Watchband with fit detection

Abstract

The present disclosure relates to watch bands with fit detection, specifically, characteristics of a watch band can change when placed in different configurations, and each of these characteristics can be related to each of the various configurations. These characteristics can be measured to detect which of the various configurations the watch band is in. For example, the watch band can include an adjustable capacitor that changes its capacitance when the watch band changes its configuration. For example, the capacitance can change based on stretching of the watch band, bending of the watch band, and / or tightening and releasing of a joining element. The watch or another device can perform one or more operations based on the detected characteristics and configuration of the watch band.

Description

Technical Field

[0001] This manual relates in general to watch straps, and more specifically to watch straps that detect the user's wrist and / or its characteristics. Background Technology

[0002] Some electronic devices can be removably attached to a user. For example, a wristwatch or fitness / health tracker can be attached to a user's wrist by connecting the free ends of the strap together.

[0003] Proximity sensors are able to detect the presence of a target without physical contact. They typically emit electromagnetic radiation, measure the returned signal, and identify the target's location based on the spectrum of the returned signal. Proximity sensors are commonly used in mobile devices such as smartphones to detect accidental touchscreen taps when these devices are held to the ear during a call. Portable devices such as wristwatches may also include proximity sensors that detect whether the watch has "fallen off the wrist" and whether it should transition to a locked state. However, for users who prefer to wear their watches loosely on their wrists, such proximity sensors can lead to accidental locking of the watch or other undesirable consequences.

[0004] Therefore, it may be beneficial to develop alternative methods or devices to more accurately determine the configuration and / or location of wearable devices relative to the user. Summary of the Invention

[0005] The watch according to this disclosure includes: a watch body including a detector; and a watch strap configured to be coupled to the watch body, the watch strap including: a substrate of elastic material; and a plurality of conductive plates positioned to move relative to each other when the substrate is stretched, wherein the detector of the watch body is configured to: measure the capacitance between the plurality of conductive plates; and perform an operation based on the capacitance. Attached Figure Description

[0006] Some features of this subject matter are shown in the appended claims. However, for illustrative purposes, several embodiments of this subject matter are illustrated in the following figures.

[0007] Figure 1 A perspective view of a watch according to some embodiments of the present disclosure is shown.

[0008] Figure 2 A perspective view of a watch on a user's wrist according to some embodiments of this disclosure is shown.

[0009] Figure 3 A simplified block diagram of a watch according to some embodiments of the present disclosure is shown.

[0010] Figure 4 A side view of a watch in a relaxed configuration according to some embodiments of the present disclosure is shown.

[0011] Figure 5 This illustration shows a fastening configuration on the user's wrist according to some embodiments of the present disclosure. Figure 4 A side view of the watch.

[0012] Figure 6 A schematic side view of a portion of a watchband with a detector in a relaxed configuration, according to some embodiments of the present disclosure, is shown.

[0013] Figure 7 The following are shown in a stretched configuration according to some embodiments of the present disclosure. Figure 6 A schematic side view of a portion of the watch strap.

[0014] Figure 8 A schematic front view of a portion of a watchband in a relaxed configuration and having a detector, according to some embodiments of the present disclosure, is shown.

[0015] Figure 9 The following are shown in a stretched configuration according to some embodiments of the present disclosure. Figure 8 A schematic front view of a portion of the watch strap.

[0016] Figure 10 A side view of a detector for a watchband according to some embodiments of the present disclosure is shown.

[0017] Figure 11 A side view of a detector for a watchband according to some embodiments of the present disclosure is shown.

[0018] Figure 12 A side view of a watch with adjustable fit force according to some embodiments of the present disclosure is shown.

[0019] Figure 13 A side view of a watch with adjustable fit force according to some embodiments of the present disclosure is shown.

[0020] Figure 14 A side view of a watch with adjustable fit force according to some embodiments of the present disclosure is shown.

[0021] Figure 15 A flowchart illustrating the operation of a watch according to some embodiments of this disclosure is shown.

[0022] Figure 16 A flowchart illustrating the operation of a watch according to some embodiments of this disclosure is shown. Detailed Implementation

[0023] The specific embodiments shown below are intended to describe various configurations of the subject matter and are not intended to represent the only configuration in which the subject matter can be practiced. The accompanying drawings are incorporated herein and form part of the detailed description. The detailed description includes specific details intended to provide a thorough understanding of the subject matter. However, it will be clear and apparent to those skilled in the art that the subject matter is not limited to the specific details shown herein and can be practiced without such specific details. In some cases, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the subject matter.

[0024] The embodiments described herein relate to systems and methods for detecting the configuration and / or position of a wearable device relative to a user. It should be understood that the various embodiments described herein, as well as their functions, operations, components, and capabilities, can be combined with other elements, embodiments, structures, etc., and therefore any physical, functional, or operational discussion of any element or feature is not intended to limit it to a particular embodiment while excluding other embodiments.

[0025] As mentioned above, many portable electronic devices can be removably attached to a user. Wearable devices can be any electronic device suitable for contact with a user's skin, such as a telephone, watch, armband or wristband, headband, or any device in which detecting orientation relative to a surface may be useful. By using a flexible strap that can adjustably fit the user, wearable devices can be worn on the wrist, ankle, head, chest, legs, etc. For example, the strap may be made of a flexible material or have a structure that allows it to have an adjustable circumference. In some examples, wearable devices are watches, smartwatches, wristwatches, timing devices, or other wrist-worn devices.

[0026] In some examples, a smartwatch or fitness device can be attached to a user's wrist by wearing the watch with a strap and / or by connecting the free ends of a traditional watch strap together. In other examples, a buckle or elastic band may optionally be used to secure the watch. In yet another example, a portable audio player can be secured to a user's arm by inserting the player into an armband shell. In yet another example, a heart rate sensor can be attached to a user's chest via a strap.

[0027] While many embodiments are described herein with reference to attachment of a wrist-worn electronic device to a user's wristband, it will be understood that other form factors may be advantageous in other embodiments. In other words, the methods, systems, and techniques described herein illustratively with reference to wrist-worn devices can be equally applied to non-wrist-worn devices. For example, in other embodiments, the device may be configured to attach to other limbs or body parts (e.g., necklaces, armbands, belts, ear hooks, rings, anklets, toe rings, bandanas, headbands, etc.). Furthermore, other embodiments described herein can be used to detect the configuration and / or position of an electronic device relative to a non-user object such as a charging dock or charging station.

[0028] As mentioned above, some watches or other wearable devices have the ability to detect the presence of the user or other object to which they are attached. For example, proximity sensors can detect the presence of a target without physical contact. Portable devices such as wristwatches can use this detection to determine whether the watch has "detached from the wrist" and whether it should transition to a locked state or provide other functions. However, for users who prefer to wear their watches loosely on their wrists, such proximity sensors may lead to accidental locking of the watch or other undesirable consequences.

[0029] Therefore, many of the embodiments described herein relate to systems and methods for detecting the configuration and / or position of a watch and / or watch strap relative to a user or other object. Such detection can be based on changes in the watch strap. For example, the watch strap may have different lengths, tensions, curvatures, fastening configurations, or other characteristics when it is on the user's wrist (i.e., "on the wrist" or "in a configuration on the wrist") and when it is detached from the user's wrist (i.e., "detached from the wrist" or "in a configuration detached from the wrist").

[0030] The characteristics of a watch strap can change when it is positioned in different configurations, and each of these characteristics can be associated with each of the various configurations. These characteristics can be measured to determine which configuration the watch strap is in. For example, the watch strap may include a capacitor whose capacitance changes when the watch strap changes its configuration. For example, the capacitance may change based on the stretching of the watch strap, the bending of the watch strap, etc.

[0031] The watch or other device may perform one or more operations based on the detected characteristics and configuration of the watch strap. For example, the watch may respond to detection by allowing or restricting access to one or more features of the watch. As another example, the watch may use detection to further detect the user's wrist size. As another example, the watch may use detection to further detect the user's movement, activity, and / or gestures. As another example, the watch may use detection to further detect the user's health measurements, such as blood pressure.

[0032] As another example, some embodiments described herein take the form of a method for adjusting the fit of a wearable electronic device secured to a user by a watchband. Features of the watchband can provide the ability to automatically adjust the tightness of the watchband without active user input. For example, a tensioning element may be configured to change the fit of the watchband in response to heat dissipated by the user wearing the watchband.

[0033] By way of another example, a watch can generate a signal with instructions to adjust the fit of the strap, select the operating mode of the tensioner coupled to the electronic device (e.g., tightened mode, loose mode, flexible mode, rigid mode, etc.), and actuate the tensioning element based on the instructions.

[0034] The following is for reference Figures 1 to 16 These embodiments and other embodiments will be discussed herein. However, those skilled in the art will readily understand that the detailed descriptions given herein with respect to the accompanying drawings are for illustrative purposes only and should not be construed as limiting.

[0035] refer to Figure 1 and Figure 2 The watch can be set to a relaxed, off-wrist configuration. Figure 1 Or by attaching the watch to the user's wrist, setting it to a wrist-mounted configuration. Figure 2 ).

[0036] Figure 1 A perspective view of a watch in a relaxed, wrist-detached configuration is shown. In the illustrated embodiment, watch 100 is implemented as a portable electronic device wearable on the wrist. Other embodiments may implement the watch in different ways. For example, the watch may be a smartphone, gaming device, digital music player, sports accessory device, medical device, navigation assistant, accessibility device, device providing time and / or weather information, health assistant, and other types of electronic devices suitable for attachment to a user.

[0037] The watch body 104 of the watch 100 may include a case 108 and a display 106. The case 108 may form an outer surface or part of an outer surface for one or more internal components of the watch 100 and a protective case. In the illustrated embodiment, the case 108 is formed in a substantially rectangular shape, although this configuration is not required in other embodiments and other shapes may exist.

[0038] In some examples, display 106 may be combined with an input device configured to receive user input. Display 106 may be implemented using any suitable technology, including but not limited to multi-touch sensing touchscreens using liquid crystal display (LCD) technology, light-emitting diode (LED) technology, organic light-emitting display (OLED) technology, organic electroluminescent (OEL) technology, or another type of display technology. In many embodiments, display 106 may be disposed beneath a protective cover glass formed of a rigid and scratch-resistant material such as ion-implanted glass, laminated glass, or sapphire.

[0039] As described above, the display 106 may be integrated with or positioned close to an input sensor. For example, in some embodiments, the display 106 may also include one or more contact sensors to determine the location of one or more contact positions on the top surface of the display 106. In some embodiments, the display 106 may also include one or more force-sensitive elements (not shown) to detect the magnitude of a force applied to the top surface of the display 106.

[0040] The watch 100 may include, within housing 108: a processor, memory, power supply and / or battery, network communication, sensors, a display screen, acoustic components, input / output ports, haptic components, digital and / or analog circuitry for performing and / or coordinating tasks of the watch 100, etc. In some examples, the watch 100 may communicate with independent electronic devices via one or more proprietary and / or standardized wired and / or wireless interfaces. For simplicity of illustration, Figure 1 The watch 100 is shown without many of these components, each of which may be partially, optionally or completely included within the housing 108.

[0041] Figure 2 A perspective view of a watch 100 configured on the wrist, attached to a user 102 via a strap 150. The watch body 104 of the watch 100 is coupled to the user 102 via the strap 150 that surrounds the user's wrist. The strap 150 may be formed of a compliant material or a compliant structure configured to easily conform to the user's wrist while maintaining sufficient stiffness to maintain the watch's positioning and orientation on the user's wrist. The material selected for the strap 150 may vary depending on the embodiment. For example, in some cases, the strap 150 may be formed of metal, such as a strap formed as a metal mesh. In other embodiments, the strap 150 may be formed of an organic material such as leather. In other examples, the strap 150 may be formed of an inorganic material such as nylon. In still other embodiments, materials such as plastics, rubber or other fibers, organic materials, polymeric materials, or synthetic materials may be used.

[0042] In some examples, the watch strap 150 can be removably coupled to the housing 108. For example, in some embodiments, the watch strap 150 may at least partially surround a watch pin configured to insert into a protrusion extending from the body of the housing 108. In other examples, the watch strap 150 may be configured to slide within and be held by two or more channels within the outer sidewall of the housing 108. In other examples, the watch strap 150 may surround a hole passing through the housing 108. In other cases, the watch strap 150 may be riveted, threaded, or otherwise attached to the housing 108 via one or more mechanical fasteners. In still other embodiments, additional removable couplings between the watch strap 150 and the housing 108 are possible.

[0043] In other examples, the watch strap 150 may be permanently coupled to the housing 108. For example, in some cases, the watch strap 150 may be formed as an integral part of the housing 108. In other cases, the watch strap 150 may be rigidly adhered to the housing 108 via an adhesive. In still other embodiments, the watch strap 150 may be fused, welded, or chemically bonded to the housing 108. In other embodiments, additional permanent couplings between the watch strap 150 and the housing 108 are possible.

[0044] As described above, the case 108 of the watch body 104 can be rigid and can be configured to provide structural support and shock resistance for electronic or mechanical components contained within the case. Not all embodiments require a rigid case, and in some examples, the watch 100 may have a case that can be flexible. Furthermore, although a rectangular shape is typically used to form the watch case, this is not mandatory, and other shapes are possible. For example, some cases may take a circular shape.

[0045] In other embodiments, watch 100 may include one or more sensors (not shown) positioned on the bottom surface of housing 108. The sensors used by watch 100 may vary depending on the embodiment. Suitable sensors may include temperature sensors, conductance of skin sensors, blood pressure sensors, heart rate sensors, respiratory rate sensors, oxygen saturation sensors, volumetric scanning sensors, activity sensors, pedometers, blood glucose sensors, weight sensors, body fat sensors, blood alcohol sensors, diet sensors, etc.

[0046] In many cases, sensors such as biometric sensors can collect certain health-related information in a non-invasive manner. For example, watch 100 may include a sensor configured to measure changes (or the amount of light) reflected from a measurement site (e.g., the wrist) of user 102. In one embodiment, a biometric sensor such as a PPG sensor may include a light source for emitting light onto or within the wrist of user 102 and an optical sensor for detecting light leaving the wrist of user 102. Depending on various physiological parameters or characteristics of user 102, light from the light source may be scattered, absorbed, and / or reflected throughout the measurement view. For example, depending on various physiological characteristics of the surface and subcutaneous tissue of the user's wrist, the tissue of user 102's wrist can scatter, absorb, or reflect light emitted by the light source in different ways.

[0047] In many cases, PPG sensors can be used to detect a user's heart rate and blood oxygenation. For example, during each full heartbeat, a user's subcutaneous tissue can expand and contract, alternately increasing and decreasing the light absorption capacity of the measurement site. In these embodiments, the optical sensor of the PPG can collect light leaving the measurement site and generate an electrical signal corresponding to the collected light. These electrical signals can then be transmitted as raw data to a watch 100, which can then process the raw data into health data. The raw data may be based on information about the collected light, such as the chromaticity and / or brightness of the light. In some cases, the health data may be displayed on a display 106 as a biometric feedback to the user 102.

[0048] Depending on the configuration, position, and / or orientation of watch 100 relative to user 102 (as detected by any of the methods described herein), watch 100 may perform or prevent one or more operations. For example, if the detected characteristics of the strap 150 are in a “wrist-off” configuration (such as...), watch 100 may perform or prevent one or more operations. Figure 1 As shown), the watch 100 can transition to a locked (i.e., password required to access information on the device) or low-power state. By another example, if the detected characteristics of the strap 150 correspond to the watch 100 being in a "on the wrist" configuration (such as...), the watch 100 can transition to a locked (i.e., password required to access information on the device) or low-power state. Figure 2 Corresponding to (as shown), the watch 100 can transition to an unlocked state (i.e., access to information on the device is possible without a password, or a password is required only once when held on the wrist). Additionally or alternatively, other operations can be performed based on the detected characteristics, as discussed further herein. In some variations, the capacitive characteristics of the watch strap can be used to detect whether the watch 100 is "on the wrist" or "off the wrist," as discussed further herein. A corresponding indication can be output to the user, for example, via the display 106.

[0049] Figure 3A simplified block diagram of a watch 100 configured to perform the operations described herein is shown. The watch 100 may include one or more processing devices 206, memory 208, one or more input / output (I / O) devices or sensors 210 (e.g., biometric sensors, environmental sensors, etc.), one or more displays 212, one or more power supplies (not shown), one or more physical and / or rotary input devices 214, one or more touch and / or force input devices 216, one or more acoustic input and / or output devices 218, one or more haptic output devices 220, one or more network communication interfaces 222, and one or more detectors 224. Some embodiments may also include additional components. One or more of these components may be disposed on the watch body and / or strap. Suitable communication connections may be provided between components, including those separated by the interface between the watch body and / or strap of the watch 100.

[0050] Display 212 may provide image or video output to watch 100. Display 212 may also provide an input surface for one or more input devices, such as touch sensing device 216, force sensing device, temperature sensing device, and / or fingerprint sensor. Display 212 may be of any size suitable for inclusion at least partially within the case of watch 100 and may be positioned substantially anywhere on watch 100. In some embodiments, display 212 may be protected by a cover glass formed of a scratch-resistant material (e.g., sapphire, zirconium oxide, glass, etc.) that forms a substantially continuous outer surface with the case of watch 100.

[0051] Processing device 206 can control or coordinate some or all of the operations of watch 100. Processing device 206 can communicate directly or indirectly with substantially all components of watch 100. For example, system bus or signal lines or other communication mechanisms can provide communication between processing device 206, memory 208, sensor 210, power supply, network communication interface 222 and / or haptic output device 220.

[0052] One or more processing devices 206 may be implemented as any electronic device capable of processing, receiving, or transmitting data or instructions. For example, processing devices 206 may each be a microprocessor, a central processing unit (CPU), an application-specific integrated circuit (ASIC), a digital signal processor (DSP), or a combination of such devices. As described herein, the term "processing device" is intended to cover one or more computing elements, such as a single processor or processing unit, multiple processors, multiple processing units, or other suitable configurations.

[0053] The memory 208 can store electronic data that can be used by the watch 100. For example, the memory can store electronic data or content such as audio and video files, documents and applications, device settings and user preferences, timing and control signals or data for the haptic output device 220, data structures or databases, etc. The memory 208 can be configured as any type of memory. By way of example only, the memory can be implemented as random access memory, read-only memory, flash memory, removable memory, other types of storage elements, or combinations of such devices.

[0054] Sensor 210 can transmit data to a user or another electronic device, and / or receive data from a user or another electronic device. Sensor 210 may include a touch-sensing input surface (such as one or more buttons, one or more microphones or speakers), and / or one or more ports (such as microphone ports).

[0055] The watch 100 may also include one or more sensors 210 positioned substantially anywhere on the watch 100. The one or more sensors 210 may be configured to sense substantially any type of characteristic, such as, but not limited to, images, pressure, light, touch, force, temperature, positioning, motion, etc. For example, the sensor 210 may be an image sensor, a temperature sensor, a light or optical sensor, an atmospheric pressure sensor, a humidity sensor, a magnet, a gyroscope, an accelerometer, etc. In other examples, the watch 100 may include one or more health sensors. In some examples, the health sensors may be disposed on the bottom surface of the watch 100's case.

[0056] The power source can be any device capable of supplying power to the watch 100. For example, the power source could be one or more batteries or rechargeable batteries, or it could be a connection cable that connects the remote control device to another power source such as a wall power outlet. In other examples, wireless power could be used.

[0057] Network communication interface 222 facilitates data transmission to or from other electronic devices via standardized or proprietary protocols. For example, the network communication interface can transmit electronic signals via wireless and / or wired network connections. Examples of wireless and wired network connections include, but are not limited to, cellular networks, Wi-Fi, Bluetooth, infrared, and Ethernet.

[0058] The haptic output device 220 can be implemented as any suitable device configured to provide force feedback, vibration feedback, tactile sensation, etc. For example, in one embodiment, the haptic output device 220 can be implemented as a linear actuator configured to provide intermittent haptic feedback, such as tapping or knocking.

[0059] As described above, watch 100 may include detector 250. In some embodiments, the detector may be analog, digital, or an integrated circuit, configured to measure, monitor, probe, or otherwise interact with at least a portion of the watch band to determine characteristics of the watch band. Detector 250 may be or include a capacitance sensing device, and the detected characteristic may be the capacitance of at least a portion of the watch band. Detector 250 may communicate with processor 206 and / or other components and / or devices to perform operations based on characteristics (e.g., capacitance) detected by detector 250. Such operations may include providing output to a user, performing calculations, communicating with other devices, and / or performing additional detections.

[0060] It should be understood that in some embodiments, watch 100 may dynamically adjust the size of the watch strap and / or the fit of the watch. For example, as described above, tensioner 400 may be included within or coupled to watch 100. In some examples, tensioner 400 may be included within the case. In other examples, tensioner 400 may be included within the watch strap. In still other examples, a portion of tensioner 400 may be included within the case, and a portion of tensioner 400 may be included within the watch strap. In some examples, tensioner 400 may be coupled to both the watch strap and the case. For example, tensioner 400 may take the form of a coupling and / or a protrusion to couple the watch strap to the case.

[0061] This document uses the term "tensioner" and related phrases and technical terms to refer generally to a structural component of a watch strap that alters at least one characteristic to adjust the fit of the strap to the user's wrist or other body part. For example, circuitry, devices, controllers, or program code executed by a processor can apply stimuli (e.g., signals, commands, heat, mechanical energy, etc.) to the tensioner 400 or other parts of the watch strap to achieve the alteration in the strap.

[0062] Now for reference Figure 4 and Figure 5 A watch can be configured to switch between different configurations, such as a configuration on the wrist and a configuration off the wrist. Changes in configuration will have a corresponding and detectable effect on one or more characteristics of the watch strap.

[0063] Figure 4 A side view of the watch in a relaxed, wrist-detached configuration is shown. (As shown) Figure 4 As shown, the watch strap 150 may include a first strap portion 152 and a second strap portion 154. The first strap portion 152 may include a first engagement element 162, and the second strap portion 154 may include a second engagement element 164.

[0064] When the strap 150 is in a relaxed, wrist-detached configuration, the first strap portion 152 and the second strap portion 154 may extend away from each other and / or away from the watch case 104. This configuration may allow the strap 150 to extend to a preferred position and / or orientation in the absence of external force. Additionally or alternatively, this configuration may be the configuration that the strap 150 presents when the watch 100 is placed on a flat surface.

[0065] like Figure 5 As shown, the watch strap 150 may be formed of a flexible material or a flexible structure configured to easily conform to the wrist of the user 102.

[0066] The strap 150 is shown as overlapping components to form a closed loop around the wrist of the user 102. In these examples, the first strap portion 152 and the second strap portion 154 may be attached together. For example, a first engaging element 162 may engage a second engaging element 164 to secure the first strap portion 152 and the second strap portion 154 relative to each other. The first engaging element 162 and the second engaging element 164 may engage each other in one or more configurations to provide different levels of fit or tightness on the wrist of the user 102. For example, the first engaging element 162 may include a post or other protruding member extending away from a portion of the first strap portion 152. The second engaging element 164 may be or include one or more openings extending through at least a portion of the second strap portion 154. By another example, the first engaging element 162 and the second engaging element 164 may form a clasp. By another example, the first engagement element 162 and the second engagement element 164 may include locks, latches, latches, screws, buckles, threaded fasteners, magnets, pins, interference fits (e.g., friction fits), knurling, bayonet fasteners, hook and loop fasteners, and / or combinations thereof.

[0067] Although the strap 150 is shown as having overlapping parts, the strap 150 may alternatively be formed as a single continuous structure extending from opposite ends of the watch body 104. The strap 150 can be unfolded to wear the watch 100 or remove the watch from the wrist of the user 102, and provides sufficient tightness on the wrist of the user 102 to maintain the desired positioning and orientation.

[0068] When switching between a relaxed, wrist-detached configuration and a tightened, wrist-on configuration, the watch strap can detectably alter at least one characteristic (e.g., capacitance). Such detection can be made as a result of changes in the strap's length, engagement state, and / or curvature.

[0069] In a relaxed, detached wrist configuration, such as Figure 4As shown, the strap 150 may have a first length, for example, in this configuration the strap is not stretched along the longitudinal axis (e.g., allowing it to contract longitudinally toward the case 104). In a fastened configuration on the wrist, as... Figure 5 As shown, the watch strap 150 may have a second length that is different from the first length (e.g., longer), for example, in this configuration the strap is stretched along a longitudinal axis (e.g., longitudinally away from the watch body 104). The stretching of the watch strap 150 along its length may change at least one characteristic (e.g., capacitance) of at least a portion of the watch strap 150 in a manner that can be detected by the capacitance sensor 300 of the watch strap 150.

[0070] Now for reference Figures 6 to 9 When the watch band changes its configuration, the watch band can facilitate a change in at least one characteristic (e.g., capacitance) of at least a portion of the watch band. The watch band 150 may include a substrate 170 and a capacitance sensor 300. The capacitance sensor 300 may be coupled to the substrate 170, for example, by being mounted on and / or embedded within the substrate. The capacitance sensor 300 may include a plurality of plates 302 and / or electrodes, each independently coupled to the substrate 170, to be movable, spaced apart, or otherwise adjustable relative to each other in response to changes in the substrate 170.

[0071] In some embodiments, the substrate 170 may be formed at least partially of an elastic material such as a polymer, elastomer, fluorinated elastomer polymer, FKM, or other polymers (such as those with a Shore hardness gauge, selected to have flexibility suitable for easily conforming to the user's wrist) while maintaining sufficient stiffness to support the watch 100 when attached to the user's wrist. For example, the strap in some embodiments may have a Shore A hardness gauge range of 60 to 80 and / or a tensile strength greater than 12 MPa. Some embodiments described herein include a configuration in which the strap 150 is formed at least partially of a non-compliant material into a compliant structure. For example, a metal mesh may be used to form at least a portion of the strap 150. In some embodiments, the strap may be formed at least partially by connecting a plurality of metal connectors. In some embodiments, the strap may be formed at least partially by connecting a plurality of glass or crystal connectors. In some embodiments, the strap 150 may be formed of a combination of compliant and non-compliant materials.

[0072] The capacitive sensor 300 may include two or more plates 302, electrodes, or other structures formed of metal or other conductive material deposited on and / or in a substrate 170. As used herein, a “plate” or “electrode” may include one or more conductive structures of a variety of shapes and / or spanning any given area. Plates 302 may include copper, steel, aluminum, and / or another conductive metal or metal alloy. Although plates 302 are shown as being spaced apart by a substrate 170, it should be understood that a substrate 170 or another core forming a dielectric or electrically insulating material may be provided between plates 302.

[0073] like Figure 6 As shown, in the first configuration, the watchband 150 can provide a substrate 170 in a state corresponding to a relatively relaxed, compressed, or unbent state. For example, the first configuration may correspond to a wrist-detached configuration or a configuration on the wrist in a relatively relaxed (e.g., low tension or slack) state. In the first configuration, the plates 302 of the capacitance sensor 300 may be relatively further apart than in other configurations, as indicated by the gap distance 340 between the plates 302. When in the first configuration, a first capacitance between the plates 302 can be provided and detected. Therefore, the measured capacitance between the plates 302 can indicate to the detector that the watchband 150 is in the first configuration.

[0074] like Figure 7 As shown, in the second configuration, the strap 150 can provide a substrate 170 in a state corresponding to the strap 150 in a relatively stretched, bent state. For example, the second configuration may correspond to a configuration on the wrist in a relatively stretched (e.g., high tension or tight) state. Such a change can be produced by user movement, wrist swelling, watch displacement, and / or tensioner operation. In the second configuration, the plates 302 of the capacitance sensor 300 may be relatively closer to each other than in other configurations, as shown by the gap distance 340 between the plates 302. When in the second configuration, a second capacitance between the plates 302 can be provided and detected. Therefore, the measured capacitance between the plates 302 can indicate to the detector that the strap 150 is in the second configuration.

[0075] like Figure 6 and Figure 7 As shown, the capacitance (e.g., based on the gap distance 340) may be negatively correlated with the tension and / or tightness of the strap 150. For example, using Figure 6 and Figure 7 The arrangement shown allows for a corresponding narrowing of the width of the watchband 150 when stretched along its longitudinal axis, thereby causing the plates 302 to move toward each other and reduce the gap distance 340. Therefore, the tension in the watchband 150 can be related to the capacitance of the capacitance sensor 300 and the gap distance 340, as follows:

[0076]

[0077] Where T is the tension in the watch strap 150, F is the force on the user's wrist, D is the gap distance 340, and C is the capacitance of the capacitive sensor 300.

[0078] In other arrangements, the capacitance may be positively correlated with the tension and / or tightness of the strap 150. For example... Figure 8 As shown, in the first configuration, the watchband 150 can provide a substrate 170 in a state corresponding to a relatively relaxed, compressed, or unbent state. In the first configuration, the plates 302 of the capacitance sensor 300 can be relatively closer to each other than in other configurations, as indicated by the gap distance 340 between the plates 302. When in the first configuration, a first capacitance between the plates 302 can be provided and detected. Therefore, the measured capacitance between the plates 302 can indicate to the detector that the watchband 150 is in the first configuration.

[0079] like Figure 9 As shown, in the second configuration, the watchband 150 can provide a substrate 170 in a state corresponding to the watchband 150 in a relatively stretched, bent state. In the second configuration, the plates 302 of the capacitance sensor 300 can be relatively further apart than in other configurations, as shown by the gap distance 340 between the plates 302. When in the second configuration, a second capacitance between the plates 302 can be provided and detected. Therefore, the measured capacitance between the plates 302 can indicate to the detector that the watchband 150 is in the second configuration.

[0080] like Figure 8 and Figure 9 As shown, the capacitance (e.g., based on the gap distance 340) can be positively correlated with the tension and / or tightness of the strap 150. For example, using Figure 8 and Figure 9 The arrangement shown allows tension along the longitudinal axis of the strap 150 to move the plates 302 away from each other and increase the gap distance 340. Therefore, the tension in the strap 150 can be related to the capacitance of the capacitance sensor 300 and the gap distance 340, as follows:

[0081]

[0082] Where T is the tension in the watch strap 150, F is the force on the user's wrist, D is the gap distance 340, and C is the capacitance of the capacitive sensor 300.

[0083] It should also be understood that any number of other configurations can be provided and detected based on the corresponding changes in capacitance between plates 302. For example, configurations may include any configuration between and / or outside of the first and second configurations.

[0084] Now for reference Figure 10 and Figure 11Various arrangements are available for capacitive sensors. Such arrangements can facilitate accurate sensing by shielding against external influences and improving signal strength.

[0085] like Figure 10 As shown, the capacitive sensor 300 may include a ground electrode 320 and a sensing electrode 310 separated by a core 330 forming a dielectric or electrically insulating material. Optionally, the electrodes disclosed herein may be formed as plates or other conductive structures. Both the sensing electrode 310 and the ground electrode 320 are operatively connectable to the detector 250. Optionally, the detector 250 may be located within the watch body or strap of a watch.

[0086] In addition to the sensing electrode 310 and the ground electrode 320, the capacitive sensor 300 may also include a shielding electrode 350. The shielding electrode 350 may be positioned on the side of the sensing electrode 310 opposite to the ground electrode 320. By another example, the sensing electrode 310 may be positioned between the ground electrode 320 and the shielding electrode 350. Optionally, the shielding electrode 350 may be significantly larger than the sensing electrode 310. Additionally or alternatively, a portion of the shielding electrode 350 may surround one or more sides of the sensing electrode 310. For example, the sensing electrode 310 may be positioned within a recess of the shielding electrode 350 such that the shielding electrode 350 surrounds multiple sides of the sensing electrode 310. The shielding electrode 350 or other shielding elements may provide shielding for wiring (e.g., cables, connectors, wires, etc.) and other non-electrode areas.

[0087] The shielding electrode 350 helps eliminate and / or reduce the electric field on one side of the sensing electrode, so that changes in the gap distance 340 are more accurately represented by the capacitance between the sensing electrode 310 and the ground electrode 320. For example, providing the shielding electrode 350 can reduce interference, such as parasitic capacitance or any other interfering capacitance that causes unintended changes in the electric field. The detector 250 can use an active signal output to drive the shielding electrode 350 such that the shielding electrode is driven at the same voltage potential as the sensing electrode 310. This helps to eliminate any potential difference between the shielding electrode 350 and the sensing electrode 310. Any external interference will be coupled to the shielding electrode 350 with minimal interaction with the sensing electrode 310. Therefore, the shielding electrode 350 can help guide and focus the sensing area to a specific region (e.g., along the direction of the ground electrode 320), reduce environmental interference, reduce parasitic capacitance, and / or eliminate the effects of temperature changes on the ground plane.

[0088] like Figure 11As shown, the capacitive sensor 300 may include multiple layers of electrodes and / or plates. For example, the capacitive sensor 300 may include a sensing electrode 310 positioned between ground electrodes 320 on opposite sides of the sensing electrode 310. The sensing electrode 310 may be spaced from each of the ground electrodes 320 by respective cores 330 forming a dielectric or electrically insulating material. Each of the sensing electrode 310 and each of the ground electrodes 320 is operatively connectable to a detector 250. Optionally, the detector 250 may be located within the watch body or strap of a watch.

[0089] By providing multiple ground electrodes 320 on opposite sides of the sensing electrode 310, the two cores 330 can change their respective gap distance 340 when the strap changes. Therefore, compared to another arrangement providing only one ground electrode 320, the capacitance changes sensed by the sensing electrode 310 are effectively doubled. It should be understood that additional electrodes can also be provided to alter (e.g., amplify) the effects of these changes. By providing more amplifying capacitance, these changes are easier to detect, and these changes are performed with greater accuracy.

[0090] It should be understood that it is combinable. Figure 10 and Figure 11 The arrangement shown, such as providing, Figure 10 The shielding electrodes shown and Figure 11 The sensing electrode 310 and the grounding electrode 320. Such shielding electrodes may be positioned on one side of the grounding electrode 320 and / or the sensing electrode 310 to guide the detection of the electric field.

[0091] The watch can respond to detection by a capacitive sensor to change the fit of the watch strap. For example, watch 100 may include a tensioner 400 to provide dynamic adjustment of the fit of watch 100. The tensioner can change the fit of watch 100 in a variety of ways. For example, the tensioner can adjust one or more sizes of the watch strap coupled to the watch. In another example, the tensioner can adjust the coupling between the watch strap and the watch case. In another example, the tensioner can adjust the positioning of the watch case relative to the watch strap. In other embodiments, other adjustments are possible.

[0092] In some implementation schemes, such as Figure 12 As shown, the effective length of the watch strap 150 can be increased or decreased to adjust the fit of the watch 100. This type of adjustment can be referred to as "tightness". In these embodiments, the shorter the length of the watch strap 150, the tighter the fit of the watch 100 may be. Similarly, the longer the length of the watch strap 150, the looser the fit of the watch 100 may be. Figure 12The length adjustment of the watch strap 150 is indicated by a double-headed arrow. As shown, the length does not need to be changed along every section of the watch strap 150 to achieve the change in the effective length of the watch strap 150.

[0093] In some implementation schemes, such as Figure 13 As shown, the shape of the adjustable strap 150 is used to adjust the fit of the watch 100. This type of adjustment may be referred to as "winding force". For example, the cross-sectional shape of the strap 150 may be defined by the inner periphery of the strap 150, such as along the user engagement surface of the strap 150. The strap 150 may define multiple cross-sectional dimensions, which are defined by the distance between opposing inner surfaces of the strap 150. It should be understood that the case of the watch body 104 may also provide ends that define cross-sectional dimensions. When the shape change of the strap 150 alters at least one cross-sectional dimension of the strap 150, the fit of the watch 100 can be altered by changing the force applied to the portion of the cross-sectional dimension altered by the definition of the strap 150. In these embodiments, the shorter the cross-sectional dimension of the strap 150, the tighter the fit of the watch 100 may be. Similarly, the larger the cross-sectional dimension of the strap 150, the looser the fit of the watch 100 may be. Figure 13 The shape adjustment of the watch strap 150 is indicated by a double-headed arrow. As shown, the shape does not need to be changed along every part of the watch strap 150.

[0094] In some implementation schemes, such as Figure 14 As shown, the thickness of the watch strap 150 can be increased or decreased to adjust the fit of the watch 100. This type of adjustment can be referred to as "pressure." In these embodiments, the thicker the watch strap 150, the tighter the fit of the watch 100 may be. Similarly, the thinner the watch strap 150, the looser the fit of the watch 100 may be. Figure 14 The thickness adjustment of the watch strap 150 is indicated by a double-headed arrow. As shown, the thickness does not need to be changed along every section of the watch strap 150.

[0095] The adjustments described herein can be achieved by applying stimuli (such as mechanical energy, heat, electrical signals, etc.). Such stimuli can result in adjustments to the tightness as described herein by moving one or more parts of the watch body and / or strap. Appropriate structures (such as motors, actuators, pumps, inflatable airbags, electroactive materials, thermally responsive materials, etc.) can be provided to achieve such adjustments.

[0096] It should be understood that any given watch strap can provide Figures 12 to 14 One or more of the adjustments shown and / or other adjustments. It should also be understood that... Figures 12 to 14The adjustments and / or other adjustments shown herein can be applied equally or equivalently to other watch strap and / or watch embodiments described herein. More generally, it should be understood that the various examples and embodiments presented herein can be applied equally or equivalently to many watch straps and / or watches, and any single embodiment, or adjustment thereof by means of a tensioner or the watch itself, should not be considered as limiting oneself to that single embodiment.

[0097] Now for reference Figure 15 and Figure 16 The watch can perform actions that have been determined to be associated with a detected characteristic (e.g., capacitance) and / or its changes. The actions corresponding to the detected characteristic may include instructions for execution by the watch's processor and / or other components. Alternatively or additionally, the action may include instructing another device other than the electronic device to execute instructions. The action may be performed automatically upon detection of the characteristic. Additionally or additionally, the watch may provide a prompt requesting user confirmation of the action and may execute the action upon receiving user confirmation. Additionally or additionally, the user may manually override or modify the action.

[0098] The actions performed by watch 100 in response to the detection of a feature include actions beyond the normal operation of watch 100. For example, watch 100 may perform actions that are only available when the watch strap is detected to be in a specific configuration.

[0099] In some implementations, the detection of characteristics can be used to authorize other actions that are not available. For example, the watch can be locked when in a dismounted configuration. By another example, the watch can be unlocked or is capable of being unlocked when in a wrist-worn configuration.

[0100] Figure 15 A flowchart of an exemplary process 1500 for determining the operating state of a watch based on detected capacitance is shown. For illustrative purposes, this document primarily refers to... Figures 1 to 5 The watch 100 is used to describe process 1500. However, process 1500 is not limited to... Figures 1 to 5 The watch 100, and one or more frames (or operations) of process 1500 may be performed by different parts of the watch and / or by one or more other devices. Further for illustrative purposes, the frames of process 1500 are described herein as occurring sequentially or linearly. However, multiple frames of process 1500 may occur in parallel. Moreover, the frames of process 1500 need not be performed in the order shown, and / or one or more frames of process 1500 need not be performed and / or may be replaced by other operations.

[0101] Process 1500 may begin when watch 100 measures the capacitance of a capacitive sensor (such as a watch strap) (1502). This measurement may optionally be performed by a detector on the watch body based on the condition at the watch strap. The measured capacitance may be evaluated to determine if it corresponds to the condition of the watch on the user's wrist (1504). For example, predetermined capacitance values ​​may be associated with configurations on and off the wrist. In some embodiments, the watch may be unlocked and / or is capable of being unlocked (e.g., when prompted for a password) if the presence of a wrist is detected. The watch may be locked if the absence of a wrist is detected. It should be understood that additional actions may be assigned to each of the detectable configurations on and off the wrist.

[0102] Figure 16 A flowchart of an exemplary process 1600 for controlling the tension of a watch based on detected capacitance is shown. For illustrative purposes, this document primarily refers to... Figures 1 to 5 as well as Figures 12 to 14 The process 1600 is described using watch 100. However, process 1600 is not limited to... Figures 1 to 5 as well as Figures 12 to 14 The watch 100, and one or more frames (or operations) of process 1600 may be performed by different parts of the watch and / or by one or more other devices. Further for illustrative purposes, the frames of process 1600 are described herein as occurring sequentially or linearly. However, multiple frames of process 1600 may occur in parallel. Moreover, the frames of process 1600 need not be performed in the order shown, and / or one or more frames of process 1600 need not be performed and / or may be replaced by other operations.

[0103] Process 1600 may begin when watch 100 measures the capacitance of a capacitance sensor (such as a watch strap) (1602). This measurement may optionally be performed by a detector on the watch body based on the condition at the watch strap. The measured capacitance may be compared with a target value corresponding to a preferred tightness of the watch strap on the user's wrist (1604). Based on this comparison, the watch may determine whether to recommend adjusting the tightness (1606). If adjustment is recommended, the tensioner may be operated to adjust the tightness, as described herein. Process 1600 may optionally be repeated such that adjustment is performed according to a closed-loop method until the target is achieved. Such adjustment may be performed dynamically and / or without user input. Additionally or alternatively, the watch may provide the user with information about capacitance, tightness, etc., and allow the user to make adjustments manually.

[0104] Additional and / or alternative actions performed by the watch in response to detected characteristics include routine operations that affect the watch. For example, additional or altered features can be used based on the detected characteristics to maintain the watch's routine operation. Therefore, the user's experience with the watch is enhanced during its routine operation.

[0105] In some implementations, when a characteristic is detected, the watch provides a visual user interface feature corresponding to the characteristic of the watchband 110.

[0106] In some implementations, other watch settings can be modified upon detecting a characteristic. A watch band in a given configuration can be associated with activities supported by the watch. For example, the watch can display specific information, track user activity, acquire biometric readings, record the user's location, launch activity tracking applications, and / or modify notification settings (e.g., for greater prominence).

[0107] In some implementations, the watch can perform detection and actions in ways that are not necessarily perceptible to the user. For example, the watch can track the use and configuration of one or more watch straps. The tracked usage information includes date, time, duration, location, activity, the user's biometrics, and / or environmental characteristics related to the period before, during, and / or after the use of each watch strap. The tracked usage information can be collected in the watch's background processes. The tracked usage information can be output to the user or uploaded to an external device for analysis. The tracked usage information can be used for machine learning related to how each watch strap is used.

[0108] The watch can perform various other actions after recognizing the watchband 150. It should be understood that the watch can perform any associated action after detecting the feature. For example, the watch can launch an application, open a website, start a timer, display a message, provide an alert, communicate with another device, and / or perform other functions, provided the watch has the necessary capabilities.

[0109] Therefore, the watch strap described herein facilitates the ability of a watch to perform one or more operations based on detected characteristics and the strap's configuration. The characteristics of the strap can change when placed in different configurations, and each of these characteristics can be associated with each of the various configurations. These characteristics can be measured to detect which configuration the strap is in. For example, the strap may include an adjustable capacitor that changes its capacitance when the strap changes its configuration. For example, the capacitance may change based on the stretching of the strap, the bending of the strap, and / or the tightening and loosening of the engagement elements. The watch or other device can perform one or more operations based on the detected characteristics and configuration of the strap.

[0110] For convenience, various examples of aspects of this disclosure are described below as terms. These examples are provided by way of illustration and do not limit the subject matter.

[0111] Clause A: A watch comprising: a watch body including a detector; and a watch strap configured to be coupled to the watch body, the watch strap including: a substrate formed of an elastic material; and conductive plates positioned to move relative to each other when the substrate is stretched, wherein the detector of the watch body is configured to: measure the capacitance between the conductive plates; and perform an operation based on the capacitance.

[0112] Clause B: A watch strap comprising: a core configured to switch between a first configuration when the strap defines a first size and a second configuration when the strap defines a second size, the second size being different from the first size; and conductive plates configured to provide a first capacitance when the core is in the first configuration and to provide a second capacitance when the core is in the second configuration, the second capacitance being different from the first capacitance.

[0113] Clause C: A watch band comprising: a substrate configured to be stretched in at least one dimension; a ground electrode; a sensing electrode spaced apart from the ground electrode by a core configured to compress or expand when the substrate is stretched in the at least one dimension; and a shielding electrode located on the side of the sensing electrode opposite to the ground electrode, the shielding electrode being operable to reduce the electric field on the side of the sensing electrode opposite to the ground electrode.

[0114] One or more of the foregoing clauses may include one or more of the following features. It should be noted that any of the following clauses may be combined with each other in any combination and placed in the respective independent clauses, such as clauses A, B, or C.

[0115] Clause 1: The detector is further configured to detect whether the strap secures the watch to the user's wrist based on the capacitance.

[0116] Clause 2: If the detector detects that the watchband is not securely fastened to the user's wrist based on the capacitance, the detector is further configured to prevent access to at least one function of the watch until a password is provided.

[0117] Clause 3: The detector is further configured to detect tension on the strap based on the capacitance.

[0118] Clause 4: The watch strap also includes a tensioner configured to change the effective length of the watch strap.

[0119] Clause 5: The tensioner is configured to change the effective length of the strap based on the capacitance.

[0120] Clause 6: The conductive plate includes: a ground electrode located on a first side of the core; a sensing electrode located on a second side of the core; and a shielding electrode located on the second side of the core, wherein the sensing electrode is located between the ground electrode and the shielding electrode to reduce the electric field on the side of the sensing electrode opposite to the ground electrode.

[0121] Clause 7: The conductive plate includes: a first ground electrode; a second ground electrode; and a sensing electrode located between the first ground electrode and the second ground electrode.

[0122] Clause 8: The sensing electrode is separated from the first ground electrode by the core; and the sensing electrode is separated from the second ground electrode by an additional core.

[0123] Clause 9: The first configuration is achieved when the watch strap secures the watch to the user's wrist; and the second configuration is achieved when the watch is removed from the user's wrist.

[0124] Clause 10: The first dimension is the length of the strap in the relaxed configuration; and the second dimension is the length of the strap in the stretched configuration.

[0125] Clause 11: In the first configuration, the watch strap is under a first tension; and in the second configuration, the watch strap is under a second tension, which is different from the first tension.

[0126] Clause 12: The watch strap further includes: a first watch strap portion having a first engagement element; and a second watch strap portion having a second engagement element; in the first configuration, the first engagement element engages the second engagement element; and in the second configuration, the first engagement element does not engage the second engagement element.

[0127] Clause 13: The shielding electrode is larger than the sensing electrode.

[0128] Clause 14: A meter body comprising a detector operatively connected to the ground electrode, the sensing electrode, and the shielding electrode.

[0129] Clause 15: The detector is configured to drive the sensing electrode and the shielding electrode with the same voltage.

[0130] Clause 16: The core is configured to switch between a first configuration when the watch band defines a first size and a second configuration when the watch band defines a second size, the second size being different from the first size; and the sensing electrode and the ground electrode are configured to provide a first capacitance when the core is in the first configuration and to provide a second capacitance when the core is in the second configuration, the second capacitance being different from the first capacitance.

[0131] Clause 17: An additional grounding electrode located on one side of the sensing electrode.

[0132] As is widely recognized, the use of personally identifiable information should comply with privacy policies and practices that are generally accepted to meet or exceed industry or governmental requirements for protecting user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly explained to users.

[0133] Unless otherwise specified, elements mentioned in the singular do not imply uniqueness, but rather refer to one or more. For example, a “one” module can refer to one or more modules. Elements prefixed with “a,” “an,” “the,” or “the” do not exclude the existence of additional identical elements without further restrictions.

[0134] Titles and subtitles (if any) are for convenience only and do not limit the invention. The word “exemplary” is used to indicate that it is used as an example or illustration. In the sense of using the terms “comprising,” “having,” etc., such terms are intended to be inclusive in a manner similar to the term “including,” as they are interpreted as including when used as transitional words in claims. Relational terms such as “first” and “second” are used to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between these entities or actions.

[0135] Phrases such as aspect, that aspect, on the other hand, some aspects, one or more aspects, specific implementation, that specific implementation, another specific implementation, some specific implementations, one or more specific implementations, implementation scheme, that implementation scheme, another implementation scheme, some implementation schemes, one or more implementation schemes, configuration, that configuration, another configuration, some configurations, one or more configurations, subject matter, disclosure, this disclosure, other variations, etc., are for convenience and do not imply that disclosures involving one or more such phrases are essential to the subject matter, or that such disclosures apply to all configurations of the subject matter. Disclosures involving one or more such phrases may apply to all configurations or one or more configurations. Disclosures involving one or more such phrases may provide one or more examples. Phrases such as aspect or some aspects may refer to one or more aspects, and this applies similarly to other foregoing phrases.

[0136] The phrase "at least one" preceding a series of items, separated by the terms "and" or "or," modifies the list as a whole rather than for each individual member. The phrase "at least one" does not require selection of at least one item; rather, it allows for the inclusion of at least one item from any given item and / or at least one item from any combination of items and / or at least one item from each item. For example, each phrase in "at least one of A, B, and C" or "at least one of A, B, or C" refers only to A, only to B, or only to C; any combination of A, B, and C; and / or at least one of each of A, B, and C.

[0137] It should be understood that the specific order or hierarchy of the disclosed steps, operations, or processes is an illustration of exemplary methods. Unless otherwise expressly stated, it is understood that the specific order or hierarchy of steps, operations, or processes may be performed in different orders. Some steps, operations, or processes may be performed simultaneously. The appended method claims (if any) present the elements of the various steps, operations, or processes in an exemplary order, but this does not imply limitation to the specific order or hierarchy presented. These may be performed sequentially, linearly, in parallel, or in different orders. It should be understood that the described instructions, operations, and systems may generally be integrated together in a single software / hardware product or packaged into multiple software / hardware products.

[0138] On one hand, the term "coupled" can refer to direct coupling. On the other hand, the term "coupled" can refer to indirect coupling.

[0139] Terms such as top, bottom, front, back, side, horizontal, and vertical refer to any frame of reference, not the usual gravitational frame of reference. Therefore, such terms can extend upward, downward, diagonally, or horizontally within a gravitational frame of reference.

[0140] This disclosure is provided to enable those skilled in the art to practice the various aspects described herein. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concepts of the subject matter. This disclosure provides various examples of the subject matter, and the subject matter is not limited to these examples. Various modifications to these aspects will be apparent to those skilled in the art, and the principles described herein can be applied to other aspects.

[0141] All structural and functional equivalents of elements throughout the various aspects described herein that are known or later become apparent to those skilled in the art are expressly incorporated herein by reference and are intended to be covered by the claims. Furthermore, nothing disclosed herein is intended to be made public, regardless of whether such disclosure is expressly stated in the claims. Pursuant to paragraph 6 of 35 U.S.SC § 112, no claim element needs to be interpreted unless it is expressly stated using the phrase “the method is used for,” or, in the case of a method claim, using the phrase “the steps are used for.”

[0142] The title, background, brief description of the figures, abstract, and figures are incorporated herein and are provided as illustrative examples rather than as limiting descriptions. They are not intended to limit the scope or meaning of the claims. Furthermore, as will be seen in the detailed description, illustrative examples are provided for the purpose of simplifying the disclosure, and various features are combined in various specific embodiments. The disclosed methods should not be construed as reflecting an intention to require more features than expressly recited in each claim. Rather, as reflected in the claims, the inventive subject matter lies in all features of fewer than those in a single disclosed configuration or operation. The claims are thus incorporated into the detailed description, each claim being a separate claim on its own.

[0143] The claims are not intended to be limited to the aspects described herein, but are to be given the full scope consistent with the language of the claims and to cover all legal equivalents. Nevertheless, none of these claims contain subject matter that is inconsistent with applicable patent law, nor should they be interpreted in this manner.

Claims

1. A watch, the watch comprising: The watch body includes a detector; as well as A watch strap, configured to be coupled to the watch body, and the watch strap comprising: The substrate of the elastic material; and A plurality of conductive plates, the plurality of conductive plates being positioned to move relative to each other when the substrate is stretched. The detector of the table body is configured as follows: Measuring the capacitance between multiple conductive plates; and The operation is performed based on the capacitor, and The plurality of conductive plates include: First grounding electrode; The second grounding electrode; and A sensing electrode is located between the first ground electrode and the second ground electrode.

2. The watch according to claim 1, wherein, The detector is further configured to detect whether the watchband secures the watch to the user's wrist based on the capacitance.

3. The watch according to claim 2, wherein, The detector detects, based on the capacitance, that the watchband is not securely fastening the watch to the user's wrist. The detector is further configured to prevent access to at least one function of the watch until a password is provided.

4. The watch according to claim 1, wherein, The detector is further configured to detect tension on the watch strap based on the capacitance.

5. The watch according to claim 4, wherein, The watchband also includes a tensioner configured to change the effective length of the watchband.

6. The watch according to claim 5, wherein, The tensioner is configured to change the effective length of the watch strap based on the capacitance.

7. A watch strap, the watch strap comprising: The core is configured to switch between a first configuration when the watch band defines a first size and a second configuration when the watch band defines a second size, the second size being different from the first size; and A plurality of conductive plates are configured to provide a first capacitance when the core is in a first configuration and to provide a second capacitance when the core is in a second configuration, the second capacitance being different from the first capacitance, wherein the plurality of conductive plates include: First grounding electrode; The second grounding electrode; and A sensing electrode is located between the first ground electrode and the second ground electrode.

8. The watch strap according to claim 7, wherein, The plurality of conductive plates include: A grounding electrode, which is located on the first side of the core; Sensing electrodes, the sensing electrodes being located on a second side of the core; and A shielding electrode is located on the second side of the core, and a sensing electrode is located between the grounding electrode and the shielding electrode to reduce the electric field on the side of the sensing electrode opposite to the grounding electrode.

9. The watch strap according to claim 7, wherein: The sensing electrode is separated from the first grounding electrode by the core; and The sensing electrode is separated from the second grounding electrode by an additional core.

10. The watch strap according to claim 7, wherein: The first configuration is achieved when the watch strap secures the watch to the user's wrist; and The second configuration is achieved when the watch is removed from the user's wrist.

11. The watch strap according to claim 7, wherein: The first dimension is the length of the watch strap in its relaxed configuration; and The second dimension is the length of the watch strap when it is in a stretched configuration.

12. The watch strap according to claim 7, wherein: In the first configuration, the watch strap is under a first tension; and In the second configuration, the watch strap is under a second tension, which is different from the first tension.

13. The watch strap according to claim 7, wherein: The watch strap also includes: The first strap portion having the first engaging element; and The second strap portion having a second coupling element; In the first configuration, the first engaging element engages the second engaging element; and In the second configuration, the first engaging element does not engage with the second engaging element.

14. A watch strap, the watch strap comprising: A substrate, the substrate being configured to be stretched along at least one dimension; Grounding electrode; A sensing electrode, which is spaced from the ground electrode by a core, the core being configured to compress or expand as the substrate is stretched along at least one dimension; An additional grounding electrode is located on one side of the sensing electrode; as well as A shielding electrode is located on the side of the sensing electrode opposite to the grounding electrode, and the shielding electrode is operable to reduce the electric field on the side of the sensing electrode opposite to the grounding electrode.

15. The watch strap according to claim 14, wherein, The shielding electrode is larger than the sensing electrode.

16. The watch strap according to claim 14, wherein: The core is configured to switch between a first configuration when the watch band defines a first size and a second configuration when the watch band defines a second size, the second size being different from the first size; and The sensing electrode and the ground electrode are configured to provide a first capacitance when the core is in the first configuration, and to provide a second capacitance when the core is in the second configuration, the second capacitance being different from the first capacitance.

17. A watch, the watch comprising: The watch strap according to claim 15; as well as The meter body includes a detector operatively connected to the ground electrode, the sensing electrode, and the shielding electrode.

18. The watch according to claim 17, wherein, The detector is configured to drive the sensing electrode and the shielding electrode with the same voltage.

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