Electronic equipment and mode control program

Abstract

[Problem] To achieve both high performance of an electronic apparatus and user safety. [Solution] An electronic apparatus comprising a temperature sensor for detecting the temperature of a predetermined location of the electronic apparatus, and a mode control unit which, when the electronic apparatus is used without contacting a human body, turns on a continuation mode which is a mode in which the surface temperature of the electronic apparatus calculated on the basis of the temperature detected by the temperature sensor is permitted to increase to a second upper-limit value higher than a first upper-limit value which is a temperature upper-limit value for a conventional mode.

Description

[Technical Field]

[0001] The present disclosure relates to an electronic device such as a mobile device and a mode control program executed by the electronic device. [Background technology]

[0002] Electronic devices such as mobile devices, including smartphones and tablet computers, are becoming more powerful and versatile, and as a result, the surface temperature of the electronic devices can rise. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-43422 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-74095 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-89039 [Patent Document 4] Japanese Patent Application Laid-Open No. 2014-212594 Summary of the Invention [Problem to be solved by the invention]

[0004] Depending on the function that an electronic device performs, the surface temperature of the electronic device may rise to a temperature that could cause burns to the user. Therefore, to ensure user safety, it is necessary to control (mitigate) the upper limit of the surface temperature of the electronic device to a level that will not cause burns to the user. Typically, this is done by reducing the performance of the electronic device to prevent the surface temperature of the electronic device from exceeding the upper limit.

[0005] In view of the above circumstances, an object of the present disclosure is to achieve both high performance of electronic devices and safety for users. [Means for solving the problem]

[0006] An electronic device according to an embodiment of the present disclosure includes: a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a mode control unit that turns on a sustained mode, which is a mode that allows a surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode, when the electronic device is used without being touched by a human body; and It is equipped with:

[0007] According to this embodiment, when an electronic device is used without contact with the human body, the performance of the electronic device is maintained (not reduced) by allowing the surface temperature of the electronic device to rise to (the upper limit of) the low-temperature burn temperature range (sustained mode), thereby achieving both high performance of the electronic device and safety for the user.

[0008] The electronic device further comprises a cable interface; When a cable is inserted into the cable interface, the mode control unit determines that the electronic device is to be used without being touched by a human body.

[0009] Depending on the function being executed by an electronic device, the surface temperature may rise to a temperature higher than normal. Specific examples of such functions include 5G communication via tethering via a USB cable and real-time display of high-definition video received via an HDMI (registered trademark) cable. These functions may require the electronic device to be used without contact with the human body. When the electronic device is used without contact with the human body and a function is being executed that may cause the surface temperature to rise to a temperature higher than normal, the sustained mode is turned on. This allows for both high performance of the electronic device and user safety.

[0010] The mode control unit outputting a start inquiry message, which is a message for inquiring whether or not to agree to start the sustain mode, triggered by turning on the sustain mode; Once consent is entered, initiating said persistent mode; If consent is not entered, the persistence mode is turned off.

[0011] By obtaining the user's consent when turning on the continuous mode, it is possible to more reliably ensure the safety of the user.

[0012] The mode control unit outputting a continuation inquiry message that is a message for inquiring whether or not to continue the continuation mode when the surface temperature becomes higher than the first upper limit value while the continuation mode is on; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off.

[0013] Obtaining user consent when the surface temperature reaches the lower limit of the low-temperature burn temperature range can ensure user safety. Furthermore, if consent is not entered (including timeout), continuous mode is turned off, ensuring user safety. The surface temperature may fall within the low-temperature burn temperature range before the user notices the continuation inquiry message, preventing the user from unknowingly touching an electronic device and suffering a low-temperature burn.

[0014] The mode control unit When the persistence mode is on, if the surface temperature reaches a specific temperature higher than the first upper limit before the consent is entered, the persistence mode is turned off.

[0015] When the surface temperature reaches a certain temperature, it means that even though the user believes the surface temperature of the electronic device is safe, it suddenly rises to a temperature that can cause low-temperature burns in a short period of contact, making it dangerous to touch the electronic device unknowingly. Therefore, by turning off the continuous mode when the surface temperature reaches a certain temperature, user safety can be ensured.

[0016] The mode control unit If the consent is input to continue the continuous mode, the continuous inquiry message is output periodically while the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off.

[0017] During the period when the surface temperature is within the low-temperature burn temperature range, user safety can be more reliably ensured by informing and educating users about the dangers at effective times and frequently, and obtaining their consent.

[0018] The electronic device further comprises a cable interface; The mode control unit If the consent is entered to continue the sustained mode, during a period in which the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value, periodically determining whether a cable is inserted into the cable interface; If inserted, continue the persistent mode; If not inserted, turn off the persistence mode.

[0019] This is user-friendly as it does not require the user to give consent repeatedly and periodically, and is highly safe as the persistent mode continues only when there is a high possibility that the electronic device will be used without contact with the human body.

[0020] The mode control unit When the sustained mode is on, if the surface temperature becomes higher than the first upper limit value, continue to output a warning icon; When the warning icon is operated, a warning message is output.

[0021] This allows users to be notified and educated about dangers at effective times and frequently, making it possible to more reliably ensure user safety.

[0022] The mode control unit When the sustained mode is on, the warning icon is hidden when the surface temperature falls to or below the first upper limit.

[0023] This will cause the warning icon to continue to be displayed on the home screen while the surface temperature is within the low-temperature burn temperature range, thereby more frequently informing and educating users about the danger and ensuring their safety.

[0024] The mode control unit When the sustain mode is on, an explanatory message that is a message explaining the sustain mode continues to be output until the surface temperature becomes equal to or lower than the first upper limit value.

[0025] This makes it possible to inform and educate users about the potential danger even if the surface temperature does not reach the lower limit of the low-temperature burn temperature range, thereby more reliably ensuring the safety of users.

[0026] The mode control unit When the persistence mode is on, if the surface temperature becomes higher than the second upper limit, the electronic device is restarted and the persistence mode is turned off.

[0027] This makes it possible to more reliably ensure the safety of the user.

[0028] The electronic device is a mobile device.

[0029] Mobile devices are popular, general-purpose devices used by a large number of end users. Most users are unaware that the surface temperature of electronic devices can rise to a temperature high enough to cause low-temperature burns. In other words, most users are unaware of the potential dangers of electronic devices. Therefore, according to this embodiment, when the surface temperature rises to the low-temperature burn temperature range, users are notified and educated about the dangers at effective times and frequently, and their consent is obtained, thereby ensuring user safety more reliably.

[0030] A mode control program according to an embodiment of the present disclosure includes: a control circuit for the electronic device having a temperature sensor for detecting a temperature of a predetermined portion of the electronic device; a mode control unit that turns on a sustained mode, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode, when the electronic device is used without being touched by a human body; Operate as. [Effects of the Invention]

[0031] According to the present disclosure, it is possible to achieve both high performance of electronic devices and safety for users.

[0032] The effects described here are not necessarily limited to those described herein, and may be any of the effects described in this disclosure. [Brief explanation of the drawings]

[0033] [Figure 1] 1 shows a hardware configuration of an electronic device according to a first embodiment of the present disclosure. [Figure 2] 1 shows the functional configuration of an electronic device. [Figure 3] 10 shows the operation flow of the mode control unit. [Figure 4] 10 shows an example of a screen for turning on the continuous mode. [Figure 5]10 shows an example of a screen for turning on the continuous mode. [Figure 6] 10 shows an example of a start inquiry message screen. [Figure 7] 10 shows an example of an explanatory message screen. [Figure 8] 10 shows an example of a screen displaying a warning icon and a warning message. [Figure 9] 10 shows an example of a screen displaying a warning message and a continuing inquiry message. [Figure 10] 10 shows an example of a screen displaying a message indicating that the persistent mode has ended. [Figure 11] 10 shows an example of a screen displaying a message indicating that the persistent mode has ended. [Figure 12] 10 shows an example of an ambient screen with a warning icon and a warning message. [Figure 13] 10 shows the operation flow of the mode control unit when the sustain mode is off. [Figure 14] 10 shows an operation flow of a mode control unit according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0034] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0035] I. First Embodiment

[0036] 1. Hardware configuration of electronic devices

[0037] FIG. 1 shows a hardware configuration of an electronic device according to a first embodiment of the present disclosure.

[0038] The electronic device 10 is typically a mobile device such as a smartphone or a tablet computer. More specifically, the electronic device 10 is a device that is expected to be used in contact with a human body (including contact with the human body via clothing). For example, the electronic device 10 may be used while held in the user's hand or in a pocket of clothing worn by the user (for example, when performing a tethering function).

[0039] The electronic device 10 includes a control circuit 100, a memory device 14, a communication interface 15, an input device 16, an output device 17, a temperature sensor 18, a cable interface 19, and a bus B that interconnects these devices.

[0040] The control circuit 100 is a SoC (System-on-a-chip) including a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, and a RAM (Random Access Memory) 13. The CPU 11 loads an information processing program stored in the ROM 12 into the RAM 13 and executes it. The ROM 12 permanently stores the programs and data executed by the CPU 11. The ROM 12 is an example of a non-transitory computer-readable recording medium. The control circuit 100 further includes a dedicated hardware circuit, a GPU (Graphics Processing Unit), etc. (not shown).

[0041] The storage device 14 includes a large-capacity nonvolatile recording medium such as a solid state drive.

[0042] The input device 16 includes a touch panel, various switches, etc. The input device 16 detects operations from the user and outputs them to the CPU 11. The input device 16 may further include an audio input device such as a microphone.

[0043] The output device 17 includes an LCD or an organic EL display integrated with a touch panel. The output device 17 performs arithmetic processing based on information received from the control circuit 100 and displays the generated image signal on a screen. The output device 17 may further include an audio output device such as a speaker.

[0044] The communication interface 15 is an interface for connecting to a network N such as the Internet.

[0045] The temperature sensor 18 detects the temperature of a predetermined portion of the electronic device 10. Typically, the temperature sensor 18 detects the temperature of a portion that becomes hot. For example, the temperature sensor 18 detects the temperature of the control circuit 100. The temperature sensor 18 may be singular or plural.

[0046] A USB cable, an HDMI (registered trademark) cable, an optical cable, a LAN cable, or a DVI cable is inserted into the cable interface 19. For example, a USB cable is inserted into the cable interface 19, and the electronic device 10 is connected to a personal computer (not shown). The electronic device 10 connects the personal computer connected via a USB cable by tethering to a network N via 5G communication or the like. Furthermore, an HDMI (registered trademark) cable, an optical cable, a LAN cable, or a DVI cable is inserted into the cable interface 19, and the electronic device 10 is connected to a video camera (not shown). The electronic device 10 continues to display video captured by the video camera on the output device 17 (display) in real time.

[0047] 2. Functional configuration of electronic devices

[0048] FIG. 2 shows the functional configuration of the electronic device.

[0049] The control circuit 100 executes a mode control program to operate as a mode control unit 101. The control circuit 100 further operates as a temperature conversion unit .

[0050] The temperature conversion unit 102 acquires the temperature of a predetermined part (for example, the control circuit 100) of the electronic device 10 detected by the temperature sensor 18 regularly (for example, every few seconds) while the electronic device 10 is operating. The temperature conversion unit 102 regularly calculates the surface temperature ST based on the temperature of the acquired predetermined part (that is, converts the temperature of the predetermined part to the surface temperature ST). The temperature conversion unit 102 regularly outputs the calculated surface temperature ST (that is, the estimated surface temperature ST) to the mode control unit 101.

[0051] The mode control unit 101 turns on and off the continuous mode by executing the following operation flow (Figure 3). The "continuous mode" is a mode that allows the surface temperature ST of the electronic device 10 to rise up to the low-temperature burn temperature zone (the upper limit value Tmax). Specifically, when the continuous mode is on, it means controlling (mitigating) the electronic device 10 (the control circuit 100 thereof) so that the upper limit value of the surface temperature ST of the electronic device 10 is below the upper limit value Tmax of the low-temperature burn temperature zone. In other words, when the continuous mode is off, it is in principle impossible for the surface temperature ST to exceed the upper limit value Tmax of the low-temperature burn temperature zone.

[0052] In the following description, the surface temperature ST of the electronic device 10 is divided into three temperature zones (safe temperature zone, low-temperature burn temperature zone, high-temperature burn temperature zone) and referred to. The low-temperature burn temperature zone is the temperature zone that causes low-temperature burns. The safe temperature zone is the temperature zone below the upper limit value Tmin (the first upper limit value) of the safe temperature zone, and it is the temperature zone where the human body cannot get low-temperature burns even if it contacts the surface of the electronic device 10 for a long time. The low-temperature burn temperature zone is higher than the upper limit value Tmin (the first upper limit value) of the safe temperature zone and below the upper limit value Tmax (the second upper limit value), and it is the temperature zone where low-temperature burns may occur if the human body contacts the surface of the electronic device 10 for about 5 to 10 minutes. The high-temperature burn temperature zone is the temperature zone higher than the upper limit value Tmax (the second upper limit value) of the low-temperature burn temperature zone (Tmin < Tmax), and it is the temperature zone where high-temperature burns may occur if the human body contacts the surface of the electronic device 10 for less than 1 minute.

[0053] For example, the upper limit Tmin (first upper limit) of the safety temperature range may be set to a safe temperature range (e.g., 45 to 51°C) at which low-temperature burns will not occur even if the human body comes into contact with the surface of electronic device 10 for approximately 5 to 10 minutes. The upper limit Tmax (second upper limit) of the low-temperature burn temperature range may be set to a temperature range (e.g., 55 to 61°C) at which high-temperature burns may occur if the human body comes into contact with the surface of electronic device 10 for less than 1 minute, which is unacceptable from a safety perspective. The low-temperature burn temperature range may be set based on, for example, ISO 13732-1 "Ergonomics of the thermal environment - Method for assessing human responses to contact with surfaces" and based on the material of the surface of electronic device 10, the duration of human contact, etc.

[0054] Depending on the function executed by the electronic device 10, the surface temperature ST may rise to a temperature higher than normal. Specific examples of such functions include 5G communication via tethering via a USB cable and real-time display of high-definition video received via an HDMI (registered trademark) cable, optical cable, LAN cable, or DVI cable (hereinafter, simply referred to as "HDMI (registered trademark) cable"). According to an example of the 5G communication function via tethering, the electronic device 10 connects a personal computer connected via a USB cable inserted into the cable interface 19 to the network N via 5G communication or the like via tethering. According to an example of the high-definition video reception and display function, the electronic device 10 continuously displays, in real time, video captured by a video camera connected via an HDMI (registered trademark) cable, optical cable, LAN cable, or DVI cable inserted into the cable interface 19 on the output device 17 (display).

[0055] In these functions, there are cases where the electronic device 10 is used without contact with the human body. For example, in the case of the tethering function, the user operates a personal computer and does not come into contact with the electronic device 10. In addition, in the case of high-quality video display, the electronic device 10 is placed in a holder fixed to the video camera, and the display of the electronic device 10 is used as a monitor. In particular, in video production sites, there are cases where a mobile device (electronic device 10) such as a smartphone or tablet computer is connected to a professional high-performance video camera and used as a monitor for multiple staff members to check the shot video.

[0056] On the other hand, mobile electronic devices such as smartphones and tablet computers are general-purpose devices used by a large number of end users. Furthermore, mobile devices are expected to be used in contact with the human body (including contact with the human body through clothing). For example, a mobile device may be held in a user's hand or placed in a user's pocket (e.g., when using a tethering function). Therefore, most users are unaware that the surface temperature of electronic devices can rise to a temperature high enough to cause low-temperature burns. In other words, most users are unaware of the potential dangers of electronic devices. While it may be possible to affix stickers to electronic devices to inform and educate users about the dangers, it is difficult to fully educate all users about the dangers using stickers. For this reason, when an electronic device performs a function that may raise the surface temperature higher than normal, as described above, the upper limit of the surface temperature of the electronic device is typically mitigated to a level that will not cause burns to users (corresponding to the safe temperature range in this embodiment) to ensure the safety of all users. Typically, the performance of the electronic device is reduced (for example, the upper limit of the clock of the control circuit is lowered) to prevent the surface temperature of the electronic device from exceeding the upper limit. As a result, there are cases where the specifications required for the electronic device are not met.

[0057] In consideration of the above circumstances, according to this embodiment, when the electronic device 10 is used without being in contact with the human body, the mode control unit 101 allows the surface temperature ST of the electronic device 10 to rise to (the upper limit of) the low-temperature burn temperature range (sustained mode), thereby maintaining (not reducing) the performance of the electronic device 10. In addition, in order to deal with the possibility that the electronic device 10 will be used by many staff members and the difference in risk awareness among users, when the surface temperature ST rises to the low-temperature burn temperature range, the user is notified and educated about the risk at effective timings and consent is obtained, thereby ensuring the safety of the user more reliably.

[0058] 3. Operation flow of the mode control unit

[0059] (1) Operation flow when setting persistence mode to on

[0060] Fig. 3 shows the operation flow of the mode control unit, Fig. 4 and Fig. 5 show examples of screens for turning on the continuous mode.

[0061] As a prerequisite for operation, the persistent mode is off, and therefore the surface temperature ST of the electronic device 10 is within the safe temperature range. The user operates the touch panel to attempt to turn on the persistent mode. First, the user selects the "persistent mode" menu 201 on the system setting screen 200 to turn on the persistent mode (FIG. 4). This displays the persistent mode setting screen 210. The persistent mode setting screen 210 displays a message 211 explaining the definition of the persistent mode, a message 212 explaining that the persistent mode can only be used while connected via USB tethering or HDMI (registered trademark), and a slide button 213 (FIG. 5). The user operates the slide button 213 to turn on the persistent mode (FIG. 5).

[0062] The mode control unit 101 determines whether a USB cable or an HDMI (registered trademark) cable is inserted into the cable interface 19 (step S101). If a USB cable or an HDMI (registered trademark) cable is not inserted (step S101, NO), the mode control unit 101 determines that the electronic device 10 may be used by touching it with a human body, and does not permit the continuous mode to be turned on. In this case, the mode control unit 101 executes the operation flow (described below) when the continuous mode is off (step S113).

[0063] On the other hand, if a USB cable or an HDMI (registered trademark) cable is inserted (step S101, YES), the mode control unit 101 determines that the electronic device 10 is being used without being touched by a human body, and turns on the sustained mode (step S102).

[0064] As a modification, the mode control unit 101 may omit the determination of whether a USB cable or an HDMI (registered trademark) cable is inserted (step S101). In this case, when the mode control unit 101 detects that the user has turned on the slide button 213 (FIG. 5), it turns on the continuous mode (step S102).

[0065] FIG. 6 shows an example of a start inquiry message screen.

[0066] The mode control unit 101 is triggered by turning on the continuous mode (step S102), and outputs a start inquiry message 214 to the continuous mode setting screen 210 (step S103). The "start inquiry message" is a message for inquiring whether or not the user agrees to start the continuous mode. The user inputs consent by selecting "Agree and turn ON" 215, or selects "Do not agree" 216.

[0067] If consent is not entered (selecting "Do not consent" 216 or timeout) (step S103, NO), the mode control unit 101 turns off the continuous mode (step S112) and executes the operation flow (described later) when the continuous mode is off (step S113).

[0068] (2) Operation flow in the safe temperature range (ST ≦ Tmin)

[0069] On the other hand, when consent is entered (step S103, YES), the mode control unit 101 starts the continuous mode. At this time, the surface temperature ST of the electronic device 10 is included in the safe temperature range.

[0070] FIG. 7 shows an example of the screen of the explanation message.

[0071] The mode control unit 101 outputs an explanation message 301 to the home screen 300 (step S104). The "explanation message" is a message that explains that the continuous mode is on and explains the continuous mode. That is, the "explanation message" is a message that explains that the surface temperature ST of the electronic device 10 may rise to the low-temperature burn temperature range.

[0072] The mode control unit 101 continuously determines (for example, every few seconds) whether the surface temperature ST remains within the safe temperature range or changes to the low-temperature burn temperature range (step S105). When the surface temperature ST is below the upper limit value Tmin of the safe temperature range (that is, within the safe temperature range) (step S105, NO), the explanation message 301 is continuously output to the home screen 300 until the surface temperature ST becomes higher than the upper limit value Tmin of the safe temperature range (step S104).

[0073] (3) Operation flow in the low-temperature burn temperature range (Tmin < ST ≦ Tmax)

[0074] FIG. 8 shows an example of the screen of the warning icon and the warning message.

[0075] On the other hand, if the surface temperature ST becomes higher than the upper limit value Tmin of the safe temperature zone (step S105, YES), the mode control unit 101 outputs a warning icon 311 on the home screen 300 (step S106). When the user operates the warning icon 311, the mode control unit 101 outputs a warning message 312. The "warning message" is a message that warns that the surface temperature ST of the electronic device 10 has risen to the low-temperature burn temperature zone. Note that the mode control unit 101 continues to display the warning icon 311 on the home screen 300 while the surface temperature ST is within the low-temperature burn temperature zone.

[0076] FIG. 9 shows an example of a screen displaying a warning message and a continuing inquiry message.

[0077] If the surface temperature ST becomes higher than the upper limit Tmin of the safe temperature range (step S105, YES), the mode control unit 101 further outputs a warning message 313 (similar to the warning message 312) and a continuation inquiry message 314 to the home screen 300 (step S107). The "continuation inquiry message" is a message for inquiring whether or not to agree to the continuation of the continuous mode. The user inputs consent by selecting "Agree" 315, or selects "Do not agree and turn off" 316.

[0078] If consent is not entered ("Do not agree and turn off" 316 is selected or timeout occurs) (step S107, NO), the mode control unit 101 turns off the continuous mode (step S112) and executes the operation flow (described later) when the continuous mode is off (step S113). The mode control unit 101 terminates functions (USB tethering 5G communication, HDMI (registered trademark) high-definition video display, etc.) that may cause the surface temperature to rise to a temperature higher than normal. The length of the timeout may be set to a time (e.g., about 1 to 5 minutes) that will not cause low-temperature burns even if the human body continues to contact the surface of the electronic device 10 when the temperature of the electronic device 10 is at the upper limit value Tmin of the safe temperature range. An exception may be made in which no timeout occurs when the electronic device 10 is executing a function (USB tethering, etc.) that is expected to be used without the user putting the electronic device 10 in their pocket.

[0079] In addition, if the surface temperature ST reaches a specific temperature higher than the upper limit Tmin of the safety temperature range before consent is input, the mode control unit 101 also turns off the sustained mode (step S112) and executes the operation flow (described below) when the sustained mode is off (step S113). The mode control unit 101 terminates functions (such as USB tethering 5G communication and HDMI (registered trademark) high-definition video display) that may cause the surface temperature to rise to a temperature higher than normal. The "specific temperature" is a temperature that can cause a low-temperature burn with a shorter contact time than the contact time that would cause a low-temperature burn if the human body were to come into contact with the electronic device 10 at a temperature lower limit Tmin. For example, the "specific temperature" is a temperature that is about 3°C higher than the upper limit Tmin of the safety temperature range.

[0080] 10 and 11 show examples of screens displaying a message indicating that the persistent mode has ended.

[0081] When the mode control unit 101 turns off the continuous mode (step S112), it outputs continuous mode end messages 317 and 318 to the home screen 300. The "continuous mode end message" indicates that the continuous mode has been turned off and ended. When the mode control unit 101 ends the tethering communication via the USB cable, it outputs the continuous mode end message 317 indicating this (Figure 10). Even when the continuous mode is turned off, since the surface temperature ST will still be higher than the upper limit value Tmin of the safe temperature range, the warning icon 311 continues to be displayed.

[0082] On the other hand, when consent is input (step S107, YES), the mode control unit 101 continues the continuous mode. At this time, the surface temperature ST of the electronic device 10 is within the low-temperature burn temperature range. When the mode control unit 101 continues the continuous mode after consent is input, during the period when the surface temperature ST is within the low-temperature burn temperature range (Tmin < ST ≤ Tmax) (step S109, right), it periodically (step S108, YES) outputs a continuous inquiry message 314 (step S107). The mode control unit 101 continues the continuous mode when consent is input and turns off the continuous mode when consent is not input. The interval for periodically outputting the continuous inquiry message 314 should be a longer time (for example, about 5 to 10 minutes) than the time (for example, about 1 to 5 minutes) during which no low-temperature burn can occur even if the human body continues to contact the surface of the electronic device 10 when the electronic device 10 is at the upper limit value Tmin of the safe temperature range (step S107). This is because once consent has been input for the continuous inquiry message 314 (step S107, YES), it is tentatively ensured that the user is using the electronic device 10 safely (without contact), so there is little need to obtain consent frequently.

[0083] The mode control unit 101 continuously determines (step S109, similar to step S105) whether the surface temperature ST has changed to the safe temperature range, remained in the low burn temperature range, or changed to the high burn temperature range at regular intervals (e.g., every few seconds). When the surface temperature ST drops below the upper limit value Tmin of the safe temperature range (ST ≤ Tmin), it means that the surface temperature ST has changed from the low burn temperature range to the safe temperature range (step S109, left). Then, the mode control unit 101 makes the warning icon 311 on the home screen 300 non-displayed (clears the display) (step S110). The mode control unit 101 repeats the operations when the surface temperature ST is within the safe temperature range (step S105 and below).

[0084] (4) Operation flow in the high burn temperature range (Tmax < ST)

[0085] If, by any chance, the surface temperature ST of the electronic device 10 exceeds the upper limit value Tmax of the low burn temperature range (Tmax < ST), it means that the surface temperature ST has changed from the low burn temperature range to the high burn temperature range (step S109, middle). Then, the mode control unit 101 restarts the electronic device 10 (step S111), turns off the continuous mode (step S112), and executes the operation flow when the continuous mode is off (described later) (step S113).

[0086] FIG. 12 shows an example of the ambient screen of the warning icon and the warning message.

[0087] By the way, especially during tethering communication, when the surface temperature ST of the electronic device 10 is included in the low burn temperature range, the display may turn off. In that case, the mode control unit 101 always displays the warning icon 411 and the warning message 412 (similar to the warning icon 311 and the warning message 312) on the ambient screen 400 (black background).

[0088] (5) Operation flow when the continuous mode is off (step S113)

[0089] FIG. 13 shows the operation flow of the mode control unit when the sustain mode is off.

[0090] The mode control unit 101 turns off the sustain mode (step S201, similar to step S112). Turning off the sustain mode means that the electronic device 10 (the control circuit 100 thereof) is controlled (mitigated) so that the upper limit value of the surface temperature ST of the electronic device 10 is equal to or lower than the upper limit value Tmin (first upper limit value) of the safety temperature range. In other words, when the sustain mode is off, it is, in principle, impossible for the surface temperature ST to become higher than the upper limit value Tmin of the safety temperature range.

[0091] The mode control unit 101 periodically (for example, every few seconds) continues to determine whether the surface temperature ST is in the safe temperature zone, the low temperature burn temperature zone, or the high temperature burn temperature zone (step S202, similar to step S109). When the surface temperature ST is within the safe temperature zone, the mode control unit 101 does not execute any special processing (step S202, left).

[0092] If the surface temperature ST exceeds the upper limit Tmin of the safety temperature zone (step S202, center), the mode control unit 101 outputs a warning icon 311 on the home screen 300 (step S203). Also, if the surface temperature ST exceeds the upper limit Tmax of the low-temperature burn temperature zone (i.e., the high-temperature burn temperature zone) (step S202, right), the mode control unit 101 restarts the electronic device (step S204).

[0093] II. Second Embodiment

[0094] Hereinafter, explanations and illustrations of components and operations similar to those already explained will be omitted, and differences will be mainly explained and illustrated.

[0095] FIG. 14 shows the operation flow of the mode control unit according to the second embodiment.

[0096] The operations from step S101 to step S103 are the same as those in the first embodiment (step S101 to step S103 in FIG. 3).

[0097] When consent to start the sustain mode is input (step S103, YES), the mode control unit 101 periodically determines whether a USB cable or an HDMI (registered trademark) cable is inserted into the cable interface 19 (step S115) while the surface temperature ST is within the safe temperature range (step S105, NO). If a USB cable or an HDMI (registered trademark) cable is inserted, the mode control unit 101 determines that the electronic device 10 is being used without being touched by a human body, and starts the sustain mode (step S115, YES).

[0098] On the other hand, if a USB cable or an HDMI (registered trademark) cable is not inserted (step S115, NO), the mode control unit 101 determines that there is a possibility that the electronic device 10 will be used by touching it with a human body, turns off the continuous mode (step S112), and executes the operation flow when the continuous mode is off (step S113).

[0099] The operations from step S104 to step S107 are the same as those in the first embodiment (step S104 to step S107 in FIG. 3).

[0100] If consent to continuing the continuous mode is input (step S107, YES) and the continuous mode is continued, mode control unit 101 periodically determines whether a USB cable or an HDMI (registered trademark) cable is inserted into cable interface 19 (step S114) during the period when surface temperature ST is within the low-temperature burn temperature range (step S109, left). If a USB cable or an HDMI (registered trademark) cable is inserted, mode control unit 101 determines that electronic device 10 is being used without touching the human body, and continues the continuous mode (step S114, YES).

[0101] On the other hand, if a USB cable or an HDMI (registered trademark) cable is not inserted (step S114, NO), the mode control unit 101 determines that there is a possibility that the electronic device 10 will be used by touching it with a human body, turns off the continuous mode (step S112), and executes the operation flow when the continuous mode is off (step S113).

[0102] As described above, according to the second embodiment, unlike the first embodiment, the continuation inquiry message 314 is not output periodically (step S107) (step S108, YES). Instead, it is periodically determined whether a USB cable or an HDMI (registered trademark) cable is inserted into the cable interface 19 (steps S115 and S114), and if not inserted, the continuous mode is turned off (step S112). Therefore, according to the second embodiment, the user is not required to provide consent repeatedly and periodically, which is user-friendly, and the continuous mode is continued only when there is a high possibility that the electronic device 10 will be used without human contact, which provides high safety.

[0103] III. Third Embodiment

[0104] In the first embodiment, if consent to the continuation inquiry message 314 is not entered ("Do not agree and turn off" 316 is selected or timeout occurs) (step S107, NO), the mode control unit 101 turns off the continuous mode (step S112) and terminates functions that may cause the surface temperature to rise to a temperature higher than normal (USB tethering 5G communication, HDMI (registered trademark) high-definition video display, etc.).

[0105] In contrast, according to the third embodiment, if a timeout occurs in response to the continuation inquiry message 314, and tethering communication is being performed via a USB cable, the mode control unit 101 continues the continuous mode even without the user's consent.

[0106] Thus, according to the third embodiment, if a timeout occurs for the continuous inquiry message 314, the continuous mode is continued only if there is a high possibility that the electronic device 10 will be used without human contact, thereby providing high safety.

[0107] IV. Conclusion

[0108] Electronic devices, such as mobile devices like smartphones and tablet computers, are popular, general-purpose devices used by a large number of end users. Therefore, the majority of users are unaware that the surface temperature of electronic devices can rise to a temperature high enough to cause low-temperature burns. In other words, the majority of users are unaware of the potential dangers of electronic devices. While it is conceivable to attach stickers to electronic devices to inform and educate users about the dangers, it is difficult to fully educate all users about the dangers using stickers. Therefore, when an electronic device performs a function that may cause the surface temperature to rise higher than normal, as described above, to ensure the safety of all users, the upper limit of the surface temperature of the electronic device is controlled (mitigated) to a level that will not cause burns to users (corresponding to the safe temperature range in this embodiment). Typically, the performance of the electronic device is reduced (e.g., the upper limit of the clock speed of the control circuit) to prevent the surface temperature of the electronic device from exceeding the upper limit. As a result, the specifications required for the electronic device may not be met.

[0109] (1) In contrast, the electronic device 10 according to this embodiment includes a temperature sensor 18 that detects the temperature of a specific portion of the electronic device 10, and a mode control unit 101 that turns on a sustained mode, which is a mode that allows the surface temperature ST of the electronic device 10, calculated based on the temperature detected by the temperature sensor 18, to rise to the low-temperature burn temperature range, which is a temperature range that can cause low-temperature burns, when the electronic device 10 is used without touching the human body.

[0110] According to this embodiment, when the electronic device 10 is used without contact with the human body, the surface temperature ST of the electronic device 10 is allowed to rise to (the upper limit of) the low-temperature burn temperature range (sustained mode), thereby maintaining (not decreasing) the performance of the electronic device 10. This makes it possible to achieve both high performance of the electronic device 10 and safety for the user.

[0111] (2) The electronic device 10 further includes a cable interface 19, and when a USB cable or an HDMI (registered trademark) cable is inserted into the cable interface 19, the mode control unit 101 determines that the electronic device 10 is being used without touching the human body (step S101, YES).

[0112] Depending on the function executed by the electronic device 10, the surface temperature ST may rise to a temperature higher than normal. Specific examples of such functions include 5G communication via tethering via a USB cable and real-time display of high-definition video received via an HDMI (registered trademark) cable. These functions may require the electronic device 10 to be used without human contact. For example, in the case of the tethering function, the user operates a personal computer and does not touch the electronic device 10. In addition, in the case of high-definition video display, the electronic device 10 is placed in a holder fixed to a video camera, and the display of the electronic device 10 is used as a monitor. In this way, when the electronic device 10 is used without human contact and a function is executed that may cause the surface temperature ST to rise to a temperature higher than normal, the sustain mode is turned on. This allows for both high performance of the electronic device 10 and user safety.

[0113] (3) The mode control unit 101 is triggered by turning on the continuous mode (step S102) to output a start inquiry message 214, which is a message to inquire whether or not the user agrees to start the continuous mode (step S103). If consent is entered, the continuous mode is started (step S103, YES). If consent is not entered (step S103, NO), the continuous mode is turned off (step S112).

[0114] By obtaining the user's consent when turning on the continuous mode, it is possible to more reliably ensure the safety of the user.

[0115] (4) When the sustain mode is on and the surface temperature ST becomes higher than the upper limit value Tmin of the safe temperature range (step S105, YES), the mode control unit 101 outputs a continuation inquiry message 314, which is a message to inquire whether or not to agree to the continuation of the sustain mode (step S107).If agreement is input, the sustain mode is continued (step S107, YES).If agreement is not input (step S107, NO), the mode control unit 101 turns off the sustain mode (step S112).

[0116] Obtaining user consent when the surface temperature ST exceeds the upper limit Tmin of the safety temperature range can ensure user safety. Furthermore, if consent is not entered (including a timeout), the continuous mode can be turned off, thereby ensuring user safety. The timeout period can be set to a period of time (e.g., 1 to 5 minutes) that will prevent low-temperature burns from occurring even if the human body continues to touch the surface of the electronic device 10 when the electronic device 10 is at the upper limit Tmin of the safety temperature range. This allows the surface temperature ST to fall within the low-temperature burn temperature range before the user notices the continuation inquiry message 314, preventing the user from unknowingly touching the electronic device 10 and suffering a low-temperature burn. For example, low-temperature burns can be prevented when a user falls asleep during USB tethering communication and touches the electronic device 10 for a long time while remaining in the same position.

[0117] (5) When the sustained mode is on, if the surface temperature ST reaches a specific temperature higher than the upper limit value Tmin of the safe temperature range before consent is input (step S107, NO), the mode control unit 101 turns off the sustained mode (step S112).

[0118] The "specific temperature" is a temperature at which a low-temperature burn can occur in a shorter contact time than the contact time at which a human body would suffer a low-temperature burn if it came into contact with the electronic device 10 at a temperature of the lower limit value Tmin. When the surface temperature ST reaches the specific temperature, it means that the surface temperature of the electronic device 10, while perceived by the user as safe, suddenly rises to a temperature at which a low-temperature burn can occur in a short contact time, making it dangerous for the user to unknowingly touch the electronic device 10. For this reason, by turning off the continuous mode when the surface temperature ST reaches the specific temperature, the safety of the user can be ensured.

[0119] (6) When consent is input and the continuous mode is continued, the mode control unit 101 periodically (step S108, YES) outputs a continuation inquiry message 314 (step S107) while the surface temperature ST is within the low-temperature burn temperature range. If consent is input, the mode control unit 101 continues the continuous mode (step S107, YES). If consent is not input (step S107, NO), the mode control unit 101 turns off the continuous mode (step S112).

[0120] During the period when the surface temperature ST is within the low-temperature burn temperature range, user safety can be more reliably ensured by informing and educating users about the dangers at effective times and frequently, and obtaining their consent.

[0121] (7) The electronic device 10 further includes a cable interface 19. When consent is input to continue the continuous mode, the mode control unit 101 periodically determines whether a USB cable or an HDMI (registered trademark) cable is inserted into the cable interface 19 during the period in which the surface temperature ST is within the low-temperature burn temperature range (step S114). If an USB cable or an HDMI (registered trademark) cable is inserted, the continuous mode is continued (step S114, YES). If an HDMI cable is not inserted (step S114, NO), the continuous mode is turned off (step S112).

[0122] This is user-friendly as it does not require the user to give consent repeatedly and periodically, and is highly safe as the persistent mode continues only when there is a high possibility that the electronic device 10 will be used without contact with the human body.

[0123] (8) When the sustained mode is on, if the surface temperature ST becomes higher than the upper limit value Tmin of the safe temperature range (step S105, YES), the mode control unit 101 continues to output the warning icon 311 (step S106), and if the warning icon 311 is operated, it outputs a warning message 312.

[0124] This allows users to be notified and educated about dangers at effective times and frequently, making it possible to more reliably ensure user safety.

[0125] (9) When the sustained mode is on, the mode control unit 101 hides the warning icon if the surface temperature ST falls below the upper limit Tmin of the safe temperature range.

[0126] As a result, the mode control unit 101 continues to display the warning icon 311 on the home screen 300 while the surface temperature ST is within the low-temperature burn temperature range. This makes it possible to more frequently inform and educate the user about the dangers, and to more reliably ensure the safety of the user.

[0127] (10) When the sustain mode is on, the mode control unit 101 continues to output the explanation message 301, which is a message explaining the sustain mode, until the surface temperature ST becomes higher than the upper limit value Tmin of the safe temperature range (step S104).

[0128] As a result, when the sustained mode is on, a message explaining the sustained mode, i.e., a message explaining that the surface temperature ST of the electronic device 10 may rise to the low-temperature burn temperature range, is continuously output. This makes it possible to inform and educate the user about the possibility of danger even if the surface temperature ST does not exceed the upper limit value Tmin of the safe temperature range, thereby more reliably ensuring the safety of the user.

[0129] (11) When the surface temperature ST becomes higher than the low temperature burn temperature range while the sustain mode is on, the mode control unit 101 restarts the electronic device 10 (step S111) and turns off the sustain mode (step S112).

[0130] This makes it possible to more reliably ensure the safety of the user.

[0131] (12) The electronic device 10 is a mobile device.

[0132] The electronic device 10, which is a mobile device such as a smartphone or tablet computer, is a popular, general-purpose device used by a large number of end users. Therefore, the majority of users are unaware that the surface temperature of the electronic device 10 can rise to a temperature high enough to cause low-temperature burns. In other words, the majority of users are unaware of the potential dangers of the electronic device 10. Therefore, according to this embodiment, in order to address the possibility that the electronic device 10 will be used by a large number of staff members and the differences in risk awareness among users, when the surface temperature ST rises to the low-temperature burn temperature range, users are notified and educated about the dangers at effective times and frequently, and their consent is obtained, thereby ensuring user safety.

[0133] Note that the embodiment according to the present disclosure may employ the following configuration.

[0134] (1) An electronic device, a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a mode control unit that turns on a sustained mode, which is a mode that allows a surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode, when the electronic device is used without being touched by a human body; and An electronic device comprising: (2) The electronic device according to (1) above, further comprising a cable interface; The mode control unit determines that the electronic device is to be used without contact with a human body when a cable is inserted into the cable interface. electronic equipment. (3) The electronic device according to (1) or (2) above, The mode control unit outputting a start inquiry message, which is a message for inquiring whether or not to agree to start the sustain mode, triggered by turning on the sustain mode; Once consent is entered, initiating said persistent mode; If consent is not entered, the persistence mode is turned off. electronic equipment. (4) The electronic device according to any one of (1) to (3) above, The mode control unit outputting a continuation inquiry message that is a message for inquiring whether or not to continue the continuation mode when the surface temperature becomes higher than the first upper limit value while the continuation mode is on; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off. electronic equipment. (5) The electronic device according to (4) above, The mode control unit When the persistence mode is on, if the surface temperature reaches a specific temperature higher than the first upper limit before the consent is entered, the persistence mode is turned off. electronic equipment. (6) The electronic device according to (4) or (5) above, The mode control unit If the consent is input to continue the continuous mode, the continuous inquiry message is output periodically while the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off. electronic equipment. (7) The electronic device according to any one of (4) to (6) above, further comprising a cable interface; The mode control unit If the consent is entered to continue the sustained mode, during a period in which the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value, periodically determining whether a cable is inserted into the cable interface; If inserted, continue the persistent mode; If not inserted, turn off persistence mode electronic equipment. (8) The electronic device according to any one of (1) to (7) above, The mode control unit When the sustained mode is on, if the surface temperature becomes higher than the first upper limit value, continue to output a warning icon; When the warning icon is operated, a warning message is output. electronic equipment. (9) The electronic device according to (8) above, The mode control unit When the sustained mode is on, if the surface temperature becomes equal to or lower than the first upper limit, the warning icon is hidden. electronic equipment. (10) The electronic device according to any one of (1) to (9) above, The mode control unit When the sustain mode is on, an explanatory message that is a message explaining the sustain mode continues to be output until the surface temperature becomes equal to or lower than the first upper limit value. electronic equipment. (11) The electronic device according to any one of (1) to (10) above, The mode control unit When the persistence mode is on, if the surface temperature becomes higher than the second upper limit value, the electronic device is restarted and the persistence mode is turned off. electronic equipment. (12) The electronic device according to any one of (1) to (11) above, The electronic device is a mobile device. electronic equipment. (13) a control circuit for the electronic device having a temperature sensor for detecting a temperature of a predetermined portion of the electronic device; a mode control unit that turns on a sustained mode, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode, when the electronic device is used without being touched by a human body; A mode control program that operates as a (14) a control circuit for the electronic device having a temperature sensor for detecting a temperature of a predetermined portion of the electronic device; a mode control unit that turns on a sustained mode, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode, when the electronic device is used without being touched by a human body; Mode control program that operates as A non-transitory computer-readable recording medium storing the above.

[0135] Although the embodiments and modified examples of the present technology have been described above, the present technology is not limited to the above-described embodiments, and it goes without saying that various modifications can be made within the scope of the gist of the present technology. [Explanation of symbols]

[0136] 10 Electronic equipment 11 CPU 12 ROM 13 RAM 14 Storage device 15 Communication Interface 16 Input Devices 17 Output Devices 18 Temperature Sensor 19 Cable Interface 100 control circuit 101 Mode control section 102 Temperature conversion section 200 System Settings Screen 201 Menu 210 Persistence mode setting screen 211 Message 212 Messages 213 Slide Button 214 Start inquiry message 300 Home Screen 301 explanatory message 311 warning icon 312 Warning Message 313 Warning Message 314 Continuing inquiry message 317 Persistent Mode End Message 400 Ambient Screen 411 warning icon 412 warning message

Claims

1. An electronic device, a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; outputting a continuation inquiry message that is a message for inquiring whether or not to continue the continuation mode when the surface temperature becomes higher than the first upper limit value while the continuation mode is on; If consent is entered, the persistent mode continues; a mode control unit that turns off the persistence mode if consent is not entered; An electronic device comprising:

2. An electronic device, a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; When the sustained mode is on, if the surface temperature becomes higher than the first upper limit value, a warning icon is continuously output; a mode control unit that outputs a warning message when the warning icon is operated; An electronic device comprising:

3. An electronic device, a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; a mode control unit that, when the sustain mode is on, continues to output an explanatory message that is a message explaining the sustain mode until the surface temperature becomes equal to or lower than the first upper limit value; An electronic device comprising:

4. An electronic device, a temperature sensor for detecting a temperature at a predetermined portion of the electronic device; a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; a mode control unit that restarts the electronic device and turns off the sustain mode when the surface temperature becomes higher than the second upper limit value while the sustain mode is on; An electronic device comprising:

5. 5. The electronic device according to claim 1, further comprising a cable interface; The mode control unit determines that the electronic device is to be used without contact with a human body when a cable is inserted into the cable interface. electronic equipment.

6. 5. The electronic device according to claim 1, The mode control unit outputting a start inquiry message, which is a message for inquiring whether or not to agree to start the sustain mode, triggered by turning on the sustain mode; Once consent is entered, initiating said persistent mode; If consent is not entered, the persistence mode is turned off. electronic equipment.

7. 10. The electronic device according to claim 1, The mode control unit When the persistence mode is on, if the surface temperature reaches a specific temperature higher than the first upper limit before the consent is entered, the persistence mode is turned off. electronic equipment.

8. 8. The electronic device according to claim 7, The mode control unit If the consent is input to continue the continuous mode, the continuous inquiry message is output periodically while the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off. electronic equipment.

9. 9. The electronic device according to claim 8, further comprising a cable interface; The mode control unit If the consent is entered to continue the sustained mode, during a period in which the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value, periodically determining whether a cable is inserted into the cable interface; If inserted, continue the persistent mode; If not inserted, turn off persistence mode electronic equipment.

10. 3. The electronic device according to claim 2, The mode control unit When the sustained mode is on, if the surface temperature becomes equal to or lower than the first upper limit, the warning icon is hidden. electronic equipment.

11. 5. The electronic device according to claim 1, The electronic device is a mobile device. electronic equipment.

12. a control circuit for the electronic device having a temperature sensor for detecting a temperature of a predetermined portion of the electronic device; a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; outputting a continuation inquiry message that is a message for inquiring whether or not to continue the continuation mode when the surface temperature becomes higher than the first upper limit value while the continuation mode is on; If consent is entered, the persistent mode continues; A mode control unit that turns off the persistence mode if consent is not entered. A mode control program that operates as a

13. A control circuit for an electronic device having a temperature sensor for detecting the temperature of a predetermined portion of the electronic device, a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; When the sustained mode is on, if the surface temperature becomes higher than the first upper limit value, a warning icon is continuously output; a mode control unit that outputs a warning message when the warning icon is operated; A mode control program that operates as a

14. A control circuit for an electronic device having a temperature sensor for detecting the temperature of a predetermined portion of the electronic device, a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; a mode control unit that continues to output an explanatory message that explains the sustain mode until the surface temperature becomes equal to or lower than the first upper limit value when the sustain mode is on; A mode control program that operates as a

15. A control circuit for an electronic device having a temperature sensor for detecting the temperature of a predetermined portion of the electronic device, a sustained mode is turned on, which is a mode that allows the surface temperature of the electronic device calculated based on the temperature detected by the temperature sensor to rise to a second upper limit value that is higher than a first upper limit value that is an upper limit value of the temperature in a normal mode when the electronic device is used without being touched by a human body; a mode control unit that restarts the electronic device and turns off the sustain mode when the surface temperature becomes higher than the second upper limit value while the sustain mode is on; A mode control program that operates as a 16. A mode control program according to any one of claims 12 to 15, The electronic device further comprises a cable interface; The mode control unit determines that the electronic device is to be used without contact with a human body when a cable is inserted into the cable interface. Mode control program.

17. A mode control program according to any one of claims 12 to 15, The mode control unit outputting a start inquiry message, which is a message for inquiring whether or not to agree to start the sustain mode, triggered by turning on the sustain mode; Once consent is entered, initiating said persistent mode; If consent is not entered, the persistence mode is turned off. Mode control program.

18. The mode control program according to claim 12, The mode control unit When the persistence mode is on, if the surface temperature reaches a specific temperature higher than the first upper limit before the consent is entered, the persistence mode is turned off. Mode control program.

19. The mode control program according to claim 18, The mode control unit If the consent is input to continue the continuous mode, the continuous inquiry message is output periodically while the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value; If consent is entered, the persistent mode continues; If consent is not entered, the persistence mode is turned off. Mode control program.

20. The mode control program according to claim 19, further comprising a cable interface; The mode control unit If the consent is entered to continue the sustained mode, during a period in which the surface temperature is higher than the first upper limit value and equal to or lower than the second upper limit value, periodically determining whether a cable is inserted into the cable interface; If inserted, continue the persistent mode; If not inserted, turn off persistence mode Mode control program.

21. The mode control program according to claim 13, The mode control unit When the sustained mode is on, if the surface temperature becomes equal to or lower than the first upper limit, the warning icon is hidden. Mode control program.

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