Electronic device, control method, and control program

Abstract

To secure a notification function of an electronic device without inviting an increase in cost and in power consumption associated with notification operation.SOLUTION: A control device is provided, comprising a processing unit (11) configured to make light-emitting elements (21a, 21b, 21c) for emitting information acquisition light, provided on an electronic device (1), emit notification light for notifying a user of the electronic device. The emission of each light-emitting element (21a, 21b, 21c) allows for indicating a notification on the charging state and temporary notification at specific times.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electronic vessel, Control method and control program Mu Regarding. [Background technology]

[0002] Conventionally, there are many electronic devices that use an optical pulse wave sensor to acquire pulse waves from a target such as a finger, earlobe, or wrist using the well-known photoplethysmography (or optical pulse wave detection method) and calculate pulse rate (heart rate) based on the acquired pulse waves. An optical pulse wave sensor is primarily composed of a light-emitting element that irradiates the target with detection light and a light-receiving element that receives light reflected from the target when the detection light is irradiated. Furthermore, for example, Patent Document 1 listed below describes a configuration in which, when an electronic device equipped with an optical pulse wave sensor needs to notify the user, the notification is made by illuminating a light-emitting element configured separately from the optical pulse wave sensor, i.e., a light-emitting element dedicated to notification, by displaying an image or text on a display device, or by outputting an alarm sound, audio guidance, or the like from a sound generating unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-225881 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the notification to the user is performed as described above by emitting light from a light-emitting element dedicated to notification, outputting an alarm sound or the like from a sound generating unit, or displaying an image or the like on a display device, it is essential to provide the electronic device with a light-emitting element, sound generating unit, or display device dedicated to notification, which increases the size of the circuit board in the electronic device, reducing the degree of freedom in designing the electronic device and increasing the number of components and the labor required to mount the components on the board, resulting in problems such as increased costs.

[0005] Of course, this problem would not arise if the configuration included a display device that displays various information other than the type of notification, but if the power required to drive the display device is large, power is wasted just for the purpose of notification. In that case, if the user is not paying attention to the screen of the display device, the notification operation will not function, resulting in the problem of wasted power consumption.

[0006] An object of the present invention is to provide an electronic device with a notification function without increasing costs or power consumption associated with the notification operation. [Means for solving the problem]

[0007] The electronic device according to the present invention is an electronic device including a light-emitting element and a control unit, The light-emitting element is a light-emitting element that emits light to allow the light-receiving element to acquire information; an optical sensor for detecting biological information of a user wearing the electronic device, the optical sensor being included together with the light receiving element; The control unit If the amount of light received by the light receiving element is equal to or less than a threshold value, it is determined that the electronic device is not being worn by the user. causing the light emitting element to emit light in a first pattern for acquiring biometric information of a user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user; The light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user.

[0008] A method for controlling an electronic device according to the present invention is a method for controlling an electronic device including a light-emitting element and a control unit, The light-emitting element is a light-emitting element that emits light to allow the light-receiving element to acquire information; an optical sensor for detecting biological information of a user wearing the electronic device, the optical sensor being included together with the light receiving element; If the amount of light received by the light receiving element is equal to or less than a threshold value, it is determined that the electronic device is not being worn by a user; causing the light emitting element to emit light in a first pattern for acquiring biometric information of a user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user; The light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user.

[0009] The control program according to the present invention is a program for controlling an electronic device including a light emitting element and a control unit. The light-emitting element is a light-emitting element that emits light to cause a light-receiving element to acquire information, and the electronic device is included together with the light-receiving element in an optical sensor that detects biological information of a user wearing the electronic device. By computer, If the amount of light received by the light receiving element is equal to or less than a threshold value, it is determined that the electronic device is not being worn by a user; causing the light emitting element to emit light in a first pattern for acquiring biometric information of a user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user; The light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user. [Effects of the Invention]

[0011] According to the present invention, it is possible to ensure a notification function in an electronic device without increasing costs or power consumption due to the notification operation. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an external view of an electronic device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an outline of the electrical configuration of the electronic device. [Figure 3] 10 is a flowchart showing the contents of an LED control process performed by a CPU. [Figure 4] 10 is a flowchart showing the contents of a notification process performed by a CPU. DETAILED DESCRIPTION OF THE INVENTION

[0013] An embodiment of the present invention will now be described. Figure 1 is a schematic diagram of an electronic device 1 according to an embodiment of the present invention, with (a) showing the front side of the electronic device 1 and (b) showing the back side of the electronic device 1. The electronic device 1 of this example is a wristwatch-type device (such as a smartwatch) equipped with an optical pulse wave sensor, and includes a device main body 2 equivalent to a watch main body.

[0014] As shown in FIG. 1(a), a display unit 3 is provided on the surface of the device main body 2, occupying almost the entire area, and a plurality of button switches 4, 5, and 6 are provided on the outer periphery of the device main body 2. Various information including the time and pulse rate (heart rate) is displayed on the display unit 3. The plurality of button switches 4, 5, and 6 are used by the user to operate the electronic device 1. A touch panel is also provided on the surface of the display unit 3, and the display unit 3, together with the plurality of button switches 4, 5, and 6, is also used to operate the electronic device 1. In this specification, the term "user" refers not only to the owner of the electronic device 1 but also to a person to whom the electronic device 11 is lent, as long as the user is a user of the electronic device 11.

[0015] 1(b), the back surface of the device main body 2 is closed by a back cover 2a, and a circular protrusion 7 is provided in the center of this back cover 2a, protruding slightly from the surrounding area so as to fit snugly against the user's wrist when the electronic device 1 is worn on the wrist. A rectangular light-receiving window 8 is provided in the center of the protrusion 7, and rectangular light-emitting windows 9a, 9b, and 9c, each smaller than the light-receiving window 8, are provided around three sides of the light-receiving window 8 and spaced apart from the light-receiving window 8. The light-receiving window 8 and the light-emitting windows 9a, 9b, and 9c are formed by sealing rectangular through-holes provided in the protrusion 7 with a synthetic resin or the like that is capable of transmitting light emitted by a light-emitting element (described later) and reflected light.

[0016] Fig. 2 is a block diagram showing an outline of the electrical configuration of electronic device 1. As shown in Fig. 2, electronic device 1 includes a CPU (Central Processing Unit) 11 as a processing unit, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a clock unit 14, a display device 15, an input operation unit 16, a communication unit 17, an acceleration sensor 18, a magnetic sensor 19, a pulse wave sensor 20, and a power supply unit 23.

[0017] The CPU 11 controls the entire device main body 2 in accordance with a program stored in the ROM 12. The ROM 12 may be a non-volatile memory, such as a flash memory, whose stored contents are rewritable. The RAM 13 is a working memory in which the CPU 11 temporarily stores various data as needed. The display device 15 includes a flat display panel, such as a liquid crystal display panel or an EL (electroluminescence) display panel, disposed on the display unit 3, and a drive circuit for driving the panel. The input operation unit 16 includes the plurality of button switches 4, 5, and 6 and a touch panel provided on the surface of the display unit 3, detects user operations on these, and supplies the detected operations to the CPU 11 as operation information.

[0018] The communication unit 17 includes, for example, an antenna, a radio frequency (RF) circuit, a baseband (BB) circuit, and a memory circuit, and transmits and receives wireless signals based on, for example, Bluetooth (registered trademark) Low Energy (BLE). The communication unit 17 demodulates, decodes, etc. the received wireless signals and sends them to the CPU 11, while encoding, modulating, etc. the signals sent from the CPU 11 and sending them to the outside, thereby enabling data communication between the electronic device 1 and other external devices. The external devices are, for example, smartphones, tablet terminals, and personal computers.

[0019] The power supply unit 23 includes a secondary battery such as a lithium-ion battery, a charging circuit, and a voltage conversion circuit, and controls charging of the secondary battery from an external power source and supplies power to each component within the electronic device 1 at the operating voltage required by each component. The secondary battery is charged, for example, via a charging cable connected to the device body 2 or via wireless charging using electromagnetic induction. The acceleration sensor 18 is, for example, a triaxial acceleration sensor, and detects accelerations acting on the electronic device 1 in the directions of three mutually orthogonal axes, and supplies the acceleration data to the CPU 11. The magnetic sensor 19 is, for example, a triaxial geomagnetic sensor, and detects geomagnetism acting on the electronic device 1 in the directions of three mutually orthogonal axes, and supplies the geomagnetism data to the CPU 11.

[0020] Pulse wave sensor 20 is an optical pulse wave sensor and has a plurality of LEDs (Light emitting diodes) that are light emitting elements, i.e., a first LED 21a, a second LED 21b, and a third LED 21c, that are respectively arranged inside light receiving sections 9a, 9b, and 9c provided on the back side of device body 2, and a photodiode 22 that is a light receiving element that is arranged inside light receiving section 8. In the following description, first LED 21a, second LED 21b, and third LED 21c will be abbreviated as LED 21a, 21b, and 21c, respectively, as necessary. Pulse wave sensor 20 mainly irradiates detection light from each of LEDs 21a, 21b, and 21c onto the user's wrist while electronic device 1 is worn on the user's wrist, receives light reflected from the user's wrist while the detection light is irradiated by photodiode 22, and supplies a detection signal corresponding to the amount of light received by photodiode 22 to CPU 11 as pulse wave data, enabling CPU 11 to measure the pulse rate (heart rate) using a well-known method. In this embodiment, the detection light emitted by each of LEDs 21a, 21b, and 21c is green light that is easily absorbed by hemoglobin in the blood, for example, visible light with a wavelength of 520 nm to 530 nm.

[0021] The electronic device 1 of this embodiment, configured as described above, is provided with multiple operation modes for different applications, which can be selectively set by the user. While the electronic device 1 is operating in one of the operation modes, the CPU 11 executes various processes according to the currently selected operation mode based on a program stored in the ROM 12. While the electronic device 1 is worn on the user's wrist, various pieces of information, including the user's motion information and biometric information, are acquired using the acceleration sensor 18, magnetic sensor 19, and pulse wave sensor 20 and recorded in the RAM 13. Some of this information is displayed on the display device 15. The electronic device 1 also has an operation mode that measures the user's heart rate at regular intervals (e.g., every minute) and sequentially records and displays the measurement results, i.e., the user's biometric information.

[0022] Furthermore, while the electronic device 1 is in operation, the CPU 11 constantly determines whether the electronic device 1 is being worn on the user's arm. This determination is made using the acceleration sensor 18 described above. More specifically, a large amount of acceleration transition data of the device main body 2 when the electronic device 1 is worn on the arm and when it is removed from the arm, as well as a large amount of acceleration transition data of the device main body 2 during other uses, are acquired in advance, and a classifier (e.g., a support vector machine or a neural network) is generated by supervised machine learning using the acquired acceleration transition data. The classifier is then trained to determine whether input acceleration transition data of the device main body 2 is acceleration transition data when the electronic device 1 is worn on the arm or removed from the arm.

[0023] 3 at a predetermined cycle of operation in parallel with the above-described process during operation of the electronic device 1. That is, FIG. 3 is a flowchart showing the LED control process by the CPU 11, which is mainly related to the light emission of the LEDs 21a, 21b, and 21c of the pulse wave sensor 20.

[0024] In this process, the CPU 11 first determines whether the electronic device 1 is being worn on the user's wrist (step SA1). This determination is made based on the result of the determination operation that is constantly performed as described above. That is, the CPU 11 determines whether the electronic device 1 was being worn in the immediately preceding determination result. If the electronic device 1 is being worn (step SA1: YES), the CPU 11 then determines whether that point in time is a heartbeat measurement timing (step SA2). The heartbeat measurement timing is the timing for performing the heartbeat measurement at regular intervals (for example, every minute) as described above. If the point in time is not a heartbeat measurement timing (step SA2: YES), the CPU 11 ends the process.

[0025] On the other hand, if the current time is the timing for measuring the heart rate (step SA2: YES), CPU 11 causes each of LEDs 21a, 21b, and 21c to emit light for a certain period of time in a detection pattern for acquiring a pulse wave (step SA3), and then ends the process. In step SA3, CPU 11 causes each of LEDs 21a, 21b, and 21c to emit light for a certain period of time at a predetermined brightness suitable for acquiring a pulse wave. While each of LEDs 21a, 21b, and 21c is emitting light, light reflected from the user's wrist is received by photodiode 22, and CPU 11 obtains a detection signal from pulse wave sensor 20 corresponding to the amount of received light as pulse wave data. Then, CPU 11 calculates the heart rate based on the pulse wave data, stores it in RAM 13, and displays it on display device 15.

[0026] On the other hand, if the electronic device 1 is not in a worn state (step SA1: NO), the CPU 11 determines whether the electronic device 1 is being charged by determining the operating state of the power supply unit 23 (step SA4). If the electronic device 1 is being charged (step SA4: YES), the CPU 11 causes the LEDs 21a, 21b, and 21c to light up in a charging notification pattern indicating that the electronic device 1 is being charged (step SA5), and ends the process. In step SA5, the CPU 11 causes the LEDs 21a, 21b, and 21c to start emitting light in a light pattern indicating that the electronic device 1 is being charged. In this case, the light emission pattern of the LEDs 21a, 21b, and 21c is lit at a brightness sufficient to indicate that the electronic device 1 is being charged, and the brightness in this case is lower than the brightness when the LEDs 21a, 21b, and 21c are made to emit light in the process of step AS3.

[0027] If the electronic device 1 is not in the worn state (step SA1: NO) and is not being charged (step SA4: NO), the CPU 11 turns off the LEDs 21a, 21b, and 21c (step SA5) and ends the process. That is, if the LEDs 21a, 21b, and 21c were previously lit, the CPU 11 stops the LEDs from emitting light, and if the LEDs 21a, 21b, and 21c were not lit, the CPU 11 maintains the lit state.

[0028] As described above, in the electronic device 1 of this embodiment, when the electronic device is in a charging state, the CPU 11 lights up the LEDs 21a, 21b, and 21c of the pulse wave sensor 20. This allows the LEDs 21a, 21b, and 21c to function as indicators for reporting the charging state. Therefore, the electronic device 1 does not need a dedicated LED for reporting the charging state, allowing for a smaller circuit board size and greater design flexibility. At the same time, the number of steps required for mounting electronic components on the circuit board is reduced, thereby reducing the cost of the electronic device 1. Furthermore, because the brightness of the LEDs 21a, 21b, and 21c when functioning as indicators is much lower than when measuring heart rates, there is no unnecessary power consumption, as would be the case, for example, when displaying the charging state on the display device 15. Therefore, the electronic device 1 can maintain its reporting function without increasing the power consumption associated with reporting the charging state.

[0029] Next, notification processing executed by the CPU 11 at specific timing when a notification to the user is required in the electronic device 1 will be described with reference to the flowchart in Fig. 4. This notification processing is processing for making a temporary notification at specific timing, and specific types of notification include, for example, a notification of an incoming call on the smartphone or a notification of a received message on an SNS (Social Networking Service) when the electronic device 1 is connected (paired) with a smartphone via BLE.

[0030] At the specific timing, CPU 11 first determines whether electronic device 1 is being charged by determining the operating state of power supply unit 23. If it is being charged (step SB1: YES), CPU 11 displays text information, graphics, etc. indicating the type of notification on the screen of display device 15, i.e., display unit 3 (step SB2), and ends the process. This allows the user to be notified of incoming calls, message notifications, etc. Note that when charging is in progress, LEDs 21a, 21b, and 21c of pulse wave sensor 20 are lit in a charging notification pattern in accordance with the LED control process described above.

[0031] On the other hand, if the electronic device 1 is not being charged (step SB1: NO), the CPU 11 further checks whether the electronic device 1 is being worn on the user's wrist based on the amount of light received by the photodiode 22 without turning on the LEDs 21a, 21b, and 21c of the pulse wave sensor 20 (step SB3). At this time, if the amount of light received by the photodiode 22 is equal to or less than a threshold, the CPU 11 determines that the external light is being blocked by the user's wrist and therefore is hardly received by the photodiode 22, and determines that the electronic device 1 is being worn. If the amount of light received is greater than the threshold, the CPU 11 determines that the external light is not being blocked by the user's wrist and is being received by the photodiode 22, and determines that the electronic device 1 is not being worn. In other words, the CPU 11 re-determines whether the electronic device 1 is being worn based on information different from that used in the steady-state determination described above. If it is determined that the electronic device 1 is being worn (step SB3: YES), even if the LEDs 21a, 21b, and 21c are turned on to notify the user of an incoming call or message, the user will not notice because they are blocked by the wrist. Therefore, the CPU 11 causes the display device 15 (display unit 3) to display text information, figures, etc. indicating the type of notification (step SB2), just as when the electronic device 1 is being charged, and ends the processing.

[0032] On the other hand, if the CPU 11 determines that the electronic device 1 is not being worn (step SB3: NO), it first determines in advance the light emission pattern of each of the LEDs 21a, 21b, and 21c of the pulse wave sensor 20 according to the type of notification to the user (step SB4). The light emission pattern determined here is one of a plurality of light emission patterns prepared in advance, and is a pattern determined in advance corresponding to a plurality of types of notification. Examples of the light emission pattern include simultaneous light emission or simultaneous blinking of the LEDs 21a, 21b, and 21c, or sequential light emission in a predetermined order or randomly. Note that the correspondence between the type of notification and the light emission pattern does not need to be one-to-one, and a certain light emission pattern may correspond to a plurality of types of notification.

[0033] Then, the CPU 11 causes each of the LEDs 21a, 21b, and 21c to emit light in the determined light-emitting pattern (step SB5). That is, each of the LEDs 21a, 21b, and 21c starts emitting light in a specific light-emitting pattern. The brightness of each of the LEDs 21a, 21b, and 21c at this time is equal to or higher than the brightness of the detection pattern for acquiring a pulse wave during heart rate measurement. This allows the user to be notified of an incoming call, message, or the like by the high-brightness light emitted by each of the LEDs 21a, 21b, and 21c even when the user is not wearing the electronic device 1, i.e., even when the user is not paying attention to the display unit 3.

[0034] Thereafter, the CPU 11 continues to cause each of the LEDs 21a, 21b, and 21c to emit light in the determined light emission pattern until the user performs an operation to stop the notification, for example, by operating one of the multiple button switches 4, 5, and 6 or by touching the display unit 3 (step SB6: NO), and when the user performs an operation to stop the notification (step SB6: YES), the CPU 11 stops the emission of light from each of the LEDs 21a, 21b, and 21c (step SB7) and terminates the processing.

[0035] As described above, in the electronic device 1 of this embodiment, when a temporary notification is made at a specific timing, the CPU 11 causes the LEDs 21a, 21b, and 21c of the pulse wave sensor 20 to emit light, thereby enabling the notification to be made more reliably even in a situation where the user is not paying attention to the display unit 3. This makes it possible to highly likely avoid a situation where power is wasted due to the notification operation, as occurs when temporary notifications at specific timings are made by the display device 15. This ensures the notification function of the electronic device 1 without incurring an increase in power consumption due to the temporary notification operation at specific timings.

[0036] Furthermore, in the electronic device 1, temporary notification by lighting up the LEDs 21a, 21b, and 21c of the pulse wave sensor 20 is performed only when the electronic device 1 is in a non-wearing state, i.e., not worn by the user. Therefore, unnecessary notification operations in the non-wearing state can be eliminated.

[0037] Furthermore, in the electronic device 1, the light emission pattern of each LED 21a, 21b, 21c during notification operation is a specific light emission pattern determined in accordance with the type of notification, and therefore the user can be informed of the specific type of notification by the difference in the light emission pattern.

[0038] In this embodiment, the LEDs 21a, 21b, and 21c emit green light, but the color of the emitted light may be red. The LEDs 21a, 21b, and 21c may be two types: one that emits green light and one that emits red light. In this case, the LEDs that emit light for temporary notifications may be LEDs with a color that is determined according to the type of notification, allowing the user to identify the type of notification by the color of the emitted light.

[0039] Furthermore, when the LEDs 21a, 21b, and 21c are illuminated for a temporary notification, their brightness may be varied depending on the inclination of the electronic device 1 and the surrounding environment by varying the drive current or by varying the duty ratio. That is, when the electronic device 1 is not worn, the electronic device 1 is often placed in an arbitrary location. In this case, the greater the inclination of the electronic device 1 relative to the horizontal plane, i.e., the closer the optical axis of the light emitted by each of the LEDs 21a, 21b, and 21c is to the vertical, the less likely the user will perceive the light emitted by each of the LEDs 21a, 21b, and 21c. Therefore, when the LEDs 21a, 21b, and 21c are illuminated for a temporary notification, the inclination of the electronic device 1 relative to the horizontal plane is detected in advance using an acceleration sensor 18, etc., and the brightness of each of the LEDs 21a, 21b, and 21c is set higher as the inclination of the electronic device 1 decreases. This makes it easier for the user to perceive the light emitted by each of the LEDs 21a, 21b, and 21c.

[0040] Furthermore, when the surroundings of the electronic device 1 are dark, the light emitted by the LEDs 21a, 21b, and 21c is easily recognized by the user even if the brightness of each LED is low. Therefore, for example, by checking the brightness of the surroundings based on the amount of external light received by the photodiode 22, and setting the brightness of each LED 21a, 21b, and 21c to be lower as the surroundings of the electronic device 1 are darker, it is possible to reduce power consumption associated with temporary notification.

[0041] Also, the electronic device 1 has been described here in which the LEDs 21a, 21b, and 21c, together with the photodiode 22, constitute a pulse wave sensor 20, i.e., an optical sensor for acquiring biometric information of a user. However, the present invention is not limited to this, and can be applied to any electronic device as long as it has a light-emitting element such as an LED that emits light for acquiring information. In this case, the number of light-emitting elements such as LEDs, the shape of the electronic device, and the use of the electronic device are also arbitrary. The present invention can also be applied to a barcode (two-dimensional code) reader used to read barcodes (two-dimensional codes), for example.

[0042] The above describes the embodiments of the present invention and their modifications, but these can be modified as needed within the scope of the effects of the present invention, and modified embodiments are also included in the scope of the inventions described in the claims and inventions equivalent to those inventions. The inventions originally described in the claims of this application are appended below. [Claim 1] A control device for an electronic device, characterized in that it is provided with a processing unit that causes a light-emitting element provided in the electronic device to emit light for allowing a light-receiving element to acquire information, to emit alert light for notifying a user of the electronic device. [Claim 2] The electronic device control device according to claim 1, characterized in that the light-emitting element is included together with the light-receiving element in an optical sensor that detects biometric information of a user wearing the electronic device, and is provided in the electronic device. [Claim 3] 3. The electronic device control device according to claim 1, wherein the processing unit causes the light emitting element to emit the notification light at a luminance different from the luminance of the light for causing the light receiving element to acquire information. [Claim 4] The control device for an electronic device according to claim 2 or 3, characterized in that the processing unit determines whether the electronic device is worn by a user, and causes the light-emitting element to emit the notification light on the condition that the electronic device is not worn by a user, i.e., in an unworn state. [Claim 5] 5. The control device for an electronic device according to claim 1, wherein the notification given to the user of the electronic device includes a notification indicating that the electronic device is being charged. [Claim 6] 6. The control device for an electronic device according to claim 1, wherein the notification given to the user of the electronic device includes a notification given temporarily at a specific timing. [Claim 7] The control device for an electronic device described in any one of claims 1 to 6, characterized in that the processing unit causes the light-emitting element to emit notification light in an emission pattern corresponding to the type of notification that the electronic device makes to the user. [Claim 8] The control device for an electronic device described in any one of claims 1 to 7, characterized in that the processing unit causes the light-emitting element to emit light for notification in a light-emitting pattern that corresponds to the type of notification that the electronic device makes to the user and that differs in either blinking form or light color. [Claim 9] A method for controlling an electronic device, comprising: causing a light-emitting element provided in the electronic device, which emits light for obtaining information, to emit light for notifying a user of the electronic device. [Claim 10] A control program that causes a computer to realize a control function that causes a light-emitting element provided in an electronic device that emits light for obtaining information to emit an alert light to notify the user of the electronic device. [Claim 11] a device body provided with a light emitting element that emits light for acquiring information; a processing unit that causes the light emitting element to emit light for notifying a user; An electronic device comprising: [Explanation of symbols]

[0043] 1 Electronic equipment 2. Device body 2a Back cover 3 Display section 7 Protrusion 8 Light receiving section 9a, 9b, 9c Light-emitting part 11 CPU 12 ROM 13 RAM 20 Pulse wave sensor 21a First LED 21b Second LED 21c Third LED 22 Photodiode 23 Power supply section

Claims

1. An electronic device including a light-emitting element and a control unit, The light-emitting element is a light-emitting element that emits light to allow the light-receiving element to acquire information; an optical sensor for detecting biological information of a user wearing the electronic device, the optical sensor being included together with the light receiving element; The control unit If the amount of light received by the light receiving element is equal to or less than a threshold, it is determined that the electronic device is not being worn by the user, and the light emitting element is caused to emit light in a first pattern for acquiring biometric information of the user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user, and the light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user. An electronic device characterized by:

2. The notification given to the user of the electronic device includes a notification given temporarily at a specific timing.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

3. The control unit causes the light emitting element to emit light for notification in a light emitting pattern corresponding to a type of notification that the electronic device will make to a user.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

4. The control unit causes the light emitting element to emit light for notification in a light emitting pattern that corresponds to a type of notification that the electronic device makes to a user and that differs in either a blinking form or a light emitting color.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

5. A method for controlling an electronic device including a light-emitting element and a control unit, The light-emitting element is a light-emitting element that emits light to allow the light-receiving element to acquire information; an optical sensor for detecting biological information of a user wearing the electronic device, the optical sensor being included together with the light receiving element; If the amount of light received by the light receiving element is equal to or less than a threshold, it is determined that the electronic device is not being worn by the user, and the light emitting element is caused to emit light in a first pattern for acquiring biometric information of the user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user, and the light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user. A method for controlling an electronic device.

6. An electronic device comprising a light-emitting element and a control unit, wherein the light-emitting element is a light-emitting element that emits light to cause a light-receiving element to acquire information, and a computer of the electronic device, which is included together with the light-receiving element in an optical sensor that detects biological information of a user wearing the electronic device, If the amount of light received by the light receiving element is equal to or less than a threshold, it is determined that the electronic device is not being worn by the user, and the light emitting element is caused to emit light in a first pattern for acquiring biometric information of the user; If the amount of light received by the light receiving element exceeds a threshold, it is determined that the electronic device is being worn by a user, and the light emitting element is caused to emit light in a second pattern different from the first pattern for notifying the user. A control program comprising:

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