CN117717323A - Health sensing holding belt - Google Patents

Abstract

The present disclosure relates to health sensing retention straps. The present disclosure provides a head-mountable device comprising: a housing; a display positioned in the housing; a processor positioned in the housing; and a retention strap connected to the housing and including a sensor configured to monitor brain activity of the user.

Description

Health sensing holding belt

Cross Reference to Related Applications

The present application claims priority from U.S. provisional patent application No. 63/376,281 filed on 9 month 19 2022 and entitled "Health Sensing Retention Band" and priority from U.S. non-provisional patent application No. 18/463,217 filed on 7 month 9 2023 and entitled "Health Sensing Retention Band", the entire disclosures of which are hereby incorporated by reference.

Technical Field

The embodiments relate generally to a retention strap for a head-mountable device. More particularly, embodiments of the invention relate to a retention strap for a head-mountable device that includes a health sensor.

Background

Recent advances in portable computing have enabled head-mountable devices (HMDs) to provide users with Augmented Reality (AR) and Virtual Reality (VR) experiences. The increasing complexity and functionality of these head-mountable devices has prompted the continual improvement of electronic components and sensors.

The sensors may be used for various purposes on the head-mountable device, such as detecting user information, user identity, biometric information, environmental detection, movement, location, and the like. There is a need for a sensor arrangement that efficiently utilizes a limited real estate on the HMD and is ideally located to detect expected data.

Disclosure of Invention

According to some aspects of the disclosure, a head-mountable device may include: a housing, a display positioned in the housing, a processor positioned in the housing, and a retaining strap connected to the housing, the retaining strap including a sensor for monitoring brain activity of a user.

In some examples, the retention strap includes a sensor array that is positionable adjacent a rear of a user's head when the user wears the head-mountable device. The sensor array may detect brain activity of the user. The sensor may transmit a signal to the processor, the signal based on the biometric information. The processor may analyze the signal and cause the head-mountable device to perform an action in response to the analysis of the signal. The action may be at least one of providing visual feedback, providing audio feedback, or providing haptic feedback.

In some examples, the retention strap is removably attached to the housing. The sensor is removably attached to the retention strap. The retaining strap may be in electrical communication with the display. The retention strap may be pivotably attached to the housing.

According to some aspects, a headband for a wearable device may comprise: a first end attached to the head-mountable device; a second end attached to the head-mountable device; and a sensor positioned between the first end and the second end. The sensor may detect brain activity of the user and generate a signal based on the detected brain activity.

In some examples, the sensor may be embedded in the headband. The headband may include an area transparent to the signals transmitted by the sensor. The headband may be capable of articulating with respect to the head-mountable device. The headband may include an expandable surface area. The signal may include a display command signal.

According to some aspects, a wearable electronic device may include: a display; a retention strap attached to the display and having a first orientation and a second orientation; and a sensor connected to the retaining strap. The sensor may detect brain activity of the user and generate a signal based on the brain activity. The processor may perform a first analysis of the signal in response to the holding strap being in a first orientation and may perform a second analysis of the signal in response to the holding strap being in a second orientation.

In some examples, the wearable electronic device may perform an action in response to the signal. The wearable electronic device may include a wearable device. The retaining strap may be adjustable. The sensor may perform at least one of functional near infrared spectroscopy or electroencephalography.

In some examples, the retention strap is movable between a first position and a second position. The sensor may be oriented toward a first brain region in the first position and a second brain region in the second position when the wearable electronic device is worn by the user. The retaining band may generate at least one of visual, audio, or tactile feedback in response to a signal from the sensor. The sensor may be a first sensor. The wearable device may further include a second sensor connected to the retaining strap. The second sensor may collect vital signs.

Drawings

The present disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:

fig. 1 shows a schematic block diagram of a head-mountable device.

Fig. 2 shows a top view of a head-mountable device.

Fig. 3 shows a cross-sectional side view of a head-mountable device.

Fig. 4A shows a rear perspective view of the retention strap.

Fig. 4B shows a side view of the retention strap of fig. 4A in an articulated position.

Fig. 4C shows a side view of the retention strap of fig. 4A in an articulated position.

Fig. 5 shows an exploded perspective view of the head-mountable device.

Fig. 6 shows a side view of a retaining strap with a sensor.

Detailed Description

Detailed references to representative embodiments shown in the drawings are provided below. The following description is not intended to limit the embodiments to one preferred embodiment. On the contrary, it is intended to cover alternatives, modifications and equivalents as may be included within the spirit and scope of the embodiments as defined by the appended claims.

The present disclosure details a retention strap for a head-mountable device integrated with a health sensor. The integrated retention strap enables both optical and electrical neuroimaging of the user's head. In some examples, the sensor-integrated headband may be used for brain imaging. For example, the sensor may be configured to perform functional near infrared spectroscopy (fnr). In some examples, the sensor may be used to perform an EEG (electroencephalogram).

The retaining strap may be adjustable or hingeable to position the sensor at a desired location on the user's head. By having the ability to adjust the retention strap, the sensor can view a specific area of the brain. For example, the position of the sensor may be adjusted or customized to view brain regions associated with language, learning, memory, understanding, sleep, stress, pain, attention, fear, discomfort, and the like.

In some examples, the retaining strap may be integrated with a sensor array that includes one or more transmitters that transmit signals. The emitter may be positioned a distance away from one or more detectors that sense the emitted signals. Based on the signals received by the detector, the processor may infer or determine specific brain activity. In some examples, the integrated sensor on the retention strap forms a brain-computer interface (BCI), such as a noninvasive neural interface. In some examples, the integrated sensor array may be used to detect a top frontal lobe network of the brain.

The HMD may include an output or feedback module that provides feedback based on detection from the sensor. Feedback from the system may include displaying a visualization to the user. For example, the feedback may include a breath visualization, a visualization related to the user's attention, a prompt or suggestion to take a rest or change activity to the user, or other recommendation or notification to the user.

These and other embodiments are discussed below with reference to fig. 1-6. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes only and should not be construed as limiting. Further, as used herein, a system, method, article, component, feature, or sub-feature comprising at least one of the first, second, or third options is to be understood as referring to a system, method, article, component, feature, or sub-feature that can comprise one (e.g., only one first option, only one second option, only one third option) of each listed option, multiple (e.g., two or more first options) of a single listed option, two (e.g., one first option and one second option) at the same time, or a combination thereof (e.g., two first options and one second option).

Fig. 1 shows a schematic block diagram of a head-mountable device 100 comprising a display 104, a holding strap 108, a memory 106, and a processor 120. The display 104 may include one or more optical lenses or a display screen in front of the user's eyes. The display 104 presents an augmented reality visualization, a virtual reality visualization, or other suitable visualization to the user. Additionally, the display 104 may be positioned in or on a housing or frame that supports the display 104 and additional electronic components. The display 104 in combination with the frame or housing and other electronic components supported by the housing may be referred to as a display unit 104 and a display 104. The retaining strap 108 may be connected to a frame or housing of the display 104.

In some examples, the retention strap 108 may include a support, strap, headband, belt, arm, or any other attachment mechanism capable of supporting the HMD 100 on the user's head. In some examples, the retention strap 108 may include a compliant (or semi-compliant) material or fabric that is partially wrapped around the user's head.

The retaining strap 108 may be made of a flexible material and may fit securely and tightly around the user's head. The retaining band 108 may be made of woven fabric, leather, polymer, or any other material compatible with integration with the sensor 112 or having electromagnetic transmission properties. In some examples, the retention strap 108 may be made of silicone or Thermoplastic Polyurethane (TPU). In some examples, the retention strap 108 may be made of a compression molded material such as rubber. The sensor 112 may be integrated into the compression molding material. In some examples, the retention strap 108 is semi-rigid. For example, the retaining strap 108 may be rigid where the sensor 112 is located. The sensors 112 may be flexible or deformable relative to each other such that the sensor array may move, bend or stretch with the retention strap 108. The retaining strap 108 may include a rigid portion where the electronic components are located.

The retaining strap 108 may include two ends, straps, or webbing 108a that are connected to the display 104. The retention strap 108 may include a middle portion 108b that is positioned between the ends 108a of the retention strap 108. The middle portion 108b may be configured to contact the back of the user's head, while the webbing 108a may be considered to contact the sides of the user's head. The retaining strap 108 may include a pivot 115. The pivot 115 may be located between the display 104 and the webbing 108a such that the entire retaining strap 108 may pivot or rotate relative to the display 104. In some examples, the pivot 115 may be positioned between the sideband 108a and the middle portion 108b to enable the middle portion 108b to pivot or rotate relative to the sideband 108b and the display 104. Further details of the pivot are provided below with reference to fig. 4A-4C.

The retaining strap 108 may include one or more sensors 112. It should be understood that throughout this disclosure, reference to a "sensor" may refer to one or more sensors. The phrase "sensor" allows for, but does not necessarily require, a plurality of sensors. In some examples, the sensor 112 is removably attached to the retention strap 108. The retaining strap 108 can be removably attached to the display 104 and in electrical communication with the display 104. In other words, the sensor 112 may be in electrical communication with the display 104.

The sensors 112 of the holding strap 108 may collect biometric information such as brain activity and vital signs (including body temperature, pulse data, respiration data, and blood pressure). The sensor 112 may generate a signal based on the collected user information and transmit the signal to the processor 120 for analysis. In some examples, memory 106 may include programming instructions responsive to signals from sensor 112. In some examples, the instructions may cause the output or feedback module to perform an action in response to the signal (i.e., in response to the biometric information collected by the sensor 112). In some examples, the retaining strap 108 itself provides feedback (e.g., by LED, tactile or haptic feedback, changing its shape, color, etc.) based on the collected biometric information.

For example, the user may be in a meditation or mental awareness session facilitated by the HMD 100. During an activity, the brain waves or other biometric of the user may change in a manner that can be detected by the sensor 112. The sensor 112 may generate one or more signals based on the received input. The sensor 112 may transmit signals to the processor 120, which may cause actuation of one or more components of the HMD 100 (e.g., to the display 104 to provide visual feedback to the user). The display 104 in electrical communication with the retaining band 108 may receive electrical communication and provide feedback (e.g., visual feedback, audio feedback, tactile feedback, etc.) to the user related to their biometric reading. The feedback may include determining when the user needs to rest, or when the difficulty of the activity needs to be reduced or increased, and the output may include scheduling various activities for the user or recommending adjustments to the HMD 100.

The sensor 112 may include a variety of different sensing devices. The sensor 112 may include, but is not limited to, a brain activity sensor, a camera or imaging device, a temperature device, an oxygen device, a motion device, a brain activity device, a sweat gland activity device, a respiratory activity device, a muscle contraction device, and the like. In some examples, the sensor may detect or sense biometric characteristics including characteristics of the autonomic nervous system.

Some specific examples of sensors include an Electrooculogram (EOG) sensor, an electrocardiogram (ECG or EKG) sensor, an EEG (electroencephalogram), a photoplethysmograph (PPG) sensor, a heart rate variability sensor, a blood volume pulse sensor, an oxygen saturation (SpO 2) sensor, a compact pressure sensor, an Electromyogram (EMG) sensor, a core body temperature sensor, a Galvanic Skin Response (GSR) sensor, a functional near infrared spectrum (fnr) sensor, a functional magnetic infrared imaging (FMRI) sensor, a non-contact passive Infrared (IR) sensor, an accelerometer, a gyroscope, a magnetometer, a inclinometer, a barometer, an infrared sensor, a global positioning system sensor, and the like.

In some examples, the sensor 112 may include a contact microphone (e.g., pressure-based MEMS), a bioelectrical activity sensor, a UV exposure sensor, or a particle sensor. In some examples, certain sensors may be used to evaluate stress and emotion. In some examples, the sensor may operate through a button cell or bluetooth connection. In some examples, the sensor is powered by a primary battery of the HMD.

The sensors 112 described herein may allow for observation of the Autonomic Nervous System (ANS), observation of relaxation and stress indicators, mental health, medical treatment, and the like. Using the sensors, real-time feedback of the biometric is available to the physician and care-giver. Use cases may include fitness settings, user content, workplace, telepresence, clinic, education, training, pain, treatment, etc. In some examples, a sensor may be used to capture facial expressions. This is particularly important in view of the face of the user being covered by the HMD. For example, HMDs may use MEMS or motion tracking sensors to detect facial expressions.

In some examples, the sensor 112 may be used to perform EEG detection. The sensor 112 may measure electrical activity in the cortex (outer layer of the brain). The sensor 112 may include electrodes placed on the participant's head, which may then non-invasively detect brain waves from the subject. The EEG sensor 112 can record up to thousands of snapshots of electrical activity generated in the brain per second. The recorded brain waves may be sent to an amplifier and then to a processor 120, remote electronics, or cloud to process the data.

In some examples, the sensor 112 may be used to perform functional near infrared spectroscopy (fnr). The sensor 112 may use low levels of non-ionized light to record changes in cerebral blood flow in the brain through the optical sensor 112 placed on the scalp surface. The signals may be recorded via a flexible fiber optic cable.

HMD 100 may be a wearable device that may include electronic components communicatively coupled to each other and to sensor 112 via a wired or wireless communication link. The communication link may be a physical connection, such as a wire, or may be a wireless connection, such as Bluetooth, wi-Fi, proximity sensor, or the like. In some examples, HMD 100 may be communicatively coupled to a companion electronic device (such as a remote control) or a personal computing device (such as a smart phone, smart watch, laptop, tablet, HMD, or any other form of electronic device). As described in further detail below, signals from the sensor 112 may affect the HMD 100. For example, the sensor 112 may affect the operation of visual information, content, style, frequency, and content provided by the sensor 212.

Any of the features, components, and/or parts illustrated in fig. 1 (including arrangements and configurations thereof) may be included alone or in any combination in any other examples of devices, features, components, and parts illustrated in other figures described herein. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 1, alone or in any combination.

Fig. 2 shows a top view of a Head Mountable Device (HMD) 200. HMD 200 may be substantially similar to a head-mountable device such as HMD 100 described herein and may include some or all of the features of the head-mountable device. HMD 200 may include a display unit 204 and a retaining strap 208. The display unit 204 may include electronic components such as a display, a processor, a memory, a controller, a battery, and other circuitry and electronics. The display unit 204 may include a frame or housing that structurally supports the electronic components. In some examples, display 204 includes an opaque, less transparent, or translucent screen, including any number of lenses, for presenting visual data.

The frame may at least partially abut one or more edges of the display. In some examples, the frame may be configured to contact the user's head or face. In some examples, the frame blocks external light and limits the user's peripheral field of view. Various components of the display unit 204 may be housed within a frame. For example, hardware and electronics that allow the functionality of the HMD may be housed within a frame. In some examples, the frame may include an attachment mount for connecting the display unit 204 to the retention strap 208. For example, the frame may include mechanical attachments, magnetic attachments, or any other suitable connector to attach the retention strap 208 to the display unit 204.

HMD 200 may be worn on the head of a user such that display unit 204 is positioned over the face of the user and disposed over one or both of the eyes of the user. In some examples, the retention strap 208 may be positioned against (i.e., contact or press against) a side and/or rear of a user's head when worn. In some examples, the retention strap 208 may be positioned at least partially over one or more ears of the user. In some examples, the retention strap 208 may be positioned adjacent one or more ears of the user. The display unit 204 and the retaining strap 208 may form a ring defining an aperture 205 for the user's head. However, it should be understood that this configuration is merely one example of how components of HMD 200 may be arranged, and in some examples, a different number of connector strips and/or retention straps may be included.

In some examples, the retention strap 208 includes a first sensor array 212a that includes one or more sensors. The sensor array 212a may be positioned on a rear portion of the retention strap 208, positioned to contact or be proximate to a rear portion of the user's head when the user wears the HMD 200. In some examples, the retention strap 208 includes a second sensor array 212b that includes one or more sensors. The second sensor array 212b may be positioned on a side strap or arm of the retention strap 208, positioned to contact or be proximate to a side of the user's head when the user wears the HMD 200. In some examples, the first sensor array 212a and the second sensor array 212b are independent and different in both form and functionality. The first sensor array 212a may include different sensors than the second sensor array 212 b.

In some examples, the first sensor array 212a may translate or move along the retention strap 208. For example, the first sensor array 212a may be slid from a first position on the retention strap 208 (e.g., the rear of the strap) to a second position on the retention strap 208 (e.g., the side strap). The translation of the sensor array 212a may be actuated manually or automatically. In this way, the sensor array 212a may be moved to monitor different areas of the user's head.

In some examples, the first sensor array 212a and the second sensor array 212b (collectively, "sensors 212") include the same sensor and are considered part of a single sensor array. The sensor 212 may be positioned on the interior surface 207 of the retention strap 208. In some examples, the sensor 212 is positioned in the retention strap 208 (i.e., between the interior surface 207 and the exterior surface 209). In some examples, the sensor 212 may span substantially the entire length of the retention strap 208. As will be discussed in more detail herein, the sensor 212 may be integrated with the retention strap 208 in a variety of ways.

In some examples, the sensor 212 may be used to perform EEG detection. The sensor 212 may measure electrical activity in the cortex (outer layer of the brain). The sensor 212 may include electrodes placed on the participant's head, which may then non-invasively detect brain waves from the subject. The EEG sensor 212 can record up to thousands of snapshots of electrical activity generated in the brain per second. The recorded brain waves may be sent to an amplifier and then to an HMD computer, remote electronic device, or cloud to process the data.

In some examples, the sensor 212 may be used to perform functional near infrared spectroscopy (fnr). The sensor 212 may use low levels of non-ionized light to record changes in cerebral blood flow in the brain through the optical sensor 212 placed on the scalp surface. The signals may be recorded via a flexible fiber optic cable.

Any of the features, components, and/or parts illustrated in fig. 2 (including arrangements and configurations thereof) may be included alone or in any combination in any other examples of devices, features, components, and parts illustrated in other figures described herein. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 2, alone or in any combination. Further details regarding the integration of the sensor into the HMD retention strap will be described below with reference to fig. 3.

Fig. 3 shows a cross-sectional side view of a Head Mountable Device (HMD) 300. HMD 300 may be substantially similar to the head-mountable devices described herein, such as HMDs 100 and 200, and may include some or all of the features of the head-mountable devices. In some examples, the sensor 312 positioned in/on the retention strap 308 can be operatively coupled to one or more electronic components in the display unit 304. For example, the sensor 312 may be electrically coupled to a power source via electrical connection 311, such as a battery 335 disposed within or on the housing of the display unit 304. The sensor 312 may be communicatively coupled with a processor 320 or other controller housed within the head-mountable device 300. The battery 335 and/or the processor 320 may be positioned with the housing of the display unit 304, within the retaining strap 108, outside of the housing of the display unit 304 and the retaining strap 108, or a combination thereof. The sensor 312 may generate and transmit a signal reflecting the user's biometric to the processor 320. Processor 320 may then cause a command or instruction to be issued.

Although sensor 312 is shown as being connected to battery 335 and processor 320 via wired connection 311, in some examples sensor 312 may wirelessly receive data and/or power from battery 335 and/or processor 320 via any desired method or technique. In some examples, the sensor 312 may be communicatively coupled to an external device that is not located on the HMD 300.

Additionally, while components of the wearable electronic device 300 are shown as being connected to one another at certain locations, it should be understood that any component of the HMD 300 may be electronically and/or mechanically connected to one or more of any other components of the HMD 300 in any manner and location as desired.

In some examples, the retention strap 308 may include other operational or functional components in addition to the sensor 312. For example, the retention strap 108 may include a battery 335, which may be in electrical communication with the display unit 304 and/or the sensor 312.

Any of the features, components, and/or parts illustrated in fig. 3, including the arrangement and configuration thereof, may be included alone or in any combination in any other examples of devices, features, components, and parts illustrated in the other figures described herein. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 3, alone or in any combination.

Fig. 4A shows a rear perspective view of the retaining strap 408. The retention strap 408 may be substantially similar to the retention straps described herein (such as retention straps 108, 208, and 308) and may include some or all of the features of the retention straps described herein. While fig. 4A shows the sensor 412 visible on the exterior of the retention strap 408, it should be understood that in some examples the sensor 412 is hidden or hidden behind a cover or layer of the retention strap 408. The sensor 412 may be configured to directly contact or touch the user's head. In some examples, the sensor 412 is a non-contact sensor. In some examples, the retention strap 408 is composed of multiple components. For example, the retention strap 408 may include a webbing or arm 408a and a middle portion or back 408b (collectively retention strap 408). The back 408b may be connected to the arm 408a at each end via a pivot 415.

In some examples, the sensors 412 may be interconnected (i.e., electrically connected) via wires 411. The conductive lines 411 may also define a communication link between the display unit and the retaining strap 408. The sensor 412 may be disposed across substantially the entire rear portion 408b of the retention strap 408. In some examples, the sensor 412 may be intentionally positioned to align with a particular portion of the user's head when worn. As shown in more detail with reference to fig. 4B and 4C, the retention strap 408 may be hingeable. By adjusting, articulating, or moving the position of the retaining strap 408 relative to the HMD, the sensor 412 may be positioned at various areas of the user's head.

In some examples, the sensor 412 may include a ground sensor. For example, one or more of the sensors 412 may be a ground sensor that serves as a reference sensor. The detection from sensor 412 may be compared to a ground reference sensor to analyze the detection. In some examples, the sensor 412 may include rounded edges and/or an elastomeric or soft material that is transparent to the signals generated by the sensor 412. The rounded edges and soft material may help reduce discomfort when the sensor 412 contacts the user's head. In some examples, the geometry of the sensor 412 may be specifically designed to assist in separating the user's hair to ensure effective contact with the user's head. In some examples, the sensor moves (e.g., vibrates, rotates, or oscillates) to facilitate proper contact with the user's skull.

In some examples, the retention strap 408 is a dedicated strap that is interchangeable with other headgear that is customized for a different use. For example, there may be individual custom retention bands for educational, sports, industrial applications, health, learning applications, training applications, and the like. Each different retention strap may be integrated with a sensor specific to its needs.

In some examples, the retention strap 408 may be detachable or removable from the HMD. In other words, the HMD may include a standard headband that is replaced or modified with a retaining strap 408. In some examples, the retention strap 408 may be an additional component added to the HMD when desired or needed. The retaining strap 408 may include an electronic/mechanical attachment mechanism to attach to the HMD. For example, the retention strap 408 may include an attachment mechanism 418 that may electronically, mechanically, and/or magnetically connect the retention strap 408 to the HMD. In some examples, the retention strap is wirelessly connected to the HMD to transmit data. The retaining strap 408 may include its own power supply and processing capabilities.

In some examples, the retention strap 408 may be expandable to expose the additional sensor 412. For example, the retention strap 408 may fold or overlap upon itself to reduce the surface area of the retention strap 408. The retaining strap 408 can then be stretched, expanded, or expanded, as desired, to expose additional sensors that were previously covered.

Fig. 4B shows a side view of the retaining strap 408 rotated upward. As shown, the rear portion 408b of the retention strap 408 can rotate relative to the side arm 408a via the pivot 415. In some examples, the entire retaining band 408 may be rotatable relative to a housing or frame of the HMD (i.e., the pivot 415 may be located on the HMD housing). The movement of the retaining band 408 may be manual or automatic. In some examples, the user is prompted, guided, or instructed to move the retention strap 408 to a particular position or configuration. For example, the system may prompt the user to adjust the retention strap 408 to optimize the ability of the sensor 412 to detect the desired biometric data. In this configuration, the sensor 412 would be positioned at or near the top of the user's head.

In some examples, the HMD includes a plurality of retaining bands 408. For example, the HMD may include a back-of-head strap wrapped around the back of the user's head, and an upper-of-head strap wrapped on top of the user's head. Each belt may include a sensor as described herein. In some examples, the retention strap 408 may be a bifurcated strap with a sensor on each bifurcated portion to increase the area of coverage of the sensor on the head.

Fig. 4C shows a side view of the holding strap 408 rotated downward. As shown, the rear portion 408b of the retention strap 408 can rotate relative to the side arm 408a via the pivot 415. In some examples, the entire retaining strap 408 may be rotated relative to a housing or frame of the HMD (i.e., the side strap 408a is also rotated and the pivot 415 is located on the HMD housing). The movement of the retaining band 408 may be manual or automatic. In some examples, the user is prompted, guided, or instructed to move the retention strap 408 to a particular position or configuration. For example, the system may prompt the user to adjust the retention strap 408 downward to optimize the ability of the sensor 412 to detect the desired biometric data. In this configuration, the sensor 412 would be positioned at or near the bottom of the user's head, near the top of the neck. In this configuration, the sensor 412 may be used to detect information about the neck muscles. In some examples, the location or position of the retention strap 408 may determine what type of analysis the processor performs. For example, when acquiring the signal, the processor may interpret the signal differently based on the detected position of the retaining band 408 relative to the HMD and/or the user. In some examples, the signal analysis changes based on the brain region monitored by the sensor 412. In some examples, the operation of the sensor itself changes based on the position of the retaining band 408. For example, different sensors may be used when monitoring different areas of the brain, or different sensor emissions/detections may be used based on the location of the sensor relative to the user. According to one example, a position detecting IMU, sensor, encoder, etc. may be positioned in the holding strap 408 to detect the relative position of the strap and generate a signal indicative of the position. The processor may then use the signal to determine the type of analysis to be performed on the data collected from the sensor 412.

Any of the features, components, and/or parts illustrated in fig. 4A-4C (including arrangements and configurations thereof) may be included in any other example of a device, feature, component, and part illustrated in other figures described herein, alone or in any combination. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 4A-4C, alone or in any combination.

Fig. 5 shows an exploded perspective view of HMD 500. HMD 500 may be substantially similar to any one of HMDs described herein, such as HMDs 100, 200, 300, and 500, and may include some or all of the features of any one HMD. HMD 500 may include a display unit 504 and a retaining strap 508. The retaining strap 508 may include an inner portion 507 that contacts the user's head when worn, and an outer portion 509 that at least partially defines an outer surface of the wearable device 500. The outer portion 509 may be integrally formed with the inner portion 507. In other words, the inner portion 507 and the outer portion 509 may be made from a single piece of material (shown separately herein for simplicity). In some examples, the outer portion 509 and the inner portion 507 may be coupled together, for example, using an adhesive, threads, or other coupling techniques.

In some examples, HMD 500 may include a first sensor array 512a and a second sensor array 512b (collectively, "sensors 512"). In some examples, the inner portion 507 may include a material that is transmissive to the sensor 512. The sensor 512 may be positioned between the inner portion 507 and the outer portion 509 such that the sensor 512 is positioned within the retaining band 508. In some examples, the inner portion 507 of the retaining band 508 may include a perforated portion adjacent to the sensor 512. The perforated portion may include holes, gaps, or apertures formed in the material of the inner portion 507.

The aperture in the inner portion 507 may correspond to the location of the sensor 512 and may allow a signal from the sensor or the sensor itself to pass through the aperture. In other words, the sensor 512 may be exposed and accessible at the inner portion 507, for example, to contact the user's head. In some examples, the sensor 512 is embedded or sandwiched between the inner portion 507 and the outer portion 509 of the retaining strap 508. In some examples, the sensor 512 may be positioned adjacent to a sensor transparent or transmissive window 530 that allows signals to be transmitted and received between the user's head and the sensor 512. The sensor 512 may be electrically coupled to an electronic component 520, such as a processor or a battery, in the display unit 504 via one or more electrical connections 511.

In some examples, the sensor array 512 may be flexible and capable of bending or buckling depending on the shape of the retaining strap 508 on the user's head. In some examples, the sensor 512 includes a flexible cable and/or an optical fiber or fiber optic cable woven into the fabric of the retention strap 508. In some examples, the retention strap 508 may include conductive fibers woven into the fabric of the retention strap 508.

The retaining strap 508 may be made of a flexible material and may fit securely and tightly around the user's head. The retaining band 508 may be made of a woven fabric, leather, polymer, or any other material compatible with microperforations or having electromagnetic transmission properties. In some examples, the retention strap 508 may be made of silicone or Thermoplastic Polyurethane (TPU). In some examples, the retaining strap 508 may be made of a compression molded material such as rubber. The sensor 512 may be integrated into the compression molding material. In some examples, the retaining strap 508 is semi-rigid. For example, the retaining strap 508 may be rigid where the sensor 512 is located.

Any of the features, components, and/or parts illustrated in fig. 5, including the arrangement and configuration thereof, may be included alone or in any combination in any other examples of devices, features, components, and parts illustrated in the other figures described herein. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 5, alone or in any combination.

Fig. 6 shows a side or cross-sectional view of a portion of retaining strap 608. The retention strap 608 may be substantially similar to the retention straps described herein (such as retention straps 108, 208, 308, 408, and 508) and may include some or all of the features of the retention straps described herein. The retaining strap 608 may include one or more sensors 612a, 612b, and 612c (collectively, "sensors 612"). The sensor 612 may be partially or fully embedded or encapsulated in the retaining band 608. The retaining strap 608 may include a first interior surface 607 that faces the user's head when worn and a second exterior surface 609 that faces away from the user and defines an exterior of the retaining strap 608. In some examples, the first surface 607 directly contacts or touches the user's head when the user is wearing or wearing the HMD.

Sensor 612a may be positioned on an exterior surface 609 of retaining band 608. In some examples, the first surface 607 may define an interior and the second surface 609 may be an exterior of the retention strap 608. Thus, the sensor 612a may be positioned on the exterior of the retention strap 608. In some examples, the retention strap 608 may include a sensor 612b embedded, encapsulated, or otherwise surrounded by the retention strap 608. The retaining strap 608 may include a sensor 612c positioned such that a portion of the sensor 612c is exposed through the interior surface 607. In other words, the sensor 612c may at least partially define the interior of the retention strap 608 and may directly contact or touch the user's head. In some examples, sensor 612c may partially surround or be embedded in retaining band 608. In some examples, sensor 612c is externally attached to retaining band 608, positioned on an interior of retaining band 608.

The sensors 612a and 612b may have corresponding sensor regions 625a, 625b, respectively. The sensor regions 625a, 625b may represent fields of view or cones of influence transparent to the signals emitted by the sensors 612a, 612b. In some examples, the field of view of the sensor 612 may be approximately 50 degrees. The sensors 612a, 612b may detect physiological, biological, and/or biometric changes of the user's body through the corresponding sensor regions 625a, 625b. For example, the sensors 612a, 612b may detect changes in the user by the material of the retaining strap 608. Other sensors may be added or substituted as desired. In some examples, the sensor regions 625a, 625b may comprise a different material than the rest of the retention strap 608. For example, the sensor areas 625a, 625b may be transparent to certain signals from the sensors 612a, 612b or from the user, while the remainder of the retaining strap 608 is opaque or non-transmissive to such signals.

In some cases, positioning of sensor 612b closer to first surface 607 than sensor 612a may correspondingly decrease field of view 625b. In some examples, the sensor 612c may be flush with the interior surface 607 and/or directly contact the user's head. This is just one example of a sensor depth variation, as multiple sensors may be disposed on the first surface 607 of the retaining strap 608, or between the first surface 607 and the second surface 609 of the retaining strap 608.

Any of the features, components, and/or parts illustrated in fig. 6 (including arrangements and configurations thereof) may be included alone or in any combination in any other examples of devices, features, components, and parts illustrated in the other figures described herein. Likewise, any of the features, components, and/or parts shown or described with reference to other figures (including arrangements and configurations thereof) may be included in the examples of apparatus, features, components, and parts shown in fig. 6, alone or in any combination.

To the extent that the present exemplary systems and methods use personally identifiable information, such use of personally identifiable information should follow privacy policies and practices that are generally considered to meet or exceed industry or government requirements for maintaining user privacy. In particular, personally identifiable information data should be managed and processed to minimize the risk of inadvertent or unauthorized access or use, and the nature of authorized use should be specified to the user.

The foregoing description uses specific but exemplary nomenclature to provide a thorough understanding of the examples. These specific details are not necessary for the practice of the described examples, but are described and presented herein for purposes of illustration and description only. They are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

Claims (20)

1. A head-mountable device, comprising:

a housing;

a display positioned in the housing;

a processor positioned in the housing; and

a retention strap connected to the housing, the retention strap including a sensor configured to detect brain activity.

2. The head-mountable device of claim 1, wherein:

the sensor further includes a sensor array configured to detect brain activity, the sensor array positionable adjacent a rear of the head.

3. The head-mountable device of claim 1, wherein:

the sensor transmitting a signal to the processor, the signal based on the detected brain activity;

the processor analyzing the signal; and is also provided with

The processor causes the head-mountable device to perform an action in response to the analysis of the signal.

4. The head-mountable device of claim 3, wherein the action comprises at least one of providing visual feedback, providing audio feedback, or providing haptic feedback.

5. The head-mountable device of claim 1, wherein the retention strap is removably attached to the housing.

6. The head-mountable device of claim 1, wherein the sensor is removably attached to the retention strap.

7. The head-mountable device of claim 1, wherein the retaining strap is in electrical communication with the display.

8. The head-mountable device of claim 1, wherein the retention strap is pivotably attached to the housing.

9. A headband for a wearable device, comprising:

a first end configured to be attached to the head-mountable device;

a second end configured to be attached to the head-mountable device; and

a sensor positioned between the first end and the second end, the sensor configured to:

detecting brain activity of a user; and

a signal is generated based on the detected brain activity.

10. The headgear of claim 9, wherein:

the sensor is embedded in the headband; and is also provided with

The headband includes an area transparent to the signals transmitted by the sensor.

11. The headgear of claim 9, wherein the headgear is capable of articulating with respect to the head-mountable device.

12. The headgear of claim 9, wherein the headgear comprises an expandable surface region.

13. The headgear of claim 9, wherein the signal comprises a display command signal.

14. A wearable electronic device, comprising:

a display;

a retaining strap attached to the display, the retaining strap having a first orientation and a second orientation;

a sensor connected to the retention strap, the sensor configured to detect brain activity of a user and generate a signal based on the brain activity; and

a processor configured to:

performing a first analysis of the signal in response to the retention strap being in the first orientation; and

a second analysis of the signal is performed in response to the retention strap being in the second orientation.

15. The wearable electronic device of claim 14, wherein the wearable electronic device performs an action in response to the signal.

16. The wearable electronic device of claim 14, wherein:

the wearable electronic device includes a head-mountable device; and is also provided with

The retaining strap is adjustable.

17. The wearable electronic device of claim 14, wherein the sensor is configured to perform at least one of functional near infrared spectroscopy or electroencephalography.

18. The wearable electronic device of claim 14, wherein the retention strap is movable between the first orientation and the second orientation, the sensor pointing in the first orientation toward a first brain region and pointing in the second orientation toward a second brain region when the wearable electronic device is worn by the user.

19. The wearable electronic device of claim 14, wherein the retaining strap generates at least one of visual, audio, or tactile feedback in response to the signal from the sensor.

20. The wearable electronic device of claim 14, wherein:

the sensor is a first sensor; and is also provided with

A second sensor connected to the retention strap is also included, the second sensor configured to collect vital signs.