U.S. patent application number 15/267789 was filed with the patent office on 2017-01-05 for user interface system.
The applicant listed for this patent is Tactus Technology, Inc.. Invention is credited to Craig Michael Ciesla, Nathaniel Mark Saal, Micah B. Yairi.
Application Number | 20170003745 15/267789 |
Document ID | / |
Family ID | 44787869 |
Filed Date | 2017-01-05 |
United States Patent
Application |
20170003745 |
Kind Code |
A1 |
Ciesla; Craig Michael ; et
al. |
January 5, 2017 |
USER INTERFACE SYSTEM
Abstract
A user interface system including a sheet that defines a surface
and at least partially defines a first level fluid vessel arranged
at a first level within the sheet and a second level fluid vessel
arranged at a second level within the sheet, wherein both the first
and second level fluid vessels are arranged underneath the surface;
a first volume of fluid contained within the first level fluid
vessel; a second volume of fluid contained within the second level
fluid vessel; and a displacement device coupled to the first and
second level fluid vessels that selectively manipulates the first
and second volumes of fluid, thereby deforming a particular region
of the surface to a first and second stage, respectively or
deforming a first particular region and a second particular region
of the surface, respectively.
Inventors: |
Ciesla; Craig Michael;
(Hayward, CA) ; Yairi; Micah B.; (Hayward, CA)
; Saal; Nathaniel Mark; (Hayward, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Tactus Technology, Inc. |
Hayward |
CA |
US |
|
|
Family ID: |
44787869 |
Appl. No.: |
15/267789 |
Filed: |
September 16, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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14691344 |
Apr 20, 2015 |
9477308 |
|
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15267789 |
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13090213 |
Apr 19, 2011 |
9013417 |
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14691344 |
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61325773 |
Apr 19, 2010 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G06F 3/0414 20130101;
G06F 2203/04809 20130101; G06F 3/016 20130101; G06F 3/0412
20130101 |
International
Class: |
G06F 3/01 20060101
G06F003/01; G06F 3/041 20060101 G06F003/041 |
Claims
1. A user interface system comprising: a layer defining a surface
and an attachment surface and comprising a deformable portion; a
first substrate comprising a particular portion, defining a first
fluid vessel, and coupled to the layer at the attachment surface,
the deformable portion of the layer and the first substrate
cooperating to define a first cavity at a first depth from the
surface and fluidly coupled to the first fluid vessel; a second
substrate coupled to the first substrate and defining a second
fluid vessel, the first substrate and the second substrate
cooperating with the particular portion of the first substrate to
define a second cavity at a second depth from the surface and
fluidly coupled to the second fluid vessel; and a displacement
device fluidly coupled to the first fluid vessel and the second
fluid vessel, selectively manipulating fluid in the first fluid
vessel into the first cavity to transition the deformable portion
of the layer from a retracted setting to an expanded setting
tactilely distinguishable from the surface, and selectively
manipulating fluid in the second fluid vessel into the second
cavity to deform the particular portion and the deformable portion
from the retracted setting to a second expanded setting.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 14/691,344, filed 20 Apr. 2015, which is a
continuation of U.S. patent application Ser. No. 13/090,213, filed
19 Apr. 2011, which claims the benefit of U.S. Provisional
Application No. 61/325,773, filed on 19 Apr. 2010, all of which are
incorporated in their entireties by this reference.
[0002] This application is related to U.S. application Ser. No.
11/969,848 filed on 4 Jan. 2008 and entitled "System and Method for
Raised Touch Screens", U.S. application Ser. No. 12/319,334 filed
on 5 Jan. 2009 and entitled "User Interface System", U.S.
application Ser. No. 12/497,622 filed on 3 Jul. 2009 and "User
Interface System and Method", which are all incorporated in their
entirety by this reference.
TECHNICAL FIELD
[0003] This invention relates generally to touch sensitive user
interfaces, and more specifically to a new and useful mountable
systems and methods for selectively raising portions of touch
sensitive displays.
BRIEF DESCRIPTION OF THE FIGURES
[0004] FIG. 1 is a top view of the user interface system of a
preferred embodiment.
[0005] FIG. 2 is a cross-sectional view illustrating the operation
of a button array of a first preferred embodiment
[0006] FIG. 3 is a cross-sectional view illustrating the operation
of a button array of a second preferred embodiment.
[0007] FIGS. 4a-4c are cross-sectional views of the retracted,
first stage extended, and second stage extended modes of a first
variation of the second preferred embodiment as applied to a first
variation of the sheet.
[0008] FIG. 5 is a schematic representation of the first variation
of the second preferred embodiment as applied to a second variation
of the sheet.
[0009] FIG. 6 is a schematic representation of the first variation
of the second preferred embodiment as applied to a third variation
of the sheet.
[0010] FIGS. 7a-7d are schematic representations the second
variation of the second preferred embodiment as applied to a fourth
variation of the sheet that includes a different number of first
level cavities and second level cavities.
[0011] FIG. 8 is a schematic representation of the second variation
the second preferred embodiment as applied to a fifth variation of
the sheet that includes a different number of first level cavities
and second level cavities.
[0012] FIG. 9 is a schematic representation of a combination of the
first and second preferred embodiments.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] The following description of the preferred embodiments of
the invention is not intended to limit the invention to these
preferred embodiments, but rather to enable any person skilled in
the art to make and use this invention.
[0014] As shown in FIGS. 1-3, the user interface system 100 of the
preferred embodiments includes a sheet 102 that defines a surface
115 and at least partially defines a first level fluid vessel 127
at a first level within the sheet 102 and a second level fluid
vessel 227 arranged at a second level within the sheet, wherein
both the first and second fluid vessels 127 and 227 are arranged
underneath the surface; a first volume of fluid 112 contained
within the first level fluid vessel 127; and a second volume of
fluid 212 contained within the second level fluid vessel 227. The
user interface system 100 further includes a displacement device
coupled to the first and second fluid vessels 127 and 227 that
selectively manipulates the first and second volumes of fluid 112
and 212, thereby either deforming a first and second particular
region of the surface 113a and 113b, respectively (in the first
preferred embodiment, as shown in FIG. 2) or deforming a particular
region of the surface 115 to a first and second stage, respectively
(in a second preferred embodiment, as shown in FIG. 3). The first
and second stage may differ in height and/or magnitude of the
deformation in the particular region 113 (as shown in FIG. 3), but
may alternatively differ in the surface area of the deformed
particular region, as shown in FIG. 7. Alternatively, the first and
second stage may differ in height difference between a first and
second portion of the surface 115. For example, the first stage may
expand a first particular region to rise above of the surface while
the second stage may deflate a second particular region
substantially adjacent to the first particular region to go below
the surface, increasing the height difference between the first
particular region and the substantially adjacent second particular
region. However, the first and second stage may differ in any other
aspect of the deformed particular region. The user interface system
100 may also include a third level cavity that is preferably
located at a third level within the sheet to achieve a third stage
of deformation of the particular region 113 or to deform a third
particular region 113. In each of the variations of the first,
second, and third level fluid vessels as described above, a portion
of each of the fluid vessels may be arranged along the same plane
within the sheet 102, for example, as shown in FIG. 8. However, the
user interface system may include any other suitable number or
combination of fluid vessels on different height levels and
different locations relative to the surface 115 within the user
interface system.
[0015] The user interface system 100 of the preferred embodiments
has been specifically designed to be attached or appended to the
user interface of an electronic device, more preferably in an
electronic device that utilizes a touch sensitive display as the
main means to receive user input. In this variation, the sheet 102
and the first and second volumes of fluid 112 and 212 preferably
cooperate to allow the transmission of an image from the display
through user interface system 100 without substantial visual
obstruction. The device may be, for example, a laptop computer, a
tablet computer, a mobile phone, a PDA, a personal navigation
device, a remote control, a personal media player, a camera, a
trackpad, a dashboard in a car, or a keyboard. However, the user
interface system 100 may be used with a device that does not
include a display, for example, a steering wheel, a watch, a radio,
or a hand held remote. The user interface enhancement system 100
may, however, be used as the user interface for any suitable device
that interfaces with a user in a tactile and/or visual manner. As
described in U.S. applications Ser. Nos. 11/969,848 and 12/319,334,
the surface 115 of the user interface enhancement system 100
preferably remains flat until tactile guidance is to be given to
the user in the location of the particular region 113. The
displacement device 130 then preferably expands a portion of the
first level fluid vessel 127 and/or the second level fluid vessel
227 to deform the particular region 113 outward, forming a
deformation that may be seen and/or felt by a user, and providing
tactile guidance for the user. The expanded particular region 113
preferably also provides tactile feedback to the user when he or
she applies force onto the particular region 113 to provide input.
Tactile feedback may be in the form of Newton's third law, where an
applied force has an equal and opposite reaction force, but may
alternatively be any other suitable type of tactile feedback.
Alternatively, the displacement device 130 may retract a portion of
the first level fluid vessel 127 and/or the second level fluid
vessel 227 to deform the particular region 113 inward. However, any
other suitable deformation of the particular region 113 may be
used.
[0016] In the preferred embodiments, the first and second fluid
vessels 127 and 227 are preferably substantially identical aside
from the arrangement of the fluid vessel within the sheet 102 and
are preferably of the type of fluid vessel as described in U.S.
applications Ser. Nos. 11/969,848 and 12/319,334. The first and
second fluid vessels 127 and 227 each preferably include at least
one first level cavity 125 and second level cavity 225,
respectively, and the displacement device 130 preferably influences
the volumes of fluid 112 and 212 within the cavities 125 and 225 to
expand and retract the each of the cavities 125 and 225
independently of each other. As shown in FIG. 4, the user interface
system 100 may further include a valve 139 that functions to direct
fluid within the user interface system 100 and preferably
cooperates with the displacement device 130 to manipulate the fluid
within the first and second fluid vessels 127 and 227. In this
variation, the first and second volumes of fluid 112 and 212 may
intermix. Alternatively, as shown in FIG. 6, the displacement
device 130 may include a first displacement device 130a that
functions to manipulate the first volume of fluid 112 and a second
displacement device 130b that functions to manipulate the second
volume of fluid 212. However, any other suitable arrangement of the
displacement device 130 to manipulate the first and second volumes
of fluid 112 and 212 substantially independently of each other may
be used.
[0017] The fluid vessels 127 and 227 may alternatively each include
a first level channel 138 and second level channel 238,
respectively, or a combination of a channel 138 and a cavity 125
and channel 238 and cavity 225. Each of the fluid vessels 127 and
227 may also include a second cavity 125b and 225b in addition to a
first cavity 125a and 225a. The second cavities 125b and 225b are
preferably similar or identical to the cavities 125a and 225a, but
may alternatively be any other suitable kind of cavity. When the
second cavity 125b and/or 225b are expanded, a second particular
region 113 on the surface 115 is preferably deformed. The
displacement device 130 preferably also influences the first volume
of fluid 112 within the second cavity 125b independently of the
first cavity 125a and the second volume of fluid 212 within the
second cavity 225b independently of the first cavity 225a. However,
any other suitable arrangement of the first and second fluid
vessels 127 and 227 and the displacement device 130 may be
used.
[0018] The first and second volumes of fluid 112 and 212 of the
preferred embodiments are preferably substantially similar, for
example, a fluid that is index matched with the sheet to allow an
image to pass through the sheet without substantial visual
obstruction, as described in U.S. applications Ser. Nos. 11/969,848
and 12/319,334. Alternatively, the first and second volumes of
fluid 112 and 212 may be substantially different. For example, one
of the first and second volumes of fluid may be index matched to
the sheet 102 while the other of the first and second volumes of
fluid may be another type of fluid that may not be index matched
but that does not substantially change light that passes through.
For example, in the variation as shown in FIG. 7d, the first volume
of fluid 112 may be air while the second volume of fluid 212 may be
a fluid that is index matched to the sheet 102. In this variation,
the thickness of the first volume of fluid 112 is preferably small
such that the affect on the passage of light through the air is
substantially low and optical distortion is substantially zero.
However, any other suitable type of fluid may be used for the first
and second volumes of fluid 112 and 212.
[0019] The sheet 102 of the user interface system 100 of the first
and second preferred embodiments may be any one of the following
variations or any other suitable combination of the following
variations. In a first variation, as shown in FIGS. 2-4, the sheet
102 may include a substrate 120 that at least partially defines
both the first and second fluid vessels 127 and 227 and a layer 110
arranged above the substrate that defines the surface. The layer
110 may also function to cooperate with the substrate to define at
least one of the fluid vessels 127 and 227. In a second variation,
as shown in FIG. 5, the sheet 102 may include a first substrate 120
that at least partially define the first level cavity 125 and a
second substrate 220 that at least partially define the second
level cavity 225. In a third variation, as shown in FIG. 6, sheet
102 may also include a second layer 210 located in between the
first and second level fluid vessels 127 and 227 (and in between
the first and second substrates 120 and 220 in the second
variation). The user interface system 100 of this variation may
also include a second displacement device 130b that is coupled to
the second level fluid vessel 227 through a second channel 238. The
second layer 210 may function to support the first substrate 120
and/or to partially define the second level cavity 225. The
multiple substrates and/or layers in the second and third
variations may be particularly useful in composing a sheet that
includes a plurality of different materials, for example, materials
with different degrees of pliability to allow for a first and
second particular region to be deformed and/or to allow deformation
of a particular region to a first and second stage.
[0020] In a fourth variation, as shown in FIGS. 7a-7c, sheet 102
includes a first layer 110 and a second layer 210 that
cooperatively define a first level fluid vessel 127. In this
variation, the boundaries of the cavity 125 of the first level
fluid vessel 127 are defined by where the first and second layers
110 and 210 are attached (in other words, at an attachment point
117 as described below) to each other and the cavity 125 is a
location where the first and second layers 110 and 210 are not
attached to each other. The location of the attachment point 117
between the first and second layers 110 and 210 may be
substantially adjacent to the first and second cavities 225a and
225b, as shown in FIGS. 7b and 7c, allowing the first layer no to
follow the shape of the second layer 210 substantially closely.
Alternatively, as shown in FIG. 7d, the location of the attachment
point 117 may be substantially removed from the first and second
cavities 225a and 225b, allowing the first layer 110 to follow the
shape of the second layer 210 substantially loosely. However, any
other suitable location of the attachment point 117 may be used. A
first channel 138 allows fluid to flow into the space in between
the first and second layers 110 and 210 at an unattached location,
expanding the cavity 125. The sheet 102 of the fourth variation may
also include a second substrate 220 that at least partially defines
a second level fluid vessel 227. As shown in FIGS. 7a-7c, the
substrate 120 of this variation may also function to define a
portion of the first fluid vessel 127, such as a first channel 138.
Alternatively, as shown in FIG. 7d, the first level fluid vessel
127 may be substantially fully defined within the space between the
first and second layers 110 and 120 without an additional first
channel 138 defined within the sheet. In this variation, flow of
fluid may be substantially prevented from entering into the space
between the first and second layers 110 and 210, resulting in the
first layer no substantially following the shape of the second
layer 210 (as shown in FIG. 7b). Alternatively, the attachment
between the first and second layers 110 and 210 may include a fluid
inlet that allows fluid from a reservoir or the ambient environment
(such as air) to enter into the space between the first and second
layers 110 and 210, allowing the first layer 110 to move with the
second layer 210 without substantially following the shape of the
second layer 210, as shown in FIG. 7d. This variation may
alternatively thought of as including a passive displacement device
130 that allows fluid flow into and out of the space between the
first and second layers 110 and 210 when there is a pressure
difference between a reservoir and/or the ambient environment and
the space between the first and second layers 110 and 210. However,
any other suitable arrangement of the fluid flow between the first
and second layers 110 and 210 of this fourth variation may be
used.
[0021] In a fifth variation, as shown in FIG. 8, a portion of
second layer 210 may function to define a second surface 215. The
second surface 215 may be substantially planar to the surface 115,
but may alternatively be on a substantially different plane.
However, any other suitable combination of layers, substrates,
and/or displacement devices may be used. The layer 110 in the above
variations is preferably of an elastic material as described in
U.S. applications Ser. Nos. 11/969,848 and 12/319,334. The
substrate 120 is preferably also of the material as described in
U.S. applications Ser. Nos. 11/969,848 and 12/319,334, but may
alternatively be any other suitable type of material or combination
of materials.
[0022] In the above variations, the sheet 102 may also include a
support portion, as shown in FIGS. 3 and 7, that functions to
support the surface 115 and to substantially prevent inward
deformation of the surface 115. In particular, in the variation of
the sheet 102 with a layer 110, the support portion functions to
substantially prevent the layer 110 from depressing into the fluid
vessel 127 and/or 227 and to provide a substantially flat surface
for the user. The support portion preferably includes fluid outlets
116 that allow fluid to pass through to deform the particular
region 113. The support portion may be integrated into the
substrate 120 and/or substrate 220, or may alternatively be a
support layer that is separate from both the substrate 120 and/or
substrate 220 and the layer 110. In this variation, the support
layer is preferably arranged in between the layer 110 and the
substrate 120 and/or substrate 220. However, any other suitable
type and arrangement of the support portion may be used.
[0023] In the above variations, the layer 110 is preferably
attached to the substrate 120 (or support layer) at an attachment
point 117 that at least partially defines the size and/or shape of
the particular region 113. In other words, the attachment point 117
functions to define a border between a deformable particular region
113 of the surface 115 and the rest of the surface 115 and the size
of the particular region 113 is substantially independent of the
size of the cavity 124 and/or the channel 138. The attachment point
117 may be a series of continuous points that define an edge, but
may alternatively be a series of non-continuous points. The
attachment point 117 may be formed using, for example, adhesive,
chemical bonding, welding, or any other suitable attachment
material and/or method. The method and material used to form the
attachment point 117 is preferably of a similar optical property as
the layer 110 and the substrate 120, but may alternatively be of
any other optical property. Other portions of the layer 110 and
substrate 120 not corresponding to a particular region of the
surface 113 may also be adhered using similar or identical
materials and methods to the attachment point 117. Alternatively,
the layer 110 and substrate 120 may be left unattached in other
portions not corresponding to a particular region of the surface
113. However, the sheet 102 may be arranged in any other suitable
manner.
[0024] The second layer 210, second substrate 220, second
displacement device 130b, and second channel 238 are preferably of
the same type as the layer 110, substrate 120, displacement device
130, and channel 138, respectively. The second substrate 220, the
second layer 210, and the second displacement device 130b may,
however, have different characteristics from the substrate 120, the
layer 110, and the displacement device 130. For example, the second
substrate 220 may be of a different elasticity from the substrate
120, the second layer 210 may be of a different material than the
layer 110 (for example, one that is better suited to support the
substrate 120), the second displacement device 130b may have
different pressure ranges or displace a different range of fluid
than the displacement device 130, and the second channel 238 may be
of a different diameter than the channel 138. However, the second
substrate 220, the second layer 210, and the second displacement
device 130b may also be substantially different from the substrate
120, the layer 110, and the displacement device 130
respectively.
[0025] As described above and shown in FIG. 2, the displacement
device 130 of the first preferred embodiment functions to
manipulate the volumes of fluid within the first and second level
fluid vessels 127 and 227 to deform a first and second particular
region of the surface 113a and 113b. This first preferred
embodiment is particularly useful in providing an increased density
of deformed particular regions 113 to the user interface system
100. For example, the expandable regions of the first level fluid
vessel 127 may have a limit to how close they may be to each other
along the first level fluid vessel 127. By arranging a second level
fluid vessel 227 that is substantially identical to the first level
fluid vessel 127 at a level that is substantially different from
the first level fluid vessel 127 and arranging the expandable
regions of the second level fluid vessel 227 to be staggered with
those of the first level fluid vessel 127, the density of the
resulting deformed particular regions 113 may double. The second
level fluid vessel 227 is preferably arranged at a level below the
first level fluid vessel 127. In this variation of the first
preferred embodiment, the second level fluid vessel 227 functions
to deform a substantially thicker section of the sheet 102 to
produce a deformed particular region 113b than the first level
fluid vessel 127. The displacement device 130 may function to
deform the deformable portion of the second level fluid vessel 227
to a higher degree than the first level fluid vessel 127 to result
in a deformed particular region 113b that is substantially similar
to the deformed particular region 113a. Alternatively, the portion
of the sheet 102 directly above the deformable portion of the
second level fluid vessel 227 may be of a material that is
substantially more pliable than the portion of the sheet 102
directly above the deformable portion of the first level fluid
vessel 127. However, any other suitable arrangement of the sheet
102 may be used.
[0026] As described above, the displacement device 130 of the
second preferred embodiment functions to manipulate the volumes of
fluid within the first and second level fluid vessels 127 and 227
to deform a particular region 113 of the surface to a first and
second stage. In a first variation of the second preferred
embodiment, the second stage of deformation may be different from
the first stage of deformation in height; for example, the height
of deformation is higher relative to the surface 115 in the second
stage than in the first stage, as shown in FIGS. 3-6. In a second
variation, as shown in FIG. 7, the width of the deformation is also
different in the second stage; in particular, the width is wider in
the second stage than in the first stage. Here, the second stage of
deformation may be thought of as merging the individual expansions
of the first stage of deformation, thus bridging the gap between
two individually deformed particular regions of the surface 113.
However, the second stage of deformation may be different from the
first stage of deformation in any other suitable way. The
displacement device may expand the first level cavity 125 (or any
other suitable portion of the first level fluid vessel 127) first
to achieve a first stage of deformation in the particular region
113 and then expand the second level cavity 225 (or any other
suitable portion of the second level fluid vessel 227) to achieve a
second stage of deformation of the particular region 113, but may
alternatively expand the first level cavity 125 first to achieve
the first stage of deformation and then expand the second level
cavity 125 to achieve the second stage of deformation, as shown in
FIGS. 4b, 4c and 7. Additional variation of deformation may be
achieved by varying the volume of fluid that is displaced to the
first and second level cavities 125 and 225 by the displacement
device 130. However, any other suitable sequence of expansion may
be used.
[0027] As shown in FIGS. 4a-4c, in the first variation of the
second preferred embodiment as applied to the first variation of
the sheet 102, the second level cavity 225 may be expanded to
provide a first stage of deformation to the particular region 113.
The expansion of the second level cavity 225 preferably deforms the
substrate 120 internally, and the deformation of the substrate 120
preferably translates into a deformation of the bottom of the first
level cavity 125 (shown in FIG. 4b). The volume of fluid contained
within the first level cavity 125 is preferably substantially
incompressible and of a constant volume, allowing deformation of
the bottom of the first level cavity 125 to cause deformation of
the layer 110 and deforming the particular region of the surface
113. The cumulative pressure necessary to deform the substrate 120
internally as well as deform the layer 110 (more specifically, the
particular region 113) is preferably less than the pressure
necessary to deform the bottom of the second level cavity 225 to
allow the expansion of the second level cavity 225 to deform the
particular region 113 and not to deform the bottom of the second
level cavity 225. Additionally, the pressure necessary to deform
the substrate 120 internally is preferably higher than the pressure
provided by a user during use of the user interface system 100 to
provide a surface 115 that feels flat to the user unless a cavity
125/225 is deformed. To achieve the second stage of deformation of
the particular region 113, the first level cavity 125 is preferably
expanded, providing additional deformation of the particular region
113 (shown in FIG. 4c). Similar to the pressure balance with regard
to the expansion of the second level cavity 225, the pressure
necessary to further deform the particular region 113 is preferably
less than the cumulative pressure necessary to deform the bottom of
the first level cavity 125, the substrate 120 internally, and the
bottom of the second level cavity 225 to allow the expansion of the
first level cavity 125 to further deform the particular region 113
and not to deform the bottom of the first level cavity 125.
Alternatively, the first level fluid cavity 125 may be deformed to
achieve the first stage of deformation and the second level fluid
cavity 225 may be deformed to achieve the second stage of
deformation. However, any other sequence in the first and second
stage deformation may be used.
[0028] As shown in FIGS. 7a-7d, in the second variation of the
second preferred embodiment as applied to the fourth variation of
the sheet 102, the second level cavity 225 may be expanded to
deform both the first and second layers 110 and 210 to achieve the
first stage of deformation. To achieve the second stage of
deformation of the particular region 113, the first level cavity
125 is preferably expanded, providing additional deformation of the
particular region 113. In the variation as shown in FIG. 7c, the
additional deformation of the particular regions 113 results in a
larger deformation of a particular region 113a. Similar to the
pressure balance as described above, the pressure necessary to
further deform the particular region 113a is preferably less than
the cumulative pressure necessary to deform the bottom of the first
level cavity 125 (in other words, the second layer no) and the
bottom of the second level cavity 225 to allow the expansion of the
first level cavity to further deform the particular region 113a and
not to deform the bottom of the first level cavity 125.
[0029] The second level fluid vessel 227 may be arranged
substantially underneath the first level fluid vessel 127. In this
variation, the distance in height along the sheet 102 between the
top of the second level fluid vessel 227 and the bottom of the
first level fluid vessel 127 is preferably determined by the
desired pressure necessary to deform the particular region 113 to
the first stage by the expansion of the second level fluid vessel
227 and the desired resistance to deformation from the expansion of
the first level fluid vessel 127 to achieve the second stage of
deformation. However, the distance in height may be determined
using any other suitable means.
[0030] As shown in FIGS. 3-6, the number of deformable portions of
the first level fluid vessel 127 (for example, first level cavities
125) is preferably equal to the number of deformable portions of
the second level fluid vessel 227 (for example, second level
cavities 225). More specifically, there is preferably one second
level cavity 225 that is substantially adjacent (for example,
directly above or diagonally above) to each first level cavity 125.
However, as shown in FIGS. 7 and 8, the number of first and second
level cavities 125 and 225 may be different. For example, as shown
in FIGS. 7a-7c, there may be two second level cavities 225 for each
first level cavity 125. As shown in FIG. 7b, as each of the second
level cavities 225 is expanded, the corresponding particular
regions 113 are deformed, achieving a first stage of deformation.
The first level cavity 125 is then expanded to achieve a second
level of deformation of a larger particular region 113a. In the
variation as shown in FIG. 7, the second level cavities 225 are
preferably placed symmetrically relative to the first level cavity
125, and both second level cavities 225 are preferably expanded
prior to the expansion of the first level cavity 125 to achieve a
substantially level second stage deformation of the particular
region 113a. Alternatively, only one of the second level cavities
225 may be expanded prior to expansion of the first level cavity
125 if a non-level deformation of the particular region 113a is
desired. Yet alternatively, only the first level cavity 125 may be
expanded. However, any other suitable arrangement of expansions of
first and second level cavities 125 and 225 may be used. In this
variation, as mentioned above, the second level of deformation
preferably varies from the first level of deformation in both
height and width. In the variation as shown in FIGS. 7b and 7c, the
total width of the second stage of deformation of the particular
region 113a spans the distance between the two second level
cavities 225 while the first stage of deformation of the particular
region 113 is of a width substantially similar to the width of each
first level cavity 125. However, the first and second stages of
deformation of the particular region 113 in this variation may
differ in any other suitable way. In a second example, as shown in
FIG. 8, the user interface system may include a second layer 210
that functions to define a second surface 215 and to partially
define an additional second level cavity 225. The second surface
215 is preferably substantially adjacent to the surface 115, and
preferably substantially planar to the surface 115, but may
alternatively be of any suitable arrangement relative to the
surface 115. The additional second level cavity 225 may function to
deform a second particular region 213 on the second surface 215.
This arrangement provides the user interface system 100 with a
particular region 113 capable of two stages of deformation and a
second particular region 213 capable of one stage of deformation.
Similarly, additional variation in deformation of the particular
region 113 and the second particular region 213 may be achieved by
varying the volume of fluid displaced to the cavities by the
displacement device 130.
[0031] The user interface system 100 is preferably one of the
embodiments and variations as described above. However, the user
interface system 100 may be a combination of any of the above
embodiments and variations. For example, as shown in FIG. 9, the
first and second embodiments may be combined. In the central
portion of the sheet 102, the first and second fluid vessels 127
and 227 may cooperate to deform a particular region 113 into a
first and second stage. In the left and right regions of the sheet
102, the first and second fluid vessels 127 and 227 may cooperate
to increase the density of the deformable particular regions 113 of
the surface. However, any other suitable combination of the above
embodiments and variations as described above may be used.
Similarly, any other suitable arrangement of a first level fluid
vessel 127 located at a first level within the sheet 102 and a
second level fluid vessel 227 located at a second level within the
sheet 102 may be used.
[0032] As a person skilled in the art will recognize from the
previous detailed description and from the figures and claims,
modifications and changes can be made to the preferred embodiments
of the invention without departing from the scope of this invention
defined in the following claims.
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