Electronic device for supporting finger touch interaction and operating method thereof

Abstract

Various embodiments of the present invention relate to an electronic device and a method for operating the device for supporting finger touch interaction using the return loss of a radio frequency signal. The present invention can release a radio frequency signal through an antenna and measure the return loss of the antenna. Based on the measured return loss, it can be determined whether multiple fingers within a preset distance from the antenna are touching each other, thereby providing touch interaction between multiple fingers.

Description

Technical Field

[0001] Various embodiments of the present invention relate to an electronic device and an operating method thereof for supporting finger touch interaction using return loss of a radio frequency signal. Background Art

[0002] At present, the technology that supports finger touch interaction is mainly implemented using cameras. The above technology uses the finger position information captured by the RGB camera or the depth camera to distinguish whether one finger is touching another finger. However, the fingers that touch according to the position and direction of the hand cannot be distinguished by the camera because they are blocked by the back of the hand or other fingers. Methods for tracking the position of fingers without being restricted by the position and angle of the camera include methods that use the deformation of the back of the hand based on the movement of the fingers and methods that use the deformation of the wrist and arm. However, because these methods indirectly infer the position of the finger from the deformation of other parts other than the fingers, it is difficult to distinguish whether it is a touch based on subtle finger movement. In addition, it is difficult to distinguish subtle finger movements by using Doppler radar to measure the movement of the hand to recognize gestures or using motion sensors. Summary of the Invention

[0003] Various embodiments of the present invention provide an electronic device and an operating method thereof, which can precisely distinguish whether a finger is touching by detecting a change in the return loss of an antenna caused by a finger ring formed when two fingers touch.

[0004] The operating method of the electronic device according to various embodiments of the present invention may include: releasing a radio frequency signal through an antenna and measuring the return loss of the antenna; and determining whether a plurality of fingers within a preset distance from the antenna are touching based on the measured return loss.

[0005] The electronic device of various embodiments of the present invention may include: an antenna; and a processor connected to the antenna, releasing a radio frequency signal through the antenna, measuring the return loss of the antenna, and confirming whether multiple fingers within a preset distance from the antenna are touching based on the measured return loss.

[0006] Various embodiments of the present invention are electronic devices used for at least one of virtual reality (VR), augmented reality (AR), or mixed reality (MR), and include a controller held by a user, an antenna configured for the controller, and a processor connected to the antenna. The processor can release a radio frequency signal through the antenna, measure the antenna's return loss, and determine whether multiple fingers are touching based on the measured return loss, thereby providing interaction with the touch between the multiple fingers.

[0007] According to various embodiments of the present invention, the present invention provides the following effect, namely, an electronic device can easily confirm whether multiple fingers are touching each other using an antenna. As a result, the electronic device can also accurately and stably detect the subtle finger movements used for touching between multiple fingers. Therefore, the electronic device can easily recognize a pinch gesture representing a finger ring, respond to the pinch gesture, and provide interaction. Such an electronic device can be effectively used for at least one of virtual reality (VR), augmented reality (AR), or mixed reality (MR). BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 、 Figure 2 and Figure 3 Graphs are used to illustrate operating characteristics of various embodiments.

[0009] Figure 4 1 is a diagram illustrating an electronic device according to various embodiments.

[0010] Figure 5 To show Figure 4 FIG. 1 is a diagram showing an example of an electronic device.

[0011] Figure 6 For illustrative purposes only Figure 5 Diagram of the antenna.

[0012] Figure 7 is a graph for illustratively illustrating return loss measured according to various embodiments.

[0013] Figure 8 FIG. 1 is a diagram for illustrating interactions provided according to various embodiments.

[0014] Figure 9 The diagrams illustrate operating methods of electronic devices according to various embodiments. DETAILED DESCRIPTION

[0015] Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

[0016] When a radio frequency signal propagates through a medium, if the impedance of the medium suddenly changes, part of the incident signal will be reflected, and the remaining part of the incident signal will be transmitted. The ratio of the incident signal to the reflected signal is called return loss. When a radio frequency signal is incident on an antenna, part of the signal will be reflected due to the impedance difference between the antenna and the signal generator. This phenomenon is called the return loss of the antenna. A vector network analyzer (hereinafter referred to as VNA) measures antenna parameters such as return loss. When a high-frequency signal is incident on an antenna connected to the port of the design under test (DUT), the signal generator of the network analyzer can measure the return loss of the antenna.

[0017] Figure 1 、 Figure 2 and Figure 3 Graphs are used to illustrate operating characteristics of various embodiments.

[0018] Reference Figure 1 、 Figure 2 and Figure 3 In various embodiments, to confirm whether a person's multiple fingers 120 are touching, a change in return loss measured when the impedances of the antenna 110 and the multiple fingers 110 are electromagnetically coupled to each other can be used. Hereinafter, a touch between multiple fingers may refer to a finger ring (finger pinch) formed by multiple fingers. In this case, the finger ring may be formed by direct contact between multiple fingers, or by multiple fingers and conductors as multiple fingers pick up and place conductors, or by conductors of multiple fingers as multiple fingers simultaneously contact the skin. On the other hand, non-touch between multiple fingers means that the multiple fingers are not touching, but are separated, that is, spaced apart.

[0019] The human body is a conductor for radio frequency signals, and therefore, current may be induced to flow toward the plurality of fingers 120 by the electric field of the radio frequency signal released from the antenna 110. In this case, Figure 2 As shown in FIG, an equivalent circuit for the antenna 110 and the plurality of fingers 120 can be expressed. Therefore, due to the impedance (inductance) components of the antenna 110 and the plurality of fingers 120, the impedances of the antenna 110 and the plurality of fingers 120 that are close to each other may be combined. In this case, Figure 1 As shown in part (a) of FIG. 1 , multiple fingers 120 touch each other to form a finger ring, or as shown in FIG. Figure 1As shown in part (b) of FIG, as the fingers 120 are not in contact with each other but are spaced apart, the capacitance components of the fingers 120 may change. The change in capacitance components due to the presence or absence of contact between the fingers 120 may cause a change in the impedance of the combination of the antenna 110 and the fingers 120, which in turn causes a change in the measured return loss.

[0020] like Figure 3 As shown, the change in the measured return loss can exhibit a predetermined tendency and a large change value depending on whether multiple fingers 120 are touching. That is, when multiple fingers 120 are touching, the measured return loss is large, and when multiple fingers 120 are not touching, the measured return loss is small. For example, when multiple fingers 120 are touching, the measured return loss can be greater than -20 dB, and when multiple fingers 120 are not touching, the measured return loss can be less than -20 dB. In other words, if multiple fingers 120 are separated from each other during the process of touching, the measured return loss may decrease significantly. For example, the change value of the measured return loss can be greater than 20 dB.

[0021] Figure 4 FIG. 4 is a diagram illustrating an electronic device 400 according to various embodiments. Figure 5 To show Figure 4 FIG. 1 is a diagram of an example of an electronic device 400 . Figure 6 For illustrative purposes only Figure 5 FIG. 4 is a diagram of antenna 430 . Figure 7 is a graph for illustratively illustrating return loss measured according to various embodiments. Figure 8 FIG. 1 is a diagram for illustrating interactions provided according to various embodiments.

[0022] Reference Figure 4 , the electronic device 400 in various embodiments may include at least one of a battery module 410, a controller 420 (controller), an antenna 430, a memory 440 (memory) or a processor 450 (processor). In one embodiment, at least one of the structural elements of the electronic device 400 may be omitted, and at least one other structural element may be added. In one embodiment, at least two of the structural elements of the electronic device 400 may be embodied as a circuit merged into one. In one embodiment, the electronic device 400 may be an electronic device used in at least one of virtual reality (VR), augmented reality (AR) or mixed reality (MR).

[0023] Battery module 410 can manage power used in at least one of the components of electronic device 400. Battery module 410 may include a battery and a power management module. Essentially, the battery can store power. In this case, the battery can be removed from electronic device 400. For example, the battery can include a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. The power management module can manage the power of the battery. In this case, the power management module can manage the power supplied from the battery to at least one of the components of electronic device 400.

[0024] The controller 420 may be provided for generating user input. In this case, the controller 420 generates user input based on the user's motion. In one embodiment, the controller 420 may include at least one button. According to various embodiments, the controller 420 may be gripped by a user's finger. In this case, an axis may be formed running through the controller 420, and the controller 420 may be gripped by multiple fingers around the axis. Furthermore, the multiple fingers gripping the controller 420 may touch each other or drop the controller 420 due to not touching each other.

[0025] Antenna 430 may be provided for releasing radio frequency signals. Figure 5 As shown, the antenna 430 can be configured on the controller 420. Thus, when the controller 420 is held by multiple fingers, the multiple fingers can be located within a preset distance from the antenna 430. The antenna 430 can be configured along a length direction parallel to an axis formed on the controller 420. Thus, the length direction in which the multiple fingers touch each other during the process of holding the controller 420 can be parallel to the length direction of the antenna 430. For example, Figure 6 As shown, the antenna 430 may be in a V shape. That is, the antenna 430 may include a feeding line 631 powered by the processor 450 and a ground line 633 for grounding. The feeding line 631 and the ground line 633 are not electrically connected but may be in a V shape.

[0026] The memory 440 can store various data used by at least one component of the electronic device 400. For example, the memory 440 may include at least one of a volatile memory and a non-volatile memory. The data may include at least one program and input data or output data related thereto. The program may be stored in the memory 440 as software including at least one instruction, and may include at least one of an operating system, middleware, or application program.

[0027] The processor 450 may control at least one structural element of the electronic device 400 by executing the program in the memory 440. Thus, the processor 450 may perform data processing or calculation. In this case, the processor 450 may execute the instructions stored in the memory 440.

[0028] The processor 450 can confirm whether multiple fingers are touching each other through the antenna 430. To this end, the processor 450 can release a radio frequency signal through the antenna 430 and measure the return loss of the antenna 430. Moreover, the processor 450 can determine whether multiple fingers within a preset distance from the antenna 430 are touching each other based on the measured return loss. That is, during the period when multiple fingers hold the controller 420, if Figure 7 As shown, the processor 450 can determine whether the multiple fingers are touching based on the measured return loss. As described above, the return loss of the antenna 430 can change according to the change in impedance of the connection between the antenna 430 and the multiple fingers caused by the touch between the multiple fingers. Therefore, the processor 450 can determine whether the multiple fingers are touching based on the measured return loss.

[0029] For example, the processor 450 may include a measurement signal generation module 451 and a reflection signal measurement module 455. As an example, the measurement signal generation module 451 and the reflection signal measurement module 455 may constitute a network analyzer, with the measurement signal generation module 451 functioning as a signal generator for the network signal analyzer. The measurement signal generation module 451 may release a radio frequency signal through the antenna 430. Specifically, the measurement signal generation module 451 may supply power to the feeder 631 of the antenna 430 and utilize the feeder 631 and the ground line 633 to release the radio frequency signal. The reflection signal measurement module 455 may measure the return loss of the antenna 430. Furthermore, the reflection signal measurement module 455 may determine whether multiple fingers are touching based on the measured return loss. In this case, the reflection signal measurement module 455 may confirm the touch by comparing the measured return loss with a preset reference value. When the measured return loss is greater than the reference value, the reflection signal measurement module 455 may confirm the touch. Furthermore, the reflection signal measuring module 455 may track a change in the measured return loss, and when the change is greater than a preset threshold, a touch between multiple fingers may be confirmed.

[0030] Thus, the processor 450 can provide interaction for touches between multiple fingers. In this case, the processor 450 can identify a pinch gesture representing a finger ring from the touches between the multiple fingers, and can provide interaction in response to the pinch gesture. The finger ring can be formed by direct contact of multiple fingers or by multiple fingers and conductors as multiple fingers pick up and place conductors, or by multiple fingers and conductors as multiple fingers contact the skin at the same time. The interaction may include interaction in one of virtual reality, augmented reality, or mixed reality. For example, the interaction may include at least one of executing a preset function, picking up and placing a virtual object in the positions of the multiple fingers, or text input for the positions of the multiple fingers. As an example, if Figure 8 As shown, the processor 450 may perform pick and place for a virtual object.

[0031] Figure 9 FIG4 is a diagram illustrating an operating method of an electronic device 400 according to various embodiments.

[0032] Reference Figure 9 In step 910, the electronic device 400 may release a radio frequency signal through the antenna 430 and measure the return loss of the antenna 430. While the controller 420 is being held by multiple fingers, the processor 450 may release a radio frequency signal through the antenna 430. For example, the processor 450 may further include a grip sensor (not shown) disposed on the controller 420, and may confirm whether the multiple fingers are holding the controller 420 through the grip sensor. Thereafter, when it is confirmed that the multiple fingers are holding the controller 420, the processor 450 may release a radio frequency signal through the antenna 430. Furthermore, the processor 450 may release a radio frequency signal through the antenna 430 and measure the return loss of the antenna 430. In this case, the return loss of the antenna 430 may change according to a change in the impedance of the combination between the antenna 430 and the multiple fingers caused by the touch between the multiple fingers.

[0033] The electronic device 400 can determine whether the multiple fingers are touching each other based on the return loss measured in step 920. Figure 7As shown, processor 450 can determine whether multiple fingers are touching based on the measured return loss. As described above, the return loss of antenna 430 can change due to changes in the impedance of the combination between antenna 430 and the multiple fingers caused by the touch between the multiple fingers. Therefore, processor 450 can determine whether the multiple fingers are touching based on the measured return loss. In this case, processor 450 can determine whether the multiple fingers are touching by comparing the measured return loss with a preset reference value. When the measured return loss is greater than the reference value, processor 450 can confirm the touch between the multiple fingers. For example, the reference value can be -20 dB. That is, when the measured return loss is greater than -20 dB, processor 450 can confirm the touch between the multiple fingers. On the other hand, when the measured return loss is less than -20 dB, processor 450 can confirm that the multiple fingers are not touching, that is, the multiple fingers are not touching. After confirming a touch between the multiple fingers, processor 450 may track the change in the measured return loss. When the change is greater than a preset threshold, a touch between the multiple fingers may be confirmed. For example, the threshold may be 20 dB. That is, when the change in the measured return loss is greater than 20 dB, a touch between the multiple fingers may be confirmed, i.e., the multiple fingers are spaced apart.

[0034] In step 930, the electronic device 400 may provide interaction for touches between multiple fingers. In step 920, if touches between multiple fingers are confirmed, the processor 450 may provide interaction for touches between multiple fingers. In this case, the processor 450 may identify a pinch gesture representing a finger ring from the touches between the multiple fingers, and may provide interaction in response to the pinch gesture. The finger ring may be formed by direct contact of multiple fingers or by multiple fingers and conductors as multiple fingers pick up and place conductors, or by conductors of multiple fingers as multiple fingers simultaneously contact the skin. The interaction may include interaction in one of virtual reality, augmented reality, or mixed reality. For example, the interaction may include at least one of executing a preset function, picking up and placing a virtual object in the positions of the multiple fingers, or text input for the positions of the multiple fingers.

[0035] According to various embodiments, electronic device 400 can utilize antenna 430 to easily determine whether multiple fingers are touching. Consequently, electronic device 400 can also precisely and stably detect subtle finger movements that indicate a touch between multiple fingers. Consequently, electronic device 400 can easily recognize a pinch gesture representing a finger ring, respond to the pinch gesture, and provide interaction. Such an electronic device can be effectively used in at least one of virtual reality, augmented reality, or mixed reality.

[0036] According to various embodiments, the operating method of the electronic device 400 may include: step 910, releasing a radio frequency signal through the antenna 430 and measuring the return loss of the antenna 430; and step 920, based on the measured return loss, determining whether multiple fingers within a preset distance from the antenna 430 are touching.

[0037] According to various embodiments, the operating method of the electronic device 400 may further include step 930 of providing interaction for touches between multiple fingers.

[0038] According to various embodiments, the return loss of the antenna 430 may be changed according to a change in impedance of a combination between the antenna 430 and the plurality of fingers caused by touch between the plurality of fingers.

[0039] According to various embodiments, step 920 of confirming whether the multiple fingers are touching each other may include confirming the touch between the multiple fingers when the measured return loss is greater than a preset reference value.

[0040] According to various embodiments, step 920 of confirming whether the multiple fingers are touching each other may further include: tracking a change in the measured return loss; and confirming the touch between the multiple fingers when the change is greater than a preset threshold.

[0041] According to various embodiments, the touch between the multiple fingers may mean that the multiple fingers are in contact with each other to form a finger ring.

[0042] According to various embodiments, the interaction may include interaction in one of virtual reality, augmented reality, or mixed reality.

[0043] According to various embodiments, the antenna 430 may be disposed on the controller 420 that is held by multiple fingers.

[0044] According to various embodiments, the interaction may include at least one of executing a preset function, picking up and placing a virtual object in the positions of the plurality of fingers, or text input in the positions of the plurality of fingers.

[0045] The electronic device 400 in various embodiments may include: an antenna 430; and a processor 450, which is connected to the antenna 430, releases a radio frequency signal through the antenna 430, measures the return loss of the antenna 430, and confirms whether multiple fingers within a preset distance from the antenna 430 are touching based on the measured return loss.

[0046] According to various embodiments, the processor 450 may provide for interaction with touches between multiple fingers.

[0047] According to various embodiments, the return loss of the antenna 430 may be changed according to a change in impedance of a combination between the antenna 430 and the plurality of fingers caused by touch between the plurality of fingers.

[0048] According to various embodiments, when the measured return loss is greater than a preset reference value, the processor 450 may confirm the touch between the multiple fingers.

[0049] According to various embodiments, the processor 450 may track a change in the measured return loss, and when the change is greater than a preset threshold, a touch between multiple fingers may be confirmed.

[0050] According to various embodiments, the touch between the multiple fingers may mean that the multiple fingers are in contact with each other to form a finger ring.

[0051] According to various embodiments, the aforementioned interaction may include interaction in one of virtual reality, augmented reality, or mixed reality.

[0052] According to various embodiments, the electronic device 400 may include an electronic device including a controller 420 held by a plurality of fingers.

[0053] According to various embodiments, the antenna 430 may be configured on the controller 420 .

[0054] According to various embodiments, the interaction may include at least one of executing a preset function, picking up and placing a virtual object in the positions of the plurality of fingers, or text input in the positions of the plurality of fingers.

[0055] According to various embodiments, the controller 420 can be held by multiple fingers around an axis that passes through the controller 420 .

[0056] According to various embodiments, the antenna 430 may be arranged along a length direction parallel to an axis.

[0057] According to various embodiments, the electronic device 400 is used in at least one of virtual reality, augmented reality, or mixed reality, and may include a controller 420 held by a user's hand, an antenna 430 configured on the controller 420, and a processor 450 connected to the antenna 430.

[0058] According to various embodiments, the processor 450 may release a radio frequency signal through the antenna 430 and measure the return loss of the antenna 430 , determine whether multiple fingers of a hand are touching based on the measured return loss, and provide interaction between the multiple fingers for touch.

[0059] The above-mentioned devices can be implemented as hardware components, software components, and / or a combination of hardware components and software components. For example, the devices and components described in the embodiments can be implemented using one or more general-purpose computers or special-purpose computers such as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor (DSP), a microcomputer (field programmable gate array), a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device that can execute and respond to instructions. The processing device can execute an operating system (OS) and one or more software applications running on the above-mentioned operating system. In addition, the processing device can also access, store, operate, process, and generate data in response to the execution of the software. For ease of understanding, the processing device can be described as using a single element, but it will be understood by those skilled in the art that the processing device includes multiple processing elements and / or various types of processing elements. For example, the processing device can include multiple processors or include a processor and a controller. In addition, other processing configurations such as parallel processors are also feasible.

[0060] Software may include a computer program, code, instruction, or a combination of more than one of these, and may configure a processing device to operate as needed, or to command the processing device independently or collectively. Software and / or data may be embodied as any type of machine, component, physical device, computer storage medium, or device for interpreting instructions or data by or providing instructions or data to a processing device. Software may be distributed across networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

[0061] The methods according to various embodiments can be implemented in the form of program instructions that can be executed by various computer devices and recorded in a computer-readable medium. In this case, the medium can continue to store the computer executable program, or can be temporarily stored for execution or downloading. In addition, the medium can be multiple recording units or storage units in the form of a single or multiple hardware, and is not limited to media that directly access any system, and can be distributed on the network. As an example of the medium, magnetic media such as hard disks, floppy disks and tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floppy disks, and ROM, RAM, flash memory, etc. are included to store program instructions. In addition, as an example of another medium, it can also include recording media or storage media managed by application stores that circulate application programs, websites that provide or circulate various other software, and servers.

[0062] The various embodiments of the present invention and the terms used therefor do not limit the technology described in the present invention to a specific embodiment, but include various changes, equivalent technical solutions and / or alternative technical solutions of the corresponding embodiments. In connection with the description in the figures, similar structural elements may be given similar figure marks. As long as it is not clearly shown in the context, the expression of the singular may include the expression of the plural. In the present invention, the expression of "A or B", "at least one of A and / or B", "A, B or C" or "at least one of A, B and / or C" may include all combinations of the listed items. The expression of "first", "second", "first" or "second" may modify the corresponding structural elements regardless of order or importance, and is only used to distinguish between two structural elements, rather than to limit the corresponding structural elements. When it is mentioned that a (for example, first) structural element is "(functionally or communicatively) connected" or "connected" to other (for example, second) structural elements, the above-mentioned one structural element may be directly connected to the other structural elements or connected through other structural elements "for example, a third structural element".

[0063] The term "module" as used in the present invention includes a unit composed of hardware, software, or firmware, and can be used interchangeably with terms such as logic, logic block, component, or circuit. For example, a module can be composed of an application-specific integrated circuit (ASIC).

[0064] According to another embodiment, the described structural elements (e.g., modules or programs) may include single or multiple individuals. According to various embodiments, one or more structural elements or steps in the above-mentioned corresponding structural elements may be omitted or one or more other structural elements or steps may be added. Alternatively or additionally, multiple structural elements (e.g., modules or programs) may be merged into one structural element. In this case, the merged structural element may identically or similarly perform one or more functions of each structural element in the multiple structural elements performed by the corresponding structural element in the multiple structural elements before the merger. According to various implementations, the module, program or the steps performed by other structural elements may be performed sequentially, in parallel, repeatedly or heuristically or one or more of the steps may be performed in different orders or omitted or added to one or more other steps.

Claims

1. A method for operating an electronic device, characterized in that: include: releasing a radio frequency signal through an antenna disposed in a controller that can be held by multiple fingers and measuring a return loss of the antenna, wherein the return loss of the antenna changes according to a change in impedance caused by contact between the multiple fingers and the antenna and the multiple fingers; as well as Based on the measured return loss, determining whether a plurality of fingers within a preset distance from the antenna are touching each other, and when the measured return loss is greater than a preset reference value, confirming that the plurality of fingers are touching each other; Wherein, the touch between the plurality of fingers means that the plurality of fingers above contact each other around the controller to form a finger ring; The antenna is arranged along a length direction parallel to an axis passing through the controller held by multiple fingers, and forms the finger ring around the axis when multiple fingers touch each other.

2. The operating method of the electronic device according to claim 1, characterized in that: Also includes: Provides interaction between multiple fingers.

3. The operating method of the electronic device according to claim 1, wherein: Confirming whether the plurality of fingers are touching each other further includes: Tracking changes in the measured return loss; and When the change value is greater than a preset threshold, the touch between the plurality of fingers is confirmed.

4. The operating method of the electronic device according to claim 2, wherein: The aforementioned interactions include interactions in one of virtual reality, augmented reality, or mixed reality.

5. The operating method of the electronic device according to claim 4, characterized in that: The interaction includes at least one of executing a preset function, picking up and placing a virtual object at the positions of the plurality of fingers, or inputting text at the positions of the plurality of fingers.

6. An electronic device, characterized in that: include: antenna; as well as a processor connected to the antenna, configured to release a radio frequency signal via the antenna disposed within the controller that can be gripped by multiple fingers, measure a return loss of the antenna, and determine, based on the measured return loss, whether multiple fingers within a preset distance from the antenna are touching each other, and to determine the touch between the multiple fingers when the measured return loss is greater than a preset reference value; wherein the return loss of the antenna changes based on a change in impedance caused by the contact between the multiple fingers and the combination of the antenna and the multiple fingers; Wherein, the touch between the plurality of fingers means that the plurality of fingers above contact each other around the controller to form a finger ring; The antenna is arranged along a length direction parallel to an axis passing through the controller held by multiple fingers, and forms the finger ring around the axis when multiple fingers touch each other.

7. The electronic device according to claim 6, wherein: The processor provides interaction between touches of the plurality of fingers.

8. The electronic device according to claim 6, wherein: The processor tracks the measured change in the return loss. When the change value is greater than a preset threshold, the touch between the plurality of fingers is confirmed.

9. The electronic device according to claim 7, wherein: The aforementioned interactions include interactions in one of virtual reality, augmented reality, or mixed reality.

10. The electronic device according to claim 9, wherein: The interaction includes at least one of executing a preset function, picking up and placing a virtual object at the positions of the plurality of fingers, or inputting text at the positions of the plurality of fingers.

11. An electronic device for use in one of virtual reality, augmented reality, or mixed reality, characterized in that: include: A controller, held by the user's hand; an antenna, configured on the controller; and A processor connected to the antenna, The processor releases a radio frequency signal through the antenna disposed in the controller that can be held by multiple fingers and measures a return loss of the antenna, wherein the return loss of the antenna changes according to a change in impedance caused by contact between the multiple fingers and the antenna and the multiple fingers. Based on the measured return loss, determining whether the plurality of fingers of the hand are touching each other, and when the measured return loss is greater than a preset reference value, determining that the plurality of fingers are touching each other, Providing interaction between multiple fingers; Wherein, the touch between the plurality of fingers means that the plurality of fingers above contact each other around the controller to form a finger ring; The antenna is arranged along a length direction parallel to an axis passing through the controller held by multiple fingers, and forms the finger ring around the axis when multiple fingers touch each other.

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