JP2012146011A - Electronic pen, computer device, input system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input system which can properly detect both input by an electronic pen and input by a touch panel, and an electronic pen, a computer device, and a program used for the input system.SOLUTION: An electronic pen includes a display laminating a touch panel and a coded pattern layer with a formed coded pattern readable by the electronic pen, and is used together with a computer device allowing both input by the touch panel and input by the electronic pen. The electronic pen includes limiting signal processing means for transmitting a signal to limit an input function by the touch panel to the computer device.

Description

  The present invention relates to a technique using a coding pattern readable by an electronic pen.

  In recent years, electronic pens that digitize written information have been developed, and “Anot pen” developed by Swedish company Anoto is known as a representative one. Anotopen is used with dedicated paper on which a predetermined dot pattern is printed. In addition to the usual ink cartridge for writing characters, etc., the anotopen has a small camera for capturing the dot pattern printed on the dedicated paper and the position coordinates on the dedicated paper from the captured dot pattern. A processor for calculating and a data communication unit for transmitting the calculated position coordinates and the like to an external device are mounted. When the user writes characters on the special paper with an anotopen or puts a check mark on the image designed on the special paper, the small camera captures the dot pattern printed on the special paper as the pen moves. The entry information such as characters and images written by the user is recognized from the continuous position coordinates calculated by the processor. Then, this entry information is transmitted from the Anotopen by the data communication unit to a nearby terminal device such as a personal computer or a mobile phone (for example, see Patent Document 1).

  Patent Documents 2 and 3 disclose a system in which a dot pattern is stacked on an optical touch panel, and input using an electronic pen and touch panel input using a finger are possible. Furthermore, Patent Document 4 discloses an electronic pen provided with a proximity sensor. Non-Patent Document 1 has a configuration in which a liquid crystal is inserted and an electromagnetic induction type tablet is arranged at the bottom and a resistive film type touch panel is arranged at the top, allowing both input with an electronic pen and input with a finger. A touch panel is disclosed.

Japanese translation of PCT publication No. 2003-511761 US Patent Application Publication No. 2010/1962 US Patent Application Publication No. 2010/1963 Special table 2009-543181 Kenji Koshiishi et al., “Touch Panel”, first edition, Industrial Research Co., Ltd., March 15, 2010, P36-37, 50-63, 78-80

  In a display device in which touch panels are stacked and input with an electronic pen and touch panel input with a finger are possible, the touch panel is incorrect due to the pen tip of the electronic pen coming into contact with the display during input with the electronic pen. May detect input. Therefore, the main object of the present invention is to provide an input system that can appropriately detect both an input with an electronic pen and an input with a touch panel, and an electronic pen, a computer device, and a program used in the input system. To do.

  An electronic pen according to the present invention includes a display in which a touch panel and a coding pattern layer on which a coding pattern that can be read by the electronic pen is formed, and input by the touch panel and input by the electronic pen are provided. An electronic pen used together with a computer device capable of including a restriction signal processing means for transmitting a signal for restricting an input function of the touch panel to the computer device.

  With this configuration, the electronic pen includes a restriction signal processing unit that transmits a signal for restricting an input function by the touch panel to a computer device that can input by the touch panel and input by the electronic pen, and restricts the input function by the touch panel. It is possible. Therefore, according to this configuration, the electronic pen can restrict the input function of the touch panel and prevent erroneous input of the touch panel.

  In one aspect of the electronic pen, the restriction signal processing means includes a switch operated by a user, and a signal for restricting an input function by the touch panel when detecting that the switch is operated. Send. Thereby, the user can restrict | limit the input function of a touch panel at arbitrary timings, and can prevent the erroneous input of a touch panel.

  In another aspect of the electronic pen, the restriction signal processing unit has a sensor that detects gripping of the user in the gripping portion, and when the gripping of the user is detected by the sensor, the limit signal processing unit uses the touch panel. Send a signal to limit the input function. Thereby, when the input with the electronic pen is performed, the input function of the touch panel is automatically limited, so that erroneous input to the touch panel during the input with the electronic pen can be suppressed.

  In another aspect of the electronic pen, the restriction signal processing means may be configured such that the pen tip portion of the electronic pen is close to the coding pattern in a state where no pressure is applied to the pen tip portion of the electronic pen. When the digitized pattern is recognized, a signal for limiting the input function by the touch panel is transmitted. Also according to this aspect, when the input with the electronic pen is performed, the input function of the touch panel is automatically limited, so that erroneous input to the touch panel during the input with the electronic pen can be suppressed.

  In another aspect of the electronic pen, the limit signal processing unit includes a proximity sensor that detects that a pen tip portion of the electronic pen is close to the display, and the proximity sensor is close to the display. When this is detected, a signal for limiting the input function by the touch panel is transmitted. Also according to this aspect, when the input with the electronic pen is performed, the input function of the touch panel is automatically limited, so that erroneous input to the touch panel during the input with the electronic pen can be suppressed.

  A computer device according to the present invention is a display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed, and an input function of the touch panel from the electronic pen are limited. And a processing means for restricting an input function by the touch panel when receiving a signal.

  With this configuration, the computer apparatus has a display in which a touch panel and a coding pattern layer in which a coding pattern that can be read by an electronic pen is formed are stacked, and the input function from the electronic pen to the touch panel is limited. When the signal is received, the input function by the touch panel is limited. As described above, the computer device can restrict the input function using the touch panel, thereby suppressing erroneous input using the touch panel.

  In one aspect of the computer apparatus, when the processing means receives a signal for releasing the input function restriction by the touch panel from the electronic pen, the processing means releases the input function restriction by the touch panel. Thereby, the computer apparatus can switch the setting and cancellation | release of the input function restriction | limiting by a touch panel suitably.

  In another aspect of the computer apparatus, when the processing unit no longer receives information about the coding pattern from the electronic pen, the processing unit cancels the input function restriction by the touch panel. Also by this, the computer apparatus can switch the setting and cancellation | release of the input function restriction | limiting by a touch panel suitably.

  In another aspect of the computer apparatus, the processing means limits processing of input to the touch panel within a predetermined range from the entry position by the electronic pen. In this way, by limiting the touch panel input to a predetermined range from the entry position, the computer device can cause erroneous input on the touch panel due to the hand touching the electronic pen during input with the electronic pen coming into contact with the display. For example, the input to the touch panel can be effectively processed in a range where there is no risk of erroneous input to the touch panel.

  An electronic pen input system according to the present invention includes a touch panel, a display in which a coding pattern layer in which a coding pattern readable by the electronic pen is formed, input by the touch panel, input by the electronic pen, The electronic pen includes a restriction signal processing means for transmitting a signal for restricting an input function of the touch panel to the computer apparatus, and the computer apparatus is connected to the electronic pen from the electronic pen. When a signal for limiting the input function by the touch panel is received, processing means for limiting the input function by the touch panel is provided.

  With this configuration, the electronic pen input system includes a computer device including a display in which a touch panel and a coded pattern layer on which a coded pattern that can be read by the electronic pen is formed are stacked. And if a computer apparatus receives the signal for restrict | limiting the input function by a touchscreen from an electronic pen, it will restrict | limit the input function by a touchscreen. By restricting the input function using the touch panel in this way, erroneous detection of touch panel input can be prevented when the user performs input using the electronic pen.

  In another aspect of the electronic pen input system according to the present invention, a touch panel on which a coded pattern layer on which a coded pattern that can be read with an electronic pen is formed can be communicated with the touch panel, and input by the touch panel. And a computer device capable of input by the electronic pen, and a projector that projects a display screen based on an image signal transmitted from the computer device onto the touch panel, the electronic pen to the computer device, When the computer device receives a signal for restricting the input function by the touch panel from the electronic pen, the computer device includes an input function by the touch panel. The restriction signal processing unit transmits a signal for restricting the input function by the touch panel. And a processing means for restricting.

  With this configuration, the electronic pen input system has a computer device that transmits an image signal to a projector in order to project a display screen onto a touch panel on which a coded pattern layer is laminated. And an electronic pen transmits the signal for restrict | limiting the input function by a touchscreen to a computer apparatus, When a computer apparatus receives the said signal from an electronic pen, an input function by a touchscreen will be restrict | limited. Therefore, the electronic pen input system can restrict the input function of the touch panel and prevent erroneous input of the touch panel.

  In one aspect of the electronic pen input system, the limit signal processing means of the electronic pen may be configured such that the pen tip is close to a coded pattern regardless of whether the electronic pen detects pressure on the pen tip. When the coded pattern is recognized, a signal for limiting the input function by the touch panel is transmitted.

  With this configuration, the electronic pen of the electronic pen input system allows the input function by the touch panel when the pen tip is close to the coded pattern and recognizes the coded pattern, regardless of whether or not the pressure on the pen tip is detected. A signal for limiting the transmission is transmitted. When the computer device receives the signal from the electronic pen, the computer device restricts an input function by the touch panel. In this way, when the user performs input with the electronic pen, the touch panel can be operated before the pen tip of the electronic pen contacts the display or before the side of the hand holding the electronic pen contacts the display. The input function can be restricted. Therefore, the electronic pen input system can prevent erroneous detection of touch panel input accompanying electronic pen input.

  In another aspect of the electronic pen input system, when the processing unit of the computer apparatus receives a signal for releasing the input function restriction by the touch panel from the electronic pen, the input function restriction by the touch panel is released. To do. Thereby, the computer apparatus can switch the setting and cancellation | release of the input function restriction | limiting by a touch panel suitably.

  In another aspect of the electronic pen input system, when the processing unit of the computer apparatus no longer receives information on the coding pattern from the electronic pen, the input function restriction by the touch panel is canceled. Also by this, the computer apparatus can switch the setting and cancellation | release of the input function restriction | limiting by a touch panel suitably.

  In another aspect of the electronic pen input system, the processing means of the computer device restricts input processing to the touch panel within a predetermined range from an entry position by the electronic pen. In this way, by restricting the input function by the touch panel only within a predetermined range from the entry position, the computer device can correct the error of the touch panel caused by the hand holding the electronic pen during input by the electronic pen coming into contact with the display. A range where there is no possibility of erroneous input to the touch panel while suppressing input or the like can be processed as input to an effective touch panel.

  The program according to the present invention includes a display in which a touch panel and a coding pattern layer on which a coding pattern that can be read by an electronic pen is formed, and can be input by the touch panel and input by the electronic pen. A program that is mounted on and executed by an electronic pen that is used together with a computer device, and causes the electronic pen to function as restriction signal processing means for transmitting a signal for restricting an input function of the touch panel to the computer device.

  In one aspect of the program, the restriction signal processing unit recognizes the coding pattern when the electronic pen is close to the coding pattern regardless of whether or not the pressure is detected on the pen tip. When this happens, a signal for limiting the input function of the touch panel is transmitted.

  In another aspect of the program according to the present invention, the program is installed and executed in a computer device including a display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed are stacked. When the signal for restricting the input function by the touch panel is received from the electronic pen, the computer device is caused to function as processing means for restricting the input function by the touch panel.

  In yet another aspect of the program according to the present invention, a touch panel on which a coding pattern layer in which a coding pattern that can be read with an electronic pen is formed, and communication with the touch panel are possible. A computer device capable of inputting with the electronic pen, and a projector that projects a display screen based on an image signal transmitted from the computer device onto the touch panel, and is mounted on and executed by the computer device of the electronic pen input system. When the signal for restricting the input function by the touch panel is received from the electronic pen, the computer device is caused to function as processing means for restricting the input function by the touch panel.

  In one aspect of the program, the processing means restricts input processing to the touch panel within a predetermined range from the entry position by the electronic pen.

  By installing these programs in the electronic pen or the computer device and causing them to function, the electronic pen or the computer device according to the present invention can be configured.

  According to the present invention, the electronic pen can restrict the input function by the touch panel by transmitting a signal for restricting the input function by the touch panel to a computer device capable of input by the touch panel and input by the electronic pen. Is possible. Therefore, according to this invention, the input function of a touch panel can be restrict | limited and the erroneous input of a touch panel can be prevented. Similarly, when the computer apparatus receives a signal for limiting the input function by the touch panel from the electronic pen, the computer apparatus limits the input function by the touch panel. Thereby, the input function of a touch panel can be restrict | limited and the erroneous input of a touch panel can be prevented.

It is a system configuration figure of the input system in a 1st embodiment. It is the schematic which shows the structure of a display apparatus. It is explanatory drawing which shows the relationship between the arrangement | positioning of the dot in a dot pattern, and the value converted. (A) shows a dot pattern typically, and (b) is a figure showing an example of information corresponding to it. It is the schematic which shows the structure of an electronic pen. It is a system configuration figure of an input system concerning modification 1 of a 1st embodiment. The modification of the switch in 1st Embodiment is shown. It is the schematic which shows the structure of the electronic pen in 2nd Embodiment. It is a flowchart which shows the processing flow in 2nd Embodiment. The specific example based on the processing flow in 2nd Embodiment is shown. It is the schematic which shows the structure of the electronic pen in 3rd Embodiment. It is a flowchart which shows the processing flow in 3rd Embodiment. The specific example based on the processing flow in 3rd Embodiment is shown. It is a system configuration figure of the input system in a 4th embodiment. It is the figure shown about the restriction | limiting range set in 4th Embodiment. It is a flowchart which shows the processing flow in 4th Embodiment. It is a flowchart which shows the processing flow in 5th Embodiment.

  Hereinafter, first to fifth embodiments, which are embodiments of the present invention, will be described in order with reference to the drawings.

<First Embodiment>
First, a first embodiment according to the present invention will be described.

[Configuration of input system]
FIG. 1 shows a configuration of an input system according to the first embodiment. As shown in FIG. 1, the input system includes an electronic pen 1 used by a user, a computer device 2 that receives and processes information from the electronic pen 1 and the display device 3, and a display device 3 connected to the computer device 2. And comprising. As will be described later, the input system performs predetermined processing in accordance with input based on the electronic pen 1 (also referred to as “electronic pen input”) and input based on the touch panel 34 (also referred to as “touch panel input”). .

(Display device)
FIG. 2 shows a configuration of the display device 3 according to the first embodiment. As shown in FIG. 2, the display device 3 has a multilayer structure, and in order from the upper layer, a dot pattern overlayer (dot pattern forming layer) (also simply referred to as “DOL”) 30, a touch panel 34, and a display panel 35.

  The DOL 30 is disposed on the uppermost layer of the display device 3. The DOL 30 is an ink containing a material (titanium oxide, cholesteric liquid crystal, infrared reflective pigment, etc.) that reflects infrared rays so that it can be read by the electronic pen 1 on a base film 33 that is a transparent resin substrate such as polyethylene terephthalate. In this way, dots 32 of a dot pattern (coded pattern) are printed, and the layer structure is further protected by a protective layer 31 such as a transparent EB cured resin. Here, the dot pattern is printed with a material that reflects infrared rays. Even when visible light of various colors is radiated from the display panel 35 under the DOL 30, the dot pattern is formed with high contrast by the electronic pen 1. This is because it is desirable for recognition. The DOL 30 is an example of the “coded pattern layer” in the present invention.

  A touch panel 34 is bonded to the back surface of the DOL 30. The touch panel 34 detects a contact position on the DOL 30. The touch panel 34 is, for example, a resistive touch panel, an ultrasonic touch panel, an optical touch panel, a capacitive touch panel, or the like.

  The configuration of the display device 3 to which the present invention is applicable is not limited to the configuration of FIG. Instead of this, the display device 3 is provided with an infrared reflective layer between the dot pattern and the base film 33 or between the base film 33 and the touch panel 34, and the dot pattern further absorbs carbon that absorbs infrared rays. The configuration may be such that printing is performed with the contained ink.

(Dot pattern)
Subsequently, a dot pattern (coded pattern) constituted by the dots 32 will be described with reference to FIGS. The dot pattern is based on the system of Anoto. FIG. 3 is a diagram for explaining the relationship between dots in a dot pattern and values to which the dots are converted. As shown in FIG. 3, each dot of the dot pattern is associated with a predetermined value depending on its position. That is, each dot is associated with a value of 0 to 3 depending on which direction the top, bottom, left, or right is shifted from the reference position of the virtual grid (the intersection of the vertical and horizontal lines). The value of each dot can be further converted into a first bit value for the X coordinate and a second bit value for the Y coordinate. The position coordinates on the DOL 30 are determined by the combination of the information thus associated.

  FIG. 4A shows an arrangement of a certain dot pattern. As shown in FIG. 4A, 6 × 6 dots are arranged in a range of about 2 mm in length and width so that a unique pattern can be obtained no matter where 6 × 6 dots are taken on DOL 30. . The dot pattern formed by these 36 dots holds position coordinates (for example, on which position on the DOL 30 the dot pattern is located). FIG. 4B is a diagram in which each dot shown in FIG. 4A is converted into a value associated with the regularity shown in FIG. 3 according to the shift direction from the reference position of the lattice. This conversion is performed by the electronic pen 1 that captures an image of a dot pattern.

(Electronic pen)
Next, the electronic pen 1 will be described with reference to FIG. FIG. 5 is a schematic view showing the structure of the electronic pen 1. As shown in FIG. 5, the electronic pen 1 includes a pen unit 104, an LED 105, a CMOS camera 106, a pressure sensor 107, a processor 108 including a CPU, a memory 109 such as a ROM and a RAM, A communication unit 111 including a real-time clock 110, an antenna, and the like, and a battery 112 are provided. The tip of the pen unit 104 is a pen point unit 103, and the user touches the pen point unit 103 of the electronic pen 1 on the DOL 30 and enters a stroke (handwritten stroke). Here, the pen tip portion 103 of the electronic pen 1 that first contacts the DOL 30 is referred to as pen-down, and the pen tip portion 103 leaving the contacted (contacted) state is referred to as pen-up. A trajectory written between the pen-down and pen-up of the electronic pen 1 is one stroke, and characters, figures, etc. are composed of one or a plurality of strokes.

  The battery 112 is for supplying power to each component in the electronic pen 1, and is configured to turn on / off the power of the electronic pen 1 itself by, for example, detaching a cap (not shown) of the electronic pen 1. You may let them. The real time clock 110 transmits time information indicating the current time (time stamp) and supplies the time information to the processor 108. The pressure sensor 107 detects the pressure applied through the pen unit 104 from the pen point unit 103 when the user writes or taps a character or mark on the DOL 30 with the electronic pen 1, that is, the writing pressure, and the value is detected by the processor. To 108.

  The processor 108 switches on / off the switches of the LED 105 and the CMOS camera 106 based on the writing pressure data supplied from the pressure sensor 107. That is, when a user writes a character or the like on the DOL 30 with the electronic pen 1, the pen pressure is applied to the pen tip portion 103, and when the pressure sensor 107 detects a writing pressure higher than a predetermined value, the processor 108 It is determined that entry has started, and the LED 105 and the CMOS camera 106 are operated. Then, the communication unit 111 associates pen-down information detected by the pressure sensor 107 with identification information (hereinafter referred to as “pen ID”) of the electronic pen 1 described later, and transmits the information to the computer apparatus 2 as entry information. To do. When the user finishes entering one stroke and releases the electronic pen 1 from the DOL 30, the pressure sensor 107 detects pen-up because no writing pressure exceeding a predetermined value is detected. Then, the communication unit 111 associates the pen-up information detected by the pressure sensor 107 with the pen ID, and transmits it to the computer apparatus 2 as entry information.

  The LED 105 and the CMOS camera 106 are attached near the pen tip portion 103 of the electronic pen 1, and an opening 102 is formed in a portion of the housing 101 that faces the LED 105 and the CMOS camera 106. The LED 105 illuminates infrared rays toward the vicinity of the pen tip portion 103 on the DOL 30. The region is slightly deviated from the position where the pen tip 103 contacts the DOL 30. The CMOS camera 106 is provided with an infrared filter that transmits infrared rays and blocks non-infrared rays. The CMOS camera 106 captures a dot pattern in an area illuminated by the LED 105 and processes image data of the dot pattern as a processor. 108. Here, since the ink material of dots reflects infrared rays, the infrared rays irradiated by the LED 105 are reflected by the dots. Therefore, the dot portion has a relatively large amount of infrared reflection, and the portion other than the dot has a relatively small amount of infrared reflection. By photographing with the CMOS camera 106, a dot area and other areas can be distinguished by providing a threshold value based on the difference in the amount of reflected infrared light. Note that the shooting area by the CMOS camera 106 is a range including a size of about 2 mm × about 2 mm as shown in FIG. 4A, and the shooting by the CMOS camera 106 is performed at regular intervals of about 50 to 100 times per second. Is called. Further, the CMOS camera 106 has a sufficient depth of field in order to photograph dots clearly.

  The processor 108 performs X and Y coordinates (hereinafter simply referred to as “coordinate data”) in the DOL 30 of the stroke (handwriting) to be entered by the user from the dot pattern of the image data supplied by the CMOS camera 106 during the user entry. It is also called “coordinate information”). That is, the processor 108 converts the image data of the dot pattern as shown in FIG. 4 (a) supplied by the CMOS camera 106 into the data array shown in FIG. 4 (b). The data is converted into a Y coordinate bit value, and X and Y coordinate data are calculated from the data array by a predetermined calculation method. The processor 108 has a rotation correction processing function for correcting the arrangement of dots on the image due to the angle of the electronic pen 1 facing the dot pattern. Then, the processor 108 associates the current time (time stamp: entered time information) transmitted from the real-time clock 110, writing pressure data, and X and Y coordinate data. Hereinafter, these associated data are collectively referred to as “coordinate attribute information”. Since the 6 × 6 dot pattern in the DOL 30 does not overlap in the DOL 30, when the user enters characters or the like with the electronic pen 1, the processor 108 determines which position in the DOL 30 the entered position corresponds to. It can be specified by coordinate calculation.

  The memory 109 stores property information such as a pen ID such as “pen01” for identifying the electronic pen 1, a pen manufacturer number, and a pen software version. Then, the communication unit 111 associates the pen ID, time information (time stamp), writing pressure data, and X and Y coordinate data, and transmits them to the computer apparatus 2 as entry information. Transmission to the computer apparatus 2 by the communication unit 111 is performed immediately and sequentially by wireless transmission such as Bluetooth (registered trademark). Here, one or a plurality of coordinate attribute information generated between the pen-down and pen-up of the electronic pen 1 and transmitted to the computer device 2 is stored as stroke information by the computer device 2. In other words, one stroke is made up of one or a plurality of X, Y coordinates (coordinate points), and the computer apparatus 2 can use one or a plurality of pieces constituting one stroke based on the pen-down information and the pen-up information. Recognize coordinate attribute information. As described above, a set of coordinate attribute information generated by the electronic pen 1 when the user enters one stroke is referred to as “stroke information”. The pen tip 103 is made of a material such as plastic or stainless steel. The pen tip portion 103 does not have ink, and transmits pen pressure to the pressure sensor 107 via the pen portion 104.

  In addition, the electronic pen 1 includes a switch 113 that is operated by the user to switch the input function of the touch panel 34 on and off. The processor 108 detects a user operation on the switch 113 and controls a control signal for restricting the input function of the touch panel 34 and a control signal for releasing the restriction (collectively, these are referred to as a “touch panel input control signal”). Is generated). Then, the processor 108 transmits a touch panel input control signal to the computer apparatus 2 through the communication unit 111.

  The electronic pen 1 may be used as a ballpoint pen by loading an ink cartridge in the pen unit 104. In addition, the electronic pen 1 transmits entry information to the computer apparatus 2 by wireless transmission. However, the electronic pen 1 is not limited thereto, and may be connected to the computer apparatus 2 by wire and transmit entry information to the computer apparatus 2 by wire transmission. .

  Preferably, when the CMOS camera 106 recognizes the dot pattern, the electronic pen 1 determines whether the dot pattern is formed of an infrared reflecting material or an infrared absorbing material, and based on the determination. The dot pattern reading program may be switched. Specifically, the electronic pen 1 first performs a binarization process on the image captured by the CMOS camera 106 using a predetermined threshold, and the infrared reflection region and the infrared absorption from the binarized image. The area is discriminated, and the magnitude relation between the area of the infrared reflection area and the area of the infrared absorption area is compared. The electronic pen 1 performs a negative / positive inversion process on the binarized image when the infrared absorption area is larger than the infrared reflection area, and performs a negative / positive inversion process when the negative / positive inversion process is performed. The dot pattern is recognized based on the obtained image, and when the negative / positive inversion process is not performed, the dot pattern is recognized based on the binarized image. Thereby, it is possible to appropriately recognize both the dot pattern printed with the infrared absorbing ink and the dot pattern printed with the infrared reflective ink.

(Computer device)
Next, the computer apparatus 2 will be described again with reference to FIG. The computer device 2 includes, as hardware, an antenna device capable of data communication with the electronic pen 1, a processor such as a CPU, a memory such as a ROM and a RAM, a mouse and a keyboard. The computer device 2 may be configured by a PC (personal computer) including the display device 3 as a display unit, a tablet PC such as iPad (registered trademark), a PDA (Personal Data Assistance), or the like. As shown in FIG. 1, the computer device 2 functionally includes an input unit 21 such as a mouse and a keyboard, a reception unit 22, a processing unit 24, and a storage unit 25. The computer apparatus 2 performs predetermined processing based on the entry information received from the electronic pen 1 and the input information received from the touch panel 34 (also referred to as “touch panel input information”).

  The receiving means 22 is constituted by an antenna receiving circuit or the like, receives entry information from the electronic pen 1 and transmits it to the processing means 24. Further, the computer apparatus 2 converts the coordinate system (also referred to as “DOL coordinate system”) related to the dot pattern formed on the DOL 30 to the coordinate system (also referred to as “display coordinate system”) related to the display panel 35. Calibration processing functions for obtaining the first coordinate conversion function and the second coordinate conversion function for converting the coordinate system (also referred to as “touch panel coordinate system”) applied to the touch panel 34 to the display coordinate system. ing. Furthermore, when the computer apparatus 2 receives the data of the DOL coordinate system using the first coordinate conversion function obtained by the calibration process, the computer apparatus 2 converts the data into the data of the display coordinate system and draws a stroke. When touch panel coordinate system data is received using a function for performing a predetermined process and the second coordinate conversion function, the data is converted into display coordinate system data, and predetermined processes such as icon selection are performed. It has a function.

  The processing means 24 is constituted by a processor such as a CPU and controls the entire computer apparatus 2. Specifically, the processing unit 24 transmits the image signal generated by the computer apparatus 2 to the display panel 35 and displays an image corresponding to the image signal. The processing unit 24 stores the first coordinate conversion function and the second coordinate conversion function obtained by the calibration processing function in the storage unit 25.

  When the computer device 2 receives the entry information from the electronic pen 1, the first coordinate conversion means 241 of the processing means 24 converts the coordinate data included in the entry information, which is DOL coordinate system data, into a first coordinate conversion function. To convert to display coordinate system data. Then, the processing unit 24 recognizes that the position written by the electronic pen 1 is the dot pattern of the DOL 30 based on the converted coordinate data. The processing unit 24 stores the converted coordinate data in the storage unit 25, displays a stroke based on the converted coordinate data or the like on the display panel 35, or displays a folder or application at a position corresponding to the stroke. If the icon is displayed, processing such as selection of the icon is performed.

  When the computer apparatus 2 receives touch panel input information from the touch panel 34, the second coordinate conversion unit 242 of the processing unit 24 uses the second coordinate conversion function to convert the coordinate data of the touch panel coordinate system indicated by the touch panel input information, using the second coordinate conversion function. Convert to display coordinate system data. Then, when an icon such as a folder or an application is displayed on the coordinate data after conversion in the image being displayed on the display panel 35, the processing means 24 performs processing such as selection of the icon.

  The touch panel function switching unit 243 of the processing unit 24 switches the input function of the touch panel 34 on and off based on the touch panel input control signal received from the electronic pen 1 by the computer apparatus 2. Specifically, the touch panel function switching unit 243 turns off the input function of the touch panel 34 when the touch panel input control signal is a signal indicating that the input function of the touch panel 34 should be turned off. In this case, the touch panel function switching unit 243 may transmit a control signal to the touch panel 34 so that the touch panel 34 is stopped, or is transmitted from the touch panel 34 while the touch panel input function is turned off. The touch panel input information may be discarded without being processed by the processing means 24.

  On the other hand, when the touch panel input control signal is a signal indicating that the input function of the touch panel 34 should be turned on, the touch panel function switching unit 243 turns on the input function of the touch panel 34. Then, while the touch panel input function is on, the processing unit 24 performs a predetermined process based on the touch panel input information received from the touch panel 34 when there is a touch panel input.

  The storage unit 25 is configured by a memory such as a ROM or a RAM. The storage means 25 stores the first coordinate conversion function and the second coordinate conversion function. In addition, the storage unit 25 stores the entry information received from the electronic pen 1 for each pen ID or the predetermined data generated by the execution of the program according to the processing instruction of the processing unit 24.

[Operational effects of the input system of the first embodiment]
According to the input system of the first embodiment, the electronic pen 1 includes the switch 113, and transmits a touch panel input control signal to the computer device 2 based on a user's operation on the switch 113, and the input function of the touch panel 34. Switch on and off. By doing in this way, the input system can restrict the input function of the touch panel 34 at any timing of the user, and can prevent erroneous input of the touch panel 34. Therefore, the input system detects erroneous touch panel input due to the pen tip of the electronic pen 1 coming into contact with the DOL 30 during input by the electronic pen 1, or the side portion of the hand holding the electronic pen 1 is DOL 30. It is possible to prevent erroneous detection of touch panel input due to contact with the touch panel.

[Modification of First Embodiment]
Next, a modification of the first embodiment will be described. The following modifications may be applied in any combination to the first embodiment described above.

(Modification 1)
In FIG. 1 and FIG. 2, the DOL 30 and the touch panel 34 are stacked on the display panel 35. However, the configuration of the input system to which the present invention is applicable is not limited to this.

  FIG. 6 is a system configuration diagram of an input system according to the first modification of the first embodiment. As shown in FIG. 6, the input system according to the first modification of the first embodiment includes a projector 4 that projects the same image as the display screen of the display of the computer device 2 onto the DOL 30. Further, the DOL 30 and the touch panel 34 are stacked and disposed at a position away from the display of the computer apparatus 2. The touch panel 34 is connected to the computer device 2 and transmits touch panel input information to the computer device 2. Although the projector 4 shown in FIG. 6 is a front projector, it may be a rear projector. In addition, an imaging diffusion layer for imaging and diffusing the projected light may be adopted as a layer constituting the DOL 30 or the touch panel 34, or an imaging diffusion layer may be laminated separately from the DOL 30 and the touch panel 34.

  As described above, even when the DOL 30 and the touch panel 34 are not stacked on the display, the processing unit 24 of the computer apparatus 2 stores the coordinate information of the DOL coordinate system included in the entry information received from the electronic pen 1. Using the first coordinate conversion function stored by the means 25, it is converted into coordinate information of the display coordinate system, and input processing of the electronic pen 1 is performed. The processing unit 24 converts the touch panel coordinate system coordinate information indicated by the touch panel input information received from the touch panel 34 into coordinate information of the display coordinate system using the second coordinate conversion function stored by the entry unit 25, Input processing of the touch panel 34 is performed. Furthermore, the electronic pen 1 has a switch 113, generates a touch panel input control signal based on a user operation on the switch 113, and transmits the touch panel input control signal to the computer apparatus 2. The processing unit 24 switches the input function of the touch panel 34 on and off based on the received touch panel input control signal.

  Also with this configuration, the input system preferably processes the electronic pen input and the touch panel input by the user's finger, restricts the input function of the touch panel 34 at any timing of the user, and erroneously inputs the touch panel 34. Can be prevented.

(Modification 2)
The switch 113 is not limited to the type shown in FIG. 5, and may be any switch that allows the user to turn on / off the input function of the touch panel 34.

  FIG. 7 shows a schematic external view of switches 113A to 113D of a different type from the switch 113. FIG. The switch 113A shown in FIG. 7A is a knock-type switch, and its position is displaced in the direction indicated by the double arrow when pressed. The switch 113B shown in FIG. 7B is a multiple knock switch, and the first input unit 113Bx that is pressed along the arrow when the input function of the touch panel 34 is turned on, and the input function of the touch panel 34 are displayed. A second input unit 113By that is pressed along an arrow when turning off. The switch 113C illustrated in FIG. 7C is a slide type switch, and the position is displaced by sliding in the direction indicated by the double arrow. The switch 113D shown in FIG. 7 (d) is provided on the housing 101 at a portion (gripping part) that is gripped by a hand when electronic pen input is performed, and the user grips the electronic pen 1 by hand. Pressed to do.

  Each time the switches 113A to 113D change, the touch panel input control signal corresponding to the state is transmitted to the computer apparatus 2, and the touch panel function switching unit 243 inputs the touch panel 34 based on the touch panel input control signal. Turn the function on and off.

  In addition, the form which detects whether the user has gripped the electronic pen 1 and transmits the touch panel input control signal is not limited to the switch 113D.

  Instead of this, the electronic pen 1 may have a temperature sensor, and may generate a touch panel input control signal based on a temperature change of the electronic pen 1 and transmit it to the computer apparatus 2. In this case, for example, when the electronic pen 1 detects an increase in the temperature of the electronic pen 1, the electronic pen 1 generates a touch panel input control signal for turning off the input function of the touch panel 34, and then decreases the temperature of the electronic pen 1. If detected, a touch panel input control signal for turning on the input function of the touch panel 34 is generated. Similarly, the electronic pen 1 may include a pressure sensor instead of the switch 113 </ b> D, generate a touch panel input control signal based on a pressure change of a portion held by a hand, and transmit the touch panel input control signal to the computer apparatus 2.

  In another example, the electronic pen 1 has a tactile sensor (approach / contact sensor) that can continuously detect the contact state of the detected object, and generates a touch panel input control signal based on the detection signal of the tactile sensor. Then, it may be transmitted to the computer apparatus 2. The tactile sensor has, for example, a sensor element in which CMC (carbon microcoil) is uniformly dispersed in an elastic resin material (elastomer), and detects an impedance change around the element to detect contact with an object (here, a hand). Detect state. When the electronic pen 1 detects the contact state of the object, the electronic pen 1 generates a touch panel input control signal for turning off the input function of the touch panel 34. When the electronic pen 1 does not detect the contact state of the object, the input of the touch panel 34 is performed. A touch panel input control signal for turning on the function is generated.

(Modification 3)
In the description of FIG. 5, the switch 113 is a switch that switches the input function of the touch panel 34 on and off. Instead of this, the switch 113 may be a switch for selecting which one of the electronic pen input and the touch panel input is valid. In this case, the electronic pen 1 turns on the control signal indicating that the input function of the touch panel 34 is turned off and the input function of the electronic pen 1 is turned on and the input function of the touch panel 34 is turned on based on the user's operation on the switch 113. Then, a control signal for turning off the input function of the electronic pen 1 is transmitted to the computer apparatus 2. Even in this case, when the input with the electronic pen 1 is performed, the input system can turn off the input function of the touch panel 34 and suppress erroneous input to the touch panel 34.

(Modification 4)
The configuration of the electronic pen 1 is not limited to the configuration shown in FIG. In addition to this, the electronic pen 1 displays information on whether the input function of the touch panel 34 is on or off, or information on which of the electronic pen input and the touch panel input in the modification 3 is valid. You may have LED which notifies a user based on the lighting aspects, such as. In addition to or instead of this, the electronic pen 1 may include a liquid crystal display that displays on / off states of the input function of the touch panel 34. With this configuration, the input system can make the user clearly understand the state of the touch panel 34 and the like, and can improve operability.

(Modification 5)
In the first embodiment, the Anoto coding pattern (dot pattern) is used. However, any coding pattern indicating position coordinates may be used, and the Anoto coding is not limited.

Second Embodiment
Next, a second embodiment will be described. In the second embodiment, while the power of the electronic pen 1 itself is on, the switches of the LED 105 and the CMOS camera 106 are always set on, and the touch panel function switching unit 243 receives the entry information from the electronic pen 1. The second embodiment is different from the first embodiment in that the input function of the touch panel 34 is turned off. In addition, about the part similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  First, the electronic pen 1 according to the second embodiment will be described with reference to FIG. FIG. 8 is a schematic configuration diagram illustrating a structure of the electronic pen 1 according to the second embodiment. As shown in FIG. 8, the electronic pen 1 according to the second embodiment does not include the switch 113.

  The processor 108 always drives the LED 105 and the CMOS camera 106 regardless of the writing pressure data supplied from the pressure sensor 107. Therefore, when the pen tip 103 of the electronic pen 1 comes close to the dot pattern and the processor 108 can calculate the X and Y coordinates of the dot pattern from the image data supplied by the CMOS camera 106, the processor 108 Even before 103 comes into contact with the DOL 30, entry information with a writing pressure of 0 (zero) is generated. Then, the processor 108 transmits the generated entry information to the computer apparatus 2 via the communication unit 111.

  Next, processing executed by the touch panel function switching unit 243 in the second embodiment will be described.

  When the electronic pen 1 approaches the dot pattern and transmits entry information with a writing pressure of 0 to the computer device 2, the touch panel function switching unit 243 turns off the input function of the touch panel 34. When the entry information is not transmitted from the electronic pen 1 to the computer device 2, the touch panel function switching unit 243 turns the input function of the touch panel 34 back on. Accordingly, the touch panel function switching unit 243 prevents erroneous input to the touch panel 34 without being erroneously recognized as touch panel input even when the electronic pen touches the DOL 30 while the electronic pen input is being performed.

[Processing flow]
Next, a processing flow executed by the computer apparatus 2 in the input system according to the second embodiment will be described. The processing flow shown in FIG. 9 is repeatedly executed every time the computer apparatus 2 receives the entry information of writing pressure 0 by the electronic pen 1.

  When the user brings the electronic pen 1 close to the DOL 30 to a position where the dot pattern can be read, the electronic pen 1 captures the time stamp, writing pressure data with a writing pressure of 0, and coordinates calculated by imaging the dot pattern. The writing information of writing pressure 0 in which the coordinate attribute information including the information and the pen ID are associated is transmitted to the computer apparatus 2. In the computer apparatus 2, when the receiving unit 22 receives the entry information of the writing pressure 0 transmitted from the electronic pen 1, the processing unit 24 starts counting and sets the variable “t” whose initial value is 0. Only 1 is added for each predetermined time width (step S101). Then, the processing unit 24 turns off the input function of the touch panel 34 (step S102).

  Next, the processing means 24 determines whether or not entry information having a writing pressure (p) larger than 0 is received (step S103). As a result, the processing unit 24 determines whether the electronic pen 1 is in contact with the DOL 30 and input by the electronic pen 1 is performed, or whether the electronic pen 1 is in close proximity without contacting the DOL 30. If entry information with a writing pressure greater than 0 has not been received, in other words, entry information with a writing pressure of 0 has been received (step S103; No), the processing means 24 sets the variable t to a predetermined value “ It is determined whether or not the value is greater than “T” (step S104). If the variable t is equal to or smaller than the predetermined value T (step S104; No), the processing unit 24 returns to the process of step S103, and the writing pressure is greater than zero. Continue to monitor whether information has been received. On the other hand, when determining that the variable t is larger than the predetermined value T (step S104; Yes), the processing unit 24 turns the input function of the touch panel 34 back on (step S110). In this way, the processing unit 24 allows the electronic pen 1 to approach the DOL 30 and receive entry information with a writing pressure of 0 from the electronic pen 1, and then pen down to enter the entry information with a writing pressure greater than 0. Due to the time lag from 1 to reception, the input function of the touch panel 34 is prevented from being turned on unnecessarily. Further, the processing unit 24 frequently switches the input function of the touch panel 34 on and off when considering the contents to be entered without bringing the electronic pen 1 close to the DOL 30 and then pen-down for the electronic pen input. Suppresses the occurrence of Here, the predetermined value T is set to a value that is not too small so that the input function of the touch panel 34 is not frequently switched on and off in consideration of the above-described case, and the electronic pen 1 is placed on the DOL 30. A value that is not too large (for example, several seconds) is set in advance based on an experiment or the like in consideration of touch panel input after stopping the electronic pen input without pen-down.

  On the other hand, when it is determined that entry information with a writing pressure greater than 0 has been received (step S103; Yes), the processing unit 24 determines that the electronic pen 1 has touched the DOL 30 and an electronic pen input has been performed, and the storage unit. 25, the entry information is stored for each pen ID (step S105). Next, the processing means 24 converts the coordinate information of the DOL coordinate system included in the received entry information into the coordinate information of the display coordinate system using the first coordinate conversion function stored in the storage means 25 (step S106). Then, the processing means 24 performs electronic pen input processing (step S107). For example, based on the converted coordinate information, the processing unit 24 draws the stroke that has been entered on the image that is currently displayed by the display panel 35, and updates the display on the display panel 35. Are updated and stored in the storage means 25.

  Next, the processing means 24 determines whether or not entry information with a writing pressure greater than 0 is received (step S108), and determines that entry information with a writing pressure greater than 0 is received (step S108). ; Yes), the process proceeds to step S105 and performs processing based on the entry information. On the other hand, when it is determined that entry information with a writing pressure greater than 0 has not been received (step S108; No), the processing unit 24 determines that the electronic pen 1 has moved away from the DOL 30, and then entered the writing pressure 0. It is determined whether information is received (step S109). If it is determined that the entry information of writing pressure 0 is received (step S109; Yes), the processing unit 24 determines that the electronic pen 1 is in a proximity state where the dot pattern can be read with respect to the DOL 30. Returning to the process of step S108, it is determined again whether or not the pen of the electronic pen 1 is lowered.

  On the other hand, when it is determined that the entry information of writing pressure 0 is not received (step S109; No), the processing unit 24 moves away to a position where the electronic pen 1 cannot read the dot pattern with respect to the DOL 30, and the electronic pen by the user It is determined that the input has been completed, and the touch panel function is turned back on (step S110).

[Concrete example]
Next, a specific example of the process shown in the flowchart of FIG. 9 will be described in more detail with reference to FIG. FIG. 10 is a diagram illustrating the positional relationship between the electronic pen 1 and the DOL 30 and the contents of entry information transmitted to the computer apparatus 2 in the case of each positional relationship. In the entry information shown in FIG. 10, (Xa, Ya) to (Xd, Yd) indicate coordinate values in the DOL coordinate system, “PD” indicates pen-down, and “PU” indicates pen-up. Shall.

  First, in FIG. 10A, the user brings the electronic pen 1 close to the DOL 30. Thereby, the electronic pen 1 reads the dot pattern, generates entry information including the coordinate value of the DOL coordinate system and the information of the writing pressure 0, and transmits the entry information to the computer apparatus 2. The computer apparatus 2 receives the entry information of writing pressure 0, increases the variable t, starts counting (see step S101), and turns off the touch panel function (see step S102). Then, the computer device 2 monitors whether the variable t does not become larger than the predetermined value T while receiving the entry information of the writing pressure 0 (see step S103 and step S104).

  Next, in FIG. 10B, the user pens down the electronic pen 1 onto the DOL 30. In this case, the electronic pen 1 generates entry information including pen down information and writing pressure information greater than 0, and transmits the entry information to the computer apparatus 2. Then, since the computer apparatus 2 has received the entry information whose writing pressure is greater than 0 (see step S103), the computer device 2 performs an electronic pen input process based on the entry information (see steps S105 to S107). Thereafter, the electronic pen 1 generates entry information including coordinate values of the DOL30 coordinate system and writing pressure information greater than 0 while the user continues to fill the electronic pen 1 down. Transmit to device 2. In this case, since the computer apparatus 2 has received the entry information whose writing pressure is greater than 0 (see step S108), the computer device 2 continues the electronic pen input process and the like (see steps S105 to S107).

  Next, in FIG. 10C, the user pens up the electronic pen 1 and brings it close to the DOL 30. In this case, the electronic pen 1 generates entry information including pen-up information and writing pressure 0 information, and transmits the entry information to the computer device 2. In this case, the computer apparatus 2 monitors whether or not entry information of writing pressure 0 is received (see step S109).

  In FIG. 10D, the user pens down the electronic pen 1 onto the DOL 30 again from the state of FIG. In this case, the computer apparatus 2 again receives entry information whose writing pressure is greater than 0 from the electronic pen 1 (see step S108), and performs electronic pen input processing based on the entry information (see steps S105 to S107).

  On the other hand, in FIG. 10E, the user further moves the electronic pen 1 away from the DOL 30 from the state of FIG. In this case, since the electronic pen 1 cannot read the dot pattern, it does not generate entry information. Therefore, in this case, since the computer apparatus 2 no longer receives the entry information of the writing pressure 0 (see step S109), the computer device 2 turns the touch panel function back on (see step S110).

[Operational effects of the input system of the second embodiment]
According to the input system of the second embodiment, the LED 105 and the CMOS camera 106 are always set to ON while the power of the electronic pen 1 itself is ON, and the computer apparatus 2 receives the entry information of writing pressure 0. While the input function of the touch panel 34 is turned off and entry information is received from the electronic pen 1, this state is continued. As a result, when the user performs electronic pen input, the input function of the touch panel 34 can be performed before the pen tip of the electronic pen 1 contacts the DOL 30 or before the side portion of the hand holding the electronic pen 1 contacts the DOL 30. Can be turned off. Therefore, the input system according to the second embodiment can prevent erroneous detection of touch panel input accompanying electronic pen input.

  Further, the computer device 2 starts counting with the variable t after receiving the entry information of the writing pressure 0, and after that, even if the entry information with the writing pressure greater than 0 is not received, the variable t is greater than the predetermined value T. Until it becomes larger, the input function of the touch panel 34 is not turned back on. Thereby, it can suppress that switching of ON / OFF of the input function of the touch panel 34 occurs frequently.

[Modification of Second Embodiment]
In the embodiment described above, the pen tip contact of the electronic pen 1 is determined by the pen pressure P> 0. However, the pen pressure threshold P1 is considered to be reliable, and the detected pen pressure P is considered to be reliable. It may be determined that the tip of the pen is in contact by satisfying ≧ P1.
Moreover, in 2nd Embodiment, the modification of 1st Embodiment is applicable combining arbitrarily.

<Third Embodiment>
Next, a third embodiment will be described. In the third embodiment, the electronic pen 1 includes a proximity sensor 114 to be described later, and the touch panel function switching unit 243 inputs the touch panel 34 while receiving a signal or entry information based on the proximity sensor 114 from the electronic pen 1. This is different from the first embodiment in that the function is turned off. In the second embodiment, the touch panel function switching unit 243 determines whether or not the electronic pen 1 is close to the DOL 30 in the non-contact state based on whether or not the entry information of the writing pressure 0 is received. In the third embodiment, the touch panel function switching unit 243 is different from the second embodiment in that the touch panel function switching unit 243 determines this based on whether or not a signal based on the proximity sensor 114 is received. In addition, about the part similar to 1st Embodiment or 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  First, the electronic pen 1 according to the third embodiment will be described with reference to FIG. FIG. 11 is a schematic configuration diagram illustrating a structure of the electronic pen 1 according to the third embodiment. As shown in FIG. 11, the electronic pen 1 according to the third embodiment includes a proximity sensor 114.

  The proximity sensor 114 is provided on the housing 101 and detects the presence or absence of an object in the pen tip direction of the electronic pen 1. The proximity sensor 114 is an ultrasonic sensor, for example. When the proximity sensor 114 approaches the DOL 30 within a predetermined distance, the proximity sensor 114 detects the proximity state with respect to the DOL 30, and the processor 108 detects that the pen tip portion 103 of the electronic pen 1 is based on the detection signal of the proximity sensor 114. A proximity signal indicating that the DOL 30 has been approached is generated and transmitted to the computer apparatus 2 via the communication unit 111.

  On the other hand, the processor 108 does not transmit the proximity signal to the computer apparatus 2 when the entry information is transmitted to the computer apparatus 2 via the communication unit 111. That is, when the electronic pen 1 is in contact with the DOL 30, the processor 108 transmits entry information to the computer apparatus 2 instead of the proximity signal, and the electronic pen 1 approaches the DOL 30 in a non-contact state. If it is, the proximity signal is transmitted to the computer apparatus 2.

  The touch panel function switching unit 243 turns off the input function of the touch panel 34 while the reception unit 22 receives the proximity signal or the entry information from the electronic pen 1. Accordingly, the touch panel function switching unit 243 prioritizes the electronic pen input over the touch panel input while the electronic pen input is being performed, and prevents erroneous input to the touch panel 34 during the electronic pen input.

[Processing flow]
Next, a processing flow executed by the computer apparatus 2 in the input system according to the third embodiment will be described. The processing flow shown in FIG. 12 is repeatedly executed each time the computer apparatus 2 receives a proximity signal with the electronic pen 1.

  When the user brings the electronic pen 1 close to the DOL 30 within a predetermined distance, the proximity sensor 114 detects a proximity state with the DOL 30, and the electronic pen 1 transmits a proximity signal to the computer apparatus 2. In the computer apparatus 2, when the receiving unit 22 receives the proximity signal transmitted from the electronic pen 1, the processing unit 24 starts counting and sets a variable t having an initial value of 0 to 1 every predetermined time width. Are added (step S201). Then, the processing unit 24 turns off the input function of the touch panel 34 (step S202).

  Next, the processing means 24 determines whether entry information has been received (step S203). As a result, the processing unit 24 determines whether the electronic pen 1 is in contact with the DOL 30 and input by the electronic pen 1 is performed. If entry information has not been received (step S203; No), the processing unit 24 determines whether or not the variable t is greater than the predetermined value T (step S204). (Step S204; No), the processing means 24 returns to the process of Step S203 and continues to monitor whether or not entry information has been received. On the other hand, when it is determined that the variable t is larger than the predetermined value T (step S204; Yes), the processing unit 24 turns the input function of the touch panel 34 back on (step S210). In this way, the processing unit 24 is caused by a time lag from when the electronic pen 1 approaches the DOL 30 and receives the proximity signal from the electronic pen 1 to when the pen is down and the entry information is received from the electronic pen 1. Thus, the input function of the touch panel 34 is prevented from being turned on unnecessarily. Further, the processing means 24 eliminates the need to switch the input function on and off of the touch panel 34 when considering the contents that the user brings the electronic pen 1 close to the DOL 30 for electronic pen input and then enters without pen-down. Suppresses the occurrence.

  On the other hand, if it is determined that the entry information has been received (step S203; Yes), the processing unit 24 determines that the electronic pen 1 is in contact with the DOL 30 and input is performed by the electronic pen 1, and the storage unit 25 stores the information. The entry information is stored for each pen ID (step S205). Next, the processing means 24 converts the coordinate information of the DOL coordinate system included in the received entry information into the coordinate information of the display coordinate system using the first coordinate conversion function stored in the storage means 25 (step S206). Then, the processing unit 24 performs an electronic pen input process (step S207).

  Next, the processing means 24 determines whether or not entry information has been received (step S208). If it is determined that entry information has been received (step S208; Yes), the processing means 24 continues to the processing of step S205. , Process based on the entered information. On the other hand, if it is determined that the entry information has not been received (step S208; No), the processing unit 24 determines that the electronic pen 1 has moved away from the DOL 30, and then determines whether a proximity signal has been received. (Step S209). If it is determined that the proximity signal is received (step S209; Yes), the processing unit 24 determines that the electronic pen 1 is in the proximity state, returns to the process of step S208, and again pen-down the electronic pen 1. It is determined whether or not.

  On the other hand, if it is determined that the proximity signal is not received (step S209; No), the processing unit 24 determines that the electronic pen 1 is separated from the DOL 30 and the electronic pen input by the user is completed, and the touch panel function is turned on. Return (step S210).

[Concrete example]
Next, a specific example of the process shown in the flowchart of FIG. 12 will be described in more detail with reference to FIG. FIG. 13 is a diagram illustrating the positional relationship between the electronic pen 1 and the DOL 30 and the contents of entry information transmitted to the computer device 2 in the case of each positional relationship.

  First, in FIG. 13A, the user brings the electronic pen 1 close to the DOL 30. As a result, the electronic pen 1 generates a proximity signal and transmits it to the computer apparatus 2. The computer apparatus 2 receives the proximity signal, increases the variable t, starts counting (see step S201), and turns off the touch panel function (see step S202). Then, the computer apparatus 2 monitors whether the variable t does not become larger than the predetermined value T while receiving the entry information of the writing pressure 0 (see step S203 and step S204).

  Next, in FIG. 13B, the user pens down the electronic pen 1 onto the DOL 30. In this case, the electronic pen 1 generates entry information including pen-down information and transmits it to the computer device 2. Since the computer apparatus 2 has received the entry information (see step S203), the computer device 2 performs an electronic pen input process or the like based on the entry information (see steps S205 to S207). Thereafter, the electronic pen 1 generates entry information including coordinate values of the DOL 30 coordinate system and transmits the entry information to the computer device 2 while the user continues the entry with the pen down of the electronic pen 1. In this case, since the computer apparatus 2 has received the entry information (see step S208), the computer device 2 continues the electronic pen input process (see steps S205 to S207).

  Next, in FIG. 13C, the user performs pen-up of the electronic pen 1 from the DOL 30, and the electronic pen 1 is in a state of being close to the DOL 30. In this case, the electronic pen 1 transmits entry information including pen-up information to the computer apparatus 2, and then transmits a proximity signal to the computer apparatus 2 because the electronic pen 1 and the DOL 30 are close to each other. In this case, the computer apparatus 2 determines whether entry information has been received (see step S208) and also determines whether a proximity signal has been received (see step S209).

  Then, in FIG. 13D, the user pens down the electronic pen 1 onto the DOL 30 again from the state of FIG. In this case, the computer apparatus 2 receives the entry information from the electronic pen 1 again (see step S208), and performs an electronic pen input process based on the entry information (see steps S205 to S207).

  On the other hand, in FIG. 13E, the user further moves the electronic pen 1 away from the DOL 30 from the state of FIG. In this case, the proximity sensor 114 does not detect the DOL 30 and the electronic pen 1 does not generate a proximity signal. Therefore, in this case, since the computer apparatus 2 does not receive the proximity signal (see step S209), the touch panel function is turned back on (see step S210).

[Operational effects of the input system of the third embodiment]
According to the input system of the third embodiment, the electronic pen 1 includes the proximity sensor 114 that detects whether the electronic pen 1 is close to the DOL 30, and the computer device 2 turns off the input function of the touch panel 34 when a proximity signal is received. This state is continued while the proximity signal or the entry information is received from the electronic pen 1. Thus, the input system allows the touch panel 34 before the pen tip of the electronic pen 1 contacts the DOL 30 or before the side of the hand holding the electronic pen 1 contacts the DOL 30 when the user performs electronic pen input. The input function can be turned off. Therefore, the input system according to the third embodiment can prevent erroneous detection of touch panel input accompanying electronic pen input.

  Further, the computer device 2 starts counting by the variable t after receiving the proximity signal, and thereafter, even if the entry information is not received, the input function of the touch panel 34 until the variable t becomes larger than the predetermined value T. Does not turn on. As a result, the input system can suppress frequent switching of the input function of the touch panel 34 between on and off.

[Modification of Third Embodiment]
In the third embodiment, the modification of the first embodiment can be applied in any combination.

<Fourth embodiment>
Next, a fourth embodiment will be described. FIG. 14 is a system configuration diagram of an input system according to the fourth embodiment. In the fourth embodiment, the processing unit 24 is different from the second embodiment in that the processing unit 24 includes a touch panel function limiting unit 244 that limits a period and a range in which the touch panel input is valid, instead of the touch panel function switching unit 243. While the power supply of 1 itself is on, the LED 105 and the CMOS camera 106 are always turned on, which is the same as in the second embodiment. In addition, about the part similar to 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  The touch panel function restricting means 244 of the processing means 24 is a pen tip position ("electronic pen input position") indicated by the coordinate information of the entry information while the computer apparatus 2 receives the entry information from the electronic pen 1. The input function of the touch panel 34 within a predetermined range is turned off. Then, when the electronic pen input position changes, the processing unit 24 determines a range in which the input function of the touch panel 34 is turned off based on the changed electronic pen input position. Hereinafter, a range in which the input function of the touch panel 34 is turned off based on the electronic pen input position is also referred to as a “restricted range Wr”.

  Specific processing of the touch panel function restriction unit 244 will be further described with reference to FIG. FIG. 15 is an example of a display screen of the display device 3 in the fourth embodiment.

  In FIG. 15, the user touches the pen tip portion 103 of the electronic pen 1 on the DOL 30. In this case, the processing unit 24 converts the coordinate data included in the entry information received from the electronic pen 1 into coordinate data in the display coordinate system using the first coordinate conversion function, and the position of the coordinate data is converted to the electronic pen. Determine the input position. Then, the processing unit 24 determines a circular area having a radius R centered on the electronic pen input position as the limit range Wr, turns off the input function of the touch panel 34 in the limit range Wr, and sets the area outside the limit range Wr. The input function of the touch panel 34 is turned on. The radius R described above is set to, for example, 10 cm to 15 cm. Specifically, when an input with the electronic pen 1 is performed on the DOL 30, the side portion of the hand that holds the electronic pen 1 from the electronic pen input position is determined. A maximum distance to a position where there is a possibility of contact on the DOL 30 is obtained in advance by experiments or the like, and the radius R is determined as the maximum distance.

  Further, when the electronic pen input position changes, the processing unit 24 newly sets a limit range Wr based on the changed electronic pen input position, and turns off the input function of the touch panel 34 in the range. Therefore, while the stroke is drawn by the electronic pen 1, the limit range Wr also moves as the electronic pen input position moves. Further, when receiving the entry information from the plurality of electronic pens 1, the processing unit 24 provides a limit range Wr corresponding to each electronic pen 1. Specifically, in this case, the processing unit 24 specifies each electronic pen input position based on the entry information of each electronic pen 1 and determines the limit range Wr based on the electronic pen input position. In this case, the limited range Wr is an area on the DOL 30 that is a combination of circular areas with a radius R centered on each electronic pen input position.

[Processing flow]
Next, a processing flow based on input by the electronic pen 1 in the input system of the fourth embodiment will be described. The processing flow shown in FIG. 16 is repeatedly executed every time the computer apparatus 2 receives the entry information of writing pressure 0 by the electronic pen 1. Note that the processing flow shown in FIG. 16 is executed in parallel for each pen ID of the electronic pen 1 when entry information is simultaneously generated by a plurality of electronic pens 1.

  When the user brings the electronic pen 1 close to the DOL 30 to a position where the dot pattern can be read, the electronic pen 1 associates the coordinate attribute information including the coordinate information obtained by imaging the dot pattern with the pen ID. The writing information of writing pressure 0 is transmitted to the computer device 2. In the computer apparatus 2, when the receiving unit 22 receives the entry information of the writing pressure 0 transmitted from the electronic pen 1, the processing unit 24 starts counting and sets the variable t whose initial value is 0 for a predetermined time. Only 1 is added for each width (step S301). Then, the processing unit 24 converts the DOL coordinate system coordinate information included in the received entry information into the coordinate information of the display coordinate system using the first coordinate conversion function stored in the storage unit 25 (step S302). ). Then, the processing means 24 determines the electronic pen input position based on the converted coordinate information, and restricts the input function of the touch panel 34 within a predetermined range from the electronic pen input position (step S303). Specifically, the processing unit 24 turns off the input function of the touch panel 34 in the circular region having the radius R from the electronic pen input position.

  Next, the processing means 24 determines whether or not entry information whose writing pressure (p) is greater than 0 has been received (step S304). As a result, the processing unit 24 determines whether the electronic pen 1 is in contact with the DOL 30 and input by the electronic pen 1 is performed, or whether the electronic pen 1 is in close proximity without contacting the DOL 30. If entry information with a writing pressure greater than 0 has not been received (step S304; No), the processing unit 24 determines whether the variable t is greater than a predetermined value T (step S305), and the variable t is predetermined. If the value is equal to or smaller than the value T (step S305; No), the processing unit 24 returns to the process of step S304 and continuously monitors whether or not entry information having a writing pressure greater than 0 is received. Then, when the variable t becomes larger than the predetermined value T (step S305; Yes), the processing unit 24 uses the touch panel 34 based on the electronic pen input position of the electronic pen 1 to be processed in the processing flow. The restriction on the input function is released (step S312).

  On the other hand, if it is determined that entry information with a writing pressure greater than 0 has been received (step S304; Yes), the processing unit 24 determines that the electronic pen 1 is in contact with the DOL 30 and input by the electronic pen 1 has been performed. The storage unit 25 stores the entry information for each pen ID (step S306). Next, the processing means 24 converts the coordinate information of the DOL coordinate system included in the received entry information into the coordinate information of the display coordinate system using the first coordinate conversion function stored in the storage means 25 (step S307). Then, the processing means 24 determines the electronic pen input position based on the converted coordinate information, and turns off the input function of the touch panel 34 in the circular area having the radius R from the electronic pen input position (step S308). Then, the processing means 24 performs electronic pen input processing (step S309).

  Next, the processing means 24 determines whether or not entry information with a writing pressure greater than 0 is received (step S310), and determines that it has received entry information with a writing pressure greater than 0 (step S310). ; Yes), the process proceeds to step S306, and the process is performed based on the entry information. On the other hand, when it is determined that entry information with a writing pressure greater than 0 has not been received (step S310; No), the processing unit 24 determines that the electronic pen 1 has moved away from the DOL 30, and then entered the writing pressure 0. It is determined whether information has been received (step S311). If it is determined that the entry information of writing pressure 0 is received (step S311; Yes), the processing unit 24 determines that the electronic pen 1 is in a proximity state where the dot pattern can be read with respect to the DOL 30. Returning to the process of step S310, it is determined again whether or not the pen of the electronic pen 1 is lowered.

  On the other hand, when it is determined that the entry information of writing pressure 0 is not received (step S311; No), the processing unit 24 moves away to a position where the electronic pen 1 cannot read the dot pattern with respect to the DOL 30, and the electronic pen by the user It is determined that the input has been completed, and the restriction on the input function of the touch panel 34 based on the electronic pen input position of the electronic pen 1 that is the processing target in the processing flow is released (step S312).

[Operational effects of the input system of the fourth embodiment]
According to the input system of the fourth embodiment, the LED 105 and the CMOS camera 106 are always set to ON while the power of the electronic pen 1 itself is turned on. The input function of the touch panel 34 in a predetermined range Wr from the position is limited. Thus, when the user performs electronic pen input, the electronic pen 1 can be moved from the electronic pen input position before the pen tip of the electronic pen 1 contacts the DOL 30 or before the side portion of the hand holding the electronic pen 1 contacts the DOL 30. The input function of the touch panel 34 in the predetermined range Wr can be turned off. Therefore, the input system of the fourth embodiment can prevent erroneous detection of touch panel input accompanying electronic pen input.

  In addition, the computer device 2 turns off the input function of the touch panel 34 only within a predetermined range from the electronic pen input position, thereby causing an error caused by the side portion of the hand holding the electronic pen 1 coming into contact with the DOL 30. While preventing the input, it is possible to effectively process the touch panel input by the finger of one hand or the finger of the other user. Therefore, the fourth embodiment is also suitably applied to the case where the display device 3 has a large screen and there is a possibility that a plurality of persons perform touch panel input and pen input.

  Further, the computer device 2 starts counting with the variable t after receiving the entry information of the writing pressure 0, and after that, even if the entry information with the writing pressure greater than 0 is not received, the variable t is greater than the predetermined value T. Until it becomes larger, the restriction on the input function of the touch panel 34 is not released. Thereby, it can suppress that the setting and cancellation | release of a restriction | limiting of the input function of the touch panel 34 generate | occur | produce frequently.

[Modification of Fourth Embodiment]
Next, a modification of the fourth embodiment will be described. In the fourth embodiment, in addition to the first modification of the first embodiment, the fifth modification, and the second modification (the pen tip contact determination based on the detected writing pressure P ≧ P1), the following modification 6 is arbitrarily selected. Applicable in combination.

(Modification 6)
In the description of FIG. 15, the processing unit 24 defines the circular area having the radius R from the electronic pen input position as the limited range Wr, but the method of setting the limited range Wr is not limited to this. Instead of this, for example, the processing means 24 may determine an area of a predetermined shape other than an ellipse or other circles as the limit range Wr based on the electronic pen input position.

<Fifth Embodiment>
Next, a fifth embodiment will be described. In the fifth embodiment, the electronic pen 1 includes the proximity sensor 114, and the processing unit 24 turns off the input function of the touch panel 34 while receiving a signal or entry information based on the proximity sensor 114 from the electronic pen 1. The third embodiment is the same as the third embodiment in that the touch panel function switching unit 243 is replaced by a touch panel function limiting unit 244 that limits the period and range in which the touch panel input is valid, as in the fourth embodiment. Different from the embodiment. In addition, about the part similar to 3rd Embodiment or 4th Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

[Processing flow]
A processing flow executed by the computer apparatus 2 in the input system according to the fifth embodiment will be described. The processing flow shown in FIG. 17 is repeatedly executed every time the computer apparatus 2 receives a proximity signal from the electronic pen 1. Note that the processing flow shown in FIG. 17 is executed in parallel for each pen ID of the electronic pen 1 when a proximity signal in which entry information is generated by a plurality of electronic pens 1 is received simultaneously.

  When the electronic pen 1 is brought close to the DOL 30 within a predetermined distance, the proximity sensor 114 detects the proximity state with the DOL 30, and the electronic pen 1 transmits a proximity signal to the computer apparatus 2. In the computer apparatus 2, when the receiving unit 22 receives the proximity signal transmitted from the electronic pen 1, the processing unit 24 starts counting and sets a variable t having an initial value of 0 to 1 every predetermined time width. Are added (step S401). Then, the processing means 24 temporarily turns off the input function in the entire range of the touch panel 34 because the electronic pen input position is unknown at this time (step S402).

  Next, the processing means 24 determines whether or not entry information has been received (step S403). As a result, the processing unit 24 determines whether the electronic pen 1 is in contact with the DOL 30 and input by the electronic pen 1 is performed, or whether the electronic pen 1 is in close proximity without contacting the DOL 30. If entry information has not been received (step S403; No), the processing means 24 determines whether or not the variable t is larger than the predetermined value T (step S404). (Step S404; No), the process returns to Step S404, and it is continuously monitored whether or not the entry information is received. Then, when the variable t becomes larger than the predetermined value T (step S404; Yes), the processing unit 24 turns the input function of the touch panel 34 back on (step S411).

  On the other hand, when it is determined that the entry information has been received (step S403; Yes), the processing unit 24 determines that the electronic pen 1 is in contact with the DOL 30 and input is performed by the electronic pen 1, and the storage unit 25 stores the information. The entry information is stored for each pen ID (step S405). Next, the processing means 24 converts the coordinate information of the DOL coordinate system included in the received entry information into the coordinate information of the display coordinate system using the first coordinate conversion function stored in the storage means 25 (step S406). Then, the processing means 24 determines the electronic pen input position based on the converted coordinate information, and turns off the input function of the touch panel 34 in the circular area with the radius R from the electronic pen input position (step S407). Then, the processing means 24 performs electronic pen input processing (step S408).

  Next, the processing means 24 determines whether or not entry information has been received (step S409). If it is determined that entry information has been received (step S409; Yes), the processing means 24 continues to the process of step S405. , Process based on the entered information. On the other hand, if it is determined that the entry information has not been received (step S409; No), the processing unit 24 determines that the electronic pen 1 has moved away from the DOL 30, and then determines whether a proximity signal has been received. (Step S410). If it is determined that the proximity signal is received (step S410; Yes), the processing unit 24 determines that the electronic pen 1 is in the proximity state, returns to the process of step S208, and again the pen down of the electronic pen 1 is performed. It is determined whether or not.

  On the other hand, when it is determined that the entry information has not been received (step S410; No), the processing unit 24 determines that the electronic pen 1 has been moved away from the DOL 30 by a predetermined distance and the electronic pen input by the user has ended, and the processing is performed. The restriction on the input function of the touch panel 34 based on the electronic pen input position of the electronic pen 1 to be processed in the flow is released (step S411).

[Operational effects of the input system of the fifth embodiment]
According to the input system of the fifth embodiment, the electronic pen 1 includes the proximity sensor 114 that detects whether the electronic pen 1 is close to the DOL 30, and the computer apparatus 2 receives a proximity signal or entry information from the electronic pen 1. In the meantime, certain restrictions are placed on the input function of the touch panel 34. As a result, when the user performs electronic pen input, the input function of the touch panel 34 can be performed before the pen tip of the electronic pen 1 contacts the DOL 30 or before the side portion of the hand holding the electronic pen 1 contacts the DOL 30. Can be turned off. Therefore, the input system of the fourth embodiment can prevent erroneous detection of touch panel input accompanying electronic pen input.

  Moreover, the computer apparatus 2 originated in the side part etc. of the hand holding the electronic pen 1 contacting DOL30 by turning off the input function of the touch panel 34 only in the predetermined range based on an electronic pen input position. While preventing an erroneous input, it is possible to effectively process a touch panel input by a finger of one hand or a finger of another user. Therefore, the fifth embodiment is also suitably applied to the case where the display device 3 has a large screen and there is a possibility that a plurality of persons perform touch panel input and pen input.

  Further, the computer device 2 starts counting by the variable t after receiving the proximity signal, and thereafter, even if the entry information is not received, the input function of the touch panel 34 until the variable t becomes larger than the predetermined value T. Does not turn on. As a result, the input system can suppress frequent switching of the input function of the touch panel 34 between on and off.

[Modification of Fifth Embodiment]
In the fifth embodiment, the configuration of the first modification of the first embodiment and the fifth modification can be arbitrarily combined and applied.
In addition, when the proximity state continues and the proximity signal is received after the pen-up of the electronic pen 1, the entry information is not received (S410: Yes → S409: No → S410: Yes loop) Similarly to S402, the touch panel function may be turned off in the entire range in order to prevent erroneous input.

DESCRIPTION OF SYMBOLS 1 ... Electronic pen 2 ... Computer apparatus 3 ... Display apparatus 21 ... Input means 22 ... Receiving means 24 ... Processing means 25 ... Storage means 30 ... DOL
34 ... Touch panel 35 ... Display panel

Claims (20)

A display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed is laminated,
An electronic pen used together with a computer device capable of input by the touch panel and input by the electronic pen,
An electronic pen comprising: restriction signal processing means for transmitting a signal for restricting an input function of the touch panel to the computer device.   The restriction signal processing means has a switch operated by a user, and transmits a signal for restricting an input function by the touch panel when detecting that the switch is operated. The electronic pen according to claim 1.   The restriction signal processing means has a sensor for detecting gripping of the user in the grip portion, and transmits a signal for limiting the input function by the touch panel when the gripping of the user is detected by the sensor. The electronic pen according to claim 1, wherein:   When the restriction signal processing means recognizes the coding pattern when the pen tip of the electronic pen is close to the coding pattern in a state where no pressure is applied to the pen tip of the electronic pen, the touch panel The electronic pen according to claim 1, wherein the electronic pen transmits a signal for limiting an input function.   The limiting signal processing means includes a proximity sensor that detects that a pen tip portion of the electronic pen is close to the display, and the touch panel is configured to detect that the proximity sensor has approached the display. The electronic pen according to claim 1, wherein the electronic pen transmits a signal for limiting an input function. A display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed are stacked;
A computer device comprising: processing means for restricting an input function by the touch panel when receiving a signal for restricting an input function by the touch panel from the electronic pen.   The computer apparatus according to claim 6, wherein the processing unit releases the input function restriction by the touch panel when receiving a signal for releasing the input function restriction by the touch panel from the electronic pen.   The computer apparatus according to claim 6, wherein the processing unit cancels the input function restriction by the touch panel when the information about the coding pattern is not received from the electronic pen.   9. The computer apparatus according to claim 6, wherein the processing unit restricts input processing to the touch panel within a predetermined range from an entry position by the electronic pen. 10. A display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed are stacked;
A computer device capable of input by the touch panel and input by the electronic pen,
The electronic pen is
A limiting signal processing means for transmitting a signal for limiting an input function by the touch panel to the computer device;
The computer device includes:
An electronic pen input system comprising processing means for restricting an input function by the touch panel when receiving a signal for restricting an input function by the touch panel from the electronic pen. A touch panel in which a coding pattern layer on which a coding pattern readable by an electronic pen is formed is laminated;
A computer device capable of communicating with the touch panel, capable of input by the touch panel, and input by the electronic pen;
A projector that projects a display screen based on an image signal transmitted from the computer device onto the touch panel,
The electronic pen is
A limiting signal processing means for transmitting a signal for limiting an input function by the touch panel to the computer device;
The computer device includes:
An electronic pen input system comprising processing means for restricting an input function by the touch panel when receiving a signal for restricting an input function by the touch panel from the electronic pen. The limit signal processing means of the electronic pen is
Regardless of whether or not the electronic pen detects pressure on the pen tip portion, when the pen tip portion is close to the coded pattern and recognizes the coded pattern, a signal for limiting the input function by the touch panel The electronic pen input system according to claim 10 or 11, wherein the electronic pen input system is transmitted.   The said processing means of the said computer apparatus cancels | releases the input function restriction | limiting by the said touch panel, if the signal for releasing the input function restriction | limiting by the said touch panel is received from the said electronic pen. Electronic pen input system as described.   The said processing means of the said computer apparatus cancels | releases the input function restriction | limiting by the said touch panel, when the information regarding an encoding pattern is no longer received from the said electronic pen. Electronic pen input system as described in.   The electronic device according to any one of claims 10 to 14, wherein the processing means of the computer device limits an input process to the touch panel within a predetermined range from an entry position by the electronic pen. Pen input system. A display in which a touch panel and a coding pattern layer on which a coding pattern readable by an electronic pen is formed is laminated,
A program that is mounted on and executed by an electronic pen that is used with a computer device capable of inputting by the touch panel and inputting by the electronic pen,
A program for causing the electronic pen to function as a restriction signal processing means for transmitting a signal for restricting an input function of the touch panel to the computer device. The limiting signal processing means is
Regardless of whether or not the electronic pen detects pressure on the pen tip portion, when the pen tip portion is close to the coded pattern and recognizes the coded pattern, a signal for limiting the input function by the touch panel The program according to claim 16, wherein the program is transmitted. A program that is mounted and executed in a computer device including a display in which a touch panel and a coding pattern layer in which a coding pattern that can be read by an electronic pen is formed are stacked,
When a signal for restricting an input function by the touch panel is received from the electronic pen, the program causes the computer device to function as processing means for restricting the input function by the touch panel. A touch panel in which a coding pattern layer on which a coding pattern readable by an electronic pen is formed is laminated;
A computer device capable of communicating with the touch panel, capable of input by the touch panel, and input by the electronic pen;
A projector that projects a display screen based on an image signal transmitted from the computer device onto the touch panel, and is a program that is installed and executed in the computer device of an electronic pen input system,
When a signal for restricting an input function by the touch panel is received from the electronic pen, the program causes the computer device to function as processing means for restricting the input function by the touch panel.   The program according to claim 18 or 19, wherein the processing means limits processing of input to the touch panel within a predetermined range from an entry position by the electronic pen.