KR20220135064A - Electronics device for controlling transmition power and thereof method - Google Patents

Abstract

Various embodiments of the present disclosure relate to an apparatus for controlling transmission power based on a distance to a human body in an electronic device for supporting wireless communication, and an operating method thereof. To this end, an electronic device can check the operating state of each of a plurality of antennas, and consider the operating state of each antenna, to determine one of first paths electrically connecting each of the plurality of antennas and a second path grounded through a capacitance element as a reference path. The electronic device can output a sensing value according to capacitance conversion based on a first capacitance value obtained through one of the first paths and a second capacitance value obtained through the reference path.

Description

ELECTRONICS DEVICE FOR CONTROLLING TRANSMITION POWER AND THEREOF METHOD

Various embodiments of the present disclosure relate to an apparatus for controlling transmission power based on a distance from a human body in an electronic device supporting wireless communication, and an operating method thereof.

It is known that an electronic device supporting wireless communication may adversely affect the human body by using high transmission power. As a method for preventing this, the electronic device may detect a distance to the human body and control the transmission power in consideration of the sensed distance. When detecting that a human body such as a hand or face is present at a specific distance, the electronic device may back-off the transmission power of one or a plurality of antennas. The electronic device may use a grip sensor to sense the distance to the human body. The grip sensor may be disposed, for example, at a position where the user holds the electronic device by hand for use.

An electronic device supporting wireless communication may determine proximity of a human body based on a change amount of a capacitance value. The electronic device may check whether the human body is in proximity by, for example, whether a capacitance having an off-set greater than or equal to a threshold value than a default capacitance is detected. . When the capacitance exceeding the threshold is sensed, the electronic device may consider that a human body is close to the electronic device and may back-off the transmission power.

However, in addition to the proximity of the human body, the capacitance may be changed due to causes such as radio frequency (RF) noise and/or temperature rise of the electronic device. Therefore, it was necessary for the electronic device to prepare a method capable of detecting a change in capacitance due to human approach even in a noisy environment such as RF noise and/or temperature rise.

Various embodiments of the present disclosure may be provided to solve the above-mentioned problems and provide at least the advantages described below.

One aspect of the present disclosure is to provide an apparatus for improving a recognition rate of a change in capacitance due to a human body approach in an electronic device having multiple antennas, and an operating method thereof.

Another aspect of the present disclosure is to provide an electronic device using one of sensing channels connecting multiple antennas as a reference channel for detecting a change in capacitance, and an operating method thereof.

According to an aspect of the present disclosure, an electronic device is configured to electrically couple a plurality of antennas and at least two antennas included in the plurality of antennas, detect a change in capacitance, and output a sensing signal a detection circuit and at least one processor configured to control transmission power by a sensing signal output from the detection circuit, wherein the detection circuit includes at least two second antennas configured to be electrically coupled to the at least two antennas. one port, a second port configured to be grounded through a capacitive element, at least two first input terminals coupled to the at least two first ports, a second input terminal coupled to the second port, and a plurality of output terminals, connecting at least one of the at least two first input terminals to a first output terminal that is at least one of the plurality of output terminals, and connecting one of the at least two first input terminals and the second input terminal to the a switch circuit configured to be connected to a second output terminal that is one of a plurality of output terminals, and a result of comparing a first measured value obtained from the at least one first output terminal with a second measured value obtained from the second output terminal It may be configured to include a third port through which the sensing signal is output.

According to another aspect of the present disclosure, an operating method in an electronic device includes an operation of checking an operation state of each of a plurality of antennas, and electrically connecting each of the plurality of antennas in consideration of an operation state of each antenna. Determining one of the first paths and the second path grounded through the capacitive element as a reference path, and a first capacitance value obtained through one of the first paths and a second path obtained through the reference path 2 It may include an operation of outputting a sensing value according to the capacitance conversion by the capacitance value.

Further, one or more features selected in any one embodiment described in this disclosure may be combined with one or more features selected in any other embodiment described in this disclosure, and alternatives to these features a combination of at least partially alleviating one or more technical problems discussed in the present disclosure, or at least partially alleviating technical problems discernable by a person skilled in the art from the present disclosure, and furthermore, features ( The combination is possible, provided that a specific combination or permutation so formed of the embodiment features is not understood by a person skilled in the art as incompatible.

In any described example implementation, two or more physically separate components may alternatively be integrated into a single component if their integration is possible, and the single component so formed If the same function is performed by , the integration is possible. Conversely, a single component of any embodiment described in this disclosure may alternatively be implemented with two or more separate components that achieve the same function, where appropriate.

It is an object of certain embodiments of the present invention to solve, mitigate, or eliminate, at least in part, at least one of the problems and/or disadvantages associated with the prior art. Certain embodiments aim to provide at least one of the advantages described below.

1 is a diagram illustrating a block configuration of an electronic device in a network environment, according to various embodiments of the present disclosure;
2 is a diagram illustrating a block configuration for controlling transmission power in consideration of a change in capacitance in an electronic device, according to an embodiment.
3 to 5 are diagrams illustrating examples of using a reference channel for detecting a change in capacitance in an electronic device, according to an embodiment.
6A to 6C are diagrams illustrating implementation examples of a detection circuit for detecting a change in capacitance in an electronic device, according to an exemplary embodiment.
7A and 7B are diagrams illustrating block configuration examples of a detection circuit for detecting a change in capacitance in an electronic device, according to an embodiment.
8 is a diagram illustrating a structure of a switching circuit constituting a detection circuit included in an electronic device, according to an exemplary embodiment.
9A to 9C are diagrams illustrating operation examples of a switching circuit enabling switching of a reference channel for each operation mode in an electronic device, according to an embodiment.
10 is a diagram illustrating a control flow for controlling transmission power in an electronic device, according to an embodiment.
11 is a diagram illustrating an antenna arrangement in an electronic device, according to an embodiment.
12 is a diagram illustrating an example of using a reference channel for a folder structure in an electronic device, according to an embodiment.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. In the following description, specific details, such as detailed configurations and components, will be provided merely to aid a general understanding of the embodiments of the present disclosure. Accordingly, it should be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.

Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 . In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 uses less power than the main processor 121 or is set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 or an external electronic device (eg, a sound output module 155 ) directly or wirelessly connected to the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and 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 an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, 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 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, underside) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be executed by one or more external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, 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 neural networks. 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 an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "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 "A , B, or C," each of which may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one of the one or more instructions stored from the storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided in a computer program product (computer program product). Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.

FIG. 2 is a diagram illustrating a block configuration for controlling transmission power in consideration of a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 2 , the electronic device 101 according to an embodiment includes at least one processor 210 (eg, the processor 120 of FIG. 1 ) in order to control transmission power in consideration of a change in capacitance; A wireless communication module (eg, the wireless communication module 192 of FIG. 1), a plurality of antennas 240-1....240-n (eg, the antenna module 197 of FIG. 1) and a sensor module 250 ) (eg, the sensor module 176 of FIG. 1 ). The wireless communication module includes a transceiver 220 and a plurality of RF front-end modules (RFFE module: radio frequency front end module, hereinafter referred to as “RFFE module”) (230-1....230-n) may include

The processor 210 may control the overall operation of the electronic device 101 . The processor 210 may generate a baseband signal for transmission (eg, an I/Q transmission signal) or process a received baseband signal (eg, an I/Q reception signal).

According to an embodiment, the processor 210 transmits power of the plurality of antennas 240 - 1 ... 240 - n based on the sensing signal provided from the sensor module 250 through the first interface 290 . can be controlled. For example, when the processor 210 recognizes a human body approach based on the sensing signal provided from the sensor module 250 , a control for lowering the transmit power of the plurality of antennas 240 - 1 ... 240 - n can be performed.

According to an embodiment, the processor 210 responds to the change in internal capacitance based on the operating state of the plurality of antennas 240-1....240-n and/or the amount of change in capacitance in the sensing channel. A reference channel for measuring the corresponding offset may be determined. The processor 210 may control the sensor module 250 so that the determined reference channel can be used to detect a change in capacitance. To this end, the processor 210 may output a control signal through the first interface 290 . The control signal output by the processor 210 may be used to set a reference channel through which the sensor module 250 measures an offset corresponding to a change in capacitance.

According to an embodiment, the operating state may include an active state in which a signal is transmitted or received through the antenna, or an inactive state in which a signal is not transmitted or received through the antenna. The activation state may further include a state in which a voice call operation is performed. Therefore, in the active state, noise due to a transmitted or received signal may have a relatively large effect on measuring the capacitance, and in the inactive state, noise due to a transmitted or received signal is used to measure the capacitance. may have a relatively small effect on For this reason, the processor 210 uses a sensing channel electrically or functionally connecting the inactive antenna among the plurality of antennas 240-1....240-n and the sensor module 250 as a reference channel. can decide to

According to another embodiment, the amount of change in capacitance may be a value indicating a degree of change in capacitance measured in a sensing channel electrically or functionally connecting the antenna and the sensor module 250 . The capacitance change amount is determined by sensing channels (CH_sensing #1(270-1)... Among the CH_sensing #n (270-n), a sensing channel that is not sensitive to the influence of an external factor such as temperature will have a relatively low value. 1).... Among CH_sensing #n(270-n), it can be determined to use a sensing channel with a relatively low change in capacitance as the reference channel.

According to another embodiment, the processor 210 determines the amount of capacitance change while the operation state of the corresponding antenna among the sensing channels CH_sensing #1 (270-1).... CH_sensing #n (270-n) is inactive. It may be determined to use a low sensing channel as a reference channel The processor 210 does not have an antenna in an inactive state, or changes in capacitance in all sensing channels 270-1....270-n. If the amount is greater than or equal to the reference value, it may be determined to use the default reference channel 280 as the reference channel. The default reference channel 280 may be a reference channel provided in the sensor module 250 to compensate for capacitance caused by noise. have.

The transceiver 220 may up-convert a baseband signal to a radio frequency band or down-convert a radio frequency band signal to a baseband signal. To this end, the transceiver 220 may include one or a plurality of radio frequency integrated circuits (RFICs).

When transmitting, the transceiver 220 transmits a baseband signal generated by the processor 210 to a radio frequency signal of about 700 MHz to about 3 GHz or a Sub6 band used in a wireless network (eg, a legacy network or a 5G network). It can be up-converted to an RF signal (hereinafter, 5G Sub6 RF signal) (Tx_1....Tx_n) of (eg, about 6 GHz or less). The transceiver 220, upon reception, a radio frequency signal of about 700 MHz to about 3 GHz used in a wireless network (eg, a legacy network or a 5G network) or an RF signal of a Sub6 band (eg, about 6 GHz or less) (hereinafter, 5G Sub6 RF signal) (Rx_1....Rx_n) may be down-converted into a baseband signal to be processed by the processor 210 .

The plurality of RFFE modules (230-1....230-n), at the time of transmission, a radio frequency signal up-converted by the transceiver 220 (eg, a radio frequency signal of about 700 MHz to about 3 GHz or 5G Sub6 RF signal) (Tx_1....Tx_n) may be pre-processed for transmission through the antenna. The preprocessing operation during transmission may include a power amplification operation. The plurality of RFFE modules (230-1....230-n), upon reception, a radio frequency signal received through an antenna (eg, a radio frequency signal of about 700 MHz to about 3 GHz or a 5G Sub6 RF signal) A preprocessing operation for transmitting (Tx_1....Tx_n) to the transceiver 220 may be performed. The preprocessing operation at the time of reception may include a low noise amplification operation.

The plurality of antennas 240-1....240-n, when transmitting, transmit a radio frequency signal provided by the plurality of RFFE modules 230-1....230-n (eg: A radio frequency signal of about 700 MHz to about 3 GHz or a 5G Sub6 RF signal) (Tx_1....Tx_n) may be radiated into free space. Transmission power through which the plurality of antennas 240 - 1 ... 240 - n transmit radio frequency signals may be adjusted or determined by an external (eg, at least one processor 210 ) control. The plurality of antennas (240-1....240-n), upon reception, a radio frequency signal transmitted through free space (eg, a radio frequency signal of about 700 MHz to about 3 GHz or a 5G Sub6 RF signal) (Tx_1....Tx_n) may be provided to the plurality of RFFE modules 230-1....230-n.

The sensor module 250 may be electrically and/or functionally connected to the processor 210 through a first interface 290, and the plurality of antennas 240 - 1 ... 240 through a second interface. -n) and may be electrically and/or functionally connected. The second interface includes sensing channels (CH_sensing #1 (270-1).... CH_sensing #n) electrically and/or functionally connecting the plurality of antennas 240-1....240-n. (270-n).

According to an embodiment, the sensor module 250 may measure a change in capacitance using a reference channel and at least one sensing channel. The reference channel may be one of a default reference channel 280 and a plurality of sensing channels 270-1....270-n. The default reference channel 280 may be provided in the sensor module 250 to obtain a reference capacitance. The reference capacitance may be used as a reference value for measuring a change in capacitance in a sensing channel. The default reference channel 280 may be a path connecting the sensor module 250 to the ground terminal through the capacitors C1 and 260 . The reference channel may be designated or determined by the processor 210 . At least one of the plurality of sensing channels 270-1....270-n may be used as a sensing channel for measuring an amount of change in capacitance. The sensor module 250 may monitor a change in the sensing capacitance measured in the at least one sensing channel using the reference capacitance measured in the reference channel, and may generate a sensing signal based on the monitoring result. The sensing signal generated by the sensor module 250 may be provided to the processor 210 through the first interface 290 .

According to one embodiment, a path (CH_sensing #1 (270-1) . CH_sensing #n(270-n) may be used as a multi-usable channel.The path (CH_sensing #1(270-1).... CH_sensing #n(270-n) is, For example, it may be used as one of a sensing channel or a reference channel according to an operation mode, the sensing channel may be a target channel or a target path for monitoring a change in capacitance, and the reference channel determines a change in capacitance It may be a channel or a path that can obtain a reference value to be performed.

Table 1 below shows an example in which the electronic device 101 selectively sets a reference channel for each operation mode.

operation mode division first antenna second antenna movement #One amount of change big cow Using the second sensing channel as a reference channel Whether or not to use use unused #2 amount of change cow big Using the first sensing channel as a reference channel Whether or not to use unused use #3 amount of change big big Use default reference channel as reference channel Whether or not to use use use

According to <Table 1>, the electronic device 101 changes in capacitance in the plurality of sensing channels 270-1....270-n or the plurality of antennas 240-1....240 An example of using one of the plurality of sensing channels 270-1....270-n or the default reference channel 280 as a reference channel is proposed in consideration of at least one of -n). According to one embodiment, the first antenna is used (activated state), the second antenna is not used (inactive state), the change in capacitance in the sensing channel electrically connecting the first antenna is severe, When a change in capacitance in a sensing channel electrically connecting the second antenna is relatively constant, the electronic device 101 may perform an operation corresponding to the first operation mode. In the first operation mode, sensing capacitance is obtained from a first sensing channel electrically connecting a first antenna, and reference capacitance is obtained using a second sensing channel electrically connecting a second antenna as a reference channel can work to do so.

According to one embodiment, the second antenna is used (activated state), the first antenna is not used (inactive state), the change in capacitance in the sensing channel electrically connecting the second antenna is severe, When a change in capacitance in a sensing channel electrically connecting the first antenna is relatively constant, the electronic device 101 may perform an operation corresponding to the second operation mode. In the second operation mode, sensing capacitance is obtained from a second sensing channel electrically connecting a second antenna, and reference capacitance is obtained using a first sensing channel electrically connecting the first antenna as a reference channel can work to make it happen.

According to an embodiment, when the first and second antennas are used (activated) and the change in capacitance in a sensing channel electrically connecting the first and second antennas is significantly changed, the electronic device 101 may 3 It is possible to perform an operation corresponding to the operation mode. In the third operation mode, the sensing capacitance is obtained from at least one of the first and second sensing channels electrically connecting the first and second antennas, and the reference capacitance is obtained from the default reference channel. can

Table 2 below shows another example in which the electronic device 101 selectively sets a reference channel for each operation mode.

1st antenna activation state The capacitance change in the second sensing channel connecting the second antenna is compared with the capacitance change in the default reference channel, and a channel with a small change amount is used as the reference channel. Second antenna activation state The change in capacitance in the first sensing channel connecting the first antenna is compared with the change in capacitance in the default reference channel, and a channel with a small change is used as the reference channel.

According to an embodiment, when the first antenna is being used (activated), the electronic device 101 may change the capacitance in the second sensing channel electrically connecting the second antenna and the capacitance in the default reference channel. change can be compared. If the electronic device 101 determines that the change in capacitance in the second sensing channel is relatively greater than the change in capacitance in the default reference channel, the electronic device 101 may use the default reference channel as the reference channel. If the electronic device 101 determines that the change in capacitance in the default reference channel is relatively greater than the change in capacitance in the second sensing channel, the electronic device 101 may use the second sensing channel as the reference channel. According to an embodiment, when the second antenna is being used (activated), the electronic device 101 determines the change in capacitance in the first sensing channel electrically connecting the first antenna and the capacitance in the default reference channel. change can be compared. If the electronic device 101 determines that the change in capacitance in the first sensing channel is relatively greater than the change in capacitance in the default reference channel, the electronic device 101 may use the default reference channel as the reference channel. If the electronic device 101 determines that the change in capacitance in the default reference channel is relatively greater than the change in capacitance in the first sensing channel, the electronic device 101 may use the first sensing channel as the reference channel.

3 is a diagram illustrating an operation example of using a reference channel for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 3 , in the first operation mode according to an embodiment, the electronic device 101 electrically connects to an n-th antenna (ANT #n) 240-n or an n-th sensing channel that is functionally connected to it. (CH_sensing #n) 270-n may be used as a reference channel. If n is 2, the n-th sensing channel (CH_sensing #n) 270-n is a second sensing channel (CH_sensing #2) that is electrically connected to or functionally connected to the second antenna (ANT #2). can In the first operation mode, for example, a first antenna (ANT #1) 240-1 is in an active state, an n-th antenna (ANT #n) 240-n is in an inactive state, and the n-th antenna (ANT #n) 240-n is in an inactive state. A stable capacitance may be maintained in the n-th sensing channel (CH_sensing #n) 270-n connecting the antenna (ANT #n) 240-n. In this case, the remaining capacitance except for the default capacitance among capacitances sensed in the n-th sensing channel (CH_sensing #n) 270-n connecting the n-th antenna (ANT #n) 240-n is noise. It can be judged that it is due to Accordingly, the sensor module 250 may use the n-th sensing channel (CH_sensing #n) 270-n, which is a path connecting the n-th antenna (ANT #n) 240-n, as a reference channel, and the first The first sensing channel (CH_sensing #1) 270-1, which is a path connecting the antenna (ANT #1) 240-1, may be used as the sensing channel. For example, if the n-th antenna (ANT #n) 240-n has a structure that does not generate relatively noise like an antenna supporting Rx diversity, the n-th antenna (ANT #n) 240 The probability that the path connecting -n) is used as a reference channel may increase.

4 is a diagram illustrating another operation example of using a reference channel for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 4 , in the second operation mode according to an embodiment, the electronic device 101 electrically connects to a first antenna (ANT #1 240-1) or a first sensing channel ( CH_sensing #1) 270-1 may be used as a reference channel, In the second operation mode, for example, the n-th antenna (ANT #n) 240-n is in an active state, and the first antenna ( ANT #1 (240-1) is in an inactive state, and stable capacitance is generated in the first sensing channel (CH_sensing #1) 270-1 connecting the first antenna (ANT #1) 240-1. In this case, the default power outage among capacitances detected in the first sensing channel (CH_sensing #1) 270-1 connecting the first antenna (ANT #1) 240-1 It can be determined that the remaining capacitance except for the capacitance is due to noise Therefore, the sensor module 250 uses the first sensing channel (CH_sensing #1) that is the path connecting the first antenna (ANT #1) 240-1. ) 270-1 can be used as a reference channel, and the n-th sensing channel (CH_sensing #n) 270-n, which is a path connecting the n-th antenna (ANT #n) 240-n, is used as a sensing channel. If n is 2, the n-th sensing channel (CH_sensing #n) 270-n is electrically connected to the second antenna (ANT #2) or a second sensing channel (CH_sensing) that is functionally connected to the second antenna (ANT #2). #2) For example, if the first antenna (ANT #1) 240-1 has a structure that does not generate relatively noise like an antenna supporting Rx diversity, the first antenna The probability that the path connecting (ANT #1) 240 - 1 will be used as the reference channel may increase.

FIG. 5 is a diagram illustrating another operation example of using a reference channel for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 5 , in the third operation mode according to an embodiment, the electronic device 101 may use a default reference channel 280 as a reference channel. The third operation mode may correspond to an operation mode that cannot be assigned to a reference channel and at least one sensing channel among multiple available channels. The third operation mode is, for example, electrically connected to the n antennas 240-1....240-n, or the n sensing channels 270-1... .270-n) may all correspond to the active state. In this case, the sensor module 250 may use the default reference channel 280 as a reference channel, and may use at least one of the n sensing channels 270-1....270-n as the sensing channel. . If n is 2, the n-th sensing channel (CH_sensing #n) 270-n is a second sensing channel (CH_sensing #2) that is electrically connected to or functionally connected to the second antenna (ANT #2). can For example, the third operation mode may mainly occur when the n antennas 240 - 1 .... 240 - n operate as EN-DC with a high possibility of simultaneously outputting transmit power.

6A is a diagram illustrating an implementation example of a detection circuit for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an exemplary embodiment.

Referring to FIG. 6A , a sensor module (eg, the sensor module 250 of FIG. 2 ) according to an embodiment may be configured by one grip sensor 611 . In this case, the grip sensor 611 constituting the sensor module 250 electrically connects n antennas (eg, the first to n-th antennas 240-1 ... 240-n of FIG. 2 ). Paths that connect or connect functionally (CH_sensing #1(615-1).... CH_sensing #n(615-n)) (eg, CH_sensing #1(270-1).... CH_sensing in FIG. 2 ) #n(270-n)), a driving voltage (Vdd) 613 , and ports to be connected to a default reference channel 617 . The grip sensor 611 may further include a port for outputting a sensing value 619 according to a change in capacitance.

6B is a diagram illustrating another implementation example of a detection circuit for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 6B , a sensor module (eg, the sensor module 250 of FIG. 2 ) according to an embodiment may include two grip sensors 621-1 and 621-2. The first grip sensor 621-1, which is one of the two grip sensors 621-1 and 621-2 included in the sensor module 250, electrically connects or functionally connects k antennas. It may include ports to be connected to the CH_sensing #1 (625-1).... CH_sensing #k (625-k), the driving voltage (Vdd) 623 , and the default reference channel 627 - 1 . The second grip sensor 621-2, which is one of the two grip sensors 621-1 and 621-2 constituting the sensor module 250, electrically connects or functionally connects k antennas. Contains ports to be connected to CH_sensing #k+1(625-k+1).... CH_sensing #n(625-n), drive voltage (Vdd) 623 and default reference channel 627-2. can do. The first grip sensor 621-1 and the second grip sensor 621-2 may further include a port for sharing information with each other. The second grip sensor 621 - 2 may further include a port for outputting a sensing value 629 according to a change in capacitance. The k may be n/2.

6C is a diagram illustrating another implementation example of a detection circuit for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 6C , a sensor module (eg, the sensor module 250 of FIG. 2 ) according to an exemplary embodiment may include n grip sensors 631-1....631-n. Each of the n grip sensors 631-1....631-n constituting the sensor module 250 includes n antennas (eg, the first to nth antennas 240-1... Path (CH_sensing #1(635-1).... CH_sensing #n(635-n)), driving voltage (Vdd)(633) ) and ports to be connected to the default reference channels 637-1 ... 637-N. The first grip sensor 631-1 to the n-th grip sensor 631-n may further include a port for sharing information with each other. The n-th grip sensor 631 - n may further include a port for outputting a sensing value 639 according to a change in capacitance.

FIG. 7A is a diagram illustrating an example of a block configuration of a detection circuit for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 7A , the detection circuit (eg, the sensor module 250 of FIG. 2 ) according to an embodiment includes a switching circuit 710a, a comparison circuit 720a, or an analog/digital converter (ADC). ) 730a.

The switch circuit 710a includes n sensing channels (CH_sensing #1 (740a-1).... CH_sensing #n (740a-n)) (eg, the first to n-th sensing channels CH_sensing # in FIG. 2 ). 1 (270-1).... CH_sensing #n (270-n)) and a default reference channel (CH_reference (750a)), and at least one sensing channel output 760a and reference channel output 770a For example, the switching circuit 710a connects at least one of the n sensing channels (CH_sensing #1(740a-1)....CH_sensing #n(740a-n)) to the sensing channel output 760a ), and selects one of the n sensing channels (CH_sensing #1 (740a-1).... CH_sensing #n (740a-n)) or a default reference channel (CH_reference (750a)) as a reference channel can be switched to output 770a.

The comparison circuit 720a compares the reference capacitance value sensed from the reference channel output 770a of the switch circuit 710a and at least one of the switch circuit 710a to the sensing capacitance sensed from the sensing channel output 760a. The values may be compared, and a sensing signal 780a may be output based on the result. The comparison circuit 720a, for example, may detect a degree of change in the sensed capacitance value based on the reference capacitance value, and when the detected degree of change exceeds a threshold level, the human body approaches It is possible to output a sensing signal 780a that detects .

The ADC 730a may output a sensing value 790a obtained by converting the analog sensing signal 780a output from the comparison circuit 720a into a digital sensing signal.

FIG. 7B is a diagram illustrating another example of a block configuration of a detection circuit for detecting a change in capacitance in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 7B , the detection circuit (eg, the sensor module 250 of FIG. 2 ) according to an embodiment includes a switching circuit 710b, an analog/digital converter (ADC) 720b, or a comparison circuit 710b. circuit 730b.

The switch circuit 710b includes n sensing channels (CH_sensing #1 (740b-1).... CH_sensing #n (740b-n)) (eg, the first to n-th sensing channels CH_sensing # in FIG. 2 ). 1(270-1).... CH_sensing #n(270-n)) and a default reference channel (CH_reference(750b)), and at least one sensing channel output 760b and reference channel output 770b For example, the switching circuit 710b selects at least one of the n sensing channels (CH_sensing #1 (740b-1)....CH_sensing #n (740b-n)) to the sensing channel output 760b. ), and selects one of the n sensing channels (CH_sensing #1 (740b-1).... CH_sensing #n (740b-n)) or the default reference channel (CH_reference (750b)) as a reference channel can be switched to output 770b.

The ADC 720b digitally converts the analog-type reference capacitance value 770b output from the switch circuit 710b and at least one analog-type sensing capacitance value 760b output from the switch circuit 710b. The type reference capacitance value 783b and at least one sensing capacitance value 781b may be converted and output.

The comparison circuit 730b compares the digital type reference capacitance value 783b output from the ADC 720b with at least one sensing capacitance value 781b output from the ADC 720b, and as a result A sensing signal 790b may be output based on . The comparison circuit 730b may detect, for example, a degree of change in the sensed capacitance value based on the reference capacitance value, and when the detected degree of change exceeds a threshold level, the human body approaches A sensing signal 790b that detects .

8 is a diagram illustrating a structure of a switching circuit constituting a detection circuit included in an electronic device (eg, the electronic device 101 of FIG. 1 ) according to an embodiment.

Referring to FIG. 8 , the switching circuit (eg, the switch circuit 710a of FIG. 7A or the switch circuit 710b of FIG. 7B ) according to an embodiment includes a first switch 810 and a second switch 820 . can do.

According to an embodiment, the first switch 810 includes n input terminals a1' and a1'' and output terminals b1' and b1 corresponding to the n input terminals a1' and a1'', respectively. '' or c1', c1''). The n input terminals a1' and a1'' included in the first switch 810 are the n sensing channels 830-1....830-n (eg, the first to second terminals of FIG. 2 ). It may be electrically connected to an n sensing channel (CH_sensing #1(270-1).... CH_sensing #n(270-n)) 2n output terminals b1' included in the first switch 810; b1'' or c1', c1'' may be electrically connected to 2n output lines OUT_11 (861), OUT_12 (863).... OUT_n1 (865), OUT_n2 (867). One switch 810 may be controlled by a first control signal CON_SW_1 840 provided from an external (eg, the processor 210 of FIG. 2 ), that is, the first switch 810 may be controlled by a control signal ( A reference channel output terminal c1' or c1'' switched by CON_SW_1 840 to connect one of the n sensing channels 830-1....830-n to the input of the second switch 820 ) can be connected to

According to an embodiment, the second switch 810 may include n sensing channel input terminals a2' and a2'', one default reference channel input terminal a2''', and one output terminal b2. can The n sensing channel input terminals a2 ′ and a2 ″ included in the second switch 820 are n connected to the reference channel output terminal c1 ′ or c1 ″ included in the first switch 810 . The output lines OUT_12 863 ... OUT_n2 867 may be electrically connected. One default reference channel input terminal a2''' included in the second switch 820 is a default reference channel. (CH_reference 870) (eg, the default reference channel 280 of Fig. 2) may be electrically connected. One output terminal b2 included in the second switch 820 is a final output line OUT_reference 880. )) The second switch 820 may be controlled by a second control signal CON_SW_2 850 provided from an external (eg, the processor 210 of FIG. 2 ). The second switch 820 is switched by the control signal CON_SW_2 850 to select one of n sensing channel input terminals a2', a2'' and one default reference channel input terminal a2'''. It may be connected to the output terminal b2 connected to the final output line OUT_reference 880. The second control signal CON_SW_2 850 may be the same as or different from the first control signal CON_SW_1 840. The first control signal CON_SW_1 840 and the second control signal CON_SW_2 850 may be independently provided from the outside or provided to be shared.

FIG. 9A is a diagram illustrating an operation example of a switching circuit that enables switching of a reference channel to a first operation mode in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 9A , in a first operation mode (eg, the first operation mode in Table 1) according to an embodiment, the first switch 810 is configured to be an nth control signal (CON_SW_1) 840 by A path may be formed so that the sensing channel (CH_sensing #n) 830 - n may be used as a reference channel. For example, in the first switch 810, the input terminal a'' to which the n-th sensing channel (CH_sensing #n) 830-n is electrically connected by the first control signal CON_SW_1 840 is connected to the second switch ( It may be switched to be connected to the output terminal c1'' connected to the line OUT_n2 867 connected to the input terminal a2'' of the 820 .

In the first operation mode according to an embodiment, the second switch 820 is a line OUT_n2 connecting the output terminal c1 ″ of the first switch 810 by the second control signal CON_SW_2 850 . The input terminal a2'' connected to the 867 may be switched to be connected to the output terminal b2. In this case, the reference capacitance value output by the output terminal b2 of the second switch 820 may be transmitted to the final output line OUT_reference 880 .

FIG. 9B is a diagram illustrating an operation example of a switching circuit that enables switching of a reference channel to a second operation mode in an electronic device (eg, the electronic device 101 of FIG. 1 ) according to an embodiment.

Referring to FIG. 9B , in the second operation mode (eg, the second operation mode in Table 1) according to an exemplary embodiment, the first switch 810 operates the first switch 810 according to the first control signal CON_SW_1 840 . A path may be formed so that the sensing channel (CH_sensing #1) 830-1 can be used as a reference channel. For example, in the first switch 810 , the input terminal a′ to which the first sensing channel CH_sensing #1 830-1 is electrically connected by the first control signal CON_SW_1 840 is connected to the second switch 820 . ) may be switched to be connected to the output terminal c1' connected to the line (OUT_12) 863 connected to the input terminal a2'.

In the second operation mode according to an embodiment, the second switch 820 connects the output terminal c1' of the first switch 810 by the second control signal CON_SW_2 850 to the line OUT_12 ( The input terminal a2' connected to the 863 may be switched to be connected to the output terminal b2. In this case, the reference capacitance value output by the output terminal b2 of the second switch 820 may be transmitted to the final output line OUT_reference 880 .

FIG. 9C is a diagram illustrating an operation example of a switching circuit that enables switching of a reference channel to a third operation mode in an electronic device (eg, the electronic device 101 of FIG. 1 ) according to an embodiment.

Referring to FIG. 9C , in the third operation mode (eg, the third operation mode in Table 1) according to an exemplary embodiment, the first switch 810 operates n units by the first control signal CON_SW_1 840 . A path may be formed so that none of the sensing channels CH_sensing #1....CH_sensing #n 830-1....830-n is used as a reference channel. For example, the first switch 810 may control n sensing channels CH_sensing #1....CH_sensing #n 830-1....830-n by the first control signal CON_SW_1 840 . So that the electrically connected input terminals (a', a1'') are connected to the output terminals (b1', b1'') connected to the lines (OUT_11.... OUT_n1) (861, 865) for inputting the sensing capacitance value. can be switched

In the third operation mode according to an embodiment, the second switch 820 is electrically connected to the default reference channel CH_reference 870 by the second control signal CON_SW_2 850 to the default reference channel input terminal a2'. '') may be switched to be connected to the output terminal b2. In this case, the reference capacitance value output by the output terminal b2 of the second switch 820 may be transmitted to the final output line OUT_reference 880 .

10 is a diagram illustrating a control flow for controlling transmission power in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 10 , in operation 1010 according to an embodiment, the electronic device 101 performs each of the plurality of antennas (eg, the first to n-th antennas 240-1 ... 240-n of FIG. 2 ). You can check the operating status of . An operation state of each of the plurality of antennas may be, for example, one of the first to third operation modes defined in <Table 1>, or one of the first or second operation modes defined in <Table 2>. can be one

In operation 1020 according to an embodiment, the electronic device 101 considers the operation state of each antenna and based on one of the first paths electrically connecting each of the plurality of antennas and the second path grounded through the capacitive element. path can be determined. For example, the electronic device determines a path separately set for the first to third operation modes in <Table 1> as a reference path, or determines a path set for each first or second operation mode in <Table 2> as a reference path can be decided with Reference paths determined for each of the first to third operation modes defined in <Table 1> are shown in FIGS. 3 to 5 .

As an example, the electronic device 101 may determine, as a reference path, a first path for electrically connecting an antenna whose capacitance change amount is small among a plurality of antennas and whose transmission/reception operation is inactive. The electronic device 101 may determine a first path for electrically connecting an antenna having a large capacitance change amount and an active transmission/reception operation among the plurality of antennas as a path to obtain a first capacitance value.

As another example, the electronic device 101 may determine the second path as the reference path when the capacitance variation of all of the plurality of antennas is large and the transmission/reception operation is active. The electronic device 101 may determine the first paths as paths for obtaining the first capacitance value when the capacitance change amount of all of the plurality of antennas is large and the transmission/reception operation is active.

In operation 1030 according to an embodiment, the electronic device 101 compares the sensing capacitance value obtained through at least one sensing path among the sensing channels and the reference capacitance value obtained through one of the sensing channel or the default reference channel. Based on this, the degree of capacitance conversion can be confirmed. The electronic device 101 may generate a sensing value according to the confirmed degree of conversion of the capacitance, and determine whether to approach the human body based on the generated sensing value. The electronic device 101 has a switch circuit (eg, the switch circuit 710a of FIG. 7A or the switch circuit 710b of FIG. 7B ) to form a path for obtaining at least one sensing capacitance value and a reference capacitance value ) can be controlled. Examples of forming a path for obtaining the reference capacitance value determined for each of the first to third operation modes defined in Table 1 are shown in FIGS. 9A to 9C .

11 is a diagram illustrating an antenna arrangement in an electronic device (eg, the electronic device 101 of FIG. 1 ) according to an exemplary embodiment.

Referring to FIG. 11 , in the electronic device 101 according to an exemplary embodiment, a display 1110 may be disposed on a front surface (a), and a plurality of antennas 1120 , 1130 , and 1140 may be disposed on a rear surface (b) of the electronic device 101 . can be placed. Among the antennas disposed on the rear surface, first and second antennas 1120 and 1130 may be disposed adjacent to each other, and a third antenna 1140 may be spaced apart from the first and second antennas 1120 and 1130 . Noise levels from the first and second antennas 1120 and 1130 disposed adjacent to each other can be accurately monitored to maximize the effect of compensating for the noise levels.

12 is a diagram illustrating an example of using a reference channel for a folder structure in an electronic device (eg, the electronic device 101 of FIG. 1 ), according to an embodiment.

Referring to FIG. 12 , the electronic device 101 according to an embodiment electrically connects first and second antennas 1210 and 1220 disposed adjacently to a grip integrated circuit (IC) 1240 through a sensing channel. have. The grip IC 1240 may be electrically connected to a ground terminal such as the metal 1250 through a reference channel.

For example, in the case of a grip sensor having three or more multi-use channels, the channel that electrically connects the first antenna 1210 by connecting the extra channel to the metal 1250 like a camera module is closed as the folder is closed. Due to overlapping with the metal 1250, it can be applied when use is not possible.

While this disclosure has been particularly shown and described with reference to specific embodiments, various changes in form and detail may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. It will be understood by those skilled in the art.

According to an embodiment of the present disclosure, the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a plurality of antennas (eg, the first to n-th antennas ANT#1 to ANT#n of FIG. 2 ) ) (240-1, 240-n)); a detection circuit configured to be electrically coupled to at least two antennas included in the plurality of antennas and output a sensing signal by detecting a change in capacitance (eg, the sensor module 250 of FIG. ); and at least one processor (eg, the processor 210 of FIG. 2 ) configured to control transmission power according to the sensing signal output from the detection circuit, wherein the detection circuit comprises: the at least two antennas; At least two first ports configured to be electrically coupled, a second port configured to be grounded through a capacitive element (eg, the capacitor C1 260 of FIG. 2 ), and the at least two first ports; a first input terminal coupled to at least two first input terminals, a second input terminal coupled to the second port, and a plurality of output terminals, wherein at least one of the at least two first input terminals is at least one of the plurality of output terminals 1 output terminal, and a switch circuit configured to connect one of the at least two first input terminals and the second input terminal to a second output terminal that is one of the plurality of output terminals (eg, the switch circuit 710a of FIG. 7A ) or the switching circuit 710b of FIG. 7B), and the sensing signal is output by a result of comparing the first measured value obtained from the at least one first output terminal and the second measured value obtained from the second output terminal It may be configured to include a third port.

According to an embodiment of the present disclosure, the switching circuit may include a first switch (eg, the first switch of FIG. 8 ) configured to connect each of the at least two first input terminals to one of the first output terminal or the third output terminal. 810) and a second switch (eg, the second switch 820 of FIG. 8 ) configured to connect one of the third output terminal and the second input terminal to the second output terminal.

According to an embodiment of the present disclosure, the detection circuit may include a comparator configured to compare the first measured value and the second measured value to output a capacitance offset value (eg, the comparison circuit of FIG. 7A ( 70a)), and an analog/digital converter (eg, ADC 730a of FIG. 7A ) configured to output the sensing signal obtained by converting the capacitance offset value output from the comparator into a digital signal to the third port can do.

According to an embodiment of the present disclosure, the detection circuit includes an analog/digital converter (eg, FIG. ADC 720b of 7b), and a comparator configured to output the sensing signal to the third port by a capacitance offset value obtained by comparing the first digital value with the second digital value (example : Comparison circuit 730b of FIG. 7B) may be included.

According to an embodiment of the present disclosure, the at least one processor is configured to connect a first input terminal electrically coupled to an antenna in which a change in capacitance is small among the at least two antennas and a transmission/reception operation is in an inactive state to the second The switch circuit may be controlled to be connected to an output terminal.

According to an embodiment of the present disclosure, the at least one processor is configured to connect a first input terminal electrically coupled to an antenna in which a capacitance change amount is large among the at least two antennas and a transmission/reception operation is in an active state, to the first input terminal. The switch circuit may be controlled to be connected to an output terminal.

According to an embodiment of the present disclosure, the at least one processor is configured to connect the at least two first input terminals to the first output terminal when both of the at least two antennas have a large capacitance change and a transmission/reception operation is active. and the switch circuit may be controlled to connect the second input terminal to the second output terminal.

According to an embodiment of the present disclosure, an operation method in an electronic device (eg, the electronic device 101 of FIG. 1 ) includes an operation of checking an operation state of each of a plurality of antennas (eg, operation 1010 of FIG. 10 ). ); An operation of determining, as a reference path, one of the first paths electrically connecting each of the plurality of antennas and the second path grounded through the capacitive element in consideration of the operation state of each antenna (eg, the operation of FIG. 10 ) 1020); and outputting a sensing value according to capacitance conversion based on a first capacitance value obtained through one of the first paths and a second capacitance value obtained through the reference path (eg, the operation of FIG. 10 ) 1030) may be included.

According to an embodiment of the present disclosure, the determining of the reference path may include determining a first path for electrically connecting an antenna whose capacitance change amount is small among the plurality of antennas and whose transmission/reception operation is in an inactive state as the reference. It may include an operation for determining a path.

According to an embodiment of the present disclosure, a first path for electrically connecting an antenna having a large capacitance change amount and an active transmission/reception operation among the plurality of antennas is selected as a path to obtain the first capacitance value. It may further include an operation of determining.

According to an embodiment of the present disclosure, the determining of the reference path includes determining the second path as the reference path when the capacitance variation of all of the plurality of antennas is large and the transmission/reception operation is active. It can include actions.

According to an embodiment of the present disclosure, when all of the plurality of antennas have a large capacitance change amount and a transmission/reception operation is in an active state, the operation of determining the first paths as paths to obtain the first capacitance value may further include.

Methods according to the embodiments described in the claims or specifications of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented in software, a computer-readable storage medium storing one or more programs (software modules) may be provided. One or more programs stored in the computer-readable storage medium may be configured to be executable by one or more processors in an electronic device (configured for execution). One or more programs may include instructions for causing an electronic device to execute methods according to embodiments described in a claim or specification of the present disclosure.

Such programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), electrically erasable programmable ROM (EEPROM: electrically erasable programmable read only memory), magnetic disc storage device, compact disc ROM (CD-ROM), digital versatile discs (DVDs), or other types of It may be stored in an optical storage device or a magnetic cassette. Alternatively, it may be stored in a memory composed of a combination of some or all thereof. In addition, each configuration memory may be included in plurality.

In addition, the program is transmitted through a communication network consisting of a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that can be accessed. Such a storage device may be connected to a device implementing an embodiment of the present disclosure through an external port. In addition, a separate storage device on the communication network may be connected to the device implementing the embodiment of the present disclosure.

The scope of protection may be defined by the appended independent claims. Additional features may be specified by the appended dependent claims. Example implementations may be realized by including one or more features taken jointly and individually from any claim, in any and all permutations.

Examples described in this disclosure include non-limiting example implementations of components corresponding to one or more features specified by the appended independent claims, and those features (or their corresponding components), individually or in combination, may contribute to improving one or more technical problems that can be inferred by a person skilled in the art from the present disclosure.

Also, one or more selected components of any one example described in this disclosure may be combined with one or more selected components of one or more other examples described in this disclosure, or alternatively It may be combined with the features of the independently appended independent claims to form further examples.

Additional example implementations include one or more components taken jointly and individually, in any and all permutations of any implementation described herein. can be realized by Still other example implementations may also be realized by combining one or more features of the appended claims with selected one or more components of any example implementation described in this disclosure.

In forming such additional example implementations, some components of any example implementation described in this disclosure may be omitted. One or more components that may be omitted are components that a person skilled in the art would directly and clearly recognize as not so essential to the functioning of the present technology in light of technical problems discernible from the present disclosure. A person of ordinary skill in the art believes that even if these omitted components are replaced or removed, there is no need to modify other components or features of the further alternative example to compensate for the change. would recognize the point. Accordingly, further example implementations, in accordance with the present technology, may be included within this disclosure, even if a selected combination of features and/or components thereof is not specifically recited.

Two or more physically separate components of any described example implementation may alternatively be incorporated into a single component, if their integration is possible, and may be incorporated into a single component so formed. If the same function is performed by the Conversely, a single component of any example implementation described in this disclosure may alternatively be implemented as two or more separate components that achieve the same functionality, where appropriate.

In the specific embodiments of the present disclosure described above, elements included in the disclosure are expressed in the singular or plural according to the specific embodiments presented. However, the singular or plural expression is appropriately selected for the context presented for convenience of description, and the present disclosure is not limited to the singular or plural element, and even if the element is expressed in plural, it is composed of the singular or singular. Even an expressed component may be composed of a plurality of components.

Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

Claims (12)

In an electronic device,
a plurality of antennas;
a detection circuit electrically coupled to at least two antennas included in the plurality of antennas and configured to detect a change in capacitance and output a sensing signal; and
at least one processor configured to control transmission power by the sensing signal output from the detection circuit,
Here, the detection circuit is
at least two first ports configured to be electrically coupled to the at least two antennas;
a second port configured to be grounded through a capacitive element;
at least two first input terminals coupled to the at least two first ports, a second input terminal coupled to the second port, and a plurality of output terminals; a switch circuit configured to connect to a first output terminal that is at least one of a plurality of output terminals, and to connect one of the at least two first input terminals and the second input terminal to a second output terminal that is one of the plurality of output terminals; and
and a third port through which the sensing signal is output according to a result of comparing the first measured value obtained from the at least one first output terminal with the second measured value obtained from the second output terminal.
According to claim 1, wherein the switching circuit,
a first switch configured to connect each of the at least two first input terminals to one of the first output terminal or the third output terminal;
and a second switch configured to connect one of the third output terminal and the second input terminal to the second output terminal.
The method of claim 1, wherein the detection circuit comprises:
a comparator configured to compare the first measured value with the second measured value to output a capacitance offset value; and
and an analog/digital converter configured to output the sensing signal obtained by converting the capacitance offset value output from the comparator into a digital signal to the third port.
According to claim 1, wherein the detection circuit,
an analog/digital converter configured to convert the first measured value and the second measured value into a digital signal to output a first digital value and a second digital value; and
and a comparator configured to output the sensing signal to the third port according to a capacitance offset value obtained by comparing the first digital value with the second digital value.
The method of claim 1, wherein the at least one processor comprises:
and controlling the switch circuit to connect a first input terminal electrically coupled to an antenna in which a change in capacitance of the at least two antennas is small and a transmission/reception operation is inactive to the second output terminal.
The method of claim 1, wherein the at least one processor comprises:
and controlling the switch circuit to connect a first input terminal electrically coupled to an antenna having a large capacitance change amount among the at least two antennas and in an active transmission/reception operation state to the first output terminal.
The method of claim 1, wherein the at least one processor comprises:
When both of the at least two antennas have a large capacitance change and a transmission/reception operation is active, the at least two first input terminals are connected to the first output terminal, and the second input terminal is connected to the second output terminal. An electronic device for controlling the switch circuit.
A method of operation in an electronic device, comprising:
checking an operation state for each of the plurality of antennas;
determining, as a reference path, one of first paths electrically connecting each of the plurality of antennas and a second path grounded through a capacitive element in consideration of an operation state of each antenna; and
and outputting a sensing value according to capacitance conversion based on a first capacitance value obtained through one of the first paths and a second capacitance value obtained through the reference path.
The method of claim 8, wherein the determining of the reference path comprises:
and determining, as the reference path, a first path for electrically connecting an antenna whose capacitance change amount is small among the plurality of antennas and whose transmission/reception operation is inactive.
9. The method of claim 8,
The method further comprising: determining, as a path to obtain the first capacitance value, a first path for electrically connecting an antenna in which a change in capacitance is large among the plurality of antennas and a transmission/reception operation is activated .
The method of claim 8, wherein the determining of the reference path comprises:
and determining the second path as the reference path when all of the plurality of antennas have a large capacitance variation and a transmission/reception operation is active.
12. The method of claim 11,
If all of the plurality of antennas have a large capacitance change amount and a transmission/reception operation is in an active state, determining the first paths as paths for obtaining the first capacitance value.

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