JP2012118637A - Authentication system, input device, and authentication program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform authentication in a touch panel device with a capacitance system by simple structure and a simple operation.SOLUTION: An authentication system 1 comprises a tablet type computer 3 using a capacitance system touch panel, and an electronic seal 5. The electronic seal 5 can input identification information comprised of a capacitance variation in the tablet type computer 3. The tablet type computer 3 performs authentication with the input identification information.

Description

  The present invention relates to an authentication system, and more particularly to an authentication system using a capacitive touch panel device.

  There are a plurality of touch panel methods such as a resistive film method, an infrared method, a capacitance method, and an ultrasonic method. The electrostatic capacity method is a method of performing position detection using a change in electrostatic capacity. There are two types of capacitance methods: surface type and projection type. The surface type is an analog detection method using a single sheet-like transparent electrode, and the projection type is an integration detection method using XY grid-like drive electrodes.

  Such touch panels have been widely used, for example, by being adopted in tablet computers. In addition, there are cases where it is desired that the conventional paper-based work is also performed by a tablet computer equipped with a touch panel. For example, there is known an electronic stamping apparatus for executing a stamping operation on document information with a touch panel of a tablet computer (see, for example, Patent Document 1).

  In general, it is assumed that a capacitive touch panel is input by an operator using a finger. Therefore, no specific solution has been studied in the past for inputting specific information by means other than a finger. For this reason, when the electronic stamping apparatus is realized by a capacitive touch panel, it has not been realized that identification information can be input with a simple structure and operation.

  An object of the present invention is to enable authentication with a simple structure and operation in a capacitive touch panel device.

  Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.

  An authentication system according to an aspect of the present invention includes a capacitive touch panel device and an input device. The input device can input identification information including a change in capacitance to the touch panel device. The touch panel device authenticates the input identification information.

  In this system, when the input device inputs identification information including a change in capacitance to the touch panel device, the touch panel device authenticates the input identification information. Such simple structure and operation enable authentication using a capacitive touch panel device.

  The touch panel device may perform different operations for each input device after authenticating the identification information from the input device.

  In this system, the operator can know the fact based on the operation of the touch panel device when the authentication by the input device used by the operator is correctly performed.

  The touch panel device may display information identifying the input device after authenticating the identification information from the input device.

  In this system, for example, information specifying the input device is displayed on the surface of the touch panel device so that a seal image is displayed when the stamp is pushed onto the paper. As a result, the operator can know the fact based on the operation of the touch panel device when the authentication by the input device used by the operator is correctly performed.

  The touch panel device may include a capacitive touch panel, a storage unit, and a display unit. The storage unit stores identification information detected by the touch panel. The display unit displays an image corresponding to the input device based on the identification information stored in the storage unit.

  In this system, an image corresponding to the input device is displayed based on the identification information stored in the storage unit. As a result, the operator can know the fact based on the display of the touch panel device when the authentication by the input device used by the operator is correctly performed.

  The input device may include a first conductive contact part, a second conductive contact part, an interrupter, and a control part. The first conductive contact portion contacts the surface of the touch panel device. The second conductive contact portion can be touched by a human finger. The interrupter is provided between the first conductive contact portion and the second conductive contact portion. The control unit intermittently operates the interrupter in a predetermined pattern.

  In this system, when the control unit intermittently operates the interrupter in a predetermined pattern, the first conductive contact unit and the second conductive contact unit repeat communication and disconnection. Thereby, the identification information which consists of the change of the electrostatic capacitance of a predetermined pattern is detected by the touch panel device.

  The first conductive contact portion may have an elastically deformable member.

  In this system, since the first conductive contact portion entirely contacts the surface of the touch panel device, the identification information is stably input to the touch panel device.

  The interrupter may further include a switch that causes the control unit to be in an operating state when the first conductive contact unit is pressed by a reaction force from the surface of the touch panel device.

  In this system, when the operator presses the input device against the surface of the touch panel device, the switch causes the control unit to be in an operating state, and as a result, identification information is input from the input device to the touch panel device. That is, the communication between the input device and the touch panel device is stably performed by maintaining the state where the operator presses the input device against the touch panel device.

  The input device accommodates the interrupter, is arranged with the first conductive contact portion exposed at the tip, and is arranged with the second conductive contact portion exposed at a position where the operator's finger contacts. It may further have a housing.

  In this system, since the finger contacts the second conductive contact portion when the operator holds the casing, the operator uses the input device without being conscious of touching the second conductive contact portion. Identification information can be input to the touch panel device.

  An input device according to another aspect of the present invention is an input device capable of inputting identification information including a change in capacitance to a capacitive touch panel device. The input device includes a first conductive contact portion, a second conductive contact portion, an interrupter, and a control unit. The first conductive contact portion contacts the surface of the touch panel device. The second conductive contact portion is provided between the first conductive contact portion and the second conductive contact portion, and the interrupter capable of being touched by a human finger is provided. The control unit intermittently operates the interrupter in a predetermined pattern.

  An authentication program according to still another aspect of the present invention authenticates identification information including a change in capacitance in a capacitive touch panel device, and causes a computer to execute a method including the following steps.

◎ Step of detecting the identification information when the identification information is inputted ◎ Step of measuring the touchdown or touch-up time interval from the identification information ◎ Step of comparing the measurement result with the authentication data ◎ Step of informing the verification result

  In the authentication system according to the present invention, authentication can be performed by a simple operation in a capacitive touch panel device.

The block diagram which shows schematic structure of an authentication system. The perspective view of an electronic seal stamp. The exploded perspective view of an electronic seal stamp. The schematic sectional drawing of an electronic seal stamp. The schematic diagram which shows the operating principle of a switching relay. The schematic diagram which shows the operating principle of a switching relay. The operation | movement flowchart of an electronic seal stamp. The operation | movement flowchart of a tablet-type computer. The graph which shows the identification information by a 1st type electronic seal stamp. The graph which shows the identification information by a 2nd type electronic seal stamp. The top view of the tablet computer in an electronic seal stamp acceptance state. The top view of the tablet-type computer in an approval disapproval display state.

(1) Basic Configuration of Authentication System An authentication system 1 as an embodiment of the present invention will be described using FIG. FIG. 1 is a block diagram showing a schematic configuration of the authentication system.

  The authentication system 1 includes a tablet computer 3 and an electronic seal stamp 5. The electronic seal stamp 5 is an authenticator that can input identification information consisting of a change in capacitance to the tablet computer 3. The tablet computer 3 authenticates the input identification information.

(2) Tablet Computer The tablet computer 3 mainly has a touch panel 7, a display 9, and a control unit 11. The touch panel 7 is a capacitive touch panel. The display 9 is a liquid crystal display, for example.

  When a signal is input to the touch panel 7, the control unit 11 performs information processing based on the signal and further causes the display 9 to perform various displays. The control unit 11 is a computer that includes a CPU, a RAM, a ROM, and the like and executes a program. The authentication unit 13, the display control unit 15, the input data storage unit 17, the authentication data storage unit 19, the timer unit 21, and the display data storage Part 23. The input data storage unit 17 stores identification information input from the electronic seal stamp 5. In the authentication data storage unit 19, authentication data to be authenticated by the authentication unit 13 is stored in advance. The authentication data is data corresponding to the identification information. The timer unit 21 is generated as necessary, and measures the time interval between touchdown and touchup. In the display data storage unit 23, display data corresponding to the authentication data and display data indicating that approval is not possible are stored in advance. In this embodiment, the display data corresponding to the authentication data is a seal image.

  The authentication unit 13 stores the identification information detected by the touch panel 7 in the input data storage unit 17, and then collates the input data stored in the input data storage unit 17 with the authentication data stored in the authentication data storage unit 19. To do. The authentication unit 13 notifies the display control unit 15 when there is authentication data corresponding to the input data, and notifies the display control unit 15 when there is no authentication data corresponding to the input data. The authentication unit 13 also has a function of detecting the stamping position, that is, the coordinate position of the electronic seal stamp 5.

  The display control unit 15 displays the display data stored in the display data storage unit 23 on the display 9 in accordance with an instruction from the authentication unit 13.

(3) Electronic seal stamp The structure and operation | movement of the electronic seal stamp 5 are demonstrated using FIGS. 2 is a perspective view of the electronic seal stamp, FIG. 3 is an exploded perspective view of the electronic seal stamp, FIG. 4 is a schematic cross-sectional view of the electronic seal stamp, and FIGS. 5 and 6 are schematic diagrams showing the operation principle of the switching relay. It is.

  The electronic seal stamp 5 is a conductive member that functions as an extension of a human finger with respect to the touch panel 7, and is a device that causes a change in capacitance on the surface of the touch panel 7 by a plurality of electrical interruptions. In other words, the electronic seal stamp 5 inputs the identification information for each electronic seal stamp 5 to the touch panel by performing the same predetermined operation that a human finger touches or leaves the touch panel. In addition, in order to function as a seal, identification information differs for every electronic seal 5.

  More specifically, the electronic seal stamp 5 includes a housing 25, a microcomputer control unit 27, a battery 29, a conductive sponge 31, a pedestal 33, a copper foil tape 35, a sponge 37, a tact switch 39, The switching relay 41, the copper nail 43, the first conductive wire 45, and the second conductive wire 47 are included. 2 to 4, the left side of the drawing is a first side, and the right side of the drawing is a second side.

  The housing 25 is a member that extends in one direction and constitutes the appearance of the electronic seal stamp 5. The housing | casing 25 consists of nonelectroconductive materials, such as a plastics, for example. As shown in FIGS. 2 to 4, the housing 25 includes an upper cover 25 </ b> A, a lower cover 25 </ b> B, and a bottom cover 25 </ b> C. The housing 25 has an open end 25a on the first side, and the conductive sponge 31 is disposed on the open end 25a.

  The microcomputer control unit 27 is a computer that includes a CPU, a RAM, a ROM, and the like and executes a program. As shown in FIGS. 5 and 6, the microcomputer control unit 27 includes an identification information storage unit 27 a that stores unique identification information related to the electronic seal stamp, and an information transmission unit 27 b that transmits the identification information. The identification information is a pattern composed of a predetermined on / off combination.

  The conductive sponge 31 is a member that contacts the touch panel 7 of the tablet computer 3. The conductive sponge 31 has a flat main surface and has conductivity and flexibility. By having flexibility, the conductive sponge 31 is entirely in contact with the surface of the tablet computer 3, so that identification information is stably input to the tablet computer 3.

  The pedestal 33 is a member for receiving the conductive sponge 31 and is made of a nonconductive material such as plastic. The conductive sponge 31 is fixed to the first side surface of the pedestal 33. The pedestal 33 has a flange 33a, which restricts the protrusion of the housing 25 from the open end 25a.

  The copper foil tape 35 extends over the first side surface and the second side surface of the pedestal 33, and one end thereof is connected to the conductive sponge 31.

  The sponge 37 is disposed on the second side of the pedestal 33. The sponge 37 is made of a non-conductive material.

  The tact switch 39 is disposed on the second side of the sponge 37. The tact switch 39 connects the battery 29 and the microcomputer control unit 27 when a predetermined load is applied from the sponge 37. Then, power supply from the battery 29 to the microcomputer control unit 27 is started. The tact switch 39 shuts off the battery 29 and the microcomputer control unit 27 when a predetermined load is removed from the sponge 37. Then, power supply from the battery 29 to the microcomputer control unit 27 is stopped.

  The switching relay 41 is disposed on the second side of the tact switch 39 in terms of mechanical structure. The switching relay 41 is electrically disposed between the copper foil tape 35 (that is, the conductive sponge 31) and the copper nail 43 (described later).

  The first conductive wire 45 electrically connects the copper foil tape 35 and the switching relay 41.

  The second conductive wire 47 electrically connects the switching relay 41 and the copper nail 43.

  The copper nail 43 is provided in a holed recess 25D provided in the upper cover 25A of the housing 25, and is arranged with its head exposed. Therefore, when the operator holds the casing 25, the finger naturally contacts the head of the copper nail 43. That is, the operator can input the identification information to the tablet computer 3 using the electronic seal stamp 5 without being conscious of touching the copper nail 43.

  The structure and operation of the switching relay 41 will be described with reference to FIGS.

  The switching relay 41 is a device that repeatedly turns on and off in a predetermined pattern by driving from the information transmission unit 27 b of the microcomputer control unit 27. The switching relay 41 mainly has a magnetic iron 51, an iron piece 53, a contact piece 55, and an operation coil 57. The magnetic iron 51 has an iron core 51a and a support portion 51b. A part of the operation coil 57 is wound around the iron core 51a. The support part 51b supports the iron piece 53 in a swingable manner. One end of the iron piece 53 is swingably supported on the upper end of the support portion 51b, and the other end can be separated and approached to the upper end of the iron core 51a. The contact piece 55 is provided on the iron piece 53, one end is fixed to the iron piece 53, and the other end further extends from the iron piece 53. The contact piece 55 is electrically connected to the second conductive wire 47. The contact piece 55 is electrically connected to and separated from the first conductive wire 45 by the movement of the iron piece 53. The operation coil 57 is partially wound around the iron core 51 a and both ends are connected to the microcomputer control unit 27.

  The microcomputer control unit 27 operates based on the power supplied from the battery 29. The microcomputer control unit 27 performs control to cause the switching relay 41 to intermittently operate in a predetermined pattern. More specifically, the information transmission unit 27b receives data specific to the seal stamp from the identification information storage unit 27a, and repeats supply and interruption of current to the operation coil 57 in accordance with the data pattern. Thereby, the switching relay 41 performs intermittent operation.

  In FIG. 5, the switching relay 41 is in a disconnected state. Therefore, even if the operator's finger touches the copper nail 43 and the conductive sponge 31 is in contact with the touch panel 7, the electronic seal stamp 5 The finger is separated from the touch panel 7 (touch-up). In FIG. 6, the switching relay 41 is in a connected state. Therefore, if the operator's finger touches the copper nail 43 and the conductive sponge 31 is in contact with the touch panel 7, the electronic seal stamp 5 is a human being. As a finger, a state of touching the touch panel 7 (touch down) is realized.

  As described above, when the switching relay 41 is intermittently connected in a predetermined pattern, identification information including a change in electrostatic capacitance of the predetermined pattern is input to the tablet computer 3.

  The operation of the electronic seal stamp 5 described above is summarized as follows. When the operator presses the electronic seal stamp 5 against the surface of the tablet computer 3, the conductive sponge 31 is pressed by the reaction force from the surface of the tablet computer 3, and the tact switch 39 is driven. The microcomputer control unit 27 is put into an operation state, and thereby the microcomputer control unit 27 causes the switching relay 41 to perform an intermittent operation. As a result, identification information as a change in capacitance is input to the tablet computer 3.

(4) Authentication control operation (4-1) Overall schematic control operation The outline of the authentication control operation will be described with reference to FIG.

  At the time of the authentication control operation, for example, as shown in FIG. 11, the display 9 of the tablet computer 3 has document information to be approved and a first stamp pressing portion 7 a, which is a portion for pressing the electronic seal stamp. A 2-stamp pressing portion 7b and a third-stamp pressing portion 7c are displayed.

  When the operator presses the electronic seal stamp 5 against the touch panel 7 of the tablet computer 3, the tact switch 39 is turned on, and power is supplied from the battery 29 to the microcomputer control unit 27. Thereby, the microcomputer control unit 27 repeats power on and power off for the switching relay 41. When the power is turned on, the switching relay 41 enters a communication state, and as a result, touchdown is input to the touch panel 7. When the power is turned off, the switching relay 41 is cut off, and as a result, touch-up is input to the touch panel 7.

  When touchdown or touchup is input, the timer unit 21 starts time measurement. At this time, the display control unit 15 causes the display 9 to display a display indicating that reception is in progress.

  The authentication unit 13 stores the touch-down or touch-up time interval in the input data storage unit 17 based on the information from the timer unit 21.

  The above steps are repeated until a touch-up of 400 ms or longer is detected. Next, the authentication unit 13 determines whether or not authentication data matching the input data stored in the input data storage unit 17 exists in the authentication data storage unit 19, and further the input data is pressed against the electronic seal stamp 5. It is checked whether it corresponds to the given location correctly. By this collation work, it is determined whether or not the used electronic seal stamp 5 is correct. When the used electronic seal stamp 5 is correct, the display control unit 15 takes out the seal image corresponding to the used electronic seal stamp 5 from the display data storage unit 23 and displays it on the display 9.

(4-2) Control Operation of Electronic Seal Stamp The control of the electronic seal stamp 5 will be described with reference to FIG. FIG. 7 is an operation flowchart of the electronic seal stamp. In the following description, the microcomputer control unit 27 (that is, the information transmission unit 27b) of the electronic seal stamp 5 is mainly the operation subject.

  In step S1, the tact switch 39 is turned on by pressing the electronic seal stamp 5 on the touch panel 7. Thereby, electric power is supplied from the battery 29 to the microcomputer control unit 27. Thereby, in steps S2 to S8, the microcomputer control unit 27 starts transmitting a control signal including a predetermined power on / off combination to the switching relay 41.

  In step S2, the microcomputer control unit 27 turns on the switching relay 41.

  In step S3, the microcomputer control unit 27 maintains the switching relay 41 in the on state for a predetermined time.

  In step S4, the microcomputer control unit 27 turns off the switching relay 41.

  In step S5, the microcomputer control unit 27 maintains the switching relay 41 in the off state for a predetermined time.

  In step S6, the microcomputer control unit 27 determines whether data transmission is completed. If the data transmission is not complete, the process returns to step S2. If the data transmission is completed, the process proceeds to step S7.

  In step S7, the microcomputer control unit 27 maintains the switching relay 41 in the off state for 400 ms that is the transmission completion interval. When step S8 ends, the process returns to step S1, and then waits for the electronic seal stamp 5 to be pressed on the touch panel 7.

(4-3) Control Operation of Tablet Computer 3 Control of the tablet computer 3 will be described with reference to FIG. FIG. 8 is an operation flowchart of the tablet computer. In the following description, the control unit 11 of the tablet computer 3 is mainly the operation subject.

  In step S11, the timer unit 21 becomes operable.

  In step S <b> 12, the authentication unit 13 waits for a touchdown or touchup input to the touch panel 7 to be received.

  In step S <b> 13, the authentication unit 13 stores the touchdown or touchup time interval in the first array of the input data storage unit 17.

  In step S <b> 14, the authentication unit 13 resets the value of the timer unit 21.

  In step S15, the authentication unit 13 determines whether or not the latest touchdown or touchup time interval stored in the first array of the input data storage unit 17 is around 400 ms. If it is around 400 ms, the process proceeds to step S16. If not near 400 ms, the process returns to step S12 and waits for the next touchdown or touchup to be input.

  In step S <b> 16, the authentication unit 13 relates to a series of touch-down or touch-up time intervals stored in the first array of the input data storage unit 17, and those in the vicinity of 200 ms are stored in the second array of the input data storage unit 17. “1” is stored, and “0” is stored in the second array of the input data storage unit 17 in the vicinity of 100 ms. As a result, the pattern of change in electrostatic quantity generated by the electronic seal stamp 5 is stored in the input data storage unit 17 as an array pattern of 1 and 0.

  The relationship between touchdown and touchup patterns and interpretation on the receiving side will be described with reference to FIGS. 9 and 10. FIG. 9 is a graph showing identification information by the first type electronic seal stamp, and FIG. 10 is a graph showing identification information by the second type electronic seal stamp.

  The predetermined pattern of the electronic seal stamp 5 shown in FIG. 9 is as follows: grounding 0.1 seconds-non-grounding 0.1 seconds-grounding 0.2 seconds-non-grounding 0.2 seconds-grounding 0.1 seconds-non-grounding 0. 4 seconds repeat. As a result, “00110” is stored in the input data storage unit 17 of the tablet computer 3. The non-grounding 0.4 seconds is interpreted by the tablet computer 3 as an end signal.

  The predetermined pattern of the electronic seal stamp 5 shown in FIG. 10 is as follows: grounding 0.2 seconds-non-grounding 0.2 seconds-grounding 0.1 seconds-non-grounding 0.1 seconds-grounding 0.1 seconds-non-grounding 0. 4 seconds repeat. As a result, “11000” is stored in the input data storage unit 17 of the tablet computer 3. The non-grounding 0.4 seconds is interpreted by the tablet computer 3 as an end signal.

  In this embodiment, by controlling the switching relay with a microcomputer, touch-up and touch-down constituting a specific touch pattern are input to the tablet computer 3 at a speed that cannot be realized by a human finger.

  In particular, even when the tablet computer 3 is set so as to respond only to how a human finger is pressed (position, number, area, pressing force), the electronic seal stamp 5 has the same function as a human finger. By configuring so as to realize, identification information can be input to such a tablet computer 3.

  Further, when the operator presses the electronic seal stamp 5 against the tablet computer 3, the operator can feel the same feeling as when pressing an ordinary seal stamp on the paper, and therefore does not feel resistance to using the electronic seal stamp 5.

  Further, an identification signal is input from the electronic seal stamp 5 to the tablet computer 3 from the moment when the electronic seal stamp 5 is pressed against the tablet computer 3 and a reaction force acts on the electronic seal stamp 5 side from the touch panel 7. That is, by maintaining the state in which the operator presses the electronic seal stamp 5 against the tablet computer 3, communication between the electronic seal stamp 5 and the tablet computer 3 is stably performed.

  In step S <b> 17, the authentication unit 13 determines whether authentication data corresponding to the identification information stored in the input data storage unit 17 is stored in the authentication data storage unit 19, and further, the input data is pressed by the electronic seal stamp 5. Check if it corresponds correctly to the applied part. The case where the input data does not correctly correspond to the place where the electronic seal stamp 5 is pressed is, for example, the case where the section chief mark is pressed at a position where the department head mark should be pressed. If both are Yes, the process moves to step S18. On the other hand, if No, the process proceeds to step S19.

  In step S <b> 18, based on an instruction from the authentication unit 13, the display control unit 15 extracts the seal image data of the corresponding seal from the display data storage unit 23 and displays it on the display 9. For example, as shown in FIG. 11, when the electronic seal stamp 5, which is a Yamamoto seal, is correctly pressed by the first stamp pressing portion 7a, a seal image of “Yamamoto” is displayed on the first stamp pressing portion 7a.

Thus, after authenticating the identification information from the electronic seal stamp 5, the tablet computer 3 displays information specifying the electronic seal stamp 5. That is, for example, information for specifying the electronic seal stamp 5 is displayed on the surface of the tablet computer 3 so that a seal image is reflected when the stamp is pushed onto the paper. As a result, the operator can know the fact based on the operation of the tablet computer 3 when the authentication with his / her electronic seal stamp 5 is correctly performed. Note that the authentication unit 13 adds the seal image. To save the document file.

  In step S <b> 19, the authentication unit 13 causes the display 9 to display “not approved” on the display 9. For example, as shown in FIG. 12, the document cannot be approved is displayed. FIG. 12 is a plan view of the tablet computer in the approval disapproval display state.

(5) Features The above embodiment can be expressed as follows.

  (A) The authentication system 1 includes a tablet computer 3 (an example of a capacitive touch panel device) and an electronic seal stamp 5 (an example of an input device). The electronic seal stamp 5 can input identification information including a change in capacitance to the tablet computer 3. The tablet computer 3 authenticates the input identification information.

  In this system, when the electronic seal stamp 5 inputs identification information comprising a change in capacitance to the tablet computer 3, the tablet computer 3 authenticates the input identification information. Authentication by the tablet computer 3 is possible by such a simple structure and operation.

  (B) After authenticating the identification information from the electronic seal stamp 5, the tablet computer 3 performs different operations for each electronic seal stamp 5.

  In this system, the operator can know the fact based on the operation of the tablet computer 3 when the authentication by the electronic seal stamp 5 used by the operator is correctly performed.

  (C) After authenticating the identification information from the electronic seal stamp 5, the tablet computer 3 displays information specifying the electronic seal stamp 5.

In this system, for example, information for specifying the electronic seal stamp 5 is displayed on the surface of the tablet computer 3 so that a seal image is reflected when the stamp is pushed onto the paper. Thereby, the operator can know that based on the operation of the tablet computer 3 when the electronic seal stamp 5 used by the operator is correctly authenticated.
(D) The tablet computer 3 includes a capacitive touch panel 7, an input data storage unit 17 (an example of a storage unit), and a display 9 (an example of a display unit). The input data storage unit 17 stores identification information detected by the touch panel 7. The display 9 displays an image corresponding to the electronic seal stamp 5 based on the identification information stored in the input data storage unit 17.

In this system, an image corresponding to the electronic seal stamp 5 is displayed based on the identification information stored in the input data storage unit 17. Thereby, the operator can know the fact based on the display of the tablet computer 3 when the authentication by the electronic seal stamp 5 used by the operator is correctly performed.
(E) The electronic seal stamp 5 includes a conductive sponge 31 (an example of a first conductive contact portion), a copper nail 43 (an example of a second conductive contact portion), a switching relay 41 (an example of an interrupter), And a microcomputer control unit 27 (control unit). The conductive sponge 31 contacts the surface of the tablet computer 3. The copper nail 43 can be touched by a human finger. The switching relay 41 is provided between the conductive sponge 31 and the copper nail 43. The control unit causes the switching relay 41 to intermittently operate in a predetermined pattern.

  In this system, when the microcomputer controller 27 intermittently operates the switching relay 41 in a predetermined pattern, the conductive sponge 31 and the copper nail 43 repeat communication and disconnection. Thereby, identification information consisting of a change in capacitance of a predetermined pattern is detected by the tablet computer 3.

  (F) The conductive sponge 31 is an elastically deformable member.

  In this system, since the conductive sponge 31 is entirely in contact with the surface of the tablet computer 3, the identification information is stably input to the tablet computer 3.

  (G) The tact switch 39 (an example of a switch) brings the microcomputer control unit 27 into an operating state when the conductive sponge 31 is pushed by the reaction force from the surface of the tablet computer 3.

  In this system, when the operator presses the electronic seal stamp 5 against the surface of the tablet computer 3, the tact switch 39 brings the microcomputer control unit 27 into an operating state. As a result, the identification information is transferred from the electronic seal stamp 5 to the tablet computer 3. Is entered. That is, by maintaining the state in which the operator presses the electronic seal stamp 5 against the tablet computer 3, communication between the electronic seal stamp 5 and the tablet computer 3 is stably performed.

  (H) The electronic seal stamp 5 accommodates the switching relay 41, is disposed with the conductive sponge 31 exposed at the tip, and is disposed with the copper nail 43 exposed at a position where the operator's finger contacts. The housing 25 is further provided.

  In this system, since the finger contacts the copper nail 43 when the operator holds the casing 25, the operator does not pay much attention to touching the copper nail 43 and uses the electronic seal stamp 5 to identify the identification information. Input to the tablet computer 3 is possible.

(6) Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, a plurality of embodiments and modifications described in this specification can be arbitrarily combined as necessary.

  (A) In the said embodiment, although the contact surface with respect to the touchscreen of an electronic seal stamp was made into conductive sponge, if it is a member which has the softness | flexibility which consists of conductive materials, it may be other than sponge. For example, conductive rubber may be used.

  (B) Although the tact switch detects that the electronic seal stamp has been pressed on the touch panel in the embodiment, it may be detected that the electronic seal stamp has been pressed on the touch panel using other means such as a pressure sensor. .

  (C) In the above embodiment, the authentication system is used for seal stamping, which is an approval operation for electronically recorded documents. However, other authentication operations, for example, use of the apparatus, browsing of documents, entrance of facilities, etc. It may be used for the task of authenticating that there is authority.

  (D) In the above embodiment, the input device is an electronic seal stamp, but it may be a password input device or an identification device.

  (E) In the above-described embodiment, the approver's identification information is a surname, but may include a job title, a code number, and the like. Further, the identification information may be only a code number.

  (F) In the above embodiment, the authentication unit of the tablet computer measures the time interval between the touchdown and the touchup of the identification signal. However, only one time of the touchdown and the touchup is measured. Also good.

  (G) Although the pressing surface of the electronic seal stamp is an unmarked flat surface in the above-described embodiment, the seal stamp may be printed, or a stamp that also functions as a normal seal stamp is printed using vermilion. Good.

  (H) Although only the used electronic seal stamp was authenticated in the said embodiment, you may make it identify the user who actually utilized the electronic seal stamp in addition to the electronic seal stamp. In that case, for example, a fingerprint authentication device is provided in the electronic seal stamp. The fingerprint authentication device detects the fingerprint of the operator holding the electronic seal stamp, and collates the detected data with the stored fingerprint data. Then, the fingerprint authentication device specifies a specific person based on the collation result. The data transmission unit transmits the person specifying data to the outside in addition to the data unique to the seal.

  After authenticating the received data, the tablet computer displays the operator's information (name, title, etc.) together with the seal as necessary.

  (I) Although the tablet computer is adopted as the touch panel device in the above embodiment, the present invention can be applied to other computers.

  The present invention can be widely applied to an authentication system using a capacitive touch panel device.

1 Authentication System 3 Tablet Computer (Touch Panel Device)
5 Electronic seal stamp (input device)
7 Touch panel 9 Display (display part)
11 Control Unit 13 Authentication Unit 15 Display Control Unit 17 Input Data Storage Unit (Storage Unit)
19 Authentication Data Storage Unit 21 Timer Unit 23 Display Data Storage Unit 25 Case 27 Microcomputer Control Unit (Control Unit)
27a Identification information storage unit 27b Information transmission unit 29 Battery 31 Conductive sponge (first conductive contact unit)
33 Pedestal 39 Tact switch (switch)
41 Switching relay (interrupter)
43 Copper nail (second conductive contact part)

JP-A-5-89220

Claims (10)

A capacitive touch panel device;
An input device capable of inputting identification information consisting of a change in capacitance to the touch panel device,
The touch panel device is an authentication system that authenticates the input identification information.   The authentication system according to claim 1, wherein the touch panel device performs a different operation for each input device after authenticating the identification information from the input device.   The authentication system according to claim 2, wherein the touch panel device displays information for specifying the input device after authenticating the identification information from the input device. The touch panel device
A capacitive touch panel,
A storage unit for storing the identification information detected by the touch panel;
The authentication system according to claim 3, further comprising: a display unit that displays an image corresponding to the input device based on the identification information stored in the storage unit. The input device is:
A first conductive contact portion for contacting the surface of the touch panel device;
A second conductive contact that can be contacted by a human finger;
An interrupter provided between the first conductive contact portion and the second conductive contact portion;
5. The authentication system according to claim 1, further comprising: a control unit configured to intermittently operate the interrupter in a predetermined pattern.   The authentication system according to claim 5, wherein the first conductive contact portion includes an elastically deformable member.   The said interrupter further has a switch which makes the said control part an operation state, when the said 1st electroconductive contact part is pushed by the reaction force from the surface of the said touch panel apparatus. Authentication system.   The input device accommodates the interrupter, is arranged with the first conductive contact portion exposed at a tip, and the second conductive contact portion is exposed at a position where an operator's finger contacts. The authentication system according to claim 5, further comprising a housing arranged in a state. An input device capable of inputting identification information consisting of a change in capacitance to a capacitive touch panel device,
A first conductive contact portion for contacting the surface of the touch panel device;
A second conductive contact that can be contacted by a human finger;
An interrupter provided between the first conductive contact portion and the second conductive contact portion;
A controller for intermittently operating the interrupter in a predetermined pattern;
Provided input device. An authentication program for authenticating identification information consisting of a change in capacitance in a capacitive touch panel device,
Detecting the identification information when the identification information is input;
Measuring a time interval of touchdown or touchup from the identification information; and
Checking the measurement result against the authentication data;
An authentication program for causing a computer to execute a method including the step of notifying a verification result.

Images