JP2008242894A - Stylus pen and computer simulation device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To feedback the microfine inner force sense of the texture (stiffness, tenderness, flexibility) of an object displayed on a display picture with the structure of a stylus pen to an operator with a simple structure. <P>SOLUTION: A stylus pen is configured of a cylindrical main body case having an opening at one side; a pen top axis stored in the main body case, and arranged on the same axis, and formed with a flange section and a top end extended section extended to one side of the flange section; a spring engaged with the flange section of the pen top axis, and energized so that the top end extended section can be projected from the opening of the main body case; a slide cylinder whose one side is engaged with the spring, and whose other side is formed with a protruding section, and which is configured to slide in the main body case; an internal gear with a slide cam shaped like a cylinder, and formed with an internal gear on the cylindrical internal wall, and equipped with a slide cam face butted to the protruding section of the slide cylinder, and a motor whose external gear engaged with the internal gear is fixed to a rotary shaft. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stylus pen that can vary the indentation resistance force, and a computer simulation apparatus using the stylus pen.

  A stylus pen is used as one means of an input device of a computer simulation apparatus constituted by a computer system.

  Such a stylus pen is used for designating a relative position on the screen of the image processing apparatus or instructing selection of an icon or the like.

  Various techniques for using a stylus pen in such a computer system have been proposed. Among various proposals, Patent Documents 1 and 2 describe techniques in which an operator can confirm input by feeding back an input result to a stylus pen.

  The stylus pen described in Patent Documents 1 and 2 has a shape memory alloy spring connected to the pen tip, and is based on the output of the means for detecting the displacement of the stylus pen by the operation of the operator. It is a structure that gives a sense of force to the operator by deforming the shape memory alloy.

  Further, Patent Documents 1 and 2 disclose that a structure for giving a sense of force instead of a combination of the shape memory alloy spring and the heating means, a structure for giving displacement using a piezoelectric element, or a magnetic field attraction using a magnet and a yoke. The structure used is also proposed.

  However, the use of the stylus pen in Patent Documents 1 and 2 uses a tablet table that is physically independent of the display surface of the image processing apparatus, positions the pen tip of the stylus pen on the tablet table, The stylus pen is moved correspondingly, and the movement displacement of the corresponding stylus pen on the tablet table is reflected on the display screen.

  On the other hand, as an input method in an image processing apparatus, a technique is known that enables a point position input and a locus point movement input by touching a displayed image with a finger or an electronic pen using a display screen as a touch panel (for example, Patent Documents 3 and 4).

  Further, various three-dimensional image display techniques have been developed so as to give virtual reality to an object on a display screen (or also referred to as a character in the description of the present invention) in an image processing apparatus. Until now, however, development has been focused exclusively on increasing virtual reality from a visual perspective.

That is, when a three-dimensional image is displayed on a two-dimensional screen, development as a technique for transmitting the three-dimensional form of the displayed object to the operator as a force sense is not always sufficient. Such an invention exists. The invention disclosed in Patent Document 5 is a mechanism that uses a 6-axis link mechanism to give a force sense to the operator with respect to 6 degrees of freedom in position and orientation.
JP-A-7-31650 JP 2000-200140 A JP 2006-181286 A JP 7-44316 A JP 2000-148382 A

  With reference to Patent Documents 1-4 described above, there is disclosed a technique for pointing and moving an object on a screen by using a stylus pen. However, force feedback of the texture (stiffness, softness, etc.) of the object is disclosed. The technology is not disclosed.

  Patent Document 5 is a mechanism that gives the operator a sense of force with respect to the position and orientation with six degrees of freedom, but its structure is complex and does not disclose any relationship with the object displayed on the screen.

  In addition, in the above prior art, it is difficult to improve responsiveness with a configuration using a shape memory alloy when giving a force sense, and it is difficult to increase the amount of deformation with a piezoelectric element or magnetic field attraction. It is.

  In view of such prior art, the object of the present invention is to provide a structure of a stylus pen that can feed back a variety of force sensations to an operator with a simple structure, and a texture of an object displayed on the display screen using the structure ( The object is to provide a computer simulation device that makes sense of hardness, softness, and flexibility.

  A stylus pen according to the present invention that solves the above-mentioned problems is a cylindrical main body case having an opening on one side, and is accommodated in the main body case, and is arranged on the same axis. A pen tip shaft having a tip extension extending to one side; a spring that engages with a flange portion of the pen tip shaft and biases the tip extension to protrude from the opening of the body case; and the spring and one end The slide cylinder, which is engaged with the other end and has a protrusion on the other end, is slidable within the main body case, and has a cylindrical shape, and an internal gear is formed on the cylindrical inner wall. An internal gear with a slide cam having a slide cam surface that comes into contact with the protruding portion of the motor, and an external gear that engages with the internal gear are provided with a motor fixed to the rotation shaft.

  In the above, it further has a switch part fixed in the main body case, the pen nib shaft has a projecting extension part extending in the opposite side to the tip extension part in the collar part, , A rectangular hole may be formed, and the switch may be configured to be positioned within the rectangular hole.

  With the above configuration, a stylus pen that can feed back a fine force sense to an operator with a simple structure is provided.

  Further, the pen tip shaft is formed of a conductor, and an electric resistance layer is formed on the inner side of the main body case so as to be able to contact a collar portion of the pen tip shaft. Corresponding to the contact position between the electrical resistor layer and the flange based on the amount of protrusion from the opening of the main body case, the electrical resistance value at the pen tip shaft and the electrical resistor layer is determined. It may be configured.

  With this configuration, the computer simulation apparatus can determine the amount of stylus pen pressing by the change in the resistance value, and can control the feedback force.

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

  FIG. 1 is an exploded perspective view of a main part showing the structure of a stylus pen according to the present invention.

  It has a motor 7 in which a pen tip shaft 1, a spring 2, a slide cylinder 3, a switch 4, an internal gear 5 with a slide cam, and an external gear 6 are fixed on the same axis.

  FIG. 2 is a view showing a cross-sectional structure of a stylus pen assembled by coaxially arranging the components of FIG. 1 in a cylindrical main body case 10.

  The external gear 6 fixed to the rotating shaft of the motor 7 is positioned so as to engage with the internal gear 5a of the internal gear 5 with a slide cam.

  Further, the slide cam surface 5 b of the internal gear 5 with the slide cam is brought into contact with the protrusion 3 a of the slide cylinder 3.

  The motor 7 is fixed inside the main body case 10, and the slide cylinder 3 is slidable within the main body case 10. Further, the slide cylinder 3 is provided with a key 3 c, and rotation in the same direction as the internal gear 5 is restricted by a key groove 10 a provided inside the main body case 10. The switch 4 is positioned in a rectangular hole 3 b provided on the side wall of the slide cylinder 3.

  Accordingly, the slide cam surface 5b is displaced by the shaft rotation of the motor 7, and the projecting portion 3a of the slide cylinder 3 is in contact with the slide cam surface 5b, so that the slide cylinder 3 moves in the axial direction. At this time, since the switch 4 is fixed in the rectangular hole 3b of the slide cylinder 3, the position of the switch 4 in the rectangular hole 3b of the slide cylinder 3 relatively moves as the slide cylinder 3 slides. .

  Further, the end of the slide cylinder 3 opposite to the protrusion 3 a is engaged with one end of the spring 2. The other end side of the spring 2 is engaged with the flange portion 1 a of the pen tip shaft 1.

  The pen nib 1 has a tip extension 1b extending to the outside of the main body case 10 on one side of the collar 1a and a projecting extension 1c extending to the other side of the collar 1a.

  In the normal state, the tip extension portion 1b of the pen tip shaft 1 is the most extended state to the outside of the main body case 10 by the spring force of the spring 2 applied to the collar portion 1a.

  When the operator designates the object displayed on the display screen and pushes the pen tip shaft 1 into the inside of the main body case 10, the tip of the butting extension portion 1c of the pen tip shaft 1 is moved while the spring 2 is contracted by the collar portion 1a. The switch 4 is reached and the switch 4 is turned on. As a result, a signal is output from the switch 4.

  The image processing apparatus can identify what the object on the screen is instructed by the stylus pen according to the program, and outputs a feedback signal corresponding to the material property attached to the identified object. Based on this feedback signal, drive power is applied to the motor 6.

  The motor driving means that processes the feedback signal and applies driving power to the motor 6 may be on the stylus pen side, the image processing apparatus 101 side, or an independent device may be prepared. .

  Then, the motor 6 is rotated based on the drive power described above, and the slide cam surface 5b of the internal gear 5 with slide cam is displaced by the engagement between the external gear 6 and the internal gear 5a of the internal gear 5 with slide cam.

  Therefore, the protrusion 3 a of the slide cylinder 3 is pushed in the direction of the pen tip shaft 1 (leftward in FIG. 2), and applies a compressive force to the spring 2. Or, conversely, the protruding portion 3a of the slide cylinder 3 is moved in the direction of loosening the compressive force of the spring 2 (left direction in FIG. 2).

  As a result, the changing compression force of the spring 2 can be fed back to the operator who wants to push the pen tip shaft 1 as a force sense.

  As described above, the stylus pen according to the present invention is characterized in that the compression force of the spring 2 is changed by displacing the slide cam surface 5 b by the rotation of the motor 7. The rotation of the motor 7 can be easily program-controlled. By increasing the length of the slide cam surface 5b, the dynamic range of the change in compression force can be increased.

  Thus, the present invention can provide a stylus pen suitable for program control with a simple configuration.

  FIG. 3 is another structural example of the stylus pen according to the present invention.

  The difference between the structure of the stylus pen shown in FIG. 3 and the structure shown in FIG. 2 is that the switch 4 is not provided. Furthermore, the material of the pen tip shaft 1 needs to be a conductor such as metal in the structure of FIG. A resistor 8 is formed on the inner wall of the main body case 10 so that the collar portion 1a of the pen tip shaft 1 can contact and slide. Further, the body case 10 is provided with an electrode terminal 8 a that is in contact with the side surface of the body of the pen tip shaft 1. A connection terminal 8 b is connected to the resistor 8.

  Therefore, in the structure of FIG. 3, if an electrode lead is connected to the electrode terminal 8a and the electrode terminal 8b, the resistance value between the electrode terminal 8a and the electrode terminal 8b changes depending on the amount of pressing of the pen tip shaft 1.

  Therefore, in the image processing apparatus to which the pen stylus is connected, by detecting the above-described resistance value, a change in the resistance value between the electrode terminal 8a and the electrode terminal 8b is detected. A feedback control voltage can be generated to give the operator feedback sensation as described with reference to FIGS.

  As described above, in the case of using the stylus according to the present invention, various control modes are possible. As an example, an example of a computer simulation apparatus using a stylus pen according to the present invention will be described below.

  FIG. 4 is a conceptual configuration diagram of a computer simulation apparatus 100 using the stylus pen according to the present invention.

  The computer simulation apparatus 100 uses an image processing apparatus 101, a display apparatus 102, and a stylus pen 200.

  A touch panel 103 is formed on the display device 102 corresponding to the display screen. A position on the display screen is instructed by the touch panel 103 with the stylus pen 200, and corresponding coordinate data is input to the image processing apparatus 101.

  FIG. 4 also shows an example using a tablet table (tablet) 105 as another aspect. By using the tablet 105 connected to the image processing apparatus 101 as an input device and pointing the coordinate position of the tablet 105 relative to the display screen of the display apparatus 102 with the stylus pen 200, the corresponding coordinate data is sent to the image processing apparatus 101. Entered.

  In the example shown in FIG. 4, the stylus pen 200 and the image processing apparatus 101 are connected wirelessly, but it goes without saying that they may be connected by wire.

  FIG. 5 is a block diagram illustrating a configuration example of the image processing apparatus 101. Here, an example in which the image processing apparatus 101 is used as a game apparatus will be described.

  Each functional unit exchanges data through the bus 110.

  In accordance with a game program stored in an external memory or a ROM 112 represented as an internal memory, the main CPU 111 controls the image processing apparatus, that is, the entire game apparatus.

  The rendering processor 114 performs coordinate conversion on the object data stored in the ROM 112 in accordance with the game program, thereby forming object data that is controlled to move in the virtual three-dimensional space.

  Further, the data of the object having the virtual three-dimensional coordinates to be moved is perspective-transformed into two-dimensional coordinates to be displayed on the display device 102 by the rendering processor 114.

  At this time, the rendering processor 114 reads the texture data from the texture memory 115 and pastes the read texture on the object data coordinate-converted to the two-dimensional coordinates in accordance with the game program, and draws it in the video memory 116 as image data. To do.

  The image data drawn in the video memory 116 is read at a predetermined cycle and sent to the display device 102, whereby a game image including an object whose movement is controlled according to the game program is displayed on the display device 102.

  The RAM 113 temporarily stores data in the process of executing the game program.

  In the basic operation of the game apparatus, image processing using the stylus pen 200 of the present invention will be described below.

  The stylus pen 200 of the present invention is wirelessly connected to the image processing apparatus 101 by the wireless transceiver 117 or is connected to the image processing apparatus 101 by wire through the I / O interface 118.

  FIG. 6 is a flowchart illustrating an example of input using the stylus pen 200 of the present invention and an image processing procedure corresponding to the input.

  When the operator places the stylus pen 200 on a desired position on the display screen of the display device 102 (here, it is assumed that an object that the operator wants to move or deform is displayed), the touch panel 103 is displayed on the touch panel 103. The coordinates on the screen designated by 200 are read and input to the image processing apparatus 101 through the I / O interface 118.

  Therefore, based on the read data sent from the touch panel 103, the main CPU 111 as the control means of the image processing apparatus 101 determines that the stylus pen 200 has touched the screen (step S1, YES), and the instruction of the stylus pen 200. The detected coordinates are detected (step S2).

  Next, the main CPU 111 refers to the RAM 113 that stores saved data during game execution, and determines whether or not there is an object display at the coordinates touched by the stylus pen 200, that is, the coordinates detected in step S2. (Step S3). If no object is displayed, the process returns to step S1. If an object is displayed (YES in step S3), the property (characteristic) information of the displayed object is obtained from the RAM 113.

  Therefore, the main CPU 111 generates a feedback signal corresponding to the obtained property (characteristic) information of the object.

  If a table indicating the correspondence between the object property (characteristic) information and the feedback signal is stored in advance in the RAM 113 as part of the game data, the main CPU 111 refers to the RAM 113 and easily generates the feedback signal. it can.

  The feedback signal is sent through the I / O interface 118 to the control unit built in the stylus pen 200 shown in FIG. That is, FIG. 7 shows a block diagram of a configuration example of the control unit of the stylus pen 200. The switch 4 is connected to the microcontroller 202, and the ON / OFF state of the switch 4 is recognized by the microcontroller. As described above, the wireless function unit 201 transmits the switch 4 to the wireless transceiver 117 of the image processing apparatus 101. It is done.

  The wireless function unit 201 receives the feedback signal transmitted from the image processing apparatus 101 and transfers it to the microcontroller 202.

  The microcontroller 202 converts it into a drive signal having a size and pattern corresponding to the feedback signal and supplies it to the motor 7. Therefore, since the motor 7 is rotated in accordance with the drive signal having the magnitude and pattern corresponding to the feedback signal, the corresponding force sense can be transmitted to the operator holding the stylus pen 200.

  Returning to FIG. 6, the motor 7 is operated in response to the feedback signal, a resistance force corresponding to the characteristic of the object is given to the pen tip shaft 1, and a force sense corresponding to the operator is given as a reflection of this resistance force. Yes (step S4).

  For example, in the object image example shown in FIG. 8, the object is a frog image, and as described above, the main CPU 111 determines that the image object located at the coordinates indicated by the stylus pen 200 is a frog. Is determined. Then, the property (characteristic) information of the object corresponding to the frog is obtained from the RAM 113.

  A feedback signal based on property (characteristic) information of the object corresponding to the obtained frog is generated.

  Then, based on this feedback signal, the motor 7 is driven, and the simulated frog feel is given to the operator as a force sense.

FIG. 9 is another example image, for example, an image that simulates excavation of a ruin, and is an image when a simulated image of the stylus pen 200 is assumed to be an excavation tool 200A.
That is, the process of gradually removing the mud of the ruins 300 covering the ruins 301 using the ruins excavation tool 200A when the ruins 301 are buried in the ruins 300 (moving the ruins excavation tool 200A in the direction of the arrow) The situation where the remains 301 appear is shown.

  In response to this, the operator moves the stylus pen 200 in the direction of the arrow so as to gradually remove the mud.

  At this time, the coordinates indicated by the stylus pen 200 change continuously. Therefore, the main CPU 111 can recognize a continuous change in coordinates indicated by the stylus pen 200, and generates an image in which the image display position of the simulated stylus pen 200A is changed by the rendering processor 114 according to the program.

  At the same time, the object on the display screen instructed by the stylus pen 200 also changes as the coordinates instructed by the stylus pen 200 continuously change. That is, the object of the coordinate pointed to by the stylus pen 200 is mud before the ruins 301 appear, and when the mud is removed and the ruin point 301 appears, the object of the coordinates pointed to by the stylus pen 200 is farther than the mud. It is a very hard remains 301. Furthermore, when the stylus pen 200 is moved to specify the shape of the ruins 301, the coordinate position is instructed across the boundary between the surface soil of the ruins 301 and the ruins 300.

  In such a case, different objects correspond to the coordinate position indicated by the stylus pen 200.

  Accordingly, as described above, the main CPU 111 generates a feedback signal according to the characteristics of the object corresponding to the coordinate position indicated by the stylus pen 200, and the motor of the stylus pen 200 is driven based on the feedback signal.

  Thus, the operator can sense the simulated mud feel, the feel of the ruins 301, and the feel of the surface soil of the ruins.

  Further, returning to FIG. 6, when the pushing operation is not performed and the coordinates indicated by the stylus pen 200 change (step S5, NO), the process returns to step S1 (FIG. 6, RETURN) and the above processing is repeated.

  When the depression of the pen tip axis 1 of the stylus pen 200 is recognized (step S5, YES), the main CPU 111 updates the property (characteristic) information of the object of the image located at the coordinates indicated by the stylus pen 200. Then, the data is recorded in the RAM 113 (step S6), and the rendering processor 114 is controlled according to the program to generate a moving or deformed image of the object (step S7). The rendering processor 114 is controlled according to a program to generate a moving or deformed image of the object.

  Here, when the stylus pen 200 is recognized to be pushed in by the pen tip shaft 1, the stylus pen 200 configured as shown in FIGS. 1 and 2 is used when the switch 4 is turned on.

  Or when using the stylus pen 200 of the structure of FIG. 3, it determines by the resistance value determined by the contact position of the resistor 8 and the collar part 1a.

  Further, FIG. 10 is an application example when the stylus pen 200 having the configuration of FIG. 3 is used. That is, in this example, the form of the display object is modified and displayed in accordance with the amount of pressing of the stylus pen 200.

  In FIG. 10, an object 310 imagines a sponge having a rectangular shape.

  In FIG. 10, the stylus pen 200 is in a state in which the coordinate position corresponding to the side 311 of the image of the object 3 10 that is a sponge is specified, and the image of the stylus pen 200 of the virtual image is positioned and displayed at the corresponding position. Yes. Further, the sponge 310 has a small repulsive force, and the object 310, which is a sponge displayed on the screen, is easily expressed by an indentation in the peripheral portion 311 to which the stylus pen 200 is applied.

  Further, when the pen shaft tip 1 of the stylus pen 200 is pushed into the object 310, the image processing apparatus 101 determines the push amount of the pen tip shaft 1 from the change amount of the resistance value and converts it into a corresponding push pressure. Then, a deformed image of the object 310 corresponding to the obtained pressing pressure is generated and displayed.

  At this time, since the image processing apparatus 101 sends a feedback signal to the stylus pen 200 in synchronization with the deformation of the object 310, the operator can obtain a sense of force when the object 310 is deformed.

  Furthermore, if the pushing state is continued, the object 310 displays an image that moves in the direction of the arrow.

  FIG. 11 is an application example when the stylus pen 200 having the configuration of FIG. 3 is used, as in FIG. 10, and is an example of a rectangular body formed of clay as the object 310.

  Clay is more repulsive than sponge and hard to be pushed in. Further, when the position of the stylus pen 200 is moved while a certain amount of pressing is applied, the repulsive force according to the undulation changes as shown in FIG. The repulsive force gives the operator a sense of force as described above when the motor 7 is driven by a feedback signal from the image processing apparatus 101.

  Next, FIG. 12A to FIG. 12C are diagrams showing further application examples of the present invention, and assume an image in which a ball falls on a seesaw as shown in FIG. 12A.

  When another object collides with an object on the screen at a low speed, a light repulsive force is generated. When an object collides at a high speed, a strong repulsive force is generated. Furthermore, by considering the repulsive force proportional to the mass defined for the object on the screen, the difference in the mass of the object on the screen is artificially sensed.

  In FIG. 12A, the repulsive force of the nib axis 1 becomes a repulsive force corresponding to the speed at which the depth of the touched portion changes.

  In FIG. 12B, when the repulsive force is weak, a feedback signal is given so that the pen tip shaft 1 easily enters the stylus pen body, and the motor 7 is driven.

  On the other hand, in the example shown in FIG. 12C, the repulsive force is strong and the pen tip shaft 1 is not easily moved. In order to generate such a state, it is necessary that a feedback signal that gives a strong drive to the motor 7 is supplied from the image processing apparatus 101.

  As shown in the above-described embodiments, the present invention provides a stylus pen that can feed back a variety of force sensations to an operator with a simple structure.

It is a disassembled perspective view of the principal part which shows the structure of the stylus pen according to this invention. It is a figure which shows the cross-section of the stylus pen assembled by arrange | positioning each component of FIG. 1 coaxially in a cylindrical main body case. It is another structural example of the stylus pen according to the present invention. It is a conceptual block diagram of the computer simulation apparatus using the stylus pen according to this invention. 1 is a block diagram illustrating a configuration example of an image processing apparatus. It is a flowchart explaining an example using the stylus pen of this invention, and an image processing procedure corresponding to it. It is a block diagram of a configuration example of a control unit of the stylus pen. It is a figure which shows the example of an object image. It is a figure which shows another Example image. It is an application example in the case of using the stylus pen of the configuration of FIG. This is an application example when the stylus pen having the configuration of FIG. 3 is used, and is an example of a rectangular body formed of clay as an object. It is a figure showing the image where a ball falls on a seesaw. It is a figure explaining the case where repulsive force is weak. It is a figure explaining the case where repulsive force is strong.

Explanation of symbols

10 Main body case of stylus pen 1 Pen tip shaft 2 Spring 3 Slide cylinder 4 Switch,
5 Internal gear with slide cam 6 External gear 7 Motor 100 Computer simulation device 101 Image processing device 102 Display device 103 Touch panel 104 Keyboard 105 Tablet 200 Stylus pen 110 System bus 111 Main CPU
112 ROM
113 RAM
114 Rendering Processor 115 Texture Memory 116 VRAM

Claims (6)

A cylindrical body case having an opening on one side;
Housed in the main body case and arranged coaxially,
A pen nib having a hook and a tip extension extending to one side of the hook;
A spring that engages with a collar portion of the nib shaft and biases the extended end portion so as to protrude from the opening of the main body case;
A slide cylinder that engages one end of the spring and has a protrusion on the other end, and is slidable within the body case;
An internal gear with a slide cam that has a cylindrical shape, an internal gear is formed on the cylindrical inner wall, and further has a slide cam surface that comes into contact with a protrusion of the slide cylinder;
A motor in which an external gear engaged with the internal gear is fixed to a rotary shaft;
A stylus pen, characterized in that it has a structure. In claim 1,
Furthermore, it has a switch part fixed in the main body case,
The nib shaft has a butting extension extending on the side opposite to the tip extension on the collar,
The slide cylinder is formed with a rectangular hole, and the switch part is positioned in the rectangular hole.
This is a stylus pen. In claim 1,
The nib axis is formed of a conductor,
An electrical resistance layer is formed on the inner side of the main body case so as to be in contact with a collar portion of the pen nib shaft, and the electrical resistance based on a protruding amount of the tip end extension of the nib shaft from the opening of the main body case Corresponding to the contact position between the body layer and the buttocks, an electrical resistance value in the pen tip shaft and the electrical resistor layer is determined.
A stylus pen configured as described above. A computer simulation apparatus comprising: an image display means; an image data generation means for generating image data displayed on the image display means; and a stylus pen capable of indicating the position of an object displayed on the image display means on the screen. There,
The stylus pen is
A cylindrical body case having an opening on one side;
Housed in the main body case and arranged coaxially,
A pen nib having a hook and a tip extension extending to one side of the hook;
A spring that engages with a collar portion of the nib shaft and biases the extended end portion so as to protrude from the opening of the main body case;
A slide cylinder that engages one end of the spring and has a protrusion on the other end, and is slidable within the body case;
An internal gear with a slide cam that has a cylindrical shape, an internal gear is formed on the cylindrical inner wall, and further has a slide cam surface that abuts against a protrusion of the slide cylinder;
A motor in which an external gear engaged with the internal gear is fixed to a rotary shaft;
Configured with
Further, the computer simulation device includes a coordinate input unit that inputs a coordinate position on the display screen, which is positioned by a tip extension of a pen tip axis of the stylus pen, to the image data generation unit;
The computer simulation device has force feedback signal generation means,
The image data generation means reads out the texture data defined for the object displayed at the coordinate position out of the data stored in the storage means based on the coordinate position input by the coordinate input means,
The haptic feedback signal generating means generates a haptic feedback signal corresponding to the texture data defined for the object read by the image data generating means,
In the stylus pen, driving power corresponding to the force feedback signal fed back from the force feedback signal generation means is supplied to the motor.
A computer simulation apparatus configured as described above. In claim 4,
The image data generation means generates stylus pen image data of a virtual three-dimensional image corresponding to the stylus pen, and the stylus pen image data together with image data of an object displayed on a screen displayed by the display means. To the display means, and the display means displays the stylus pen image at the display coordinate position of the object.
A computer simulation apparatus configured as described above. In claim 4,
The image data generation means corresponds to the amount by which the tip extension of the pen tip shaft of the stylus pen is pushed into the opening of the main body case, and the image data generation means is configured to deform the object based on the texture data defined for the object. Generate deformed image data,
A computer simulation apparatus configured as described above.

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