Electronic device, determination method, and program

Abstract

To easily determine whether an electronic apparatus is put on a right wrist or on a left wrist.SOLUTION: An electronic apparatus 100 to be put on a wrist of a user comprises a first pulse sensor (pulse sensor A17), a second pulse sensor (pulse sensor B18) provided on a position different from that of the first pulse sensor in a direction from an arm to a fingertip when the electric apparatus is put on, and a determination unit (CPU 11) for determining whether the electronic apparatus 100 is put on a right wrist or on a left wrist based on a difference between a timing at which the first pulse sensor detects a prescribed pulse and a timing at which the second pulse sensor detects the pulse.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electronic device , judgment method and regarding the program. [Background technology]

[0002] Conventionally, wristwatches, wearable devices, and other devices worn on the wrist are often designed with the assumption that they will be worn on the left wrist, since most people are right-handed. This has led to the problem that devices designed for the left wrist are difficult to operate when worn on the right wrist.

[0003] To solve the above problem, there is a method of operating a button or menu to switch between right wrist mode and left wrist mode. In this regard, Patent Document 1 describes a technique in which a user is prompted to select a right wrist wearing mode or a left wrist wearing mode, and the functions assigned to each button are switched. Furthermore, Patent Document 2 describes a technique in which the user is prompted to select a right wrist wearing mode or a left wrist wearing mode, thereby switching the left and right sides of the screen. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 155391 / 1983 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-148375 Summary of the Invention [Problem to be solved by the invention]

[0005] The method of having such users operate buttons or menus to switch between the right wrist mode and the left wrist mode has the problem that the operation is cumbersome and they forget, or the menu operations are too complicated to remember. Furthermore, methods that automatically determine whether the device is being worn on the right or left wrist using an angle sensor have the problem of being difficult to determine because the hand is constantly moving, while methods that rely on facial recognition using a camera on the device have the problem of being unable to determine if the face is not visible in the camera.

[0006] The present invention provides Electronic devices are on either the left or right side Determine if it is on your wrist Ruko The purpose is to: [Means for solving the problem]

[0007] In order to solve the above problems, the electronic device of the present invention comprises: An electronic device worn on a user's wrist, a first pulse sensor; a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is worn; a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; Equipped with 、 When the first pulse sensor is disposed closer to the arm in a direction from the arm to the fingertip than the second pulse sensor, the determination unit determines that the electronic device is being worn on the left wrist if the timing is closer to the first pulse of two consecutive pulses of the first pulse sensor than to the second pulse. It is characterized by: In order to solve the above problem, another electronic device of the present invention comprises: An electronic device worn on a user's wrist, a first pulse sensor; a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is worn; a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; Equipped with The determination unit is characterized in that, when the second pulse sensor is positioned closer to the arm in the direction from the arm to the fingertip than the first pulse sensor, it determines that the electronic device is being worn on the left wrist if the timing is closer to the second pulse of two consecutive pulses of the first pulse sensor than to the first pulse. [Effects of the Invention]

[0008] According to the present invention, Electronic devices are on either the left or right side You can tell if it's on your wrist. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 10 is a diagram showing the position of a pulse sensor in an external view showing the front of the electronic device. [Figure 2] FIG. 1 is a block diagram illustrating an overall configuration of an electronic device. [Figure 3] FIG. 1 is a diagram illustrating the principle of a pulse sensor. [Figure 4] FIG. 10 is a diagram illustrating an example in which pulsation is detected by two pulse sensors. [Figure 5] 10A and 10B are diagrams illustrating an example in which a pulse sensor detects pulse when an electronic device is worn on the left wrist. [Figure 6] 10A and 10B are diagrams illustrating an example in which a pulse sensor detects pulse when an electronic device is worn on the right wrist. [Figure 7] 10 is a flowchart showing the flow of a determination process executed by the electronic device. [Figure 8] FIG. 10 is a diagram showing an example of portrait display when the electronic device is worn on the left wrist. [Figure 9] 10A and 10B are diagrams illustrating an example of portrait display when the electronic device is worn on the right wrist. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the following embodiments and drawings.

[0011] <Electronic device configuration> First, an overview of an electronic device 100 as an electronic device according to this embodiment will be described. FIG. 1 is a diagram showing the positions of a pulse sensor A17 and a pulse sensor B18 in an external view showing the front side of an electronic device 100 according to the present invention.

[0012] As shown in FIG. 1, the electronic device 100 is wristwatch-type and includes a main body 1 and a band 2.

[0013] The main body 1 has a display unit 15 (described later) on its top surface. The main body 1 also has an operation button 141 on its left side and an operation button 142 on its right side. In this embodiment, three operation buttons 141 and 142 are provided, but the number is not limited to three as long as there is at least one of each. Inside the main body 1, when the direction in which a band 2 (described later) extends is viewed as the 12 o'clock side of an analog watch, a pulse sensor A17 is provided at a position offset toward the 9 o'clock side, and a pulse sensor B18 is provided at a position offset toward the 3 o'clock side. That is, when the electronic device 100 is worn on the user's wrist, the pulse sensor A17 and the pulse sensor B18 are positioned so as to be spaced apart from each other in the arm-to-hand direction. When the electronic device 100 is worn on the user's left wrist, the pulse sensor A17 is positioned so as to be offset toward the arm side in the arm-to-hand direction relative to the pulse sensor B18.

[0014] The band 2 is for fastening the main body 1 to the user's wrist.

[0015] Next, the functional configuration of the electronic device 100 will be described with reference to FIG. FIG. 2 is a block diagram showing the functional configuration of the electronic device 100. As shown in FIG.

[0016] As shown in FIG. 2, the main body 1 of the electronic device 100 is configured to include a CPU (Central Processing Unit) 11, a RAM (Random Access Memory) 12, a storage unit 13, an operation unit 14, a display unit 15, a communication unit 16, a pulse sensor A 17, a pulse sensor B 18, etc., and each unit is connected via a bus 19.

[0017] The CPU 11 is a processor that controls each part of the main body 1. The CPU 11 reads out a program stored in the storage unit 13, loads it into the RAM 12, and executes the program to perform various arithmetic operations. Furthermore, CPU 11 determines whether electronic device 100 is worn on the right wrist or the left wrist based on the difference between the timing at which a predetermined pulse is detected by the first pulse sensor (pulse sensor A17) and the timing at which a predetermined pulse is detected by the second pulse sensor (pulse sensor B18). Here, CPU 11 functions as a determination unit. Furthermore, depending on the determination result by the determination unit, the CPU 11 switches the functions assigned to the operation buttons 141 and 142. Here, the CPU 11 functions as a switching control unit. Furthermore, in accordance with the determination result by the determination unit, the CPU 11 rearranges the order of menus displayed on the display unit 15 or changes the orientation of the screen displayed on the display unit 15. Here, the CPU 11 functions as a display control unit.

[0018] The RAM 12 provides a working memory space for the CPU 11 and stores temporary data. The RAM 12 may include a non-volatile memory.

[0019] The storage unit 13 stores various data such as programs (including the determination process described below) executed by the CPU 11 and setting data. The programs are stored in the storage unit 13 in the form of computer-readable program code. The storage unit 13 may be, for example, a storage device such as a flash memory that does not require a power source to hold data.

[0020] The operation unit 14 is configured to have an operation button 141 provided on the left side of the main body 1, an operation button 142 provided on the right side, and a touch sensor (not shown) provided on the display unit 15, and accepts input operations from the user, converts the operation content into an electrical signal, and outputs it to the CPU 11.

[0021] The display unit 15 is configured with an LCD (Liquid Crystal Display) or the like, and displays a screen in accordance with a display control signal from the CPU 11. The display screen of the display unit 15 is provided with the above-mentioned touch sensor, and functions as a touch panel type operation and display means.

[0022] The communication unit 16 is a communication module having an antenna, a modulation / demodulation circuit, a signal processing circuit, etc., and performs wireless data communication with an external terminal device in accordance with a communication standard for short-range wireless communication, for example, BLE (Bluetooth (registered trademark) Low Energy).

[0023] Pulse sensor A17 and pulse sensor B18 each include a light-receiving element and a light-emitting element. Figure 3 shows the principle of the pulse sensor. The light-emitting element is a light-emitting diode that emits green light, for example, light with a wavelength of 520 nm to 530 nm, that is easily absorbed by hemoglobin in the blood within the area illuminated by the light-emitting element. The light-receiving element is a photodiode that receives light and outputs it as an electrical signal. It receives reflected light that is illuminated onto the wrist by the light-emitting element and outputs an electrical signal with an amount of power corresponding to the amount of light received. Pulse sensor A17 and pulse sensor B18 measure the change in arterial blood volume, which is the blood flow that changes with the heart's pulsation. In other words, by measuring the change in light absorption, the state of the pulsation can be measured over time. An example of the measurement results is shown in the lower diagram of Figure 3. Furthermore, the pulse sensor A17 and the pulse sensor B18 output the measurement results to the CPU 11.

[0024] Figure 4 shows an example of detecting pulsation using pulse sensor A 17 and pulse sensor B 18. If the blood flow direction is from left to right, that is, from pulse sensor A 17 to pulse sensor B 18, it is possible to measure nearly similar pulsation waveforms with a certain time difference, as shown in the lower diagram of Figure 4.

[0025] 5 shows an example of detection by pulse sensor A17 and pulse sensor B18 when electronic device 100 is worn on the left wrist. When electronic device 100 is worn on the left wrist, the direction of blood flow is from left to right, that is, from pulse sensor A17 to pulse sensor B18. Because pulse sensor A17 is upstream of the blood flow, pulse sensor A17 detects a change in pulse first, and after a short time pulse sensor B18 detects a change in pulse. Let TA1 be the peak time of the first pulse detected by pulse sensor A17, TA2 be the peak time of the second pulse, and TB1 be the peak time of the first pulse detected by pulse sensor B18 after TA1. In this case, a waveform like the one shown in the lower diagram of FIG. 5 is obtained, and TA1, TA2, and TB1 satisfy the following formula (1). That is, if the first time (TB1-TA1) from when pulse sensor A17 detects the first pulse to when pulse sensor B18 detects the first pulse is shorter than the second time (TA2-TB1) from when pulse sensor B18 detects the first pulse to when pulse sensor A17 detects the second pulse, CPU 11 determines that electronic device 100 is worn on the left wrist. (1) TB1-TA1 <TA2-TB1

[0026] 6 shows an example of detection by pulse sensor A17 and pulse sensor B18 when electronic device 100 is worn on the right wrist. When electronic device 100 is worn on the right wrist, the direction of blood flow is from right to left, that is, from pulse sensor B18 to pulse sensor A17. Because pulse sensor B18 is upstream of the blood flow, pulse sensor B18 detects a change in pulse first, and then, a short time later, pulse sensor A17 detects a change in pulse. Let TA1 be the peak time of the first pulse detected by pulse sensor A17, TA2 be the peak time of the second pulse, and TB1 be the peak time of the first pulse detected by pulse sensor B18 after TA1. In this case, a waveform like the one shown in the lower diagram of FIG. 6 is obtained, and TA1, TA2, and TB1 satisfy the following formula (2). That is, if the first time (TB1-TA1) from when pulse sensor A17 detects the first pulse to when pulse sensor B18 detects the first pulse is longer than the second time (TA2-TB1) from when pulse sensor B18 detects the first pulse to when pulse sensor A17 detects the second pulse, CPU 11 determines that electronic device 100 is worn on the right wrist. (2) TB1-TA1>TA2-TB1

[0027] <Overview of electronic device operation> Next, the operation of the electronic device 100 according to this embodiment will be described. When the user wears the electronic device 100 on the arm, the CPU 11 starts the determination process as shown in FIG. 7. The determination process is executed by a program stored in the storage unit 13. As a method for detecting that it is worn on the arm, a sensor for that purpose may be provided, or the user may press a predetermined button after wearing the electronic device 100 on the wrist.

[0028] First, the CPU 11 controls the pulse sensor A17 to detect TA1, which is the peak time of the first pulsation (step S1). Next, the CPU 11 controls the pulse sensor B18 to detect TB1, which is the peak time of the first pulsation (step S2). Next, the CPU 11 controls the pulse sensor A17 to detect TA2, which is the peak time of the second pulsation (step S3).

[0029] Next, the CPU 11 uses TA1, TA2, and TB1 obtained in steps S1 to S3 to compare "TB1 - TA1" with "TA2 - TB1" and determines whether "TB1 - TA1 > TA2 - TB1" (step S4). If "TB1 - TA1 > TA2 - TB1" (step S4; YES), the CPU 11 determines that the electronic device 100 is worn on the right wrist (step S5) and ends the process. If "TB1 - TA1 > TA2 - TB1" is not satisfied (step S4; NO), the CPU 11 determines whether "TB1 - TA1 < TA2 - TB1" (step S6). If "TB1 - TA1 < TA2 - TB1" (step S6; YES), the CPU 11 determines that the electronic device 100 is worn on the left wrist (step S7) and ends the process. If "TB1 - TA1 < TA2 - TB1" is not satisfied (step S6; NO), the CPU 11 returns to step S1.

[0030] When the CPU 11 determines through a determination process whether the electronic device 100 is worn on the right wrist or the left wrist, it switches the functions of the operation buttons 141 and 142 and switches the arrangement of the menus displayed on the display unit 15 according to the determination result. Of the functions of electronic device 100, frequently used functions (for example, the start / stop function of a stopwatch) are easier to operate if they are assigned to operation buttons closer to the fingers. Therefore, when electronic device 100 is worn on the left wrist, CPU 11 assigns the frequently used functions to operation buttons 142 closer to the fingers. Additionally, CPU 11 accordingly displays the frequently used menus on the operation button 142 side, which is the right side of display unit 15. Additionally, when electronic device 100 is worn on the right wrist, CPU 11 assigns the frequently used functions to operation buttons 141 closer to the fingers. Additionally, CPU 11 accordingly displays the frequently used menus on the operation button 141 side, which is the left side of display unit 15.

[0031] Furthermore, when vertical display (for example, vertically written text) is performed on the display unit 15 from left to right or from right to left as shown in FIGS. 8 and 9, the CPU 11 switches the orientation of the vertical display depending on the determination result of the determination process. When electronic device 100 is worn on the left wrist as shown in Fig. 8, CPU 11 displays vertically from left to right on display unit 15. When electronic device 100 is worn on the right wrist as shown in Fig. 9, CPU 11 displays vertically from right to left on display unit 15. The arrows in Figs. 8 and 9 indicate the display orientation.

[0032] As described above, the electronic device 100 according to the above embodiment is an electronic device 100 worn on the user's wrist, and comprises a first pulse sensor (pulse sensor A17), a second pulse sensor (pulse sensor B18) that is provided at a position different from the first pulse sensor in the direction from the arm to the fingertip when worn, and a judgment unit (CPU11) that judges whether the electronic device is worn on the right wrist or the left wrist based on the difference between the timing at which the first pulse sensor detects a predetermined pulse and the timing at which the second pulse sensor detects it. Therefore, it is easy to determine whether the device is worn on the right or left wrist.

[0033] In addition, the judgment unit (CPU11) judges whether the electronic device 100 is worn on the right wrist or the left wrist based on a first time from when the first pulse sensor (pulse sensor A17) detects the first pulse to when the second pulse sensor (pulse sensor B18) detects the first pulse, and a second time from when the second pulse sensor detects the first pulse to when the first pulse sensor detects the second pulse. Therefore, it is possible to easily determine whether the watch is worn on the right wrist or the left wrist based on the first time and the second time.

[0034] Furthermore, the first pulse sensor (pulse sensor A17) is positioned closer to the arm in the direction from the arm to the fingertips than the second pulse sensor (pulse sensor B18) when the electronic device 100 is worn on the left wrist, and the judgment unit (CPU11) determines that the electronic device 100 is worn on the left wrist if the first time is shorter than the second time, and determines that the electronic device 100 is worn on the right wrist if the first time is longer than the second time. Therefore, based on the difference between the first time and the second time, it can be easily determined whether the watch is worn on the right wrist or the left wrist.

[0035] The device also includes a switching control unit (CPU 11) that switches the functions assigned to the operation unit (operation buttons 141, 142) according to the result of the determination by the determination unit (CPU 11). Therefore, it is possible to realize electronic device 100 that is easy for the user to use, depending on the determination result by the determination unit.

[0036] The display control unit (CPU 11) also includes a display control unit (CPU 11) that rearranges the order of the menus displayed on the display unit 15 in accordance with the result of the determination by the determination unit (CPU 11). Therefore, it is possible to realize electronic device 100 that is easy for the user to use, depending on the determination result by the determination unit.

[0037] The display control unit (CPU 11) also includes a display control unit (CPU 11) that changes the orientation of the screen displayed on the display unit 15 in accordance with the result of the determination by the determination unit (CPU 11). Therefore, it is possible to realize electronic device 100 that allows the user to easily view the display depending on the determination result by the determination unit.

[0038] It goes without saying that the present invention is not limited to the above-described embodiments, and that modifications can be made as appropriate without departing from the spirit of the present invention. For example, in the above embodiment, pulse sensor A17 is provided at the 9 o'clock position of main body 1, and pulse sensor B18 is provided at the 3 o'clock position of main body 1, but this is not limited to this. The distance between pulse sensor A17 and pulse sensor B18 may be any distance that allows detection of the difference in the peaks of the pulsation waveforms.

[0039] In the above embodiment, the pulse sensors A17 and B18 each include a light-receiving element and a light-emitting element, but this is not limited to this. Only one of the sensors may include a light-emitting element, and the reflected light from the one light-emitting element may be received by two light-receiving elements.

[0040] In the above embodiment, CPU 11 displays vertically from left to right on display unit 15 when electronic device 100 is worn on the left wrist, and displays vertically from right to left on display unit 15 when electronic device 100 is worn on the right wrist, but this is not limited to this. CPU 11 may display vertically from right to left on display unit 15 when electronic device 100 is worn on the left wrist, and may display vertically from left to right on display unit 15 when electronic device 100 is worn on the right wrist.

[0041] Furthermore, when the electronic device 100 of the above embodiment is applied to a blood pressure monitor, it is possible to automatically record information on which wrist the blood pressure was measured on based on the determination result of whether the device is worn on the right or left wrist.

[0042] Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. The inventions described in the claims originally attached to this application are as follows. The claim numbers described in the appendix are the same as those of the claims originally attached to this application. [Note] <Claim 1> An electronic device worn on a user's wrist, a first pulse sensor; a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is worn; a determination unit that determines whether the electronic device is worn on the right wrist or the left wrist based on a difference between the timing at which the first pulse sensor detects a predetermined pulse and the timing at which the second pulse sensor detects the predetermined pulse; An electronic device comprising: <Claim 2> the determination unit determines whether the electronic device is worn on the right wrist or the left wrist based on a first time period from when the first pulse sensor detects a first pulse until when the second pulse sensor detects a first pulse, and a second time period from when the second pulse sensor detects the first pulse until when the first pulse sensor detects a second pulse. 2. The electronic device according to claim 1, wherein: <Claim 3> the first pulse sensor is disposed so as to be biased toward the arm side in a direction from the arm to the fingertip relative to the second pulse sensor when the electronic device is worn on the left wrist, the determination unit determines that the electronic device is worn on the left wrist when the first time period is shorter than the second time period, and determines that the electronic device is worn on the right wrist when the first time period is longer than the second time period. 3. The electronic device according to claim 2. <Claim 4> a switching control unit that switches functions assigned to an operation unit according to a result of the determination by the determination unit; 4. The electronic device according to claim 1, further comprising: <Claim 5> a display control unit that rearranges the order of the menus displayed on the display unit according to the determination result of the determination unit; 5. The electronic device according to claim 1, further comprising: <Claim 6> a display control unit that changes the orientation of a screen displayed on a display unit in accordance with a determination result by the determination unit; 5. The electronic device according to claim 1, further comprising: <Claim 7> a computer of an electronic device that is attached to a user's wrist and includes a first pulse sensor and a second pulse sensor that is provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is attached; a determination unit that determines whether the electronic device is worn on the right wrist or the left wrist based on a difference between the timing at which the first pulse sensor detects a predetermined pulse and the timing at which the second pulse sensor detects a predetermined pulse; A program characterized by functioning as [Explanation of symbols]

[0043] 100 Electronic equipment 1 Main body 2 bands 11 CPU (judgment unit, switching control unit, display control unit) 12 RAM 13 Storage section 14 Control section 141 Operation buttons 142 Operation buttons 15 Display section 16 Communications Department 17 Pulse Sensor A17 18 Pulse Sensor B18 19 Bus

Claims

1. An electronic device worn on a user's wrist, a first pulse sensor; a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is worn; a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; Equipped with When the first pulse sensor is disposed closer to the arm in a direction from the arm to the fingertip than the second pulse sensor, the determination unit determines that the electronic device is being worn on the left wrist if the timing is closer to a first pulse than to a second pulse of two consecutive pulses of the first pulse sensor. An electronic device characterized by:

2. An electronic device worn on a user's wrist, a first pulse sensor; a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the device is worn; a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; Equipped with When the second pulse sensor is disposed closer to the arm in a direction from the arm to the fingertip than the first pulse sensor, the determination unit determines that the electronic device is being worn on the left wrist if the timing is closer to a second pulse of two consecutive pulses of the first pulse sensor than to a first pulse. An electronic device characterized by:

3. The electronic device includes: two operation units disposed on the arm side and the hand side when the electronic device is worn on the wrist; a second operation unit of the two operation units is provided on a hand tip side when the electronic device is worn on the left wrist, a first operation unit of the two operation units is provided on the arm side when the electronic device is worn on the left wrist, a switching control unit that switches between a function assigned to the first operation unit and a function assigned to the second operation unit according to a determination result by the determination unit; 3. The electronic device according to claim 1, further comprising:

4. A determination method executed by an electronic device worn on a user's wrist, comprising: the electronic device includes a first pulse sensor and a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the electronic device is worn; The determination method includes: determining whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; and determining that the electronic device is worn on the left wrist when the timing of the first pulse sensor is closer to the first pulse than to the second pulse of two consecutive pulses of the first pulse sensor, when the first pulse sensor is disposed closer to the arm side in a direction from the arm to the fingertip than the second pulse sensor. Judgment method.

5. A determination method executed by an electronic device worn on a user's wrist, comprising: the electronic device includes a first pulse sensor and a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the electronic device is worn; The determination method includes: determining whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; and determining that the electronic device is worn on the left wrist when the timing of the second pulse sensor is closer to the arm side than the first pulse sensor in a direction from the arm to the fingertip, and the second pulse sensor is closer to the arm side than the first pulse sensor. Judgment method.

6. a computer of an electronic device including a first pulse sensor and a second pulse sensor provided at a position different from the first pulse sensor in a direction from the arm to the fingertip when the electronic device is worn on the wrist; a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; It functions as When the first pulse sensor is disposed closer to the arm in a direction from the arm to the fingertip than the second pulse sensor, the determination unit determines that the electronic device is being worn on the left wrist if the timing is closer to a first pulse than to a second pulse of two consecutive pulses of the first pulse sensor. A program characterized by:

7. A computer for an electronic device comprising a first pulse sensor and a second pulse sensor provided at a position different from the first pulse sensor in the direction from the arm to the fingertips when worn on the wrist, a determination unit that determines whether the electronic device is worn on the right or left wrist based on the timing at which the second pulse sensor detects a pulse while the first pulse sensor detects two consecutive pulses; It functions as When the second pulse sensor is disposed closer to the arm in a direction from the arm to the fingertip than the first pulse sensor, the determination unit determines that the electronic device is being worn on the left wrist if the timing is closer to a second pulse of two consecutive pulses of the first pulse sensor than to a first pulse. A program characterized by:

Images