Communication system, wearable device and communication method thereof

Abstract

A communication system includes a contact lens element and a wearable device. The contact lens element has a communication function. The wearable device includes a transceiver circuit, a first metal structure, a second metal structure, and a reflector. The transceiver circuit comprises a wireless communication circuit and a wireless charging circuit. The first metal structure is coupled to the wireless communication circuit, wherein the first metal structure is operable to communicate with the contact lens element. The second metal structure is coupled to the wireless charging circuit, wherein the second metal structure is operable to provide power to the contact lens element. The reflector is adjacent to the first metal structure and the second metal structure to reflect radiant energy from the first metal structure and the second metal structure.

Description

Technical Field

[0001] The present invention relates to a communication system, and more particularly to a communication system and a wearable device thereof. Background Art

[0002] With the development of mobile communication technology, mobile devices have become increasingly popular in recent years, such as laptops, mobile phones, multimedia players and other hybrid portable electronic devices. In order to meet people's needs, mobile devices usually have wireless communication functions. Some cover long-distance wireless communication ranges, such as mobile phones using 2G, 3G, LTE (Long Term Evolution) systems and the 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz frequency bands used for communication, while some cover short-distance wireless communication ranges, such as Wi-Fi, Bluetooth systems using 2.4GHz, 5.2GHz and 5.8GHz frequency bands for communication.

[0003] According to the research direction of major brands, the next generation of emerging mobile devices is likely to be "wearable devices". For example, watches, glasses, and even clothes on the body may have wireless communication functions. However, some wearable devices for specific applications are difficult to integrate with other types of communication devices, resulting in insufficient compatibility between the devices. In view of this, it is necessary to propose a new solution to overcome the problems faced by previous technologies. Summary of the invention

[0004] In a preferred embodiment, the present invention proposes a communication system, comprising: a contact lens element having a communication function; and a wearable device, comprising: a transceiver circuit, including a wireless communication circuit and a wireless charging circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; a second metal structure coupled to the wireless charging circuit, wherein the second metal structure is used to provide power to the contact lens element; and a reflector, adjacent to the first metal structure and the second metal structure, to reflect radiation energy from the first metal structure and the second metal structure.

[0005] In some embodiments, the contact lens element includes: a transceiver module wirelessly connected to the first metal structure; a power supply module wirelessly connected to the second metal structure; and a display unit coupled to the transceiver module and the power supply module.

[0006] In some embodiments, the wearable device is a head-mounted communication device.

[0007] In some embodiments, the first metal structure operates in a first frequency band, and the first frequency band is between 10 MHz and 100 MHz.

[0008] In some embodiments, the second metal structure operates in a second frequency band, and the second frequency band is between 1 MHz and 15 MHz.

[0009] In some embodiments, the first metal structure and the second metal structure are disposed on different planes.

[0010] In some embodiments, the reflector is implemented by a ferrite sheet.

[0011] In some embodiments, the wearable device further includes: a signal processing circuit coupled to the transceiver circuit.

[0012] In some embodiments, the wearable device further includes: a third metal structure coupled to the wireless communication circuit, wherein the third metal structure is used to communicate with the contact lens element.

[0013] In some embodiments, the wireless communication circuit generates a first received signal strength indication regarding the first metal structure and generates a second received signal strength indication regarding the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element based on the first received signal strength indication and the second received signal strength indication.

[0014] In some embodiments, the wearable device further includes: a third metal structure coupled to the wireless charging circuit, wherein the third metal structure is used to provide the power to the contact lens element.

[0015] In some embodiments, the wireless charging circuit generates a first power supply efficiency with respect to the second metal structure and generates a second power supply efficiency with respect to the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element according to the first power supply efficiency and the second power supply efficiency.

[0016] In some embodiments, each of the first metal structure, the second metal structure, and the third metal structure includes a coil or one or more contact electrodes.

[0017] In another preferred embodiment, the present invention proposes a communication system, comprising: a contact lens element having a communication function; and a wearable device, comprising: a transceiver circuit including a wireless communication circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; and a reflector adjacent to the first metal structure to reflect radiation energy from the first metal structure.

[0018] In another preferred embodiment, the present invention provides a wearable device that interacts with a contact lens element and includes: a transceiver circuit, including a wireless communication circuit and a wireless charging circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; a second metal structure coupled to the wireless charging circuit, wherein the second metal structure is used to provide power to the contact lens element; and a reflector, adjacent to the first metal structure and the second metal structure, to reflect radiation energy from the first metal structure and the second metal structure.

[0019] In another preferred embodiment, the present invention proposes a communication method, including: providing a wearable device, wherein the wearable device includes a transceiver circuit, a first metal structure, a second metal structure, and a reflector, the transceiver circuit includes a wireless communication circuit and a wireless charging circuit, the first metal structure is coupled to the wireless communication circuit, the second metal structure is coupled to the wireless charging circuit, and the reflector is adjacent to the first metal structure and the second metal structure; communicating with a contact lens element through the first metal structure; providing power to the contact lens element through the second metal structure; and reflecting radiation energy from the first metal structure and the second metal structure through the reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram showing a communication system according to an embodiment of the present invention is shown.

[0021] Figure 2A A cross-sectional view of a communication system according to an embodiment of the present invention is shown.

[0022] Figure 2B A partial three-dimensional diagram of a communication system according to an embodiment of the present invention is shown.

[0023] Figure 3 A schematic diagram showing a communication system according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic diagram showing a communication system according to an embodiment of the present invention is shown.

[0025] Figure 5 A flow chart of a communication method according to an embodiment of the present invention is shown.

[0026] Explanation of symbols:

[0027] 100,200,300,400: Communication system

[0028] 110,210,310,410: Wearable devices

[0029] 120,320,420: Transceiver circuit

[0030] 130,330: Wireless communication circuit

[0031] 140,440: Wireless charging circuit

[0032] 150,250: First metal structure

[0033] 160,260: Second metal structure

[0034] 170,270:Reflector

[0035] 190,290: Contact lens components

[0036] 192: Transceiver module

[0037] 194: Power supply module

[0038] 196: Display unit

[0039] 280: Helmet body

[0040] 285: Gap

[0041] 380,480: The third metal structure

[0042] 390,490:Signal processing circuit

[0043] DS: Specific distance

[0044] HB: User head

[0045] S510, S520, S530, S540: Steps

[0046] SD1: First received signal strength indicator

[0047] SD2: Second received signal strength indicator

[0048] SE1: First power supply efficiency

[0049] SE2: Second power supply efficiency DETAILED DESCRIPTION

[0050] In order to make the purpose, features and advantages of the present invention more clearly understood, specific embodiments of the present invention are given below and described in detail with reference to the accompanying drawings.

[0051] Certain words are used in the specification and claims to refer to specific components. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. The words "include" and "comprise" mentioned throughout the specification and claims are open-ended terms and should be interpreted as "include but not limited to". The word "substantially" means that within an acceptable error range, those skilled in the art can solve the technical problem and achieve the basic technical effect within a certain error range. In addition, the word "coupled" in this specification includes any direct and indirect electrical connection means. Therefore, if the text describes a first device coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device via other devices or connection means.

[0052] The following disclosure provides many different embodiments or examples to implement the different features of the present invention. The following disclosure describes specific examples of various components and their arrangements to simplify the description. Of course, these specific examples are not intended to be limiting. For example, if the present disclosure describes a first feature formed on or above a second feature, it means that it may include an embodiment in which the first feature and the second feature are in direct contact, and may also include an embodiment in which an additional feature is formed between the first feature and the second feature, so that the first feature and the second feature may not be in direct contact. In addition, different examples in the following disclosure may reuse the same reference symbols or (and) marks. These repetitions are for the purpose of simplification and clarity, and are not intended to limit the specific relationship between the different embodiments or (and) structures discussed.

[0053] In addition, spatially related terms such as "below," "below," "lower," "above," "higher," and similar terms are used to facilitate description of the relationship between one element or feature and another element or features in the figure. In addition to the orientation shown in the drawings, these spatially related terms are intended to include different orientations of the device in use or operation. The device may be turned to different orientations (rotated 90 degrees or other orientations), and the spatially related terms used herein may be interpreted in the same manner.

[0054] Figure 1 A schematic diagram of a communication system 100 according to an embodiment of the present invention is shown. Figure 1In the embodiment of the present invention, the communication system 100 includes a wearable device 110 and a contact lens element 190. For example, the wearable device 110 may be a head mounted communication device, and the contact lens element 190 may be a smart contact lens (SCL), which may have a communication function, but is not limited thereto. In detail, the wearable device 110 includes a transceiver circuit 120, a first metal structure 150, a second metal structure 160, and a reflector 170. It must be understood that although not shown in Figure 1 However, the wearable device 110 may further include other components, such as: a housing, a nonconductive carrier element, a speaker, or (and) a processor.

[0055] The transceiver circuit 120 includes a wireless communication circuit 130 and a wireless charging circuit 140. For example, the wireless communication circuit 130 may include a signal source and a signal processor (not shown), and the wireless charging circuit 140 may be further coupled to a battery module or an external AC power source (not shown), but is not limited thereto.

[0056] The first metal wire structure 150 may include a coil. The first metal structure 150 is coupled to the wireless communication circuit 130, wherein the first metal structure 150 can be used to communicate with the contact lens element 190. In some embodiments, the first metal structure 150 can also be coupled to a first matching circuit (Matching Circuit) (not shown) so as to adjust its corresponding impedance matching (Impedance Matching). For example, the first metal structure 150 can operate in a first frequency band (Frequency Band), wherein the aforementioned first frequency band can be between 10MHz and 100MHz. However, the present invention is not limited to this. In other embodiments, the wearable device 110 may further include multiple first metal structures 150, all of which can be coupled to the wireless communication circuit 130.

[0057] In other embodiments, the first metal structure 150 may also include one or more contact electrodes (Electrode Pads) for human body communication (HBC). In a human body communication system, the contact electrode is usually designed as a metal surface in contact with the skin in order to effectively transmit and receive communication signals mediated by the human body. In some embodiments, the contact electrodes of the first metal structure 150 can be used to transmit a human body communication signal through a human head to a human body communication transceiver module on a smart contact lens. The aforementioned contact electrodes can be implemented by materials with good conductivity and biocompatibility, such as: a metal (such as copper, silver), a carbon material, or a biocompatible coating, etc. The specific structure of the contact electrode may vary depending on various applications, including different shapes, different sizes, and different arrangements.

[0058] The second metal structure 160 is coupled to the wireless charging circuit 140, wherein the second metal structure 160 can be used to provide power to the contact lens element 190. Similarly, the second metal structure 160 may also include a coil or one or more contact electrodes. In some embodiments, the second metal structure 160 may also be coupled to a second matching circuit (not shown) so that its corresponding impedance matching can be adjusted. For example, the second metal structure 160 may operate in a second frequency band, wherein the aforementioned second frequency band may be between 1MHz and 15MHz. In addition, there may be an overlapping frequency band between the aforementioned first frequency band and the second frequency band, which helps to further enhance some of the efficacy of the aforementioned first frequency band. However, the present invention is not limited to this. In other embodiments, the wearable device 110 may further include multiple second metal structures 160, all of which can be coupled to the wireless charging circuit 140.

[0059] For example, the reflector 170 can be implemented by a ferrite sheet. The reflector 170 is adjacent to the first metal structure 150 and the second metal structure 160 to reflect the radiation energy from the first metal structure 150 and the second metal structure 160. Therefore, the overall transmission efficiency of the wearable device 110 can be greatly improved. It must be noted that the term "adjacent" or "adjacent" in this specification may refer to the corresponding two elements being less than a predetermined distance (for example, 10 mm or shorter), but generally does not include the situation where the corresponding two elements are in direct contact with each other (that is, the aforementioned distance is shortened to 0).

[0060] In some embodiments, the contact lens element 190 includes a transceiver module 192, a power module 194, and a display unit 196, but is not limited thereto. The transceiver module 192 is wirelessly connected to the first metal structure 150 of the wearable device 110, and can be used to receive data from the wireless communication circuit 130 of the wearable device 110. The power module 194 is wirelessly connected to the second metal structure 160 of the wearable device 110. For example, the power module 194 may include another coil (not shown), which can be used to receive power from the wireless charging circuit 140 of the wearable device 110. In addition, the display unit 196 is coupled to the transceiver module 192 and the power module 194, respectively, wherein the display unit 196 can be powered by the power module 194, and the display unit 196 can further display a corresponding screen according to the data received by the transceiver module 192.

[0061] Under the design of the present invention, the wearable device 110 of the communication system 100 can simultaneously execute a communication process and a charging process for its contact lens element 190. It must be understood that the contact lens element 190 must rely on stable power to provide good communication functions. Therefore, the wearable device 110 mentioned above prioritizes ensuring its power supply to effectively improve the overall communication quality of the communication system 100.

[0062] In some embodiments, if a specific distance DS between the first metal structure 150 or the second metal structure 160 and the contact lens element 190 is set to be between 5 cm and 30 cm, the overall communication quality of the communication system 100 can be further improved. In other embodiments, the wearable device 110 can also be used alone, and does not necessarily have to be integrated with the contact lens element 190. In other simpler embodiments, the wearable device 110 may not include the second metal structure 160, and the transceiver circuit 120 may not include the wireless power circuit 140, but it is not limited thereto.

[0063] The following embodiments will introduce various configurations and detailed structural features of the communication system 100. It should be understood that these drawings and descriptions are only for example and are not intended to limit the present invention.

[0064] Figure 2A A cross-sectional view of a communication system 200 according to an embodiment of the present invention is shown. Figure 2B A partial perspective view of a communication system 200 according to an embodiment of the present invention is shown. Figure 2A , 2B . Figure 2A , 2B and Figure 1 Similar. Figure 2A , 2BIn the embodiment of the present invention, the communication system 200 includes a wearable device 210 and a contact lens element 290, wherein the wearable device 210 includes a first metal structure 250, a second metal structure 260, a reflector 270, and a helmet body 280. It should be understood that in order to simplify the drawings, the aforementioned transceiver circuit is not shown in FIG. Figure 2A , 2B For example, the helmet body 280 may be made of a non-conductive material, and may be a full-face helmet (Full-Face Helmet) or a semi-cover type helmet (Semi-Cover Type Helmet). The reflector 270 may be roughly C-shaped, and may be attached to the inner edge of the helmet body 280. A gap (Gap) 285 may be formed between the reflector 270 or the helmet body 280 and a user's head HB. In addition, the first metal structure 250 and the second metal structure 260 may also be attached to other parts of the helmet body 280. Figure 2B As shown, the first metal structure 250 and the second metal structure 260 are respectively disposed on different planes, and according to actual measurement results, such a non-coplanar design helps to reduce the mutual interference between the first metal structure 250 and the second metal structure 260. Generally speaking, the wearable device 210 can communicate with the contact lens element 290 through the user's head HB and provide power to the contact lens element 290 at the same time, so that the wearable device 210 can be well integrated with the contact lens element 290. Figure 2A , 2B The remaining features of the communication system 200 are the same as Figure 1 The communication system 100 is similar to that of the present invention, so the two embodiments can achieve similar operating effects.

[0065] Figure 3 A schematic diagram showing a communication system 300 according to an embodiment of the present invention is shown. Figure 3 and Figure 1 Similar. Figure 3In the embodiment of the present invention, a wearable device 310 of the communication system 300 further includes a third metal structure 380 and a signal processing circuit (Signal Processing Circuit) 390. Similarly, the third metal structure 380 may also include a coil or one or more contact electrodes. The first metal structure 150 and the third metal structure 380 are both coupled to a wireless communication circuit 330 of a transceiver circuit 320 of the wearable device 310, wherein the first metal structure 150 and the third metal structure 380 can both be used to communicate with the contact lens element 190. As mentioned above, the first metal structure 250, the second metal structure 160, and the third metal structure 380 can be respectively arranged on different planes. In addition, the signal processing circuit 390 is respectively coupled to the wireless communication circuit 330 and the wireless charging circuit 140 of the transceiver circuit 320. In detail, the wireless communication circuit 330 can generate a first received signal strength indication (RSSI) SD1 for the first metal structure 150, and can generate a second received signal strength indication SD2 for the third metal structure 380. Then, the signal processing circuit 390 can perform a tracking procedure for the contact lens element 190 according to the first received signal strength indication SD1 and the second received signal strength indication SD2. The relevant information of each received signal strength indication can be transmitted between circuits in the form of a potential signal or a current signal. Because the contact lens element 190 is usually set on one eye of the user, the aforementioned positioning procedure will also have the function of eye positioning. In other embodiments, if the wireless communication circuit 330 is coupled to more metal structures at the same time, the accuracy of the aforementioned positioning procedure can be further improved. In some embodiments, the signal processing circuit 390 can also selectively use any one of the first metal structure 150 and the third metal structure 380 according to the first received signal strength indication SD1 and the second received signal strength indication SD2. For example, if the second RSSI SD2 is greater than the first RSSI SD1, the wireless communication circuit 330 can communicate with the contact lens element 190 only through the third metal structure 380, wherein the first metal structure 150 can be disabled and the third metal structure 380 can be enabled. Figure 3 The remaining features of the communication system 300 are the same as Figure 1 The communication system 100 is similar to that of the present invention, so the two embodiments can achieve similar operating effects.

[0066] Figure 4 A schematic diagram showing a communication system 400 according to an embodiment of the present invention is shown. Figure 4 and Figure 1Similar. Figure 4 In the embodiment of the present invention, a wearable device 410 of the communication system 400 further includes a third metal structure 480 and a signal processing circuit 490. The second metal structure 160 and the third metal structure 480 are both coupled to a wireless charging circuit 440 of a transceiver circuit 420 of the wearable device 410, wherein the second metal structure 160 and the third metal structure 480 can be used to provide power to the contact lens element 190. In addition, the signal processing circuit 490 is respectively coupled to the wireless communication circuit 130 and the wireless charging circuit 440 of the transceiver circuit 420. In detail, the wireless charging circuit 440 can generate a first power supply efficiency SE1 for the second metal structure 160, and can generate a second power supply efficiency SE2 for the third metal structure 480. Then, the signal processing circuit 490 can perform a positioning procedure for the contact lens element 190 according to the first power supply efficiency SE1 and the second power supply efficiency SE2. The information related to each of the power supply efficiencies mentioned above can be transmitted between circuits in the form of a potential signal or a current signal. In other embodiments, if the wireless charging circuit 440 is coupled to more metal structures at the same time, the accuracy of the aforementioned positioning procedure can be further improved. In some embodiments, the signal processing circuit 490 can also selectively use any one of the second metal structure 160 and the third metal structure 480 according to the first power supply efficiency SE1 and the second power supply efficiency SE2. For example, if the first power supply efficiency SE1 is higher than the second power supply efficiency SE2, the wireless charging circuit 440 can only provide power to the contact lens element 190 through the second metal structure 160, wherein the second metal structure 160 can be enabled and the third metal structure 480 can be disabled. Figure 4 The remaining features of the communication system 400 are the same as Figure 1 The communication system 100 is similar to that of the present invention, so the two embodiments can achieve similar operating effects.

[0067] Figure 5 A flow chart showing a communication method according to an embodiment of the present invention is shown. First, in step S510, a wearable device is provided, wherein the wearable device includes a transceiver circuit, a first metal structure, a second metal structure, and a reflector. The transceiver circuit includes a wireless communication circuit and a wireless charging circuit. The first metal structure is coupled to the wireless communication circuit. The second metal structure is coupled to the wireless charging circuit. The reflector is adjacent to the first metal structure and the second metal structure. In step S520, communication is performed with a contact lens element through the first metal structure. In step S530, power is provided to the contact lens element through the second metal structure. Finally, in step S540, radiation energy from the first metal structure and the second metal structure is reflected through the reflector. It must be understood that the above steps do not need to be performed in sequence, but Figure 1-4 Each feature of the embodiment of the present invention can be applied to Figure 5 of communication methods.

[0068] The present invention provides a novel communication system, a wearable device, and a communication method thereof. Compared with the conventional design, the present invention has at least the advantages of improving the overall communication quality and the compatibility between devices, so it is very suitable for application in various devices.

[0069] It is worth noting that the above-mentioned component parameters are not limiting conditions of the present invention. Designers can adjust these setting values ​​according to different needs. The communication system, wearable device, and communication method of the present invention are not limited to Figure 1-5 The present invention may only include Figure 1-5 In other words, not all the features shown in the figures need to be implemented in the communication system, wearable device, and communication method of the present invention at the same time.

[0070] The method of the present invention, or a specific form or part thereof, may exist in the form of program code. The program code may be contained in a physical medium, such as a floppy disk, an optical disk, a hard disk, or any other machine-readable (such as computer-readable) storage medium, or a computer program product that is not limited to an external form, wherein when the program code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The program code may also be transmitted through some transmission medium, such as wires or cables, optical fibers, or any transmission mode, wherein when the program code is received, loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. When implemented on a general-purpose processing unit, the program code combines with the processing unit to provide a unique device that operates similarly to application-specific logic circuits.

[0071] In the present specification and claims, ordinal numbers, such as "first", "second", "third", etc., have no sequential relationship with each other, and are only used to distinguish two different components with the same name.

[0072] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Anyone skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined by the appended claims.

Claims

1. A communication system, comprising: A contact lens element having a communication function; as well as A wearable device comprising: a transceiver circuit, including a wireless communication circuit and a wireless charging circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; a second metal structure coupled to the wireless charging circuit, wherein the second metal structure is used to provide power to the contact lens element; and A reflector is adjacent to the first metal structure and the second metal structure to reflect radiation energy from the first metal structure and the second metal structure.

2. The communication system of claim 1, wherein the contact lens element comprises: a transceiver module wirelessly connected to the first metal structure; a power supply module wirelessly connected to the second metal structure; as well as A display unit is coupled to the transceiver module and the power supply module.

3. The communication system as claimed in claim 1, wherein the wearable device is a head-mounted communication device. 4 . The communication system as claimed in claim 1 , wherein the first metal structure operates in a first frequency band, and the first frequency band is between 10 MHz and 100 MHz. 5 . The communication system as claimed in claim 1 , wherein the second metal structure operates in a second frequency band, and the second frequency band is between 1 MHz and 15 MHz. 6 . The communication system as claimed in claim 1 , wherein the first metal structure and the second metal structure are respectively disposed on different planes.

7. The communication system as claimed in claim 1, wherein the reflector is implemented by a ferrite sheet.

8. The communication system as claimed in claim 1, wherein the wearable device further comprises: A signal processing circuit is coupled to the transceiver circuit.

9. The communication system as claimed in claim 8, wherein the wearable device further comprises: A third metal structure is coupled to the wireless communication circuit, wherein the third metal structure is used to communicate with the contact lens element.

10. The communication system of claim 9, wherein the wireless communication circuit generates a first received signal strength indication regarding the first metal structure and generates a second received signal strength indication regarding the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element according to the first received signal strength indication and the second received signal strength indication.

11. The communication system as claimed in claim 8, wherein the wearable device further comprises: A third metal structure is coupled to the wireless charging circuit, wherein the third metal structure is used to provide the power to the contact lens element.

12. The communication system as claimed in claim 11, wherein the wireless charging circuit generates a first power supply efficiency with respect to the second metal structure and generates a second power supply efficiency with respect to the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element according to the first power supply efficiency and the second power supply efficiency. 13 . The communication system as claimed in claim 11 , wherein each of the first metal structure, the second metal structure, and the third metal structure comprises a coil or one or more contact electrodes.

14. A communication system comprising: A contact lens element having a communication function; as well as A wearable device comprising: a transceiver circuit, including a wireless communication circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; and A reflector is adjacent to the first metal structure to reflect radiation energy from the first metal structure.

15. A wearable device that interacts with a contact lens element, comprising: a transceiver circuit, including a wireless communication circuit and a wireless charging circuit; a first metal structure coupled to the wireless communication circuit, wherein the first metal structure is used to communicate with the contact lens element; a second metal structure coupled to the wireless charging circuit, wherein the second metal structure is used to provide power to the contact lens element; as well as A reflector is adjacent to the first metal structure and the second metal structure to reflect radiation energy from the first metal structure and the second metal structure. 16 . The wearable device as claimed in claim 15 , wherein the first metal structure and the second metal structure are respectively disposed on different planes.

17. The wearable device of claim 15, further comprising: A signal processing circuit is coupled to the transceiver circuit.

18. The wearable device of claim 17, further comprising: A third metal structure is coupled to the wireless communication circuit, wherein the third metal structure is used to communicate with the contact lens element.

19. A wearable device as described in claim 18, wherein the wireless communication circuit generates a first received signal strength indication regarding the first metal structure and generates a second received signal strength indication regarding the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element based on the first received signal strength indication and the second received signal strength indication.

20. The wearable device of claim 17, further comprising: A third metal structure is coupled to the wireless charging circuit, wherein the third metal structure is used to provide the power to the contact lens element.

21. The wearable device as claimed in claim 20, wherein the wireless charging circuit generates a first power supply efficiency with respect to the second metal structure and generates a second power supply efficiency with respect to the third metal structure, and the signal processing circuit performs a positioning procedure for the contact lens element according to the first power supply efficiency and the second power supply efficiency.

22. The wearable device as claimed in claim 20, wherein each of the first metal structure, the second metal structure, and the third metal structure comprises a coil or one or more contact electrodes.

23. A communication method, comprising: A wearable device is provided, wherein the wearable device includes a transceiver circuit, a first metal structure, a second metal structure, and a reflector, the transceiver circuit includes a wireless communication circuit and a wireless charging circuit, the first metal structure is coupled to the wireless communication circuit, the second metal structure is coupled to the wireless charging circuit, and the reflector is adjacent to the first metal structure and the second metal structure; communicating with a contact lens element through the first metal structure; Providing power to the contact lens element through the second metal structure; as well as The reflector reflects radiation energy from the first metal structure and the second metal structure.

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