U.S. patent application number 15/051657 was filed with the patent office on 2016-09-29 for wearable device structure with enhanced motion detection by motion sensor.
This patent application is currently assigned to AliphCom. The applicant listed for this patent is Thomas Alan Donaldson. Invention is credited to Thomas Alan Donaldson.
Application Number | 20160278703 15/051657 |
Document ID | / |
Family ID | 50622991 |
Filed Date | 2016-09-29 |
United States Patent
Application |
20160278703 |
Kind Code |
A1 |
Donaldson; Thomas Alan |
September 29, 2016 |
WEARABLE DEVICE STRUCTURE WITH ENHANCED MOTION DETECTION BY MOTION
SENSOR
Abstract
Techniques associated with a wearable device structure with
enhanced motion detection by a motion sensor are described,
including a band configured to be worn, a nodule coupled to the
band, the nodule including a structure configured to enhance
detection of movement of an adjacent skin surface, the structure
having an articulator configured to rotate in a plurality of
planes, and a sensor coupled to the structure and configured to
detect rotational motion.
Inventors: |
Donaldson; Thomas Alan;
(Nailsworth, GB) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Donaldson; Thomas Alan |
Nailsworth |
|
GB |
|
|
Assignee: |
AliphCom
San Francisco
CA
|
Family ID: |
50622991 |
Appl. No.: |
15/051657 |
Filed: |
February 23, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
13827683 |
Mar 14, 2013 |
9265449 |
|
|
15051657 |
|
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61724199 |
Nov 8, 2012 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61B 5/6831 20130101;
A61B 5/6824 20130101; A61B 5/11 20130101 |
International
Class: |
A61B 5/00 20060101
A61B005/00; A61B 5/11 20060101 A61B005/11 |
Claims
1. A device, comprising: a band configured to be worn; a nodule
coupled to the band, the nodule comprising a structure configured
to enhance detection of movement of an adjacent skin surface, the
structure comprising an articulator configured to rotate in a
plurality of planes; and a sensor coupled to the structure and
configured to detect rotational motion.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of copending U.S.
Nonprovisional Patent Application No. 13/827,683, filed Mar. 14,
2013, and entitled "WEARABLE DEVICE STRUCTURE WITH ENHANCED MOTION
DETECTION BY MOTOR SENSOR," which claims the benefit of U.S.
Provisional Patent Application No. 61/724,199, filed Nov. 8, 2012,
and entitled "WEARABLE DEVICE STRUCTURE WITH ENHANCED MOTION
DETECTION BY MOTION SENSOR," all of which is incorporated by
reference herein in their entirety for all purposes.
FIELD
[0002] The present invention relates generally to electrical and
electronic hardware, electromechanical and computing devices. More
specifically, techniques related to a wearable device structure
with enhanced motion detection by motion sensor are described.
BACKGROUND
[0003] Conventional techniques for a wearable device with enhanced
detection by motion sensor are limited in a number of ways.
Conventional implementations of motion sensors, such as
accelerometers, are not well-suited for accurately detecting and
measuring movement having a small linear acceleration, as may occur
by displacement of a skin surface in response to a pulse in a blood
vessel. In particular, accelerometers typically have a threshold
sensitivity and have a difficult time measuring translations that
result in accelerations close to that threshold sensitivity.
[0004] Also, conventional wearable devices are not well-suited for
coupling motion sensors to particular parts of the body to detect
and measure such small movements. Thus, what is needed is a
solution for wearable device with enhanced detection by motion
sensor without the limitations of conventional techniques.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Various embodiments or examples ("examples") are disclosed
in the following detailed description and the accompanying
drawings:
[0006] FIG. 1 is a diagram depicting exemplary wearable devices
equipped with enhanced motion detection;
[0007] FIG. 2 is a diagram depicting exemplary placement of nodules
on a wrist;
[0008] FIGS. 3A-3B are diagrams depicting exemplary placement of
wearable devices on a wrist;
[0009] FIG. 4 is a diagram depicting exemplary placement of a
nodule on a wrist;
[0010] FIG. 5 is a diagram depicting an exemplary spring structure
coupled to a nodule;
[0011] FIG. 6 illustrates an exemplary adjustable wearable
device;
[0012] FIG. 7 illustrates an alternative exemplary adjustable
wearable device;
[0013] FIG. 8A-8B illustrates an exemplary wearable device formed
with tension; and
[0014] FIG. 9 illustrates an exemplary wearable device formed with
a bistable structure.
DETAILED DESCRIPTION
[0015] Various embodiments or examples may be implemented in
numerous ways, including as a system, a process, an apparatus, a
device, and a method associated with a wearable device structure
with enhanced detection by motion sensor. In some embodiments,
motion may be detected using an accelerometer that responds to an
applied force and produces an output signal representative of the
acceleration (and hence in some cases a velocity or displacement)
produced by the force. Embodiments may be used to couple or secure
a wearable device onto a body part. Techniques described are
directed to systems, apparatuses, devices, and methods for using
accelerometers, or other devices capable of detecting motion, to
detect the motion of an element or part of an overall system. In
some examples, the described techniques may be used to accurately
and reliably detect the motion of a part of the human body or an
element of another complex system. In general, operations of
disclosed processes may be performed in an arbitrary order, unless
otherwise provided in the claims.
[0016] A detailed description of one or more examples is provided
below along with accompanying figures. The detailed description is
provided in connection with such examples, but is not limited to
any particular example. The scope is limited only by the claims and
numerous alternatives, modifications, and equivalents are
encompassed. Numerous specific details are set forth in the
following description in order to provide a thorough understanding.
These details are provided for the purpose of example and the
described techniques may be practiced according to the claims
without some or all of these specific details. For clarity,
technical material that is known in the technical fields related to
the examples has not been described in detail to avoid
unnecessarily obscuring the description.
[0017] FIG. 1 is a diagram depicting the use of wearable devices
equipped with enhanced motion detection. Here, diagram 100 includes
users 102-104, wearable devices 106-108, structures 110 (including
articulator 112, pin 114 and motion sensor 116) and 120 (including
articulator 122, pin 124, motion sensor 126 and post 128). As
shown, wearable device 106 may be worn by user 102, and wearable
device 108 may be worn by user 104. In some examples, wearable
devices 106-108 may be implemented as a band having one or more
sensors, including motion sensors. In some examples, wearable
devices 106-108 may include motion sensors configured to register
and process data associated with greater movement, for example the
movement of user 104, as well as smaller movement, for example the
movement of user 102.
[0018] In some examples, wearable devices 106-108 may be
implemented with structure 110 or structure 120 to enhance
detection of motion by a motion sensor by amplifying orientation
changes. In some examples, articulators 112 and 122 may be
configured to transfer movement energy, for example linear
movement, from a surface (i.e., skin surface) to a motion sensor.
For example, articulators 112 and 122 may be configured to
translate a very small linear movement on a skin surface into a
rotational motion in two or more planes, which may be more easily
detected by a motion sensor. Here, articulators 112 and 122 may be
formed using metal, plastic, or other suitable materials (i.e.,
holds a shape and compatible with skin) In some examples,
articulators 112 and 122 may be configured to amplify motion (i.e.,
using orientation changes) or to convert linear motion into
rotational motion. In some examples, pins 114 and 124 may apply a
force to articulators 112 and 122, respectively. As shown, pins 114
and 124 may have a pointed end that fits into a
correspondingly-shaped indentation in articulators 112 and 122,
respectively, for example on a pivot point (i.e., at the center of
a side or on an axis of rotation), so that the force does not apply
moment, or any rotational force, to articulators 112 and 122. A
curved or rounded side of articulators 112 and 122 may be placed
against or adjacent to a surface (i.e., skin surface) to register
movement along the adjacent surface resulting in a rocking or
rotation of articulators 112 and 122. In other examples,
articulators 112 and 122 may be configured to rotate in two or more
planes. In some examples, articulators 112 and 122 may be
configured to translate small amount of linear movement (i.e., near
a threshold sensitivity of an accelerometer) into a rotational
movement more easily detected by a motion sensor (e.g., motion
sensors 116 and 126).
[0019] In some examples, motion sensors 116 and 126 may include an
accelerometer, vibration sensor (e.g., acoustic, piezoelectric, or
the like), or other type of motion sensor. In some examples, motion
sensors 116 may be coupled to articulators 110 by being mounted, or
otherwise placed securely, onto articulator 110. In some examples,
motion sensor 116 may be coupled to articulator 110 at or near an
edge farther or farthest out from pin 114 so that motion sensor 116
may be subjected to, and thereby register, a greater amount of
rotation, or other movement. In some examples, motion sensor 116
may be configured to register, or sense, rotational energy from
articulator 110. For example, movement on a surface against which
articulator 110 is being held may cause articulator 110 to rotate
in one or more planes. In this example, motion sensor 116 may
register and measure various characteristics (e.g., acceleration,
direction, or the like) of the rotation of articulator 110. In some
examples, articulator 110 may be configured to translate a small
amount of linear movement (i.e., near a threshold sensitivity of an
accelerometer) into a rotational movement more easily detected by
motion sensor 116. For example, articulator 112 may be placed (and
held) against a surface of skin adjacent to tissue, which in turn
is adjacent to a blood vessel (see, e.g., FIGS. 2-4). A pulse of
blood through such a blood vessel may have a small amount of linear
movement that may be transferred through tissue to a skin surface
against which articulator 112 may be placed such that articulator
112 may rotate in response to the movement of the blood vessel, and
motion sensor 116 may capture the rotation of articulator 112.
[0020] In some examples, post 128 may be mounted, or otherwise
placed securely, onto articulator 122. In some examples, post 128
may be configured to couple motion sensor 126 to articulator 122.
In some examples, post 128 may be configured to extend outward from
an edge of articulator 122, and away from a pivot point of
articulator 122, such that motion sensor 126 may be subjected to,
and thereby register, a greater amount of rotation when articulator
122 rotates in response to movement on a surface against which
articulator 122 is being held. In some examples, motion sensor 126
may be configured to register, or sense, rotational energy from
articulator 122. For example, movement on a surface against which
articulator 122 is being held may cause articulator 122 to rotate
in one or more planes. In this example, motion sensor 126 may
register and measure various characteristics (e.g., acceleration,
direction, or the like) of the rotation of articulator 122. In some
examples, articulator 122 may be configured to translate small
amount of linear movement (i.e., near a threshold sensitivity of an
accelerometer) into a rotational movement more easily detected by
motion sensor 126. For example, articulator 122 may be placed (and
held) against a surface of skin adjacent to tissue, which in turn
is adjacent to a blood vessel (see, e.g., FIGS. 2-4). A pulse of
blood through such a blood vessel may have a small amount of linear
movement that may be transferred through tissue to a skin surface
against which articulator 122 may be placed such that articulator
122 may rotate in response to the movement of the blood vessel, and
motion sensor 126 may capture the rotation of articulator 122.
Additional examples of structures having an articulator coupled to
a motion sensor are described in co-pending U.S. patent application
Ser. No. XX/XXX,XXX (Attorney Docket No. ALI-157), filed Mar. YY,
2013, entitled "Amplifying Orientation Changes for Enhanced Motion
Detection by a Motion Sensor," which is incorporated by reference
herein in its entirety for all purposes. In other examples, the
quantity, type, function, structure, and configuration of the
elements shown may be varied and are not limited to the examples
provided.
[0021] FIG. 2 is a diagram depicting exemplary placement of nodules
on a wrist. Here, diagram 200 includes nodules (or nodes) 202-204,
skin surface 206, blood vessel 208, tendons 210-212, bones 214-216.
Like-numbered and named elements may describe the same or
substantially similar elements as those shown in other
descriptions. In some examples, nodules 202-204 may be coupled to,
or formed integrally onto, a wearable device (not shown) such as a
band wearable on a wrist (see, e.g., FIGS. 3A-3B and 6-9). In some
examples, one or both of nodules 202-204 may be configured to house
or hold a structure for enhancing motion detection using a motion
sensor (i.e., by amplifying orientation changes), as described
herein. In some examples, nodules 202-204 may be coupled to a
wearable device in a position such that nodule 202 rests on skin
surface 206 on one side of tendon 210 and nodule 204 rests on skin
surface 206 on another side of tendon 212. For example, nodules
202-204 may be placed so as to straddle tendons 201-212 (e.g., main
tendons in a wrist, including Palmaris longus and flexor carpi
radialis, or the like). In some examples, a wearable device to
which nodules 202-204 are coupled may be configured to exert one or
more forces on nodules 202-204 to push nodules 202-204 against skin
surface 206 and create dips in skin surface 206 on either side of
tendons 210-212. In some examples, positioning nodules 202-204 in
this way may orient a wearable device. In some examples, nodule 202
may be configured to exert a force onto blood vessel 208 to hold
blood vessel 208 between nodule 202 and bone 214. For example,
nodule 202 may be configured to exert a force onto skin surface
206, the force being transferred through tissue to occlude (i.e.,
hold, trap, keep or place) blood vessel 208 against bone 214. In
some examples, positioning nodule 202 next to tendon 210 and
partially or wholly over blood vessel 208 may enable a motion
sensor (e.g., coupled to a structure for amplifying rotational
motion) coupled to nodule 202 to register and measure a pulse
traveling through blood vessel 208. In some examples, nodule 204
may be implemented with another motion sensor configured to detect
motion on skin surface 206 unrelated to said pulse traveling
through blood vessel 208. In some examples, a wearable device (not
shown), to which nodules 202-204 may be coupled, may be configured
to process data from a motion sensor in nodule 202 and another
motion sensor in nodule 204 to derive characteristics or attributes
associated with movement from a pulse traveling through blood
vessel 208. In some examples, nodules 202-204 may be configured as,
or with, electrodes using which bioimpedance may be measured and
heart rate may be detected. In other examples, nodules 202-204 may
be configured as, or with, piezoelectric sensors operable to
acquire acoustic signals including data associated with heart rate.
In other examples, the quantity, type, function, structure, and
configuration of the elements shown may be varied and are not
limited to the examples provided.
[0022] FIGS. 3A-3B are diagrams depicting exemplary placement of
wearable devices on a wrist. Here, diagrams 300 and 320 include
wearable device 302, nodules 304-306, tendons 308-310 and 322-324,
small wrist 312 and large wrist 326. Like-numbered and named
elements may describe the same or substantially similar elements as
those shown in other descriptions. In some examples, wearable
device 302 may be implemented as a band configured to be worn on a
wrist. In some examples, wearable device 302 may be configured with
data capabilities (e.g., data processing, communications, and the
like), including circuitry (i.e., logic) for processing sensor data
generated from sensors implemented in nodules 304-306, or elsewhere
on wearable device 302. For example, wearable device 302 may be
implemented with circuitry configured to translate data associated
with rotational motion of an articulator to determine a movement
(i.e., linear movement) of an adjacent surface. In another example,
wearable device 302 may be configured to derive data associated
with movement on an adjacent skin surface (e.g., on users 402-404's
wrists, arms, or other body parts), including data associated with
a direction of movement on an adjacent skin surface, a magnitude of
a force exerted by a pulse in a blood vessel underneath an adjacent
skin surface, a time period between two pulses, a heart rate, a
blood pressure, or the like.
[0023] In some examples, nodules 304-306 may be molded integrally
with wearable device 302. In other examples, nodules 304-306 may be
coupled to wearable device 302 removably. In some examples, nodules
304-306 may be coupled to, or molded onto, wearable device 302 on
an underside (i.e., an internal circumference, or a side facing in
when wearable device 302 is worn) such that nodules 304-306 make
contact, or are placed adjacent to, a body part (e.g., small wrist
312, large wrist 326, or the like) when worn. In some examples,
nodules 304-306 may be coupled to, or molded onto, one or more
locations on wearable device 302 in order to position nodules
304-306 on either side of tendons 308-310 or tendons 322-324, as
shown (see also FIG. 2). In some examples, wearable device 302 may
be formed with an original shape using a material having material
memory, such that a force may be applied to deform wearable device
302 from the original shape, and when the force is removed,
wearable device 302 may reassume, or return to, the original
shape.
[0024] In some examples, wearable device 302 may be adjustable
(e.g., by being formed of material having material memory, by
implementing a magnet at each end (see FIGS. 6-8), or the like) to
be worn on small wrist 312 (i.e., having a smaller circumference
and smaller distance between tendons 308-310), large wrist 326
(i.e., having a larger circumference and larger distance between
tendons 322-324), or other sized wrists. In some examples, wearable
device 302 may form a circular shape such that when nodules 304-306
are coupled to an internal circumference of wearable device 302,
nodules 304-306 point in (i.e., toward each other) when wearable
device 302 is adjusted to a smaller circumference, and point
farther away from each other when wearable device 302 is adjusted
to a larger circumference. For example, in FIG. 3A, when wearable
device 302 is worn on small wrist 312, nodules 304-306 may point in
toward each other, and thereby adjust to a smaller distance between
tendons 308 and 310. In another example, in FIG. 3B, when wearable
device 302 is worn on large wrist 326, nodules 304-306 may point
farther away from each other (i.e., distance between the internal
edges of nodules 304-306 is greater), and thus adjust to a larger
distance between tendons 322-324. In other examples, the quantity,
type, function, structure, and configuration of the elements shown
may be varied and are not limited to the examples provided.
[0025] FIG. 4 is a diagram depicting exemplary placement of a
nodule on a wrist. Here, diagram 400 includes nodule 402, skin
surface 404, blood vessel 406, tendons 408-410, forces 412-416 and
bones 418-420. Like-numbered and named elements may describe the
same or substantially similar elements as those shown in other
descriptions. In some examples, nodule 402 may include, or be
implemented to house, a structure for enhancing motion detection
(i.e., through amplification of orientation changes in a motion
sensor, as described herein). For example, nodule 402 may have an
articulator (e.g., articulators 112 and 122 in FIG. 1) against skin
surface 404. In some examples, nodule 402, or a wearable device
(e.g., wearable devices 106-108 in FIG. 1, wearable device 302 in
FIGS. 3A-3B, or the like) to which nodule 402 may be coupled, may
be configured to apply forces 412-414, force 412 being a radial
force directed toward the center of a limb (i.e., as may be
enclosed by skin surface 404), and force 414 being a
circumferential force, or other tangential force (i.e., parallel to
skin surface 404 at a location adjacent to articulator 402). In
some examples, forces 412-414 act to couple nodule 402 with skin
surface 404 by generating a resulting force 416. In some examples,
a motion sensor (e.g., motion sensors 116 and 126 in FIG. 1) may be
implemented in, or coupled to, nodule 402 to sense rotational
movement, for example of an articulator (e.g., articulators 112 and
122 in FIG. 1) included in, mounted on, or coupled to nodule 402.
In some examples, nodule 402 may be used to implement a structure
configured to amplify orientation changes caused by movement of
skin surface 404 resulting from a pulse traveling through blood
vessel 408. In other examples, the quantity, type, function,
structure, and configuration of the elements shown may be varied
and are not limited to the examples provided.
[0026] FIG. 5 is a diagram depicting an exemplary spring structure
coupled to a nodule. Here, diagram 500 includes nodule 502, springs
504-506, pulse 508 and blood vessel 510. Like-numbered and named
elements may describe the same or substantially similar elements as
those shown in other descriptions. In some examples, nodule 502 may
be coupled to a wearable device (e.g., wearable devices 106-108 in
FIG. 1, wearable device 302 in FIGS. 3A-3B, or the like) using
springs 504-506. In some examples, spring 504 may be a relatively
strong spring configured to apply a larger force than spring 506.
In some examples, spring 504 may be configured to apply a force
perpendicular to blood vessel 510. In some examples, spring 506 may
be configured to apply a tangential force, parallel to blood vessel
510. Forces applied by springs 504-506 may serve to hold nodule 502
against a surface (i.e., skin surface) (e.g., skin surface 206 in
FIG. 2, skin surface 404 in FIG. 4, or the like), and may cause
nodule 502 to create a dip in a skin surface, as described above.
In some examples, spring 504 may apply a force configured to hold
blood vessel 510 in a place or against a bone (e.g., bone 214 in
FIG. 2, bone 418 in FIG. 4, or the like). In some examples, spring
506 may apply a weaker force than spring 504, in a different or
opposite direction from an acceleration associated with pulse 508.
In some examples, spring 506 may compress in response to pulse 508
traveling through blood vessel 510. In some examples, nodule 502
may be implemented with sensors (e.g., motion sensors 116 and 126
in FIG. 1) configured to detect and measure acceleration resulting
from, or otherwise associated with, pulse 508 (i.e., using a
structure for amplifying rotational motion, as described herein).
In other examples, the quantity, type, function, structure, and
configuration of the elements shown may be varied and are not
limited to the examples provided.
[0027] FIG. 6 illustrates an exemplary adjustable wearable device.
Here, wearable device 600 includes magnet array 602 and magnet 604.
Like-numbered and named elements may describe the same or
substantially similar elements as those shown in other
descriptions. In some examples, wearable device 600 may comprise a
flexible band configured to be placed around a limb, such as a
wrist. In some examples, magnet array 602 may include two or more
magnets, a first magnet disposed at or near a first end of wearable
device 600, and subsequent magnets in magnet array 602 disposed
serially up the length of wearable device 600. In some examples,
magnet 604 may be disposed at or near a second, or opposite, end of
wearable device 600. In some examples, magnet 604 may be configured
to attract each of the magnets in magnet array 602, thereby
adjustably closing the first end of wearable device 600 with the
second end. For example, a first end of wearable device 600 may be
brought into proximity with a second end of wearable device 600,
which may in turn bring magnet 604 (i.e., disposed in the second
end) in proximity with a first magnet in magnet array 602 disposed
closest to the first end, the magnetic attraction between magnet
604 and the first magnet in magnet array 602 bring the first end
and the second end together to close wearable device (i.e., by
securing the first end against the second end) into a larger loop
(i.e., to encircle a larger wrist). As shown, magnet 604 may be
brought into proximity with a fourth or last magnet in magnet array
602 disposed farther from the first end, and closing or securing
wearable device 600 into a smaller loop (i.e., to encircle a
smaller wrist). In other examples, magnet 604 may be used to
attract other magnets in magnet array 602 to create different sized
loops for wearing on different sized wrists. In still other
examples, the quantity, type, function, structure, and
configuration of the elements shown may be varied and are not
limited to the examples provided.
[0028] FIG. 7 illustrates an alternative exemplary adjustable
wearable device. Here, wearable device 700 includes strip 702 and
magnet 704. Like-numbered and named elements may describe the same
or substantially similar elements as those shown in other
descriptions. In some examples, strip 702 may be formed using a
metal (e.g., stainless steel or the like) or other ferromagnetic
material, to which magnet 704 may attract. In some examples,
wearable device 700 may have a first end and a second, or opposite,
end. In some examples, strip 702 may be disposed along a length of
wearable device 700 starting in a first end, and magnet 704 may be
disposed at a second, or opposite, end. In some examples, strip 702
and magnet 704 may be configured to adjustably close (i.e., secure)
wearable device 700 around a wrist using an attraction between
strip 702 and magnet 704. In some examples, magnet 704 may be
attracted to any portion of strip 702, and thus moved along a
length of wearable device 700 in which strip 702 may be disposed in
order to expand or contract the size of wearable device 700. In
still other examples, the quantity, type, function, structure, and
configuration of the elements shown may be varied and are not
limited to the examples provided.
[0029] FIG. 8A-8B illustrates an exemplary wearable device formed
with tension. Here, wearable device 802 includes interface
materials 804-806. Like-numbered and named elements may describe
the same or substantially similar elements as those shown in other
descriptions. In some examples, wearable device 802 may be molded
with an amount of tension in an open position, as shown in FIG. 8A,
the tension causing two ends of wearable device 802 to resist being
pushed or pulled together. In some examples, interface material 804
may be molded onto, or coupled with, one side of one end of
wearable device 802, and interface material 806 may be molded onto,
or coupled with, another side of another end of wearable device
802, the one side and the another side configured to be brought
together to hold wearable device 802 in a closed position. In some
examples, interface material 804 and interface material 806 may be
disposed such that the one side (i.e., on which interface material
804 is disposed) and the another side (i.e., on which interface
material 806 is disposed) face each other when band 802 is in a
closed position. In some examples, interface materials 804-806 may
be configured to have high friction to hold the one side and the
another side together in a closed position. For example, interface
materials 804-806 may be formed using a high friction material
(e.g., rubber, polymer, or the like). In another example, interface
materials 804-806 may be formed with a high friction structure
(e.g., corrugated, hook and loop, or the like). In other examples,
the one side and the another side may be different sides than
shown. In still other examples, the quantity, type, function,
structure, and configuration of the elements shown may be varied
and are not limited to the examples provided.
[0030] FIG. 9 illustrates an exemplary wearable device formed with
a bistable structure. Here, wearable device 900 may be formed using
bistable band 902 (shown in positions 902a and 902b). Like-numbered
and named elements may describe the same or substantially similar
elements as those shown in other descriptions. In some examples,
bistable band 902 may be formed using a bistable material
configured to rest in two different states, for example, in
position 902a (i.e., an open position) and in position 902b (i.e.,
a closed position). In some examples, bistable band 902 may be
formed using steel (i.e., stainless steel) pre-formed into position
902a, which is able to curl into position 902b to close around a
wrist, or other body part. In some examples, bistable band 902 may
be configured to curl into position 902b in response to a force
exerted against a region of bistable band 902, as may result when
bistable band 902 in position 902a is slapped against a wrist. In
other examples, the quantity, type, function, structure, and
configuration of the elements shown may be varied and are not
limited to the examples provided.
[0031] Although the foregoing examples have been described in some
detail for purposes of clarity of understanding, the
above-described inventive techniques are not limited to the details
provided. There are many alternative ways of implementing the
above-described invention techniques. The disclosed examples are
illustrative and not restrictive.
* * * * *