Patent Publication Number: US-2023164703-A1

Title: Method for controlling signal and wearable device supporting the same

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a bypass continuation of International Application No. PCT/KR2022/017747, filed on Nov. 11, 2022, in the Korean Intellectual Property Receiving Office, which is based on and claims priority to Korean Patent Application No. 10-2022-0005954, filed on Jan. 14, 2022, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2021-0155824, filed on Nov. 12, 2021, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in their entireties. 
    
    
     BACKGROUND 
     1. Field 
     The disclosure relates generally to a method for controlling a signal and a wearable device supporting the same. 
     2. Description of Related Art 
     As the mobile market reaches maturity, a wearable electronic device capable of interworking with an existing mobile device is developed. The wearable device operates while being worn on (or attached to) a user&#39;s body part, and may thus provide various pieces of information about the front of the user. For example, the wearable device worn on the user&#39;s body part may transmit a signal toward the front, may detect an object disposed in the front, based on a response signal reflected from the object, and may determine the position of the object. 
     When the position of the object is determined, the wearable device may adjust the strength of a signal transmitted toward the front. For example, the wearable device may adjust the strength of the signal gradually (or by stages) such that the transmitted signal reaches a distance corresponding to the determined position of the object. 
     However, the wearable device does not provide a solution in which a movement of the wearable device is reflected in adjusting the strength of the transmitted signal. In this case, the wearable device repeats a series of processes of transmitting a signal with a maximum strength to the front corresponding to a movement of the wearable device whenever the movement is detected and gradually adjusting the strength of the signal according to the position of a detected object. The series of processes repeated according to the movement of the wearable device may increase power consumption of the wearable device and may reduce available time of the wearable device. 
     SUMMARY 
     Provided are a signal control method and a wearable device supporting the same for adaptively adjusting the strength of a signal for detecting an object, based on a movement of the wearable device. 
     Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments. 
     According to an aspect of the disclosure, a wearable device may include a first sensor, at least one second sensor, and at least one processor configured to control the first sensor to transmit a first signal with a first strength, identify a position of a first object based on a first response signal to the first signal, based on the identified position of the first object, control the first sensor to transmit a second signal with a second strength corresponding to a first distance between the wearable device and the first object, detect, by the at least one second sensor, a movement of the wearable device, the movement of the wearable device including at least one of a position change of the wearable device and a direction change of the wearable device, and determine whether to adjust the second strength, based on at least one of the movement of the wearable device and the position of the first object. 
     The at least one processor may be further configured to identify, by the at least one second sensor, whether the wearable device is moving in a first moving direction, control the first sensor to transmit the first signal in a first direction toward the first object based on identifying that the wearable device is moving in the first moving direction, and control the first sensor to transmit a third signal corresponding to a second distance between a position of the wearable device and the first object and having a different strength from the first strength. 
     The at least one processor may be further configured to control the first sensor to transmit the third signal based on whether a second response signal to the first signal is received from a second object different from the first object. 
     The at least one processor may be further configured to identify, by the at least one second sensor, whether the wearable device is moving in a second moving direction opposite to the first moving direction, and control the first sensor to transmit a fourth signal corresponding to a third distance between the position of the wearable device and the first object and having a different strength from the first strength based on identifying that the wearable device is moving in the second moving direction. 
     The first sensor may include a plurality of light emitting units, and the at least one processor may be further configured to identify, by the at least one second sensor, whether the wearable device is turning in a first turning direction, control the first sensor such that at least one first light emitting unit of the plurality of light emitting units transmits the second signal in a second direction toward the first object based on identifying that the wearable device is turning in the first turning direction, and control the first sensor such that at least one second light emitting unit different from the at least one first light emitting unit among the plurality of light emitting units transmits the first signal in a direction different from the second direction toward the first object. 
     The at least one processor may be further configured to identify, by the at least one second sensor, whether the wearable device is turning in a second turning direction opposite to the first turning direction, control the first sensor such that at least one third light emitting unit of the plurality of light emitting units transmits the second signal with the second strength in a third direction toward the first object based on identifying that the wearable device is turning in the second turning direction, and control the first sensor such that at least one fourth light emitting unit different from the at least one third light emitting unit among the plurality of light emitting units transmits the first signal with in a direction different from the third direction toward the first object. 
     The first signal transmitted in the direction different from the third direction may form a first sensing range not overlapping with a second sensing range formed by the second signal. 
     The wearable device may be in a state in which a position of the wearable device is fixed when the wearable device is turning it at least one of the first turning direction and the second turning direction. 
     According to an aspect of the disclosure, a signal control method of a wearable device may include controlling a first sensor to transmit a first signal with a first strength, identifying a position of a first object, based on a first response signal to the first signal, based on the identified position of the first object, controlling the first sensor to transmit a second signal with a second strength corresponding to a first distance between the wearable device and the first object, detecting, by at least one second sensor, a movement of the wearable device, the movement of the wearable device including at least one of a position change of the wearable device and a direction change of the wearable device, and determining whether to adjust the second strength, based on at least one of the movement of the wearable device and the position of the first object. 
     The method may further include identifying, by the at least one second sensor, whether the wearable device is moving in a first moving direction, controlling the first sensor to transmit the first signal in a first direction toward the first object based on identifying that the wearable device is moving in the first moving direction, and controlling the first sensor to transmit a third signal corresponding to a second distance between a position of the wearable device and the first object and having a different strength from the first strength. 
     Controlling of the first sensor to transmit the third signal may be performed based on whether a second response signal to the first signal is received from a second object different from the first object. 
     The method may further include identifying, by the at least one second sensor, whether the wearable device is moving in a second moving direction opposite to the first moving direction, and controlling the first sensor to transmit a fourth signal corresponding to a third distance between the position of the wearable device and the first object and having a different strength from the first strength based on identifying that the wearable device is moving in the second moving direction. 
     The method may further include identifying, by the at least one second sensor, whether the wearable device is turning in a first turning direction, controlling the first sensor such that that at least one first light emitting unit of a plurality of light emitting units of the first sensor transmits the second signal in a second direction toward the first object based on identifying that the wearable device is turning in the first turning direction, and controlling the first sensor such that at least one second light emitting unit different from the at least one first light emitting unit among the plurality of light emitting units transmits the first signal in a direction different from the second direction toward the first object. 
     The method may further include identifying, by the at least one second sensor, whether the wearable device is turning in a second turning direction opposite to the first turning direction, controlling the first sensor such that at least one third light emitting unit of the plurality of light emitting units transmits the second signal in a third direction toward the first object based on identifying that the wearable device is turning in the second turning direction, and controlling the first sensor such that at least one fourth light emitting unit different from the at least one third light emitting unit among the plurality of light emitting units transmits the first signal in a direction different from the third direction toward the first object. 
     The first signal transmitted in the direction different from the third direction toward the first object may form a first sensing range not overlapping with a second sensing range formed by the second signal. 
     According to an aspect of the disclosure, an electronic device may include a first sensor, at least one second sensor, and at least one processor configured to control the first sensor to transmit a first signal with a first strength in a first direction, identify a position of a first object in the first direction, based on a response signal to the first signal, based on the identified position of the first object, control the first sensor to transmit a second signal with a second strength corresponding to a first distance between the electronic device and the first object in the first direction, detect, by the at least one second sensor, a movement of the electronic device, the movement of the electronic device including at least one of moving of the electronic device and turning of the electronic device, determine a second distance between the electronic device and the first object, based on detecting the movement of the electronic device, and control the first sensor to transmit a third signal corresponding to the second distance and having a third strength different from the first strength in a second direction toward the first object based on determined second distance being equal to or greater than the first distance. 
     The at least one processor may be further configured to control the first sensor to transmit the first signal in a third direction different from the second direction. 
     The at least one processor may be further configured to control the first sensor to transmit the first signal in the second direction based on the determined second distance being less than the first distance. 
     When the movement of the electronic device is a direction change of the electronic device, the third strength may be the same as the second strength. 
     The first sensor may include a plurality of light emitting units, and the at least one processor may be further configured to control the first sensor to transmit the third signal in the second direction by at least one first light emitting unit among the plurality of light emitting units, and transmit the first signal in a third direction different from the second direction by at least one second light emitting unit different from the at least one first light emitting unit among the plurality of light emitting units based on the second direction being different from the first direction. 
     A signal control method and a wearable device supporting the same according to various embodiments may adaptively adjust the strength of a signal for detecting an object, based on a movement of the wearable device, thereby providing a solution for reducing power consumption of the wearable device and increasing available time of the wearable device. 
     In addition, various effects directly or indirectly identified through the disclosure may be provided. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a diagram of an electronic device in a network environment according to an embodiment; 
         FIG.  2    is a diagram of a component of a wearable device according to an embodiment; 
         FIG.  3    is a flowchart of a signal control method of a wearable device according to an embodiment; 
         FIG.  4    is a flowchart of a signal control method of a wearable device after a position change according to an embodiment; 
         FIG.  5 A  is a diagram of a sensing range of a wearable device after a position change in a forward direction according to an embodiment; 
         FIG.  5 B  is a diagram of a sensing range of a wearable device after a position change in a backward direction according to an embodiment; 
         FIG.  6    is a flowchart of a signal control method of a wearable device after a direction change according to an embodiment; 
         FIG.  7 A  is a diagram of a sensing range of a wearable device after a direction change in a left direction according to an embodiment; 
         FIG.  7 B  is a diagram of a sensing range of a wearable device after a direction change in a right direction according to an embodiment; 
         FIG.  7 C  is a diagram of a sensing range of a wearable device corresponding to each of a plurality of objects according to an embodiment; 
         FIG.  8    is a diagram of a power consumption level when the strength of a signal is adjusted based on a movement of a wearable device according to an embodiment; and 
         FIG.  9    is a diagram of a wearable device according to an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, various embodiments will be described with reference to the accompanying drawings. However, this is not intended to limit the specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments are included. 
     In describing the drawings, the same reference numerals may be used to refer to the same or corresponding elements. 
       FIG.  1    is a diagram of an electronic device in a network environment according to an embodiment. 
     Referring to  FIG.  1   , the electronic device  101  in the network environment  100  may communicate with an electronic device  102  via a first network  198  (e.g., a short-range wireless communication network), or at least one of an electronic device  104  or a server  108  via a second network  199  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  101  may communicate with the electronic device  104  via the server  108 . According to an embodiment, the electronic device  101  may include a processor  120 , memory  130 , an input module  150 , a sound output module  155 , a display module  160 , an audio module  170 , a sensor module  176 , an interface  177 , a connecting terminal  178 , a haptic module  179 , a camera module  180 , a power management module  188 , a battery  189 , a communication module  190 , a subscriber identification module (SIM)  196 , or an antenna module  197 . In some embodiments, at least one of the components (e.g., the connecting terminal  178 ) may be omitted from the electronic device  101 , or one or more other components may be added in the electronic device  101 . In some embodiments, some of the components (e.g., the sensor module  176 , the camera module  180 , or the antenna module  197 ) may be implemented as a single component (e.g., the display module  160 ). 
     The processor  120  may execute, for example, software (e.g., a program  140 ) to control at least one other component (e.g., a hardware or software component) of the electronic device  101  coupled with the processor  120 , and may perform various data processing or computation. According to one embodiment, as at least part of the data processing or computation, the processor  120  may store a command or data received from another component (e.g., the sensor module  176  or the communication module  190 ) in volatile memory  132 , process the command or the data stored in the volatile memory  132 , and store resulting data in non-volatile memory  134 . According to an embodiment, the processor  120  may include a main processor  121  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  123  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor  121 . For example, when the electronic device  101  includes the main processor  121  and the auxiliary processor  123 , the auxiliary processor  123  may be adapted to consume less power than the main processor  121 , or to be specific to a specified function. The auxiliary processor  123  may be implemented as separate from, or as part of the main processor  121 . 
     The auxiliary processor  123  may control at least some of functions or states related to at least one component (e.g., the display module  160 , the sensor module  176 , or the communication module  190 ) among the components of the electronic device  101 , instead of the main processor  121  while the main processor  121  is in an inactive (e.g., sleep) state, or together with the main processor  121  while the main processor  121  is in an active state (e.g., executing an application). According to an embodiment, the auxiliary processor  123  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  180  or the communication module  190 ) functionally related to the auxiliary processor  123 . According to an embodiment, the auxiliary processor  123  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  101  where the artificial intelligence is performed or via a separate server (e.g., the server  108 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  130  may store various data used by at least one component (e.g., the processor  120  or the sensor module  176 ) of the electronic device  101 . The various data may include, for example, software (e.g., the program  140 ) and input data or output data for a command related thereto. The memory  130  may include the volatile memory  132  or the non-volatile memory  134 . 
     The program  140  may be stored in the memory  130  as software, and may include, for example, an operating system (OS)  142 , middleware  144 , or an application  146 . 
     The input module  150  may receive a command or data to be used by another component (e.g., the processor  120 ) of the electronic device  101 , from the outside (e.g., a user) of the electronic device  101 . The input module  150  may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen). 
     The sound output module  155  may output sound signals to the outside of the electronic device  101 . The sound output module  155  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  160  may visually provide information to the outside (e.g., a user) of the electronic device  101 . The display module  160  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  160  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  170  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  170  may obtain the sound via the input module  150 , or output the sound via the sound output module  155  or a headphone of an external electronic device (e.g., an electronic device  102 ) directly (e.g., wiredly) or wirelessly coupled with the electronic device  101 . 
     The sensor module  176  may detect an operational state (e.g., power or temperature) of the electronic device  101  or an environmental state (e.g., a state of a user) external to the electronic device  101 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  176  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  177  may support one or more specified protocols to be used for the electronic device  101  to be coupled with the external electronic device (e.g., the electronic device  102 ) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface  177  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     A connecting terminal  178  may include a connector via which the electronic device  101  may be physically connected with the external electronic device (e.g., the electronic device  102 ). According to an embodiment, the connecting terminal  178  may include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  179  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  179  may include, for example, a motor, a piezoelectric element, or an electric stimulator. 
     The camera module  180  may capture a still image or moving images. According to an embodiment, the camera module  180  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  188  may manage power supplied to the electronic device  101 . According to one embodiment, the power management module  188  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). 
     The battery  189  may supply power to at least one component of the electronic device  101 . According to an embodiment, the battery  189  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  190  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  101  and the external electronic device (e.g., the electronic device  102 , the electronic device  104 , or the server  108 ) and performing communication via the established communication channel. The communication module  190  may include one or more communication processors that are operable independently from the processor  120  (e.g., the AP) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module  190  may include a wireless communication module  192  (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module  194  (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network  198  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network  199  (e.g., a long-range communication network, such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  192  may identify and authenticate the electronic device  101  in a communication network, such as the first network  198  or the second network  199 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  196 . 
     The wireless communication module  192  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  192  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  192  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module  192  may support various requirements specified in the electronic device  101 , an external electronic device (e.g., the electronic device  104 ), or a network system (e.g., the second network  199 ). According to an embodiment, the wireless communication module  192  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC. 
     The antenna module  197  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  101 . According to an embodiment, the antenna module  197  may include an antenna including a radiating element composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  197  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  198  or the second network  199 , may be selected, for example, by the communication module  190  (e.g., the wireless communication module  192 ) from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  190  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  197 . 
     According to various embodiments, the antenna module  197  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, a RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. 
     At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  101  and the external electronic device  104  via the server  108  coupled with the second network  199 . Each of the electronic devices  102  or  104  may be a device of a same type as, or a different type, from the electronic device  101 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more of the external electronic devices  102 ,  104 , or  108 . For example, if the electronic device  101  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  101 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  101 . The electronic device  101  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  101  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In another embodiment, the external electronic device  104  may include an internet-of-things (IoT) device. The server  108  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  104  or the server  108  may be included in the second network  199 . The electronic device  101  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
     Hereinafter, a wearable device mentioned with reference to the drawings may correspond to the electronic device  101  of  FIG.  1   , or may include at least one of the components of the electronic device  101 . 
       FIG.  2    is a diagram of components of a wearable device according to an embodiment. 
     Referring to  FIG.  2   , the wearable device  200  (e.g., the electronic device  101  of  FIG.  1   ) according to an embodiment may include a first sensor  210 , at least one second sensor  220 , at least one processor  230  (e.g., the processor  120  of  FIG.  1   ), and a memory  240  (e.g., the memory  130  of  FIG.  1   ). In various embodiments, the wearable device  200  may omit at least one of the foregoing components, or may further include at least one other component. For example, the wearable device  200  may further include a camera module (e.g., the camera module  180  of  FIG.  1   ) for obtaining at least one piece of data (e.g., image data) related to an operation of the wearable device  200 . 
     According to an embodiment, the first sensor  210  may transmit a signal for detecting an object, and may receive a response signal (or a reflected signal) to the transmitted signal. For example, the first sensor  210  may transmit a signal with a first strength (e.g., a signal with a maximum strength) capable of covering a specified sensing range toward the front of the wearable device  200  worn on (or attached to) a user&#39;s body part, and may receive a response signal reflected from an object disposed within the sensing range. 
     According to an embodiment, the processor  230  may be configured to control the first sensor  210  and the second sensor  220  to perform various operations. According to an embodiment, the first sensor  210  may adjust the signal with the first strength. For example, after transmitting the signal with the first strength in a first direction, the first sensor  210  may transmit a signal with a strength different from the first strength in the same direction as the first direction, in a direction adjacent to the first direction, and/or in a direction different from the first direction. 
     According to various embodiments, the first sensor  210  may be a sensor module including a light emitting unit and a light receiving unit to transmit and receive a signal. For example, the first sensor  210  may include at least one of a light detection and ranging (LIDAR) sensor, a HeT camera, or a see-through camera. In various embodiments, the first sensor  210  may include a plurality of light emitting units and a plurality of light receiving units. The plurality of light emitting units may transmit signals for detecting an object in different directions, respectively. The plurality of light receiving units may receive response signals to signals directed in different directions, respectively. 
     According to various embodiments, the first sensor  210  may include a plurality of device groups. The plurality of device groups may be arranged in a grid form. Each of the plurality of device groups may include at least one transmitter (Tx) device and at least one receiver (Rx) device corresponding to the at least one Tx device. For example, a first device group may include at least one first Tx device and at least one first Rx device, and a second device group different from the first device group may include at least one second Tx device and at least one second Rx device. 
     According to various embodiments, the first sensor  210  may transmit Tx signals toward the front of the wearable device  200  using Tx devices of the plurality of device groups, and may detect the position of an object, based on a transmission time of the Tx signals and a reception time of Rx signals received through Rx devices of the plurality of device groups by reflection on the object. 
     According to various embodiments, the Tx devices of the plurality of device groups may transmit signals with different strengths respectively. For example, the at least one first Tx device of the first device group may transmit a signal with the first strength, and the at least one second Tx device of the second device group may transmit a signal with a second strength different from the first strength while the at least one Tx device of the first device group may transmit the signal with the first strength. 
     According to an embodiment, the at least one second sensor  220  may detect a movement of the wearable device  200 . For example, the at least one second sensor  220  may detect the wearable device  200  worn on (or attached to) the user&#39;s body part changing a position forward or backward and/or changing a direction by turning to the left or right. The position change and the direction change may be independent of each other, or may be associated with each other. In an embodiment, the at least one second sensor  220  may periodically monitor the foregoing movement of the wearable device  200  while the first sensor  210  transmits a signal and/or receives a response signal to the signal. 
     According to various embodiments, when detecting a movement of the wearable device  200  while the first sensor  210  transmits a signal and/or receives a response signal to the signal, the at least one second sensor  220  may transmit data corresponding to the detected movement to the at least one processor  230 . The data transmitted to the at least one processor  230  may function as a trigger to adjust the strength of a signal transmitted from the first sensor  210 . 
     According to various embodiments, when detecting a movement of the wearable device  200  while the first sensor  210  does not transmit a signal and/or does not receive a response signal to the signal, the at least one second sensor  220  may transmit data corresponding to the detected movement to the at least one processor  230 . The data transmitted to the at least one processor  230  may function as a trigger to adjust the strength of a signal to be transmitted from the first sensor  210 . 
     According to various embodiments, the at least one second sensor  220  may be a sensor module that detects at least one of the acceleration, slope, and GPS information of the wearable device  200 . For example, the at least one second sensor  220  may include at least one of an inertial measurement unit (IMU) sensor, an acceleration sensor, an angular rate sensor, a geomagnetic sensor, a gyro sensor, and a rotation angle sensor. 
     According to an embodiment, the at least one processor  230  may be electrically connected to the first sensor  210  and the at least one second sensor  220  to transmit to at least one instruction related to a functional operation of the sensors  210  and  220  to the corresponding sensors. In addition, the at least one processor  230  may perform an operation or processing with respect to an electrical signal or a data value transmitted from the sensors  210  and  220 . 
     According to an embodiment, when detecting a movement of the wearable device  200  using the at least one second sensor  220 , the at least one processor  230  may adjust the strength of a signal transmitted from the first sensor  210 , at least based on the detected movement. For example, the at least one processor  230  may adaptively adjust the strength of the signal transmitted from the first sensor  210 , based on at least one of a position change and a direction change of the wearable device  200  detected using the at least one sensor  220  and the position of an object. 
     In an embodiment, as an initial operation, the at least one processor  230  may control the first sensor  210  to transmit a signal with the first strength corresponding to the maximum strength toward the front of the wearable device  200 . The at least one processor  230  may determine the position of an object (e.g., a first object), based on detecting a response signal to the signal with the first strength transmitted from the first sensor  210 . The position of the object may be determined based on a transmission time (TSP) of the signal with the first strength and a reception time (TRR) of the response signal to the signal with the first strength. For example, the at least one processor  230  may calculate a round-trip time (RTT) corresponding to a difference between the transmission time of the signal with the first strength and the reception time of the response signal, and may obtain distance data between the wearable device  200  and the object, based on the RTT. In an embodiment, the at least one processor  230  may store the obtained distance data in the memory  240 , and may use the distance data as a reference value when adjusting the strength of the signal transmitted from the first sensor  210 . 
     In an embodiment, the at least one processor  230  may calculate a first distance between the wearable device  200  and the object, based on the obtained distance data between the wearable device  200  and the object, and may control the first sensor  210  to transmit a signal with the second strength (e.g., a strength less than the first strength) corresponding to the first distance. The signal with the second strength may be a signal with a strength capable of reaching the position of the object from the wearable device  200 . In an embodiment, to detect a change in the distance between the wearable device  200  and the object, the at least one processor  230  may periodically transmit the signal with the second strength in a direction to the position of the object, and may control the first sensor  210  to receive a response signal resulting from reflection of the signal. 
     In an embodiment, the at least one processor  230  may detect a movement of the wearable device  200  using the at least one second sensor  220  while controlling the first sensor  210  to transmit the signal with the second strength. The at least one processor  230  may adjust the signal with the second strength transmitted from the first sensor  210 , based on the detected movement and the distance data between the wearable device  200  and the object. 
     In various embodiments, when the detected movement corresponds to a movement of the wearable device  200  worn on the user&#39;s body part moving forward, the at least one processor  230  may adjust the signal with the second strength transmitted from the first sensor  210  to a signal with the first strength corresponding to the maximum strength. When another object (e.g., a second object different from the first object) is not detected after adjusting the signal with the second strength to the signal with the first strength, the at least one processor  230  may adjust the signal with the second strength transmitted from the first sensor  210 , based on a moving distance determined according to the wearable device  200  moving forward and the distance data. For example, the at least one processor  230  may calculate a second distance by subtracting a distance value of the moving distance determined according to the wearable device  200  moving forward from a distance value of the obtained distance data, and may control the first sensor  210  to transmit a signal with a third strength (e.g., a strength less than the second strength) corresponding to the second distance. 
     In various embodiments, when the detected movement corresponds to a movement of the wearable device  200  worn on the user&#39;s body part moving forward, the at least one processor  230  may at least partly adjust the signal with the second strength transmitted from the first sensor  210  according to a direction. For example, the at least one processor  230  may control the first sensor  210  to transmit the signal with the third strength based on the moving distance determined according to the wearable device  200  moving forward and the distance data in a direction in which the object is present and to transmit the signal with the first strength corresponding to the maximum strength in a different direction. 
     In various embodiments, when the detected movement corresponds to a movement of the wearable device  200  worn on the user&#39;s body part moving backward, the at least one processor  230  may adjust the signal with the second strength transmitted from the first sensor  210 , based on a moving distance determined according to the wearable device  200  moving backward and the distance data. For example, the at least one processor  230  may calculate a third distance by adding a distance value of the moving distance determined according to the wearable device  200  moving backward to the distance value of the obtained distance data, and may control the first sensor  210  to transmit a signal with a fourth strength (e.g., a strength greater than the second strength) corresponding to the third distance. 
     In various embodiments, when the detected movement corresponds to a turning (right turn or left turn) movement of the wearable device  200  worn on the user&#39;s body part, the at least one processor  230  may at least partly adjust the signal with the second strength transmitted from the first sensor  210  according to the sensing range, based on a direction determined according to a turn of the wearable device  200  and the obtained distance data. For example, the at least one processor  230  may control at least one light emitting unit of the plurality of light emitting units of the first sensor  210  to transmit a signal with the second strength in a direction toward the object. In addition, while controlling the at least one light emitting unit, the at least one processor  230  may control at least one different light emitting unit of the plurality of light emitting units to transmit a signal with the first strength in a direction different from the direction toward the object. The at least one light emitting unit and the at least one different light emitting unit may transmit signals with different strengths for substantially the same time. 
     In various embodiments, the processor  230  may determine the distance between the wearable device  200  and the object, based on detecting the movement of the wearable device  200 . The processor  230  may adjust the strength (e.g., the second strength) of the signal transmitted from the first sensor  210 , based on the determined distance. For example, when the determined distance is greater than the distance between the wearable device  200  and the object before the movement of the wearable device  200  is detected, the processor  230  may control the first sensor  210  to transmit a signal based on the determined distance and having a strength (e.g., a strength greater than the second strength) different from the strength of the transmitted signal in a direction toward the first object. In another example, when the determined distance is equal to the distance between the wearable device  200  and the object before the movement of the wearable device  200  is detected, the processor  230  may control the first sensor  210  to transmit a signal having the same strength (e.g., the second strength) as the strength of the transmitted signal in the direction toward the first object. In still another example, when the determined distance is less than the distance between the wearable device  200  and the object before the movement of the wearable device  200  is detected, the processor  230  may control the first sensor  210  to transmit a signal based on the determined distance and having a strength (e.g., a strength less than the second strength) different from the strength of the transmitted signal in the direction toward the object. 
       FIG.  3    is a flowchart of a signal control method of a wearable device according to an embodiment. 
     Referring to  FIG.  3   , the wearable device  200  according to an embodiment may perform operation  310  to operation  350  as the signal control method. 
     Referring to operation  310 , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength. For example, at least one processor  230  may control a first sensor  210  to transmit a signal with a first strength to the front of the wearable device  200 . 
     Referring to operation  320 , the wearable device  200  may detect the position of an object, based on a response signal to the signal with the first strength reflected from the object disposed in front of the wearable device  200 . For example, the at least one processor  230  may calculate an RTT corresponding to a difference between a transmission time (TSP) of the signal with the first strength and a reception time (TRR) of the response signal, and may identify the position of the object by obtaining distance data between the wearable device  200  and the object, based on the RTT. 
     Referring to operation  330 , the wearable device  200  may transmit a signal with a second strength (e.g., a strength less than the first strength) corresponding to a first distance between the wearable device  200  and the object, based on the position of the object. For example, the at least one processor  230  may control the first sensor  210  to transmit a signal with the second strength based on the first distance between the wearable device  200  and the object, based on the distance data between the wearable device  200  and the object obtained in operation  320 . 
     Referring to operation  340 , the wearable device  200  may detect a movement of the wearable device  200  worn on a user&#39;s body part using at least one second sensor  220 . For example, the at least one processor  230  may detect the wearable device  200  changing a position forward or backward and/or changing a direction by turning to the left or right using the at least one second sensor  220  while controlling the first sensor  210  to transmit the signal with the second strength. 
     Referring to operation  350 , the wearable device  200  may adjust the strength of the signal transmitted from the first sensor  210 , based on at least one of a position change and a direction change of the wearable device  200  determined according to the movement and the distance data between the wearable device  200  and the object obtained in operation  320 . For example, the at least one processor  230  may add a value of a moving distance determined according to the wearable device  200  moving forward or moving backward to a distance value of the distance data or may subtract the value of the moving distance from the distance value of the distance data, thereby controlling the first sensor  210  to transmit a signal with a strength corresponding to a distance different from the distance value of the distance data. In another example, the at least one processor  230  may control the first sensor  210  to transmit a signal with a strength at least partly corresponding to the distance value of the distance data corresponding to a turning movement of the wearable device  200 . 
       FIG.  4    is a flowchart of a signal control method of a wearable device after a position change according to an embodiment. 
     Referring to  FIG.  4   , the wearable device  200  according to an embodiment may perform operation  410  to operation  450  as the signal control method after the position change. In various embodiments, operation  410  to operation  450  may be operations performed after operation  330  illustrated in  FIG.  3   . 
     Referring to operation  410 , the wearable device  200  may determine whether a movement of the wearable device  200  worn on the user&#39;s body part corresponds to a forward movement. For example, the at least one processor  230  may identify whether a first movement of the wearable device moving in a first moving direction (e.g., a +x direction of  FIG.  5 A ) is detected using the at least one second sensor  220 . 
     Referring to operation  420 , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength in a first direction toward an object, based on identifying that the movement of the wearable device  200  corresponds to a forward movement. For example, the at least one processor  230  may adjust a signal with a second strength transmitted from the first sensor  210  to the signal with the first strength corresponding to the maximum strength, and may control the first sensor  210  to transmit the adjusted signal with the first strength. In various embodiments, operation  420  may be omitted. 
     Referring to operation  430 , the wearable device  200  may transmit a signal corresponding to a second distance and having a strength different from the first strength in the first direction toward the first object. When no other object is detected after transmitting the signal with the first strength adjusted from the signal with the second strength, the at least one processor  230  may adjust the signal with the second strength transmitted from the first sensor  210 , based on a moving distance determined according to the wearable device  200  moving forward and previously obtained distance data (e.g., first distance data between the wearable device  200  and the object before the movement of the wearable device  200  is detected). For example, the at least one processor  230  may control the first sensor  210  to transmit a signal with a third strength (e.g., a strength less than the second strength) corresponding to a second distance obtained by subtracting a distance value of the moving distance determined according to the wearable device  200  moving forward from a distance value of the obtained distance data. 
     Referring to operation  440 , the wearable device  200  may determine whether the movement of the wearable device  200  worn on the user&#39;s body part corresponds to a backward movement. For example, the at least one processor  230  may identify whether a second movement of the wearable device moving in a second moving direction (e.g., a −x direction of  FIG.  5 A ) is detected using at least one second sensor  220 . 
     Referring to operation  450 , when the movement of the wearable device  200  is identified as a backward movement, the wearable device  200  may adjust the signal with the second strength transmitted from the first sensor  210 , based on a moving distance determined according to the wearable device  200  moving backward and the obtained distance data. For example, the at least one processor may control the first sensor  210  to transmit a signal with a fourth strength (e.g., a strength greater than the second strength) corresponding to a third distance obtained by adding a distance value of the moving distance determined according to the wearable device  200  moving backward to the distance value of the obtained distance data. 
       FIG.  5 A  is a diagram of a sensing range of a wearable device after a position change in a forward direction according to an embodiment. 
     Referring to  FIG.  5 A , the wearable device  200  according to an embodiment may transmit signals with different strengths for detecting an object based on a first state  501   a , a second state  501   b , a third state  501   c , or a fourth state  501   d.    
     Referring to the first state  501   a , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength toward the front of the wearable device  200 . For example, as an initial operation for detecting the position of an object, at least one processor  230  may control a first sensor  210  to transmit the signal with the first strength. The signal with the first strength may form a first sensing range R 1  (e.g., a maximum sensing range). 
     Referring to the second state  501   b , when an object is detected, the wearable device  200  may transmit a signal with the second strength corresponding to a first distance D 1  (e.g., 4 m) between the wearable device  200  and the object in a first direction (e.g., a +x direction) toward the object. For example, when obtaining distance data between the wearable device  200  and the object, based on detecting a response signal (e.g., the signal with the first strength reflected from the object) to the signal with the first strength transmitted from a first sensor  210 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength corresponding to the first distance D 1 , which is a distance value of the obtained distance data. The signal with the second strength may form a second sensing range R 2  (e.g., a sensing range smaller than the maximum sensing range). The obtained distance data may be stored in a memory  240  of the wearable device  200 . 
     Referring to the third state  501   c , the wearable device  200  may adjust the signal with the second strength transmitted in the second state  501   b  to the signal with the first strength corresponding to the maximum strength, based on detecting a first movement M 1  of the wearable device  200 . The first movement M 1  may be a movement of the wearable device  200  moving forward from a first point P 0  to a second point P 1  (e.g., a point 1 m away from the first point P 0 ). The adjusted signal with the first strength may form the first sensing range R 1 . In various embodiments, the first sensing range R 1  may include a sensing range R 2 - 1  partially overlapping with the second sensing range R 2  in the second state  501   b  and a sensing range R 3  not overlapping with the second sensing range R 2 . The wearable device  200  may additionally identify whether another object exists in the overlapping sensing range R 2 - 1  and the non-overlapping sensing range R 3 . In various embodiments, an operation of adjusting the signal with the second strength to the signal with the first strength in the third state  501   c  may be for detecting whether a new object exists in the sensing range (e.g., R 3 ) not overlapping with the existing sensing range (e.g., R 2 ) according to the first movement of the wearable device  200 . In various embodiments, the operation in the third state  501   c  may be omitted. 
     Referring to the fourth state  501   d , the wearable device  200  may transmit a signal with a third strength corresponding to a second distance D 2  (e.g., 3 m) between the wearable device  200  and the object in the first direction (e.g., the +x direction) toward the object, based on identifying that there is no other object in the third state  501   c . For example, the at least one processor  230  may control the first sensor  210  to transmit the signal with the third strength corresponding to the second distance D 2  (e.g., 3 m) obtained by subtracting a distance value (e.g., 1 m) of a moving distance determined according to the first movement M 1  from the distance value (e.g., 4 m) of the obtained distance data. The signal with the third strength may form the sensing range R 2 - 1  overlapping with the second sensing range R 2  in the second state  501   b.    
       FIG.  5 B  is a diagram of a sensing range of a wearable device after a position change in a backward direction according to an embodiment. 
     Referring to  FIG.  5 B , the wearable device  200  according to an embodiment may transmit signals with different strengths for detecting an object based on a first state  502   a , a second state  502   b , or a third state  502   c.    
     Referring to the first state  502   a , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength toward the front of the wearable device  200 . For example, as an initial operation for detecting the position of an object, at least one processor  230  may control a first sensor  210  to transmit the signal with the first strength. The signal with the first strength may form a first sensing range R 1  (e.g., a maximum sensing range). 
     Referring to the second state  502   b , when an object is detected, the wearable device  200  may transmit a signal with the second strength corresponding to a first distance D 1  (e.g., 4 m) between the wearable device  200  and the object in a first direction (e.g., a +x direction) toward the object. For example, when obtaining distance data between the wearable device  200  and the object, based on detecting a response signal to the signal with the first strength transmitted from a first sensor  210 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength corresponding to the first distance D 1 , which is a distance value of the obtained distance data. The signal with the second strength may form a second sensing range R 2  (e.g., a sensing range smaller than the maximum sensing range). The obtained distance data may be stored in a memory  240  of the wearable device  200 . 
     Referring to the third state  502   c , the wearable device  200  may transmit a signal with a third strength corresponding to a third distance D 3  (e.g., 5 m) between the wearable device  200  and the object in the first direction (e.g., a +x direction) toward the object, based on detecting a second movement M 2  of the wearable device  200 . For example, the at least one processor  230  may control the first sensor  210  to transmit the signal with the third strength corresponding to the third distance D 3  (e.g., 5 m) obtained by adding a distance value (e.g., 1 m) of a moving distance corresponding to the second movement M 2  to the distance value (e.g., 4 m) of the obtained distance data. The second movement M 2  may be a movement of moving backward from a first point P 0  to a third point P 2  (e.g., a point 1 m away from the first point P 0 ). The signal with the third strength may form a third sensing range R 3 . The third sensing range R 3  may partially overlap with the second sensing range R 2  in the second state  502   b.    
       FIG.  6    is a flowchart of a signal control method of a wearable device after a direction change according to an embodiment. 
     Referring to  FIG.  6   , the wearable device  200  according to an embodiment may perform operation  610  to operation  660  as the signal control method after direction change. In various embodiments, operation  610  to operation  660  may be operations performed after operation  330  illustrated in  FIG.  3   . 
     Referring to operation  610 , the wearable device  200  may determine whether a movement of the wearable device  200  worn on the user&#39;s body part corresponds to a left turning movement. For example, the at least one processor  230  may identify whether a third movement of the wearable device  200  turning in a first turning direction (e.g., a direction between +x and −y of  FIG.  7 A ) is detected using the at least one second sensor  220 . 
     Referring to operation  620 , the wearable device  200  may at least partially adjust a signal with a second strength transmitted from the first sensor  210 , based on identifying that the movement of the wearable device  200  corresponds to the left turning movement. For example, the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength in a second direction toward the object corresponding to the turning direction of the wearable device  200 . 
     Referring to operation  630 , the wearable device  200  may at least partially adjust the signal with the second strength transmitted from the first sensor  210 , based on identifying that the movement of the wearable device  200  corresponds to the left turning movement. For example, while performing operation  620 , the at least one processor  230  may control the first sensor  210  to transmit a signal with a first strength corresponding to a maximum strength in a direction different from the second direction toward the object corresponding to the turning direction of the wearable device  200 . Operation  630  may be performed substantially simultaneously with operation  620 , or may be performed before operation  620 . 
     Referring to operation  640 , the wearable device  200  may determine whether the movement of the wearable device  200  corresponds to a right turning movement. For example, the at least one processor  230  may identify whether a fourth movement of the wearable device  200  turning in a second turning direction (e.g., a direction between +x and +y of  FIG.  7 B ) is detected using the at least one second sensor  220 . 
     Referring to operation  650 , the wearable device  200  may at least partially adjust the signal with the second strength transmitted from the first sensor  210 , based on identifying that the movement of the wearable device  200  corresponds to the right turning movement. For example, the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength in a third direction toward the object based on the turning direction of the wearable device  200 . 
     Referring to operation  660 , the wearable device  200  may at least partially adjust the signal with the second strength transmitted from the first sensor  210 , based on identifying that the movement of the wearable device  200  corresponds to the right turning movement. For example, while performing operation  650 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the first strength corresponding to the maximum strength in a direction different from the third direction toward the object based on the turning direction of the wearable device  200 . Operation  660  may be performed substantially simultaneously with operation  650 , or may be performed before operation  650 . 
       FIG.  7 A  is a diagram of a sensing range of a wearable device after a direction change in a left direction according to an embodiment. 
     Referring to  FIG.  7 A , the wearable device  200  according to an embodiment may transmit signals with different strengths for detecting an object based on a first state  701   a , a second state  701   b , or a third state  701   c.    
     Referring to the first state  701   a , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength toward the front of the wearable device  200 . For example, as an initial operation for detecting the position of an object, at least one processor  230  may control a first sensor  210  to transmit the signal with the first strength. The signal with the first strength may form a first sensing range R 1  (e.g., a maximum sensing range). 
     Referring to the second state  701   b , when an object is detected, the wearable device  200  may transmit a signal with the second strength corresponding to a first distance D 1  (e.g., 4 m) between the wearable device  200  and the object in a first direction (e.g., a +x direction) toward the object. For example, when obtaining distance data between the wearable device  200  and the object, based on detecting a response signal to the signal with the first strength transmitted from a first sensor  210 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength corresponding to the first distance D 1 , which is a distance value of the obtained distance data. The signal with the second strength may form a second sensing range R 2  (e.g., a sensing range smaller than the maximum sensing range). The obtained distance data may be stored in a memory  240  of the wearable device  200 . 
     Referring to the third state  701   c , the wearable device  200  may at least partially adjust the signal with the second strength, based on detecting a third movement M 3  corresponding to a left turn of the wearable device  200 , thereby transmitting signals with different strengths in different directions, respectively. For example, based on the third movement M 3  of the wearable device  200 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength in a second direction (e.g., a direction between +x and −y) toward the object, and may control the first sensor  210  to transmit the signal with the first strength in a direction different from the second direction. Here, the signal with the second strength toward the second direction may form a sensing range R 2 - 1  partially overlapping with the second sensing range R 2  in the second state  701   b , and the signal with the first strength toward the direction different from the second direction may form a sensing range R 3  not overlapping with the second sensing range R 2 . 
       FIG.  7 B  is a diagram of a sensing range of a wearable device after a direction change in a right direction according to an embodiment. 
     Referring to  FIG.  7 B , the wearable device  200  according to an embodiment may transmit signals with different strengths for detecting an object based on a first state  702   a , a second state  702   b , or a third state  702   c.    
     Referring to the first state  702   a , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength toward the front of the wearable device  200 . For example, as an initial operation for detecting the position of an object, at least one processor  230  may control a first sensor  210  to transmit the signal with the first strength. The signal with the first strength may form a first sensing range R 1  (e.g., a maximum sensing range). 
     Referring to the second state  702   b , when an object is detected, the wearable device  200  may transmit a signal with the second strength corresponding to a first distance D 1  (e.g., 4 m) between the wearable device  200  and the object in a first direction (e.g., a +x direction) toward the object. For example, when obtaining distance data between the wearable device  200  and the object, based on detecting a response signal to the signal with the first strength transmitted from a first sensor  210 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength corresponding to the first distance D 1 , which is a distance value of the obtained distance data. The signal with the second strength may form a second sensing range R 2  (e.g., a sensing range smaller than the maximum sensing range). The obtained distance data may be stored in a memory  240  of the wearable device  200 . 
     Referring to the third state  702   c , the wearable device  200  may partially adjust the signal with the second strength, based on detecting a fourth movement M 4  corresponding to a right turn of the wearable device  200 , thereby transmitting signals with different strengths in different directions, respectively. For example, based on the fourth movement M 4  of the wearable device  200 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the second strength in a third direction (e.g., a direction between +x and +y) toward the object, and may control the first sensor  210  to transmit the signal with the first strength in a direction different from the third direction. Here, the signal with the second strength toward the third direction may form a sensing range R 2 - 1  partially overlapping with the second sensing range R 2  in the second state  702   b , and the signal with the first strength toward the direction different from the third direction may form a sensing range R 3  not overlapping with the second sensing range R 2 . 
       FIG.  7 C  is a diagram of a sensing range of a wearable device corresponding to each of a plurality of objects according to an embodiment. 
     Referring to  FIG.  7 C , the wearable device  200  according to an embodiment may transmit signals with different strengths for detecting at least one object based on a first state  703   a , a second state  703   b , or a third state  703   c.    
     Referring to the first state  703   a , the wearable device  200  may transmit a signal with a first strength corresponding to a maximum strength toward the front of the wearable device  200 . For example, as an initial operation for detecting the position of at least one object, at least one processor  230  may control a first sensor  210  to transmit the signal with the first strength. The signal with the first strength may form a first sensing range R 1  (e.g., a maximum sensing range). 
     Referring to the second state  703   b , when a plurality of objects is detected, the wearable device  200  may transmit signals with different strengths respectively to the plurality of objects, based on a distance between the wearable device  200  and the plurality of objects. For example, the wearable device  200  may transmit a signal with a second strength corresponding to a first distance D 1  (e.g., 4 m) between the wearable device  200  and a first object B 1  in a direction (e.g., a +x direction) toward the first object B 1 , and may transmit a signal with a third strength (e.g., a strength greater than the second strength) corresponding to a second distance D 2  (e.g., 5 m) between the wearable device  200  and a second object B 2  in a direction (e.g., a direction between +x and −y) toward the second object B 2 . 
     The signal with the second strength corresponding to the first distance D 1  may form a first overlapping sensing range R 1 - 1  that is smaller than the first sensing range R 1  in the first state  703   a  and partially overlaps with the first sensing range R 1 . The signal with the third strength corresponding to the second distance D 2  may form a second overlapping sensing range R 1 - 2  that is smaller than the first sensing range R 1  and partially overlaps with the first sensing range R 1  in a range different from the first overlapping sensing range R 1 - 1 . 
     Referring to the third state  703   c , the wearable device  200  may partially adjust the signal with the second strength, based on detecting a fourth movement M 4  corresponding to a right turn of the wearable device  200 , thereby transmitting signals with different strengths in different directions, respectively. For example, when the second object B 2  is not included in the sensing range resulting from the fourth movement M 4  of the wearable device  200 , the at least one processor  230  may control the first sensor  210  to continuously transmit the signal with the second strength corresponding to the first distance D 1  in a direction (e.g., a direction between +x and +y) toward the first object B 1 , and may not transmit a signal in the direction (e.g., the direction between +x and −y) toward the second object B 2 . Further, while controlling the first sensor  210  to continuously transmit the signal with the second strength corresponding to the first distance D 1  in the direction (e.g., the direction between +x and +y) toward the first object B 1 , the at least one processor  230  may control the first sensor  210  to transmit the signal with the first strength in a direction (e.g., the direction between a +x-axis and a +y-axis) different from the direction toward the first object B 1 . 
     The signal with the second strength toward the first object B 1  may form a sensing range R 1 - 3  partially overlapping with the first overlapping sensing range R 1 - 1  in the second state  703   b . The signal with the first strength toward the direction different from the direction toward the first object B 1  may form a sensing range R 3  not overlapping with the first overlapping sensing range R 1 - 1  and the second overlapping sensing range R 1 - 2  in the second state  703   b.    
     Although the strength of signals has been described as being adjustable corresponding to the position of each of the plurality of objects with reference to  FIG.  7 C , the movement of the wearable device  200  is not limited to the fourth movement M 4  illustrated in  FIG.  7 C . For example, when one object (e.g., the second object B 2 ) is not included in the first sensing range R 1  corresponding to the second movement M 2  illustrated in  FIG.  5 B  while transmitting signals with different strengths respectively to the plurality of objects B 1  and B 2 , the wearable device  200  may adaptively adjust the strength of the signals in view of the position of a remaining object (e.g., the first object B 1 ). 
       FIG.  8    is a diagram of a power consumption level when the strength of a signal is adjusted based on a movement of a wearable device according to an embodiment. 
     Referring to  FIG.  8   , power consumption may occur as shown in a first graph  800   a  when a signal control method of the wearable device  200  according to various embodiments is not applied, while power consumption may occur as shown in a second graph  800   b  when the signal control method of the wearable device  200  according to various embodiments is applied. 
     Referring to the first graph  800   a , when a movement of the wearable device  200  worn on a user&#39;s body part is detected, the wearable device  200  may transmit a signal with a first strength  810   c , and may then gradually transmit a signal with a strength  820   c  less than the first strength  810   c . For example, after transmitting a signal with a strength corresponding to a first distance between the wearable device  200  and an object, when detecting a movement of the wearable device  200  at a first time TO, at least one processor  230  may control a first sensor  210  to transmit a signal with the first strength  810   c  corresponding to a maximum strength during a first period  810  between the first time T 0  and a second time T 1 . Further, after transmitting the signal with the first strength  810   c , the at least one processor  230  may gradually transmit a signal with a strength  820   c  less than the first strength  810   c  during a second period  820  between the second time T 1  and a third time T 2  regardless of the distance between the wearable device  200  and the object, thereby retrieving the position of the object (or another object). 
     Referring to the second graph  800   b , when the movement of the wearable device  200  worn on the user&#39;s body part is detected, the wearable device  200  may transmit a signal with a third strength  810   a  and a signal with a fourth strength  820   a  based on the signal with the third strength  810   a . For example, after transmitting the signal with the strength corresponding to the first distance between the wearable device  200  and an object, when detecting the movement of the wearable device  200  at the first time T 0 , the at least one processor  230  may control the first sensor  210  to transmit a signal with the third strength  810   a  based on the movement and the first distance during the first period  810  between the first time T 0  and the second time T 1 . Further, after transmitting the signal with the third strength  810   a , the at least one processor  230  may continuously transmit a signal with the fourth strength  820   a  substantially the same strength as the signal with the third strength  810   a  during the second period  820  between the second time T 1  and the third time T 2 , thereby adjusting the strength of a signal corresponding to the distance between the wearable device  200  and the object. 
     Accordingly, the wearable device  200  may adaptively adjust the strength of a signal transmitted from the first sensor  210 , based on at least one of a position change and a direction change of the wearable device  200  and the position of the object, thereby reducing some (e.g.,  810   b  and  820   b  in the first graph  800   a ) of power consumption as shown in the second graph  800   b.    
       FIG.  9    is a diagram of of a wearable device according to an embodiment. 
     Referring to  FIG.  9   , in the wearable device  900  (e.g., the wearable device  200  of  FIG.  2   ) according to various embodiments, the physical state of the wearable device  900  may be changed by hinges  913 -L and  913 -R. For example, the wearable device  900  may be in a state in which eyeglass temples are folded or unfolded by the hinges  913 -L and  913 -R. 
     According to an embodiment, the wearable device  900  may include a first light output module  901 -L, a second light output module  901 -R, a first display  903 -L, a second display  903 -R, first cameras  905 -L and  905 -R, second cameras  907 -L,  907 -R, a third camera  909 , a first PCB  911 -L, a second PCB  911 -R, the hinges  913 -L and  913 -R, a first optical member  915 -L, a second optical member  915 -R, microphones  917 -L,  917 -R, and  917 -center (C), speakers  919 -L and  919 -R, a first battery  921 -L, a second battery  921 -R, a first transparent member  923 -L, and a second transparent member  923 -R. According to various embodiments, the wearable device  900  may include an additional component in addition to the components illustrated in  FIG.  9   , or may omit at least one of the components illustrated in  FIG.  9   . 
     According to an embodiment, “R” and “L” positioned at the end of the reference numerals illustrated shown in  FIG.  9    may respectively refer to components positioned on the right and left when the wearable device  900  is worn. For example, a component positioned on the left when the wearable device  900  is worn may be driven by power output from the first battery  921 -L. A component positioned on the right when the wearable device  900  is worn may be driven by power output from the second battery  921 -R. 
     Although  FIG.  9    shows that components (e.g., the first PCB  911 -L, the second PCB  911 -R, the hinges  913 -L and  911 -R, the speakers  919 -L and  919 -R, the first battery  921 -L, and the second battery  921 -R) disposed on the eyeglass temples are exposed to the outside, which is only for convenience of description, these components may be disposed inside the eyeglass temples and may not be exposed to the outside. 
     According to an embodiment, the first light output module  901 -L and the second light output module  901 -R may be referred to as a light output module  901 . The first display  903 -L and the second display  903 -R may be referred to as a display  903  (e.g., the display module  160  of  FIG.  1   ). The first PCB  911 -L and the second PCB  911 -R may be referred to as a PCB  911 . The first optical member  915 -L and the second optical member  915 -R may be referred to as an optical member  915 . The first battery  921 -L and the second battery  921 -R may be referred to as a battery  921 . The first transparent member  923 -L and the second transparent member  923 -R may be referred to as a transparent member  923 . 
     According to an embodiment, the wearable device  900  may be a wearable electronic device. For example, the wearable device  900  may be a glasses-type wearable electronic device (e.g., augmented reality (AR) glasses, smart glasses, or a head-mounted device). However, the foregoing example is only for illustration, and the disclosure is not limited thereto. The glasses-type wearable device  900  may operate while being worn on a user&#39;s face. The transparent member  923  may be a transparent or translucent glass plate, a plastic plate, or a polymer material to enable the user to see the outside even when the wearable device  900  is worn on the user&#39;s face. In an embodiment, the first transparent member  923 -L may be disposed to face the user&#39;s left eye, and the second transparent member  923 -R may be disposed to face the user&#39;s right eye. 
     According to an embodiment, the wearable device  900  may obtain (capture) a real-world image via the third camera  909 , may receive an AR object related to the position of the obtained image or an object (e.g., a thing or a building) included in the obtained image) from a different electronic devices (e.g., a smartphone, a computer, a tablet personal computer (PC)r a server), and may provide the AR object for the user through the light output module  901 , the optical member  915 , and the display  903 . 
     According to an embodiment, the first cameras  905 -L and  905 -R, the second cameras  907 -L and  907 -R, and the third camera  909  may be utilized to recognize a current scene or environment viewed through the optical member  915  of the wearable device  900 . 
     According to an embodiment, the wearable device  900  may receive an audio signal through the microphones  917 -L,  917 -R, and  917 -C, and may output the audio signal through the speakers  919 -L and  919 -R. 
     According to an embodiment, a first charging module may be disposed on the first PCB  911 -L. According to an embodiment, the wearable device  900  may charge the first battery  921 -L with the first charging module  912 -L. According to an embodiment, a second charging module may be disposed on the second PCB  911 -R. According to an embodiment, the wearable device  900  may charge the second battery  921 -R with the second charging module  912 -R. 
     According to various embodiments, a wearable device (e.g., the wearable device  200  of  FIG.  2   ) may include a first sensor (e.g., the first sensor  210  of  FIG.  2   ), at least one second sensor (the at least one second sensor  220  of  FIG.  2   ), and at least one processor (e.g., the at least one processor  230  of  FIG.  2   ) configured to electrically connected to the first sensor  210  and the at least one second sensor  220 , where the at least one processor  230  may be configured to control the first sensor  210  such that the first sensor  210  transmits a signal with a first strength, identify a position of a first object, based on a response signal to the signal with the first strength, control the first sensor  210  such that the first sensor  210  transmits a signal with a second strength corresponding to a first distance (e.g., the first distance D 1  of  FIG.  5 A ,  FIG.  5 B ,  FIG.  7 A , or  FIG.  7 B ) between the wearable device  200  and the first object, based on the identified position of the first object, detect a movement of the wearable device  200  using the at least one second sensor  200 , the movement of the wearable device  200  including at least one of a position change of the wearable device  200  and a direction change of the wearable device  200 , and determine whether to adjust the second strength, based on at least one of a position and a direction of the wearable device  200  according to the movement of the wearable device  200  and the position of the first object. 
     According to various embodiments, the at least one processor  230  may identify whether a first movement (e.g., the first movement M 1  of  FIG.  5 A ) of the wearable device  200  moving in a first moving direction (e.g., the +x-axis direction of  FIG.  5 A ) using the at least one second sensor  220 , may control the first sensor  210  such that the first sensor  210  transmits the signal with the first strength in a first direction (e.g., the +x-axis direction of  FIG.  5 A ) toward the first object when detecting the first movement of the wearable device, and may control the first sensor  210  such that the first sensor  210  transmits a signal corresponding to a second distance (e.g., the second distance D 2  of  FIG.  5 A ) between the position of the wearable device  200  determined according to the first movement M 1  of the wearable device  200  and the first object and having a different strength from the first strength in the first direction toward the first object after controlling the first sensor  210  to transmit the signal with the first strength in the first direction toward the first object. 
     According to various embodiments, the at least one processor  230  may control the first sensor  210  such that the first sensor  210  transmits the signal corresponding to the second distance D 2  and having the different strength from the first strength in the first direction toward the first object, based on whether a response signal to the signal with the first strength is received from a second object different from the first object, after controlling the first sensor  210  to transmit the signal with the first strength in the first direction toward the first object. 
     According to various embodiments, the at least one processor  230  may identify a second movement (e.g., the second movement M 2  of  FIG.  5 B ) of the wearable device  200  moving in a second moving direction (e.g., a −x-axis direction of  FIG.  5 B ) opposite to the first moving direction using the at least one second sensor  220 , and may control the first sensor  210  such that the first sensor  210  transmits a signal corresponding to a third distance (e.g., the third distance D 3  of  FIG.  5 B ) between the position of the wearable device  200  determined according to the second movement M 2  of the wearable device and the first object and having a different strength from the first strength in the first direction toward the first object when detecting the second movement M 2  of the wearable device  200 . 
     According to various embodiments, the first sensor  210  may include a plurality of light emitting units, and the at least one processor  230  may identify a third movement (e.g., the third movement M 3  of  FIG.  7 A ) of the wearable device  200  turning in a first turning direction (e.g., the direction between the +x-axis and the −y-axis of  FIG.  7 A ) using the at least one second sensor  220 , may control the first sensor  210  such that at least one light emitting unit of the plurality of light emitting units transmits the signal with the second strength in a second direction toward the first object when detecting the third movement M 3  of the wearable device  200 , and may control the first sensor  210  such that at least one different light emitting unit from the at least one light emitting unit among the plurality of light emitting units transmits the signal with the first strength in a direction different from the second direction toward the first object. 
     According to various embodiments, the at least one processor  230  may identify a fourth movement (e.g., the fourth movement M 4  of  FIG.  7 B ) of the wearable device  200  turning in a second turning direction (e.g., the direction between the +x-axis and the +y-axis of  FIG.  7 B ) opposite to the first turning direction using the at least one second sensor  220 , may control the first sensor  210  such that at least one light emitting unit of the plurality of light emitting units transmits the signal with the second strength in a third direction toward the first object when detecting the fourth movement M 4  of the wearable device  200 , and may control the first sensor  210  such that at least one different light emitting unit from the at least one light emitting unit among the plurality of light emitting units transmits the signal with the first strength in a direction different from the third direction toward the first object. 
     According to various embodiments, the signal with the first strength transmitted in the direction different from the third direction toward the first object forms a sensing range (e.g., the sensing range R 3  of  FIG.  7 A  or  FIG.  7 B ) not overlapping with a sensing range (e.g., the second sensing range R 2  of  FIG.  7 A  or  FIG.  7 B ) formed by the signal with the second strength transmitted corresponding to the first distance. 
     According to various embodiments, at least one of the third movement M 3  of the wearable device  200  and the fourth movement M 4  of the wearable device  200  may be a state in which the position of the wearable device  200  is fixed. 
     According to various embodiments, a signal control method of a wearable device  200  may include controlling a first sensor  210  such that the first sensor  210  transmits a signal with a first strength (e.g., operation  310  of  FIG.  3   ), identifying a position of a first object, based on a response signal to the signal with the first strength (e.g., operation  320  of  FIG.  3   ), controlling the first sensor  210  such that the first sensor  210  transmits a signal with a second strength corresponding to a first distance D 1  between the wearable device  200  and the first object, based on the identified position of the first object (e.g., operation  330  of  FIG.  3   ), detecting a movement of the wearable device  200  using at least one second sensor  220  (e.g., operation  340  of  FIG.  3   ), the movement of the wearable device  200  including at least one of a position change of the wearable device  200  and a direction change of the wearable device  200 , and determining whether to adjust the second strength, based on at least one of a position and a direction of the wearable device  200  determined according to the movement of the wearable device  200  and the position of the first object (e.g., operation  350  of  FIG.  3   ). 
     According to various embodiments, the signal control method may further include identifying whether a first movement M 1  of the wearable device  200  moving in a first moving direction using the at least one second sensor  220  (e.g., operation  410  of  FIG.  4   ), controlling the first sensor  210  such that the first sensor  210  transmits the signal with the first strength in a first direction toward the first object when detecting the first movement M 1  of the wearable device  200  (e.g., operation  420  of  FIG.  4   ), and controlling the first sensor  210  such that the first sensor  210  transmits a signal corresponding to a second distance D 2  between the position of the wearable device  200  determined according to the first movement M 1  of the wearable device  200  and the first object and having a different strength from the first strength in the first direction toward the first object after controlling the first sensor  210  to transmit the signal with the first strength in the first direction toward the first object (e.g., operation  430  of  FIG.  4   ). 
     According to various embodiments, the controlling of the first sensor to transmit the signal having the different strength from the first strength in the first direction toward the first object (operation  430 ) may be performed based on whether a response signal to the signal with the first strength is received from a second object different from the first object after controlling the first sensor  210  to transmit the signal with the first strength in the first direction toward the first object. 
     According to various embodiments, the signal control method may further include identifying a second movement M 2  of the wearable device  200  moving in a second moving direction opposite to the first moving direction using the at least one second sensor  220  (e.g., operation  440 ), and controlling the first sensor  210  such that the first sensor  210  transmits a signal corresponding to a third distance D 3  between the position of the wearable device  200  determined according to the second movement M 2  of the wearable device  200  and the first object and having a different strength from the first strength in the first direction toward the first object when detecting the second movement M 2  of the wearable device  200  (e.g., operation  450 ). 
     According to various embodiments, the signal control method may further include identifying a third movement M 3  of the wearable device  200  turning in a first turning direction using the at least one second sensor  220  (e.g., operation  610  of  FIG.  6   ), controlling the first sensor  210  such that at least one light emitting unit of a plurality of light emitting units included in the first sensor transmits the signal with the second strength in a second direction toward the first object when detecting the third movement M 3  of the wearable device  200  (e.g., operation  620  of  FIG.  6   ), and controlling the first sensor  210  such that at least one different light emitting unit from the at least one light emitting unit among the plurality of light emitting units transmits the signal with the first strength in a direction different from the second direction toward the first object (e.g., operation  630  of  FIG.  6   ). 
     According to various embodiments, the signal control method may further include identifying a fourth movement M 4  of the wearable device  200  turning in a second turning direction opposite to the first turning direction using the at least one second sensor  220  (e.g., operation  640  of  FIG.  6   ), controlling the first sensor  210  such that at least one light emitting unit of the plurality of light emitting units transmits the signal with the second strength in a third direction toward the first object when detecting the fourth movement M 4  of the wearable device  200  (e.g., operation  650  of  FIG.  6   ), and controlling the first sensor  210  such that at least one different light emitting unit from the at least one light emitting unit among the plurality of light emitting units transmits the signal with the first strength in a direction different from the third direction toward the first object (e.g., operation  660  of  FIG.  6   ). 
     According to various embodiments, an electronic device (e.g., the wearable device  200  of  FIG.  2   ) may include a first sensor  210 , at least one second sensor  220 , and at least one processor  230  configured to electrically connected to the first sensor  210  and the at least one second sensor  220 , where the at least one processor  230  may control the first sensor  210  such that the first sensor  210  transmits a signal with a first strength in a first direction, may identify a position of a first object in the first direction, based on a response signal to the signal with the first strength, may control the first sensor  210  such that the first sensor  210  transmits a signal with a second strength corresponding to a first distance D 1  between the electronic device  200  and the first object in the first direction, based on the identified position of the first object, may detect a movement of the electronic device  200  using the at least one second sensor  220 , the movement of the electronic device  200  including at least one of moving of the electronic device  200  and turning of the electronic device  200 , may determine a second distance D 1 , D 2 , or D 3  between the electronic device  200  and the first object, based on detecting the movement of the electronic device  200 , and may control the first sensor  210  such that the first sensor  210  transmits a signal corresponding to the determined second distance D 1 , D 2 , or D 3  and having a third strength different from the first strength in a second direction toward the first object when the determined second distance D 1 , D 2 , or D 3  is equal to or greater than the first distance D 1 . 
     According to various embodiments, the at least one processor  230  may control the first sensor  210  such that the first sensor  210  transmits the signal with the first strength in a third direction different from the second direction. 
     According to various embodiments, the at least one processor  230  may control the first sensor  210  such that the first sensor  210  transmits the signal with the first strength in the second direction when the determined second distance D 1 , D 2 , or D 3  is less than the first distance D 1 . 
     According to various embodiments, when the movement of the electronic device  200  is a direction change of the electronic device  200 , the third strength may be the same as the second strength. 
     According to various embodiments, the first sensor  210  may include a plurality of light emitting units, and the at least one processor  230  may control the first sensor  210  such that the first sensor  210  transmits the signal with the third strength in the second direction using at least one light emitting unit among the plurality of light emitting units and transmits the signal with the first strength in a third direction different from the second direction using at least one different light emitting unit from the at least one light emitting unit among the plurality of light emitting units when the second direction is different from the first direction. 
     The electronic device according to various embodiments may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to an embodiment of the disclosure, the electronic devices are not limited to those described above. 
     It should be appreciated that various embodiments of the present disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It is to be understood that a singular form of a noun corresponding to an item may include one or more of the things, unless the relevant context clearly indicates otherwise. As used herein, each of such phrases as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C,” may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd,” or “first” and “second” may be used to simply distinguish a corresponding component from another, and does not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with,” “coupled to,” “connected with,” or “connected to” another element (e.g., a second element), it means that the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element. 
     As used in connection with various embodiments of the disclosure, the term “module” may include a unit implemented in hardware, software, or firmware, and may interchangeably be used with other terms, for example, “logic,” “logic block,” “part,” or “circuitry”. A module may be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, the module may be implemented in a form of an application-specific integrated circuit (ASIC). 
     Various embodiments as set forth herein may be implemented as software (e.g., the program  140 ) including one or more instructions that are stored in a storage medium (e.g., internal memory  136  or external memory  138 ) that is readable by a machine (e.g., the electronic device  101 ). For example, a processor (e.g., the processor  120 ) of the machine (e.g., the electronic device  101 ) may invoke at least one of the one or more instructions stored in the storage medium, and execute it, with or without using one or more other components under the control of the processor. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions may include a code generated by a complier or a code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Where, the term “non-transitory” simply means that the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium. 
     According to an embodiment, a method according to various embodiments of the disclosure may be included and provided in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded) online via an application store (e.g., PlayStore™), or between two user devices (e.g., smart phones) directly. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturer&#39;s server, a server of the application store, or a relay server. 
     According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to various embodiments, operations performed by the module, the program, or another component may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added.