Mobile communication terminal, code display method, and program for mobile communication terminal

Abstract

The present invention provides a mobile communication terminal, a code display method, and a storage medium which effectively prevent theft of a code. A mobile communication terminal 10 is provided with a receiving unit which receives a code display instruction via an input / output unit 102, and a display control unit which displays a concealed code in cases where a trigger indicating that a code has been read has been detected. A concealing application 103B, which is a program for a mobile communication terminal, causes the mobile communication terminal 10 to function as: a code monitoring unit which senses whether a code has been displayed by monitoring a screen displayed on a touch panel 102A of the input / output unit 102; a concealing unit which conceals a code; and a display control unit which displays a concealed code in cases where a trigger indicating that a code has been read has been detected.

Description

[Technical Field]

[0001] The present invention relates to a portable communication terminal, a code display method, and a storage medium. [Background technology]

[0002] In recent years, a code is displayed on the display screen of a mobile communication terminal such as a smartphone, and this code is read using a code reader installed in a cash register such as a POS (Point of Sales) register at a store or the like to make a payment (see Patent Document 1).In addition, in delivery lockers and product receiving lockers, a code displayed on the display screen of a smartphone is read using a code reader, and after authenticating the code, the locker door is unlocked and the user can receive the product. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-074557 Summary of the Invention [Problem to be solved by the invention]

[0004] As mentioned above, various code readers, such as those found in cash registers like POS registers, parcel delivery lockers, and product receiving lockers, read displayed codes to perform processes such as payment and unlocking locker doors. However, there is a problem in that the codes displayed on the display screen can be secretly photographed by a third party and used fraudulently.

[0005] To address this issue, a technology has been proposed that initially hides the code and then makes it visible by touching two points on the screen with a finger. However, this technology does not effectively prevent voyeurism.

[0006] A primary object of the present invention is to provide a portable communication terminal, a code display method, and a storage medium that effectively prevent unauthorized capture of a code. [Means for solving the problem]

[0007] According to a first aspect of the present invention, there is provided a mobile communication terminal including: a reception unit that receives an instruction to display a code via an input / output unit; and a display control unit that displays the hidden code when a trigger indicating that the code is ready to be read is detected.

[0008] According to a second aspect of the present invention, there is provided a code display method in which a code monitoring unit monitors a screen displayed on a touch panel of an input / output unit to detect whether a code is displayed or not, a hiding unit hides the code if the code is detected, and a display control unit displays the hidden code if it detects a trigger indicating that the mobile communication terminal is in a state where the code can be read.

[0009] According to a third aspect of the present invention, there is provided a computer-readable storage medium that stores a program for a mobile communication terminal that causes the mobile communication terminal to function as a code monitoring unit that monitors a screen displayed on a touch panel of an input / output unit to detect whether a code is displayed or not, a hiding unit that hides the code when the code is detected, and a display control unit that displays the hidden code when a trigger is detected indicating that the code is ready to be read. [Effects of the Invention]

[0010] According to each aspect of the present invention, a mobile communication terminal, a code display method, and a storage medium are provided that effectively prevent unauthorized capture of a code. Note that the effects of the present invention are not limited to those described above. The present invention may achieve other effects instead of or in addition to the effects described above. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing an outline of the configuration of a mobile communication terminal. [Figure 2] FIG. 2 is a flowchart showing an example of the operation of the mobile communication terminal. [Figure 3] FIG. 3 is a diagram showing a specific configuration of the mobile communication terminal of the first embodiment. [Figure 4] FIG. 4 is a flowchart showing the operation of the mobile communication terminal of the first embodiment. [Figure 5] FIG. 5 is a flowchart showing the operation of the mobile communication terminal of the second embodiment. [Figure 6] FIG. 6 is a diagram showing a first example of a non-display screen displayed on the touch panel in the code non-display state. [Figure 7] FIG. 7 is a diagram showing a second example of a non-display screen displayed on the touch panel in the code non-display state. [Figure 8] FIG. 8 is a diagram showing a display screen displayed on the touch panel in the code display state. [Figure 9] FIG. 9 shows a settlement screen displayed on the POS input / output unit of the cash register. [Figure 10] FIG. 10 is a diagram illustrating an example of a hardware configuration of a mobile communication terminal according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] First, an overview of one embodiment will be described. Note that the reference numerals in the drawings are added to each element for convenience as an example to facilitate understanding, and the description of this overview is not intended to be limiting in any way. Furthermore, unless otherwise specified, the blocks shown in each drawing represent functional units, not hardware units. Connection lines between blocks in each drawing include both bidirectional and unidirectional lines. Unidirectional arrows are used to schematically indicate the flow of main signals (data) and do not exclude bidirectionality. Note that in this specification and drawings, elements that can be similarly described may be assigned the same reference numerals to avoid redundant explanation.

[0013] Fig. 1 is a diagram showing an outline of the configuration of a mobile communication terminal 10 disclosed herein. As shown in Fig. 1, the mobile communication terminal 10 disclosed herein includes a reception unit 11 that receives an instruction to display a code via an input / output unit, and a display control unit 12 that displays a hidden code when a trigger indicating that the code is ready to be read is detected.

[0014] Fig. 2 is a flowchart showing an example of the operation of the mobile communication terminal 10. As shown in Fig. 2, the mobile communication terminal 10 receives an instruction to display a code via the input / output unit (step 01). When the mobile communication terminal 10 detects a trigger indicating that the code can be read, it displays the hidden code (step 02).

[0015] The mobile communication terminal 10 does not continuously display a code used for payment or the like, but instead displays an invisible code in response to detecting a trigger indicating that the code is ready to be read. Therefore, there is virtually no time for a third party to secretly photograph the code. Therefore, according to the present disclosure, the secret photographing of the code is effectively prevented.

[0016] A mobile communication terminal, a program for the mobile communication terminal, an operating system program for the mobile communication terminal, and a code display method that effectively prevent unauthorized capture of codes according to one embodiment of the present invention will be described in detail below. Note that while the following description will use a cash register as an example of a code reader, the code reader also includes all devices that operate by reading codes displayed on the mobile communication terminal 10, such as cash registers, delivery lockers, product pickup lockers, and coin laundry washer-dryers.

[0017] First Embodiment (Configuration of mobile communication terminal) 3 is a diagram showing a specific configuration of mobile communication terminal 10 according to the present embodiment. A so-called smartphone can be used as mobile communication terminal 10. As shown in FIG. 3, mobile communication terminal 10 includes control unit 101, input / output unit 102, storage unit 103, detection unit 104, and communication unit 105.

[0018] The control unit 101 includes a calculation device such as a CPU (Central Processing Unit).

[0019] The input / output unit 102 includes a touch panel 102A for input and display by touch, an imaging unit 102B equipped with an imaging device such as a camera and a light, a sound collection unit 102C equipped with a sound collection device such as a microphone, and a vibration unit 102D equipped with a vibration device such as a vibrator.

[0020] The storage unit 103 includes a storage device such as a nonvolatile storage device, such as a read only memory (ROM), a random access memory (RAM), or a flash memory.

[0021] Storage unit 103 stores an OS (Operating System) 103A, which is a so-called operating system program, a non-display application 103B, which is a program for a mobile communication terminal, and a general application 103C.

[0022] The OS 103A controls the operation of each device of the mobile communication terminal 10, and instructs and monitors the execution and stopping of each application.

[0023] Hiding application 103B monitors the contents of the screen displayed on touch panel 102A, and when a code such as a barcode or two-dimensional code is displayed, hides the code.

[0024] General application 103C displays a code on touch panel 102A when making a payment or the like.

[0025] The control unit 101 reads out the OS 103A from the storage unit 103 and executes it in sequence, and also operates each device under the supervision of the OS 103A, and reads out and executes each application in sequence.

[0026] The detection unit 104 includes an attitude detection unit 104A that includes a device such as a gyro sensor that detects the attitude of the mobile communication terminal 10, and an illuminance detection unit 104B that includes a photoelectric element that detects brightness and outputs a signal.

[0027] The communication unit 105 includes a mobile phone line communication unit 105A that communicates via a mobile phone line, a wireless LAN communication unit 105B that communicates via a wireless LAN (local area network), and a short-range communication unit 105C that performs short-range communication using Bluetooth (registered trademark) or the like. The communication unit 105 communicates with a cash register such as a POS register via the short-range communication unit 105C.

[0028] The cash register 20 may be a so-called POS register or a cash register using a so-called tablet terminal. The following description will be given taking the cash register 20 using a tablet terminal as an example.

[0029] The cash register 20 includes a POS control unit 201 , a POS input / output unit 202 , a POS storage unit 203 , a POS communication unit 204 , a code reader 205 , and a hand scanner 206 .

[0030] The POS control unit 201 includes a processing unit such as a CPU.

[0031] The POS input / output unit 202 includes input / output devices such as a touch panel, a camera, and a microphone.

[0032] The POS storage unit 203 stores an operation system program as well as a payment application that performs cash registration and payment.

[0033] The POS control unit 201 reads out the operation system and executes it in sequence, and also operates each device under the supervision of the operation system, reading out each application in sequence and executing it.

[0034] The POS communication unit 204 includes a short-range communication device that performs short-range communication such as Bluetooth (registered trademark).

[0035] The code reader 205 irradiates the code with a laser beam, reads the code from the reflected light, converts it into an electrical signal, and outputs it.

[0036] The hand scanner 206 is a portable device that irradiates a code with a laser beam, reads the code from the reflected light, converts it into an electrical signal, and outputs it.

[0037] (Mobile communication terminal operation) 4 is a flowchart showing the operation of the mobile communication terminal 10 of this embodiment. As shown in Fig. 4, in step 301, the control unit 101 causes the reception unit 11 to input a code display instruction from the touch panel 102A to the general application 103C.

[0038] In step 302, control unit 101 monitors the screen displayed on touch panel 102A by hiding application 103B. If control unit 101 determines that a code is to be displayed on touch panel 102A, it hides the code.

[0039] The control unit 101 causes the display control unit 12 to hide the code by one of the following methods. (1) Delete the displayed code from the screen. (2) A mask image that makes the code invisible is displayed at the location where the code is displayed.

[0040] In step 303, the control unit 101 determines whether there is a trigger for displaying the code by the hiding application 103B. If the control unit 101 determines that there is a trigger (Y in step 303), the process proceeds to step 304, and if the control unit 101 does not determine that there is a trigger (N in step 303), the process returns to step 303.

[0041] Here, the trigger will be explained. The trigger refers to the state of the mobile communication terminal 10 in which the mobile communication terminal 10 is in a state where a code can be read.

[0042] The trigger may be, for example, any of the following conditions: (1) When the control unit 101 detects, via the orientation detection unit 104A, that the touch panel 102A of the mobile communication terminal 10 faces downward. (2) When control unit 101 detects laser light emitted from code reader 205 or hand scanner 206 using imaging unit 102B, control unit 101 determines whether the laser light is emitted from code reader 205 or hand scanner 206 based on the color and light intensity using imaging unit 102B. (3) When the control unit 101 detects via the illuminance detection unit 104B that the touch panel 102A of the mobile communication terminal 10 has been brought close to the code reader 205 or the hand scanner 206. The control unit 101 determines that the touch panel 102A of the mobile communication terminal 10 has been brought close to the code reader 205 or the hand scanner 206 when the illuminance detected by the illuminance detection unit 104B becomes darker than a threshold value. (4) When the control unit 101 detects that the sound collection unit 102C has generated a predetermined sound, such as a "beep" sound, which is a sound signal indicating that code reading is about to begin, or a sound saying "Starting code reading."

[0043] In step 304, the control unit 101 displays the code. If the code has been deleted, the control unit 101 displays the deleted code, and if a mask image has been displayed, the control unit 101 deletes the mask image from the screen.

[0044] At this time, control unit 101 may vibrate mobile communication terminal 10 using vibration unit 102D or turn on the light of imaging unit 102B. Alternatively, control unit 101 may notify the user that the code has been displayed by generating a sound such as a beep from a speaker provided in mobile communication terminal 10, so that the user can confirm that the code has been displayed without having to check the screen.

[0045] In step 305, the control unit 101 determines whether the trigger has disappeared. If the control unit 101 determines that the trigger has disappeared (Y in step 305), the process proceeds to step 306, and if the control unit 101 does not determine that the trigger has disappeared (N in step 305), the process returns to step 305.

[0046] Here, the trigger being lost refers to a state in which the control unit 101 is no longer able to detect the trigger.

[0047] In step 306, the control unit 101 makes the code invisible again.

[0048] In step 307, the control unit 101 determines whether an end instruction has been input to the general application 103C. If the control unit 101 determines that an end instruction has been input (Y in step 307), it ends the processing of the general application 103C, and if the control unit 101 does not determine that an end instruction has been input (N in step 307), it returns to step 303.

[0049] As described above, the mobile communication terminal 10 of the first embodiment includes a reception unit 11 that receives an instruction to display a code via the input / output unit 102, and a display control unit 12 that displays a hidden code when a trigger indicating that the code is ready to be read is detected.

[0050] Furthermore, the hiding application 103B, which is a program for a mobile communication terminal according to this embodiment, causes the mobile communication terminal 10 to function as a code monitoring unit, a hiding unit, and a display control unit. The code monitoring unit monitors the screen displayed on the touch panel 102A of the input / output unit 102 to detect whether a code is displayed. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code is ready to be read is detected.

[0051] Furthermore, in the code display method of this embodiment, the code monitoring unit monitors the screen displayed on the touch panel 102A of the input / output unit 102 to detect whether a code is displayed. If a code is detected, the hiding unit hides the code. If the display control unit detects a trigger indicating that the mobile communication terminal 10 is in a state where a code can be read, the display control unit displays the hidden code.

[0052] As described above, the mobile communication terminal 10 according to the first embodiment does not continue to display a code used for payment or the like, but instead displays a code that was previously hidden in response to detecting a trigger indicating that the code is ready to be read. Therefore, there is virtually no time during which a third party can secretly photograph the code. Therefore, the first embodiment has the effect of providing a mobile communication terminal that effectively prevents the code from being secretly photographed.

[0053] <Second embodiment> (Configuration of mobile communication terminal) The configuration of the mobile communication terminal 10 of the second embodiment is similar to the configuration of the mobile communication terminal 10 of the first embodiment, and therefore, a description thereof will be omitted.

[0054] (Mobile communication terminal operation) 5 is a flowchart showing the operation of the mobile communication terminal 10 of this embodiment. As shown in FIG. 5, in step 401, the control unit 101 inputs a code display instruction to the general application 103C from the touch panel 102A via the reception unit.

[0055] In step 402, control unit 101 monitors the screen displayed on touch panel 102A by hiding application 103B. If control unit 101 determines that a code is to be displayed on touch panel 102A, it hides the code.

[0056] The control unit 101 causes the display control unit 12 to hide the code by one of the following methods. (1) Delete the displayed code from the screen. (2) A mask image that makes the code invisible is displayed at the location where the code is displayed.

[0057] In step 403, if the POS communication unit 204 determines that the mobile communication terminal 10 is within a distance where communication is possible using the short-range communication device, the POS control unit 201 starts communication with the mobile communication terminal 10.

[0058] In step 404 , the control unit 101 starts communication with the cash register 20 in response to a communication request from the cash register 20 .

[0059] In step 405, the POS control unit 201 determines whether a trigger instruction has been issued. If the POS control unit 201 determines that a trigger instruction has been issued (Y in step 405), the process proceeds to step 406, and if the POS control unit 201 does not determine that a trigger instruction has been issued (N in step 405), the process returns to step 405.

[0060] Here, the trigger instruction refers to pressing a code display button 804A (see FIG. 9) displayed on the touch panel of the POS input / output unit 202 to cause the mobile communication terminal 10 to display a code.

[0061] The operator of cash register 20 confirms that the user has set mobile communication terminal 10 to a state in which it can read the code, and then presses code display button 804A. If cash register 20 is provided with a separate user screen, POS control unit 201 can also display a code display button on the user screen. In this case, the user presses the code display button at any time.

[0062] In step 406, the POS control unit 201 transmits a trigger to the mobile communication terminal 10 to cause the mobile communication terminal 10 to display a code.

[0063] In step 407, upon receiving the trigger, the control unit 101 displays the code. If the code has been deleted, the control unit 101 displays the deleted code, and if a mask image has been displayed, the control unit 101 deletes the mask image from the screen.

[0064] In step 408, the POS control unit 201 determines whether a loss instruction has been issued. If the POS control unit 201 determines that a loss instruction has been issued (Y in step 408), the process proceeds to step 409, and if the POS control unit 201 does not determine that a loss instruction has been issued (N in step 408), the process returns to step 408.

[0065] Here, the instruction to erase refers to pressing a code hide button 804B (see FIG. 9) displayed on the touch panel of the POS input / output unit 202, which causes the portable communication terminal 10 to hide the code.

[0066] When the operator of cash register 20 confirms that cash register 20 has completed reading the code, he or she presses code hide button 804B. If cash register 20 is provided with a separate user screen, POS control unit 201 can also display a code hide button on the user screen. In this case, the user presses the code hide button at any time.

[0067] In step 409, the POS control unit 201 transmits a non-display trigger to the mobile communication terminal 10 to cause the mobile communication terminal 10 to not display the code.

[0068] In step 410, upon receiving the hide trigger, the control unit 101 hides the code again.

[0069] In step 411, the control unit 101 terminates communication with the cash register 20.

[0070] In step 412, the POS control unit 201 ends communication with the mobile communication terminal 10.

[0071] As described above, the mobile communication terminal 10 of the second embodiment displays a hidden code in response to a trigger from the cash register 20.

[0072] Furthermore, the hiding application 103B, which is a program for the mobile communication terminal, causes the mobile communication terminal 10 to function as a code monitoring unit, a hiding unit, and a display control unit. The code monitoring unit monitors the screen displayed on the touch panel 102A of the input / output unit 102 to detect whether a code is displayed. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code can be read is received from the cash register 20.

[0073] Therefore, according to the second embodiment, it is possible to reliably read the code into the cash register 20, and it is possible to provide a portable communication terminal that effectively prevents the code from being secretly photographed.

[0074] <Third embodiment> (Configuration of mobile communication terminal) The configuration of the mobile communication terminal 10 of the third embodiment is the same as the configuration of the mobile communication terminal 10 of the first embodiment, except that the hiding application 103B of the mobile communication terminal 10 of the first embodiment is incorporated into the OS 103A.

[0075] (Mobile communication terminal operation) The operation of the mobile communication terminal 10 of this embodiment is the same as that of the mobile communication terminal 10 of the first embodiment, except that the operation of the hiding application 103B is performed by the OS 103A.

[0076] OS103A, which is an operating system program for a mobile communication terminal according to this embodiment, causes mobile communication terminal 10 to function as a reception unit, a code monitoring unit, a hiding unit, and a display control unit. The reception unit receives an instruction to display a code from input / output unit 102. The code monitoring unit monitors the screen displayed on touch panel 102A of input / output unit 102 to detect whether a code is displayed. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code is ready to be read is detected.

[0077] Therefore, according to the third embodiment, it is possible to provide a mobile communication terminal that effectively prevents the code from being secretly photographed, even if the hide application 103B is not activated.

[0078] <Fourth embodiment> (Configuration of mobile communication terminal) The configuration of the mobile communication terminal 10 of the fourth embodiment is the same as the configuration of the mobile communication terminal 10 of the second embodiment, except that the hiding application 103B of the mobile communication terminal 10 of the second embodiment is incorporated into the OS 103A.

[0079] (Mobile communication terminal operation) The operation of the mobile communication terminal 10 of this embodiment is the same as that of the mobile communication terminal 10 of the second embodiment, except that the operation of the hiding application 103B is performed by the OS 103A.

[0080] OS103A, an operating system program for a mobile communication terminal according to this embodiment, causes the mobile communication terminal 10 to function as a reception unit, a code monitoring unit, a hiding unit, and a display control unit. The reception unit receives a code display instruction from the input / output unit 102. The code monitoring unit monitors the screen displayed on the touch panel 102A of the input / output unit 102 to detect whether a code is displayed. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code is ready to be read is received from the cash register 20.

[0081] Therefore, according to this embodiment, it is possible to provide a mobile communication terminal that effectively prevents the code from being secretly photographed, even without starting up the hide application 103B.

[0082] <Fifth embodiment> (Configuration of mobile communication terminal) The configuration of the mobile communication terminal 10 of the fifth embodiment is the same as the configuration of the mobile communication terminal 10 of the first embodiment, except that the hiding application 103B of the mobile communication terminal 10 of the first embodiment is incorporated into the general application 103C.

[0083] (Mobile communication terminal operation) The operation of the mobile communication terminal 10 of this embodiment is the same as that of the mobile communication terminal 10 of the first embodiment, except that the operation of the hide application 103B is performed by the general application 103C.

[0084] General application 103C, which is a program for a mobile communication terminal in this embodiment, causes mobile communication terminal 10 to function as a code monitoring unit, a hiding unit, and a display control unit. The code monitoring unit detects the presence or absence of a code displayed on touch panel 102A of input / output unit 102. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code is ready to be read is detected.

[0085] Therefore, according to the fifth embodiment, it is possible to provide a mobile communication terminal that effectively prevents the code from being secretly photographed, even if the hide application 103B is not activated.

[0086] Sixth Embodiment (Configuration of mobile communication terminal) The configuration of the mobile communication terminal 10 of the sixth embodiment is the same as the configuration of the mobile communication terminal 10 of the second embodiment, except that the hiding application 103B of the mobile communication terminal 10 of the second embodiment is incorporated into the general application 103C.

[0087] (Mobile communication terminal operation) The operation of the mobile communication terminal 10 of this embodiment is the same as that of the mobile communication terminal 10 of the second embodiment, except that the operation of the hide application 103B is performed by the general application 103C.

[0088] General application 103C, which is a program for a mobile communication terminal in this embodiment, causes mobile communication terminal 10 to function as a reception unit, a code monitoring unit, a hiding unit, and a display control unit. The reception unit receives a code display instruction from input / output unit 102. The code monitoring unit detects whether or not a code to be displayed on touch panel 102A of input / output unit 102 is present. The hiding unit hides the code when a code is detected. The display control unit displays the hidden code when a trigger indicating that the code is ready to be read is received from cash register 20.

[0089] Therefore, according to the sixth embodiment, it is possible to provide a mobile communication terminal that effectively prevents the code from being secretly photographed, even if the hide application 103B is not activated.

[0090] <Display screen explanation> Fig. 6 is a diagram showing a first example hidden screen 501 displayed on touch panel 102A in the code hidden state in each embodiment. As shown in Fig. 6, the code has been deleted from first example hidden screen 501, and no code is displayed in area 502. Note that control unit 101 may display a frame line or guide indicating the display position of the code on first example hidden screen 501, as shown by the dashed line in Fig. 6.

[0091] To force the code to be displayed, the user operates the mobile communication terminal 10 to set the consent button 503 to "Yes." When the control unit 101 detects that the consent button is set to "Yes," the control unit 101 displays the code regardless of whether a trigger is present or not.

[0092] 7 is a diagram showing a second example non-display screen 601 displayed on touch panel 102A in the code hidden state in each embodiment. As shown in Fig. 7, in second example non-display screen 601, a mask image 602 is displayed in the display position of the code, making the code invisible.

[0093] To force the code to be displayed, the user operates the mobile communication terminal 10 to set the consent button 503 to "Yes." When the control unit 101 detects that the consent button is set to "Yes," the control unit 101 displays the code regardless of whether a trigger is present or not.

[0094] 8 is a diagram showing a display screen 701 displayed on the touch panel 102A in the code display state in each embodiment. As shown in Fig. 8, when the control unit 101 detects or receives a trigger, and when it determines that the consent button is "Yes," the control unit 101 displays a code 702 on the touch panel 102A.

[0095] 9 is a diagram showing a settlement screen 802 displayed on the POS input / output unit 202 of the tablet 801 of the cash register 20 in the second, fourth, and sixth embodiments. As shown in FIG. 9, when communication with the mobile communication terminal 10 is established, the POS control unit 201 displays a confirmation pop-up 803.

[0096] The confirmation popup 803 includes a code display button 804A for instructing the mobile communication terminal 10 to send a trigger, and a code hide button 804B for instructing the mobile communication terminal 10 to send an instruction to hide the code.

[0097] This has the effect that the operator of the cash register 20 can safely control whether the code on the mobile communication terminal 10 is displayed or hidden. Also, even if the cash register 20 is provided with a separate user screen, the user can safely control whether the code on the mobile communication terminal 10 is displayed or hidden.

[0098] Next, the hardware configuration of each device disclosed in the present application will be described in detail. Fig. 10 is a diagram showing an example of the hardware configuration of the mobile communication terminal 10.

[0099] Mobile communication terminal 10 can be configured by an information processing device (so-called computer), and has the configuration exemplified in Fig. 10. For example, mobile communication terminal 10 has processor 311, memory 312, input / output interface 313, communication interface 314, etc. The components such as processor 311 are connected by an internal bus or the like, and are configured to be able to communicate with each other.

[0100] However, the configuration shown in Fig. 10 is not intended to limit the hardware configuration of mobile communication terminal 10. Mobile communication terminal 10 may include hardware not shown, and may not include input / output interface 313 as necessary. Furthermore, the number of processors 311 and the like included in mobile communication terminal 10 is not intended to be limited to the example shown in Fig. 10, and for example, mobile communication terminal 10 may include multiple processors 311.

[0101] The processor 311 is a programmable device such as a central processing unit (CPU), a micro processing unit (MPU), or a digital signal processor (DSP). Alternatively, the processor 311 may be a device such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). The processor 311 executes various programs including an operating system (OS).

[0102] The memory 312 is a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), a solid state drive (SSD), etc. The memory 312 stores an OS program, application programs, and various data.

[0103] The input / output interface 313 is an interface for a display device and an input device (not shown). The display device is, for example, a liquid crystal display. The input device is, for example, a device that accepts user operations such as a keyboard or a mouse.

[0104] The communication interface 314 is a circuit, module, etc. that communicates with other devices. For example, the communication interface 314 includes a wireless communication circuit, a NIC (Network Interface Card), etc.

[0105] The functions of the mobile communication terminal 10 are realized by various processing modules. The processing modules are realized, for example, by the processor 311 executing a program stored in the memory 312. The program can be recorded on a computer-readable storage medium. The storage medium can be a non-transitory medium such as a semiconductor memory, a hard disk, a magnetic recording medium, or an optical recording medium. That is, the present invention can also be embodied as a computer program product. The program can be downloaded via a network or updated using a storage medium storing the program. The processing modules can also be realized by a semiconductor chip.

[0106] The cash register 20 and the like can also be configured by an information processing device, similar to the mobile communication terminal 10, and the basic hardware configuration is no different from that of the mobile communication terminal 10, so a description thereof will be omitted.

[0107] The mobile communication terminal 10, which is an information processing device, is equipped with a computer, and the functions of the mobile communication terminal 10 can be realized by causing the computer to execute a program. The mobile communication terminal 10 also executes a code display method by the program.

[0108] [Variations] The configuration, operation, etc. of the mobile communication terminal 10 described in the above embodiment are merely examples, and are not intended to limit the configuration, etc. of the mobile communication terminal 10.

[0109] In the above embodiment, the display / non-display control of codes used for payment has been described. However, the codes covered by the present disclosure are not limited to payment codes. For example, the codes may be tickets for admission to sporting events, concerts, or other events.

[0110] In the flow charts (flowcharts, sequence diagrams) used in the above explanation, multiple steps (processes) are described in order, but the execution order of the steps executed in the embodiments is not limited to the order described. In the embodiments, the order of the illustrated steps can be changed to the extent that the content is not affected, such as by executing each process in parallel.

[0111] The above-described embodiments have been described in detail to facilitate understanding of the present disclosure, and it is not intended that all of the above-described configurations are required. Furthermore, when multiple embodiments are described, each embodiment may be used alone or in combination. For example, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment. Furthermore, it is possible to add, delete, or replace part of the configuration of one embodiment with another configuration.

[0112] Some or all of the above embodiments can be described as, but are not limited to, the following supplementary notes. [Appendix 1] a reception unit that receives a code display instruction via an input / output unit; a display control unit that displays the hidden code when detecting a trigger indicating that the code is ready to be read; A mobile communication terminal comprising: [Appendix 2] The trigger is 2. The mobile communication terminal according to claim 1, wherein the state or signal of the mobile communication terminal is detected by the mobile communication terminal. [Appendix 3] The trigger is 3. The mobile communication terminal according to claim 2, wherein the control unit of the mobile communication terminal detects that the touch panel of the mobile communication terminal is facing downwards using an orientation detection unit. [Appendix 4] The trigger is The mobile communication terminal according to claim 2, wherein the control unit of the mobile communication terminal detects laser light emitted from a code reader or hand scanner of a code reading device using an imaging unit. [Appendix 5] The trigger is A mobile communication terminal as described in Appendix 2, in which the control unit of the mobile communication terminal detects through the illuminance detection unit that the touch panel of the mobile communication terminal has been brought close to a code reader or hand scanner of a code reading device. [Appendix 6] The trigger is A mobile communication terminal as described in Appendix 2, in which the control unit of the mobile communication terminal detects that a predetermined sound has been generated by the sound collection unit. [Appendix 7] The trigger is 3. The mobile communication terminal according to claim 2, wherein the control unit of the mobile communication terminal receives a signal from a code reader via a communication unit. [Appendix 8] The display control unit 8. The mobile communication terminal according to claim 2, wherein the code is hidden by deleting the code from the screen. [Appendix 9] The display control unit 8. The mobile communication terminal according to claim 2, wherein the displayed code is made invisible by a mask image. [Appendix 10] The control unit of the mobile communication terminal When the code is visualized, 8. The mobile communication terminal according to claim 2, wherein the notification is given to the user by vibrating the mobile communication terminal using a vibration unit. [Appendix 11] The control unit of the mobile communication terminal When the code is visualized, 8. The mobile communication terminal according to claim 2, wherein the mobile communication terminal notifies the user by turning on a light provided in an imaging unit of the mobile communication terminal. [Appendix 12] The control unit of the mobile communication terminal When the code is visualized, 8. The mobile communication terminal according to claim 2, wherein the mobile communication terminal notifies the user by generating a sound from a speaker provided in the mobile communication terminal. [Appendix 13] The code monitoring unit monitors the screen displayed on the touch panel of the input / output unit to detect whether a code is displayed or not. a non-display unit that, when the code is detected, makes the code non-displayable; A code display method in which a display control unit displays the hidden code when it detects a trigger indicating that the mobile communication terminal is in a state where the code can be read. [Appendix 14] Mobile communication devices, a code monitoring unit that monitors the screen displayed on the touch panel of the input / output unit and detects whether or not a code is displayed; a hiding unit that hides the code when the code is detected; a display control unit that displays the hidden code when detecting a trigger indicating that the code is ready to be read; A computer-readable storage medium storing a program for a mobile communication terminal that causes the mobile communication terminal to function as a

[0113] The disclosures of the above-cited prior art documents are incorporated herein by reference. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Those skilled in the art will understand that these embodiments are merely illustrative and that various modifications are possible without departing from the scope and spirit of the present invention. In other words, the present invention naturally includes various modifications and alterations that may be made by those skilled in the art in accordance with the entire disclosure, including the claims, and the technical concepts thereof. [Explanation of symbols]

[0114] 10 Mobile communication devices 11 Reception 12 Display control unit 20 Cash Register 101 Control section 102 Input / output section 102A Touch Panel 102B Imaging unit 102C Sound collection unit 102D vibration part 103 Storage section 103A OS 103B Hiding App 103C General App 104 Detector 104A Attitude detection unit 104B Illuminance detection unit 105 Communications Department 105A Mobile phone line communication section 105B Wireless LAN Communication Department 105C Near field communication section 201 POS control unit 202 POS input / output section 203 POS storage section 204 POS Communication Department 205 Code Reader 206 Hand Scanner 311 processor 312 memory 313 Input / Output Interface 314 Communication Interface 501 1st example hidden screen 502 areas 503 Agree button 601 Second example hidden screen 602 Mask Images 701 Display screen 702 Code 801 tablets 802 Payment screen 803 Confirmation Popup 804A Code Display Button 804B Code Hide Button

Claims

1. a reception unit that receives a code display instruction via an input / output unit; a display control unit that displays the hidden code when detecting a trigger indicating that the code is ready to be read; Equipped with The display control unit When a trigger instruction indicating that an operator of the code reader has performed an operation to display the code is received from the code reader, the hidden code is displayed; When a disappearance instruction indicating that an operator of the code reader has performed an operation on the code reader to make the code invisible is received from the code reader, the mobile communication terminal makes the displayed code invisible again.

2. The code monitoring unit monitors the screen displayed on the touch panel of the input / output unit to detect whether a code is displayed or not. a non-display unit that, when the code is detected, makes the code non-displayable; A code display method, comprising: a display control unit that displays a hidden code when detecting a trigger indicating that the mobile communication terminal is in a state where the code can be read; The display control unit When a trigger instruction indicating that an operator of the code reader has performed an operation to display the code is received from the code reader, the hidden code is displayed; A code display method in which, when a disappearance instruction indicating that an operator of the code reader has performed an operation on the code reader to make the code invisible is received from the code reader, the displayed code is made invisible again.

3. Mobile communication devices, a code monitoring unit that monitors the screen displayed on the touch panel of the input / output unit and detects whether or not a code is displayed; a hiding unit that hides the code when the code is detected; a display control unit that displays the hidden code when detecting a trigger indicating that the code is ready to be read; A program for a mobile communication terminal that functions as The display control unit When a trigger instruction indicating that an operator of the code reader has performed an operation to display the code is received from the code reader, the hidden code is displayed; A program for a mobile communication terminal that, when receiving a disappearance instruction from the code reader indicating that an operator of the code reader has performed an operation on the code reader to make the code invisible, makes the displayed code invisible again.

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