from the sensor 124 toward the sensor 122, signals in the same phase are output from the sensor pairs 118 and 120 arranged in a direction perpendicular to the writing direction. A signal of phase difference θ is output from the sensor pair 122, 124 arranged in the writing direction. The phase of the output signal of the sensor 124 arranged rearward in the writing direction is advanced by θ relative to the output signal of the sensor 122 arranged forward. When writing is performed in the −x direction in FIG. 13, the phase relationship between the output signals of the sensor 122 and the sensor 124 is reversed as compared with FIG. 12. When writing is performed in the y direction in FIG. 14, the output signals from the sensor pairs 122 and 124 arranged in a direction perpendicular to the writing direction have the same phase, and the output signal of the sensor 118 arranged rearward in the writing direction. Is advanced in phase by θ with respect to the output signal of the sensor 120 arranged in front. In the case of writing in the −y direction in FIG. 15, the phase relationship between the output signals of the sensor 118 and the sensor 120 is reversed as compared with FIG. 14.

  It has been found that the phase difference θ of the output signals of each sensor pair decreases as the angle formed by the writing direction and the magnetic sensing direction of the sensor increases, and increases as the angle formed by both decreases. It has also been found that the phase difference θ depends only on the writing direction and does not depend on the writing speed.

  On the other hand, when an external magnetic field is detected, the magnetic sensing direction of the sensor pair is opposite, so the output signal of the sensor pair changes in the opposite phase (phase difference 180 °). Can be determined. When the sensor pairs are arranged in the same direction, the phase difference during writing is 180 ° −θ (0 ≦ θ ≦ θmax), and the phase difference when the ballpoint pen 10 is shaken by hand is zero. It becomes.

  In any case, the direction of writing can be detected by detecting the phase difference of the output signals of the sensor pair or the amount of phase corresponding to the phase difference and the phase relationship. Further, with the arrangement as shown in FIG. 11, the data processing unit 125 calculates data indicating the phase difference of the output signals of the sensor pairs 122 and 124 arranged in the x-axis direction and the phase relationship. To obtain a component Δx in the x-axis direction of the writing, and calculate data indicating the phase difference of the output signals of the sensor pairs 118 and 120 arranged in the y-axis direction and the phase anteroposterior relation. Of component Δy is obtained. By connecting these to the input of a pointing device such as a mouse input of a computer, the ballpoint pen 10 can be used as a pointing device instead of a mouse.

For example, as shown in FIG. 16, as the data indicating the phase difference and the phase relationship of the output signals of the above-described sensor pair used as the components Δx and Δy of each axis, the maximum value of the leading phase signal (or The time from the minimum value) to the maximum value (or minimum value) of the delayed phase signal is a, and the minimum value (or maximum value) of the delayed phase signal from the maximum value (or minimum value) of the delayed phase signal ), When the phase of the signal from the sensor 124 arranged rearward in the x-axis direction is ahead of the phase of the signal from the sensor 122 arranged forward in the x-axis direction, Based on the values of ax and bx obtained from the output signals 122 and 124, Δx is calculated by the following equation (1). When the phase of the output signal of the sensor 122 is advanced, Δx is expressed by the following equation (2). Calculate according to
Δx = ax / (ax + bx) (1)
Δx = −ax / (ax + bx) (2)

When the phase of the output signal from the sensor 118 arranged in the y-axis direction is ahead of the phase of the output signal from the sensor 120 arranged in the front of the y-axis, it was obtained from the output signals of the sensor pairs 118 and 120 Based on the values of ay and by, Δy is calculated by the following equation (3). When the phase of the output signal of the sensor 120 is advanced, Δy is calculated by the following equation (4).
Δy = ay / (ay + by) (3)
Δy = −ay / (ay + by) (4)

  Note that ax / bx, ay / by may be used instead of ay / (ay + by), ay / (ay + by), but it becomes weak against speed changes.

More specifically, when the x-axis component Δx of the writing is positive, the phase of the output signal from the sensor 124 positioned rearward in the x-axis direction is positioned forward as shown in FIG. As shown in FIGS. 17A and 17B, the phase of the output signal from the sensor 122 is advanced.
Pattern P1 +: maximum of sensor 124 → maximum of sensor 122 → minimum of sensor 124
Pattern P2 +: Two patterns of the minimum of the sensor 124 → the minimum of the sensor 122 → the maximum of the sensor 124 appear alternately.

On the other hand, when the x-axis component Δx of writing is negative, it is shown in (c) and (d) of FIG.
Pattern P1-: Maximum of sensor 122 → Maximum of sensor 124 → Minimum of sensor 122
Pattern P2-: Two patterns of the minimum of the sensor 122 → the minimum of the sensor 124 → the maximum of the sensor 122 appear alternately.

Therefore, the maximum and minimum of the output signals of the sensor pairs 122 and 124 are continuously detected, and the detection time Ti is stored in time series whenever the maximum or minimum of any sensor output signal is detected. It is determined whether the three local maximum / minimum detection results coincide with any of the above P1 +, P2 +, P1-, P2-. Then, when it coincides with P1 + or P2 +, Δx is calculated by the equation (5), and when it coincides with P1− or P2−, Δx is calculated by the equation (6).
Δx = (Ti-1-Ti-2) / (Ti-Ti-2) (5)
Δx = − (Ti-1-Ti-2) / (Ti-Ti-2) (6)

  The same applies to Δy. Thereby, the values of Δx and Δy can be obtained for each half cycle of the sensor output signal.

  Regarding the detection of the maximum and minimum of the output signal of the sensor, for example, the rising pattern and the falling pattern of the signal are detected, and the rising pattern is detected from the previous time when the rising pattern is detected or none is detected. The maximum detection is made when the state changes to the state where the rising pattern is detected, and the minimum detection is made when the rising pattern is detected this time from the state where the falling pattern was detected or none was detected last time.

  Regarding the detection of the ascending / descending pattern, for example, when rising continuously n times (for example, n = 3), the rising pattern is detected, and when falling continuously n times, the falling pattern is detected. Alternatively, the rising pattern may be detected when m (e.g., n = 5, m = 4) rises out of n consecutive times, and the descending pattern may be detected when decreasing m times.

Further, instead of storing the time Ti at the time of maximum / minimum detection, the elapsed time ΔTi (= Ti−Ti−1) from the previous detection may be measured by a timer and stored. In this case, Δx is calculated by Equation (7) or Equation (8).
Δx = Ti−1 / (ΔTi + Ti−1) (when P1 +, P2 +) (7)
Δx = −Ti−1 / (ΔTi + Ti−1) (when P1− and P2−) (8)

  FIG. 18 is a flowchart illustrating an example of the calculation process of Δx executed in the data processing unit 125 according to the above procedure.

  First, the current state (up / down / neither) of the sensors 122, 124 is detected from the A / D conversion results of the outputs of the current sensors 122, 124 and their past histories (step 2000). Store (step 2002). Next, the current state is compared with the previous state to detect the maximum / minimum of the outputs of the sensors 122 and 124 (step 2004). When the maximum / minimum is not detected (step 2006), Δx is set to zero. (Step 2014), the process returns to Step 2000. When the maximum / minimum is detected (step 2006), the timer value at that time is stored as ΔTi, and the timer is restarted from zero (step 2008). Next, it is determined whether the maximum / minimum detection history of the outputs of the sensors 122, 124 matches any of the patterns P1 +, P2 +, P1-, P2- (step 2010). ), Δx is set to zero (step 2014), and the process returns to step 2000. When it coincides with either one (step 2012), Δx is calculated by equation (7) or equation (8) according to the coincident pattern (step 2016). When the calculated value of Δx is larger than the maximum value Δxmax (step 2018), it is determined that the change is not caused by the rotation of the ball 12, and Δx is set to zero (step 2020). In either case, the process returns to step 2000 and the processes in and after step 2000 are repeated at a constant cycle.

The calculation of Δy is the same as described above, and therefore the description thereof is omitted.
In the method described above, it is determined in step 2018 whether or not writing is in progress, that is, whether or not the ball 12 is rotating.
Δx> Δxmax
Is done by. Alternatively, it may be determined that writing is in progress when the differential signal of the output signal of the sensor pair changes with a predetermined amplitude or more. This is because when the signal is not being written, the output signal of the sensor pair changes in the opposite phase, so that the amplitude of the differential signal is small, and when the signal is being written, it changes at a predetermined amplitude or more. That is, as shown in FIG. 19, when a maximum / minimum is detected (step 2006) and ΔTi is stored, the value (differential) i of the differential signal is also stored (step 2008 ′). In step 2018 '
| (Differential) i- (differential) i-1 |> C1, or
| (Differential) i- (Differential) i-2 |> C2
At this time, it is determined that writing is in progress, and otherwise, it is determined that writing is not being performed, and Δx = 0 is set (step 2020). C1 and C2 are experimentally determined constants.

Instead of calculating Δx (and Δy) by the above formulas (1) to (6), if calculated by the following formula, the x component (and y of the actual moving distance) for each half cycle of the rotation of the ball 12 Component), the actual moving distance and direction on the two-dimensional plane can be known.
Δx = (dx / dx.max) × B × (π / 4) / C (9)
Δy = (dy / dy.max) × B × (π / 4) / C (10)

  (9) In the formula (10), dx and dy are values of Δx and Δy obtained by the formulas (1) to (4), respectively, and dx.max and dy. max is the maximum value of dx and dy obtained when writing in the x-axis and y-axis directions, B is the diameter of the ball 12, and C is the rotation rate of the ballpoint pen 10 (the ball when there is no slipping during writing). The ratio of the actual rotational speed to the rotational speed of 12).

  20 includes a new configuration of the ballpoint pen 10 shown in FIGS. 1 to 10 and / or the configuration (function) of the ballpoint pen 10 shown in FIGS. 11 to 19 as a basic configuration (function). A schematic configuration of a ballpoint pen with diagnostic function 10A according to an embodiment of the present invention is shown. The illustrated ballpoint pen 10A with a diagnostic function includes four magnetic sensors 118, 120, 122, and 124 (therefore, the configuration of the ballpoint pen 10 shown in FIGS. 11 to 19 as a basic configuration, but includes two magnetic sensors 16 and 18). 1 to 10 may be provided as a basic configuration) and a ball behavior detecting unit 305 having a writing pressure sensor 126 for detecting writing pressure during writing. The ballpoint pen with diagnostic function 10 </ b> A includes a data processing unit 300 that calculates various writing information based on detection outputs of the magnetic sensors 118, 120, 122, and 124 and the writing pressure sensor 126, and writing information from the data processing unit 300. And a display unit 315 for displaying a diagnosis / determination result (diagnosis / determination information by the diagnosis / determination unit 310). Similarly to the configuration shown in FIG. 8, the data processing unit 300 includes an AD converter 48 and a moving average processing unit 50 ′ that performs the moving average processing performed by the counting unit 50, and relates to FIGS. 11 to 19. An x-component / y-component calculation unit 125 ′ that performs at least the same processing as that of the data processing unit 125 described above is included. The display unit 315 includes the LCD display 24 and / or the LED 224 shown in FIG. The LED 224 can know the determination result from a previously prepared sheet (determination result sheet) or a book (a book on which a diagnosis / determination method is described) depending on how many colors are lit. In the case of the LCD display 24, for example, according to the number to be displayed, the result is judged from a prepared sheet (determination result sheet) or a book (a book describing how to diagnose and judge). Also good.

  The writing information calculated by the data processing unit 300 includes writing timing, writing pressure, writing character angle, writing speed, etc. in addition to the writing distance and writing direction as described above with reference to FIGS. be able to.

  The diagnosis / determination unit 310 acquires writing information from the data processing unit 300, and based on the information, the writing method of the written character (such as splashing, stopping, peeling, writing character angle, etc.) and the size of the character , Etc. (by acquiring characteristic data that occurs during writing such as splashing, stopping, etc.), diagnosing and judging the personality and psychology of the person who wrote (personality diagnosis), or as a sample Detecting the difference between the handwriting information and the characters written by the user to make a correct / incorrect handwriting, or making an authentication judgment (handwriting appraisal), for example, when managing personal personal computer passwords with a pen To do.

  As an example, the case of performing a personality diagnosis will be described. The diagnosis / determination unit 310 is based on writing information from the data processing unit 300, that is, by writing direction, writing timing, writing distance (and hence writing speed), and the like. It is possible to specify a stop and a splash part. It is apparent from the data in FIGS. 21 to 24 that such identification is possible. That is, as shown in FIG. 21 (a), there is no significant fluctuation in the writing speed with “stop”, but as shown in FIG. The writing speed tends to increase toward the final writing. In order to see the writing speed trend, the writing speed at every 20 ms interval (the time interval varies depending on the diameter of the ball 12 and the sampling frequency when the magnetic fluctuation is digitized) is calculated by a microcomputer and the speed change is derived. As shown in 22A shows the change in writing speed when “stop”, and FIG. 22B shows the change in writing speed when “Hara”. It is also beneficial to add handwritten character angle information as shown in FIGS. These pieces of information are data at the time of writing Hiragana “Yu”, but the writing information indicated by the solid line frame in FIG. 24 and the writing information indicated by the broken line frame in FIG. 24 tend to be different. By using elements such as writing distance and writing timing in addition to writing character angle and writing speed, you can specify the place where you want to determine a fixed character, stop, It is possible to determine a writing bag such as splash, and to associate it with personality determination.

  FIG. 25 shows a ballpoint pen system 500 with a diagnostic function according to another embodiment of the present invention. As shown in the figure, this ballpoint pen system 500 with a diagnostic function includes a ballpoint pen 10A ′ (not including the diagnosis / determination unit 310 in the present embodiment) including the ball behavior detection unit 305 and the data processing unit 300 described above. A personal computer (hereinafter referred to as a PC) 400 and / or a mobile phone 600. The ballpoint pen 10 </ b> A ′ also includes a USB driver 309 as an interface for outputting writing information to the PC 400 or the mobile phone 600 that is an external device. The PC 400 includes a code input unit 410 and the diagnosis / determination unit 310 described above. Of course, the diagnosis / determination unit 310 may be provided on the ballpoint pen 10 </ b> A ′ side to perform post-processing of data or other processing on the PC 400 side. In this case, it is preferable to use the advantage that the processing itself is completed on the side of the ballpoint pen, and the ballpoint pen itself is preferably operated in the same manner as an HID (human interface) mouse and keyboard. In this case, information transmitted by the USB driver 309 is diagnosis / determination information from the diagnosis / determination unit 310.

  FIG. 26 shows another configuration of the ballpoint pen system with a diagnostic function. The ballpoint pen system 500A with a diagnostic function includes the ballpoint pen 10A ″ (not including the diagnosis / determination unit 310 in the present embodiment) including the ball behavior detection unit 305 and the data processing unit 300, and the PC 400. The ballpoint pen 10A ″ further includes a communication control unit 550 for transmitting / receiving data including writing information to / from the PC 400, which is an external device, and a memory (storage unit) 590 for storing the writing information. . In this case, the communication control unit 550 includes a CPU 557 and a USB driver 559 as an interface. On the other hand, the PC 400 includes a data receiving unit 420, the diagnosis / determination unit 310 described above, and a display output unit 425. In such a configuration, the writing information is stored in the memory 590 for the ballpoint pen 10A ″ alone, and when the ballpoint pen 10A ″ is connected to the PC 400, the information in the memory 590 can be extracted from the PC 400 as necessary. The diagnosis / determination result is displayed on a display (not shown) as a display unit via the display output unit 425. Of course, the diagnosis / determination unit 310 may be provided on the ballpoint pen 10A ″ side, and post-processing of data or other processing may be performed on the PC 400 side. In this case, information transmitted by the USB driver 559 is diagnostic. The diagnosis / determination information from the determination unit 310. The diagnosis / determination information from the diagnosis / determination unit 310 is stored in the memory 590.

  FIG. 27 shows still another configuration of the ballpoint pen system with a diagnostic function. In the ballpoint pen system 500B with a diagnostic function, only data collection is performed on the ballpoint pen side, and all control such as noise processing and data processing is performed on the PC400 side. Specifically, the ball-point pen system 500B with a diagnostic function includes a ball-point pen 10B (in this embodiment) including the above-described ball behavior detection unit 305, a processing unit 300 ′ including an AD converter 48 and a UART 319, and an RS232C driver 349. , X component / y component calculation unit 125 ′ and diagnosis / determination unit 310 are not provided) and PC 400. The PC 400 includes a data acquisition unit 420, the above-described x component / y component calculation unit 125 ', the above-described diagnosis / determination unit 310, and a display output unit 425. The system 500B also includes a dedicated USB driver 710. According to such a configuration, there is an advantage that a large space can be taken on the side of the ballpoint pen 10B that performs only data collection, which is beneficial. Further, since all control is performed on the PC 400 side, the application range is expanded depending on software processing.

  As described above, according to the above configuration, writing information can be detected using the writing ball 12 and various diagnoses and determinations can be performed using the detected information. It is possible to provide a multifunctional ballpoint pen and a ballpoint pen system having a wide range of uses that can effectively use written information without loss.

FIG. 2 is a basic conceptual diagram of a ballpoint pen that includes two magnetic sensors and is mainly suitable for measuring a writing distance. It is a figure which shows the sensor output at the time of writing and a pen swing. It is a whole perspective view of the ball-point pen of FIG. FIG. 4 is a cross-sectional view taken along a plane perpendicular to the surface of the LCD display of FIG. 3. FIG. 4 is a cross-sectional view taken along a plane parallel to the surface of the LCD display of FIG. 3. It is an expanded sectional view of a tip part. It is sectional drawing which follows AA of FIG. It is a block diagram which shows the structure of the hardware of a data processing part. It is a flowchart of the process in a counting part. It is a graph which shows a rotation detection result. It is a basic conceptual diagram of a ballpoint pen that includes four magnetic sensors and is suitable mainly for measurement in the writing direction. It is a graph which shows the waveform of the output signal of each sensor at the time of writing in the x direction of FIG. It is a graph which shows the waveform of the output signal of each sensor at the time of writing in the -x direction of FIG. It is a graph which shows the waveform of the output signal of each sensor at the time of writing in the y direction of FIG. It is a graph which shows the waveform of the output signal of each sensor at the time of writing in the -y direction of FIG. It is a figure for demonstrating calculation of the data which shows the phase difference of the output signal of a sensor pair, and the phase relationship. It is a figure which shows four maximum and minimum patterns for detecting the phase difference of the output signal of a sensor pair, and the phase context. It is a flowchart which shows an example of (DELTA) x calculation processing in the data processing part of FIG. It is a flowchart which shows the other example of (DELTA) x arithmetic processing. It is a schematic block diagram of the ball-point pen with a diagnostic function which concerns on one Embodiment of this invention. It is a wave form diagram which proves that a stop and a splash part (harbour part) can be specified. It is a graph which shows the writing speed change at the time of "stop" and "Harai". It is a graph which shows handwritten character angle information. It is a graph which shows handwritten character angle information. 1 is a schematic configuration diagram of a ballpoint pen system with a diagnostic function according to an embodiment of the present invention. It is a schematic block diagram of the ball-point pen system with a diagnostic function which concerns on other embodiment of this invention. It is a schematic block diagram of the ball-point pen system with a diagnostic function which concerns on further another embodiment of this invention.

Explanation of symbols

10, 10A, 10A ′, 10 ″, 10B Ballpoint pen 12 Ball 14 Holder 16, 18, 118, 120, 122, 124 Magnetic sensor 300 Data processing unit 310 Diagnosis / determination unit 315 Display unit 500, 500A, 500B Ballpoint pen system 590 Memory (Memory part)

Claims (11)

A magnetized ball,
A holder for rotatably holding the ball;
A magnetic sensor disposed near the outside of the holder;
A data processing unit for calculating writing information based on the detection output of the magnetic sensor;
A diagnosis unit for diagnosing the character of the writer based on the writing information calculated by the data processing unit;
A ballpoint pen with a diagnostic function characterized by comprising:   The ballpoint pen with a diagnostic function according to claim 1, further comprising a display unit that displays a result of diagnosis by the diagnostic unit.   The ballpoint pen with a diagnostic function according to claim 1 or 2, further comprising an interface for outputting written information or the diagnostic result to an external device.   The ballpoint pen with a diagnostic function according to any one of claims 1 to 3, further comprising a storage unit that stores written information or the diagnosis result.   5. The ballpoint pen with a diagnostic function according to claim 1, wherein the diagnosis unit performs authentication determination using writing information of a writer who is registered in advance.   The ballpoint pen with a diagnostic function according to any one of claims 1 to 4, wherein the diagnosis unit performs correct / incorrect determination of a written character based on the writing information calculated by the data processing unit. .   The ballpoint pen with a diagnostic function according to any one of claims 1 to 6, wherein the data processing unit measures a writing direction, a writing distance, a writing character angle, and a writing timing.   The ballpoint pen with a diagnostic function according to claim 7, wherein the data processing unit extracts writing information of a specific portion of a fixed character using a writing distance, a writing character angle, and a writing timing. A magnetized ball, a holder that rotatably holds the ball, a magnetic sensor disposed near the outside of the holder, and a data processing unit that calculates writing information based on a detection output of the magnetic sensor; A ballpoint pen with
An information device equipped with a diagnostic unit for diagnosing the writer's personality based on written information;
A pen system comprising:
A pen system for transmitting the writing information from the ballpoint pen to the information device online or by wireless communication. A magnetized ball, a holder that rotatably holds the ball, a magnetic sensor disposed near the outside of the holder, and a process for converting the detection output of the magnetic sensor into a signal format corresponding to a communication format A ballpoint pen with a portion,
An information device comprising a data processing unit that calculates writing information based on the detection output of the magnetic sensor, and a diagnostic unit that diagnoses the character of the writer based on the writing information;
A pen system comprising:
A pen system that transmits the detection output of the magnetic sensor from the ballpoint pen to the information device online or by wireless communication.   The pen system according to claim 9 or 10, wherein the information device is a mobile phone or a personal computer.

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