Snap on window covering

Abstract

A snap on window covering is described. The window covering includes a first rail, a second rail, and a fabric that couples the first and second rails. The first rail includes a clip interface configured to enable attachment to a tension rod configured to be mounted between opposing first and second side jambs of an interior window frame. In another aspect, a window shade system includes the window covering and may further include the tension rod. In still another aspect, a method for configuring a window shade system is provided. The method includes mounting a tension rod between opposing first and second side jambs of an interior window frame, cutting to a shorter width a window covering having a first rail, a second rail, and a fabric that couples the first and second rails, and clipping the cut window covering to the tension rod by a clip interface.

Description

SNAP ON WINDOW COVERINGInventor(s): Andrew E. Einaudi

[0001] This application claims priority to U.S. Provisional Application No. 63 / 671,972, filed July 16, 2024, which is incorporated by reference herein in its entirety.BACKGROUND

[0002] Window shades are an effective way to provide privacy, block out light and heat or insulate from heat loss. Despite there being some standard sizes for windows, the window boxes, window moldings and window openings that windows sit inside have a lot of variation in size and dimension. Therefore, the fabric to cover a window often requires a custom width to perform the job of adequately blocking the light or looking proper aesthetically - especially for blackout shades. Custom shade rods and fabric widths are either trimmed in factory, instore at large cutting machines or at home with hacksaws and scissors which is prone to errors and / or injury.

[0003] Buildings consume 36% of global energy' and nearly three-quarters of that energy' is spent on heating and cooling. Typically, the number one source of energy loss in buildings is windows. Window coverings such as roller shades, cellular shades, zebra blinds, horizontal blinds and others can be an effective way to reduce energy waste. However, according to a Lawrence Berkeley Lab study, the most common type of window coverings, those which are manually operated, have on average no effect on heating & cooling consumption versus windows without coverings. Dynamic automated shading can make a real difference, though, by adjusting to changing conditions and optimizing energy' use, thereby reducing energy' waste.

[0004] Typical dynamic shading systems rely on sensors such as light, heat, humidity, user occupancy and others to make decisions about when to raise or low er a window treatment for maximum benefit. Most often, these sensors are maintained separately and / or battery powered such that installation, maintenance, communication, and power failures can hinder optimum operation of the dynamic shading system.SUMMARY

[0005] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0006] Systems, methods, and apparatuses are described herein for a snap on window covering. In an aspect, the window covering includes a first rail, a second rail, and a fabric that couples the first and second rails. The first rail includes a clip interface configured to enable attachment to a tension rod configured to be mounted between opposing first and second side jambs of an interior window frame.

[0007] In another aspect, a window shade system includes the window covering and may further include the tension rod.

[0008] In still another aspect, a method for configuring a window shade system is provided. The method includes mounting a tension rod between opposing first and second side jambs of an interior window frame, cutting to a shorter width a window covering having a first rail, a second rail, and a fabric that couples the first and second rails, and clipping the cut window covering to the tension rod by a clip interface of the cut window covering.

[0009] Further features and advantages of the embodiments, as well as the structure and operation of various embodiments, are described in detail below with reference to the accompanying drawings. It is noted that the claimed subject matter is not limited to the specific embodiments described herein. Such embodiments are presented herein for illustrative purposes only. Additional embodiments will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein.BRIEF DESCRIPTION OF THE DRAWINGS / FIGURES

[0010] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the embodiment and to enable a person skilled in the relevant art(s) to make and use the embodiments.

[0011] FIG. 1 depicts an interior window frame in detail indicating common naming conventions for window frame components.

[0012] FIG. 2a depicts an inside mounted window covering in a completely open state. In the case of a “distributed smart rail system”, this is also considered to be the docking position when the smart rail can charge to the window covering’s rechargeable motor battery due to its proximity to the bracket 110 and dongle interface 202.

[0013] FIG. 2b depicts an inside mounted window covering in a partially open / closed state. In the case of a “distributed smart rail system”, this is also considered to be the non-docking position when the smart rail is unable to charge to the window covering’s rechargeable motor battery due to its loss of proximity to the bracket 110 and dongle interface 202.

[0014] FIG. 2c depicts an inside mounted window covering in a completely closed state. In the case of a “distributed smart rail system”, this is also considered to be the non-docking position when the smart rail is unable to charge to the window covering’s rechargeable motor battery7due to its loss of proximity to the bracket 110 and dongle interface 202.

[0015] FIG. 3a depicts a tension rod, according to an embodiment.

[0016] FIG. 3b depicts a perspective view of a tension rod, according to another embodiment.

[0017] FIG. 4a depicts a cross-sectional end view of a window covering, according to an embodiment.

[0018] FIG. 4b depicts top edge and top perspective views of the window covering shown in Fig. 4a in a closed position, according to an embodiment.

[0019] FIG. 4c depicts an inner perspective view of an open window covering, according to the embodiment.

[0020] FIG. 4d depicts an outer perspective view of an open window covering shown in FIG. 4c.

[0021] FIG. 4e depicts a side view of the closed window covering shown in FIG. 4b.

[0022] FIG. 4f depicts side views of the closed window shown in FIG. 4b and FIG. 4e covering prior to clipping to a tension rod and after clipping to the tension rod, according to embodiments.

[0023] FIG. 4g depicts perspective views of cutting mechanism in position to cut first and second ends of a window covering, respectively, according to embodiments.

[0024] FIG. 4h depicts side views of the closed window covering shown in FIG. 4g prior to and after having first and ends removed.

[0025] FIG. 4i depicts a perspective view of a closed window covering similar to that shown in FIG. 4f with end caps being attached, according to an embodiment.

[0026] FIG. 4j depicts perspective views of a closed window covering similar to that shown in FIG. 4f with a solar panel being attached and a coded badge being attached, respectively.

[0027] FIG. 4k depicts a user interface device capable of setting a bottom limit for a window covering, that can be used for any embodiment.

[0028] FIG. 5 depicts smart rail microcontroller with labeled inputs / outputs for decision making and control operation of a microcontroller of a window covering system, that can be used for any embodiment.

[0029] The features and advantages of the embodiments described herein will become more apparent from the detailed description set forth below when taken in conjunction with the drawings, in which like reference characters identify corresponding elements throughout. In the drawings, like reference numbers generally indicate identical, functionally similar, and / or structurally similar elements. The drawing in which an element first appears is indicated by the leftmost digit(s) in the corresponding reference number.DETAILED DESCRIPTIONI. Introduction

[0030] The following detailed description discloses numerous example embodiments. The scope of the present patent application is not limited to the disclosed embodiments but also encompasses combinations of the disclosed embodiments, as well as modifications to the disclosed embodiments.

[0031] Terms and phrases used in this document, and variations thereof, unless otherwise expressly stated, should be construed as open ended as opposed to limiting. As examples of the foregoing: the term “including” should be read as meaning “including, without limitation” or the like; the term “example” is used to provide exemplary instances of the item in discussion, not an exhaustive or limiting list thereof; the terms “a” or “an” should be read as meaning “at least one,” “one or more” or the like; and adjectives such as “conventional,” “traditional,” “normal,” “standard,” “known” and terms of similar meaning should not be construed as limiting the item described to a given time period or to an item available as of a given time, but instead should be read to encompass conventional, traditional, normal, or standard technologies that may be available or known now' or at any time in the future.

[0032] References in the specification to "one embodiment," "an embodiment," "an example embodiment," or the like, indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of persons skilled in the relevant art(s) to implement such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0033] In the discussion, unless otherwise stated, adjectives such as “substantially’7and “about” modifying a condition or relationship characteristic of a feature or features of an embodiment of the disclosure, are understood to mean that the condition or characteristic is defined to within tolerances that are acceptable for operation of the embodiment for an application for which it is intended.

[0034] Furthermore, it should be understood that spatial descriptions (e g., “above,” “below,” “up,” “left,” “right,” “down,” “top,” “bottom,” “vertical,” “horizontal,” etc.) used herein are for purposes of illustration only, and that practical implementations of the structures and drawings described herein can be spatially arranged in any orientation or manner. Additionally, the drawings may not be provided to scale, and orientations or organization of elements of the drawings may ary in embodiments.

[0035] As used herein, the term “w indow covering” refers to a window7shade or window blind configured to screen a window thereby achieving similar results to those obtained by fitting curtains, including reducing an amount of light incoming through the window into a room. A window covering is typically sized to substantially the same width and height as the window to which it is applied. Window7blinds may have vary ing thermal effects, such as blocking unwanted heat of the sun in warmer weather and maintain room heat in colder weather. A window covering may also provide privacy to a room from outside onlookers.

[0036] As used herein, the term “fabric” refers to the screening material of a window covering. The fabric may be rolled up or configured accordion style. Example materials of the fabric include cotton, polyester, wool, viscose, and silk.

[0037] As used herein, the term “interior window frame” refers to the side of a window frame interior to a dwelling (e.g.. a room, a home, an office, a retail space, etc.) for a window frame affixed in a wal I of the dwelling. The term “inside mount window covering” refers to a window covering mounted within a window frame. The term “outside mount window covering” refersto a window covering mounted to or outside the window frame, such as being mounted to the wall above the window frame or the head casing of the window frame. The term “outside facing view.” when used with respect a smart rail, refers to a side of the smart view that faces toward the exterior of a dwelling (e.g., through the window) when affixed to a window covering as described herein. The term “inside facing view,” when used with respect a smart rail, refers to a side of the smart view that faces toward the interior of a dwelling when affixed to a window covering as described herein. The term “completely open” with reference to a window covering refers to the window covering being fully retracted. In a completely open position, light may pass through substantially the entire window (e.g.. the glass panes) associated with the window covering without being impeded by the window covering. The term “completely closed” with reference to a window covering refers to the window covering being fully extended. In a completely closed position, light is impeded from passing through substantially all of the associated window.

[0038] Numerous exemplary embodiments are described as follows. It is noted that any section / subsection headings provided herein are not intended to be limiting. Embodiments are described throughout this document, and any type of embodiment may be included under any section / subsection. Furthermore, embodiments disclosed in any section / subsection may be combined with any other embodiments described in the same section / subsection and / or a different section / subsection in any manner.II. Example Embodiments for Snap On Window Covering

[0039] Window coverings are an effective way to block out light and heat or insulate from heat loss and save energy. Dynamic shade systems maximize savings by using sensor data to make intelligent decisions. However, most commonly these sensor systems, microcontrollers and power systems have been separated which leads to high cost, installation, maintenance and troubleshooting problems. Furthermore, despite there being standard sizes for windows, the windows boxes, window- moldings and window openings that windows sit inside have a lot of variation in size and dimension. The fabric to cover a window often requires a custom width to adequately block incoming light or to appear proper aesthetically - especially for blackout shades. Custom shade rods and fabric widths are either trimmed in factory, in-store at large cutting machines or at home with hacksaw-s and scissors which is prone to errors and / or injury.Furthermore, the process of assembling a window covering to be applied to a window frame is unwieldy.

[0040] Embodiments disclosed herein overcome these issues. In particular, a snap on window covering is disclosed herein that is easily sized for a window frame and easily mounted to the window frame. A mounting rod (also known as ‘'mounting bar”) such as a tension rod (also known as “tension bar”) may be installed in a window- frame. The tension rod is a horizontally extending rod (e.g., with circular or rectangular cross-section) that adheres in place in a window frame at least due to a horizontal outward force applied by the tension rod against opposing surfaces (e.g., side jambs) of the window frame. In an embodiment, the mounting rod includes a measurement mechanism, such as one or more measurement indications, that may be read to determine a current width of the tension rod mounted in place. A snap on window7covering may then be cut to match the determined width of the tension rod. Furthermore, the snap on window covering includes a clip interface that is configured to clip onto the tension rod such that it hangs in place over the window? of the window frame. In this manner, the window covering is easily configured and installed, and provides its shading functionality to the window7. These and further benefits of the disclosed embodiments are described as follow s.

[0041] In particular, FIG. 1 depicts an interior window frame in detail comprising a head casing 101, first and second side jamb extensions 102 (also referred to as first and second side jams), a head jamb extension 103, a side casing 105, windowsill (“sill”) 106, and glass panes 107 combining to create the window 100 structure and surrounded by w all 104 area. Head casing 101, sidejamb extension 102, head jamb extension 103, wall 104, and in some cases side casing 105, all provide suitable mounting locations for window coverings. The sill 106 is often the logical limit for inside mount window coverings which will be discussed later.

[0042] FIG. 2a illustrates an inside mount window? covering applied to the interior window frame of FIG. 1 , according to an example embodiment. As shown in FIG. 2a, the inside mount window covering includes a top (or “head”) rail 111 and a bottom rail 201. Top rail 111 is connected between side jamb extensions 102 at first and second mount positions 110. In this open position, the bottom rail 201 outside facing sensors and / or solar panel may be partially or completely unable to collect data and / or solar charge but inside facing sensors will work.

[0043] FIG. 2b illustrates the inside mount window of FIG. 2a in a partially opened / closed position, where bottom rail 201 is partially lowered between head jamb extension 103 and silloptimize position to collect data and / or solar charge and inside facing sensors will work continue to work well.

[0044] FIG. 2c illustrates the inside mounted window covering of FIGS. 2a and 2b completely closed. In this closed position, the bottom rail 201 outside facing sensors and / or solar panel may be partially or completely unable to collect data and / or solar charge but inside facing sensors will work, depending on the height of the sill 106 relative to the opening of the glass panes 107. It is worth noting that inside mount window coverings often achieve the best insulative properties compared to other mounting methods. In the case of a very tight fit and good seal, comparing the inside and outside sensor readings may provide a powerful tool to determine the exact insulative value of the window covering.

[0045] FIG. 3a depicts a tension rod, according to an embodiment. As shown in FIG. 3a, the tension rod includes a tension rod outer end cap 301. a tension rod lock 302, a tension rod outer extrusion 303, an integrated level 304, one or more tension rod markings 305, a tension rod inner end cap 306, a tension rod inner extrusion 307, and a tension rod viewfinder 308. One or more of these features may be present in tension rod embodiments. These features of the tension rod are described as follows.

[0046] As shown in FIG. 3a, outer extrusion 303 fits over at least a portion of inner extrusion 307 to form the length of the tension rod. Inner extrusion 307 may adjustably slide in and out of outer extrusion 303 to change an overall length of the tension rod. Outer end cap 301 is coupled (e.g., fitted over) an end of outer extrusion 303, and inner end cap 306 is coupled (e.g., fitted over) an end of inner extrusion 307. Outer and inner end caps 301 and 306 interface the tension rod with respective mounting positions (e.g., opposing jambs of a window frame), and have mounting surface sizes configured to stably mount the tension rod in the window frame.

[0047] Tension rod lock 302 is a locking mechanism that locks the tension rod at a length selected by sliding outer and inner extrusions 303 and 307 relative to each other, thereby enabling the tension rod to be locked in the retracted position or expanded position. For instance, tension rod lock 302 may be a threaded screw interface which when fully tightened activates the interior spring of the tension rod to achieve maximum spring force to hold tension rod in place.

[0048] Integrated level 304 is a level device mounted to / in the tension rod that is configured to indicate (to a user) an orientation of the tension rod relative to horizontal. For instance, integrated level 304 may be a bubble level that is a tube filled, incompletely, with a liquid, such as a colored spirit or alcohol, thereby leaving a bubble in the tube. A bubble level has a slightupward curve, so that the bubble naturally rests in the tube center, the highest point. At slight inclinations the bubble travels away from the marked center position. In other embodiments, other types of integrated level 304 may be present.

[0049] Markings 305 are measurement indications configured to indicate a distance between the first and second side jambs (also, between the opposing mounting surfaces of end caps 301 and 306) between which the tension rod is mounted. The measurement indications may include one or more of marking lines, one or more colors, and / or one or more alphanumeric characters that indicate / correspond to distances in centimeters, inches, feet, etc.).

[0050] Viewfinder 308 is configured to provide a measurement of the length of the tension rod in a retracted or expanded position. For instance, in an embodiment, viewfinder 308 may be a tinted lens area overlaid the number section of the markings 305 or viewfinder 308 may be printed arrows clearly indicating where to make a reading on markings 305.

[0051] FIG. 3b depicts a perspective view of the tension rod of FIG. 3a. according to an embodiment. As shown in FIG. 3b, one or both of end caps 301 and 306 may include one or more screw holes 309. Screw holes 309 enable the securing of the mounting of the tension rod to the first and second opposing surfaces (e.g., window frame side jambs) by corresponding screws.

[0052] According to embodiments, a window covering may be attached to the tension rod of FIGS. 3a and 3b when the tension rod is installed in a window frame. For instance, FIGS. 4a- 4e show vary ing views of example window coverings that may be attached to a tension rod, in embodiments. FIGS. 4a-4e are described as follows.

[0053] For example, FIG. 4a depicts a cross-sectional side end of a window covering, according to an embodiment. As shown in FIG. 4a, the window covering includes a top (first) rail 401, a clip lock 402, a clip 403, a fabric 404, a bottom (second) rail 405, a motor / battery / spools 406, a solar panel 408, and a light bar 409. These features of the window covering of FIG. 4a are further described as follows.

[0054] The window covering of FIG. 4a generally includes top rail 401 and bottom rail 405 coupled together by fabric 404 therebetween. Top rail 401 and bottom rail 405 are generally elongated structures (e g., made of metal, plastic, etc.) that provide rigid structure along the top and bottom edges of the window covering.

[0055] In the example of FIG. 4a, fabric 404 is configured accordion style (also known as pleated shades / blinds or cellular shades / blinds) such that fabric 404 includes a series of collapsable, air-filled structures, or cells, that may be expanded or collapsed (opened or foldedinto themselves) by correspondingly increasing or decreasing the distance between top and bottom rails 401 and 405 (opening or closing the window covering), thereby allowing the window covering to cover more or less of the window against which the window covering is applied.

[0056] One or more additional components (e.g., a motor, one or more clips, a battery, a solar panel, a light) may be included in one or both of top and bottom rails 401 and 405 to provide further functionality to the window covering. For example, as shown in FIG. 4a, bottom rail 405 may include one or more of a motor / battery / spools 406. A motor, when present, enables the automatic opening and closing of the window covering, as controlled by a user interface such a push button, a draw string / rod, an application in an electronic device (e.g., a smart phone, a virtual assistant, etc.). A battery7(rechargeable or disposable) w hen present, may store energy7for use by the motor, a processor of the window covering, a light of window covering (e.g., light bar 409), and / or other electrical feature of the window covering.

[0057] Solar panel 408 is configured to convert received light (e g., sunlight) to electricity that is stored in a rechargeable battery7of top rail 401 and / or bottom rail 405. For instance, solar panel 408 may be installed on / in a surface of a rail that faces outside of a room, such as toward the sun, to receive light and generate electricity therefrom for storage in the rechargeable battery. Solar panel 408 may include any suitable ty pe and number of solar cells, as would be known to persons skilled in the relevant art(s).

[0058] Light bar 409, when present, is a light emitter powered by the battery7. Light bar 409 is configured to illuminate fabric 404 to simulate one or more of lighting internal to a dwelling (e.g.. a standing lamp, a desk light, an overhead light), activity in the dwelling (motion of persons relative to light sources), or media playback (e.g., light emitted from a television or computer screen) in the dwelling. In this manner, light bar 409 can provide enhanced security for the dwelling by giving the appearance the dwelling is currently occupied, even if there are no occupants present. Light bar 409 may include one or more of any suitable type of light emitters / sources, including light emitting diodes (LEDs), liquid crystal displays (LCDs), incandescent lights, etc. LEDs and LCDs may be manufactured for small size convenient for attachment to a rail.

[0059] As shown in FIG. 4a, the window covering includes one or more clips 403 and one or more clip locks 402. A clip 403 is a clip interface configured to enable attachment of top rail 401 of the window covering to a tension rod mounted to an interior window frame. F or instance, as shown in FIG. 4a, clip 403 may have a circular cross section (receptacle) for receiving atension rod having a circular cross section. Clip 403 may be made of metal, carbon fiber, plastic or any strong material that can flex and hold weight. Clip 403 may also be coated in rubber or plastic to ensure good fit. Clip 403 has a gap at top of top rail 401 through which the tension rod may pass to be fitted into the circular receptacle of clip 403. First and second end portions of clip 403 may be spaced apart by a width less than a cross-sectional width of the tension rod, may spread apart when the tension rod passes between them, and then may pinch / spring back to their original spacing, or close thereto, to hold the tension rod in place in clip 403.

[0060] Furthermore, clip lock 402 is a clip locking mechanism that may be present. When present, clip lock 402 may be actuated to further lock the tension rod in the receptacle of clip 403. In one example, clip lock 402 may be achieved by inserting a pin into the top rail 401 above the clip to prevent the top rail from failing if clip 403 should fail. Clip lock 402 may also be achieved by a sliding mechanism which prevents the clip from being able to open after the tension rod has been installed keeping the tension rod clipped in place.

[0061] FIG. 4b depicts top edge and top perspective views of the window covering of FIG.4a in closed positions, according to embodiments. As show n in both views of FIG. 4b, three clips 403 are included in top rail 401 to coupling with a tension rod to which the window covering is affixed. In embodiments, any number of clips 403 may be present, such as one, two. five, ten, etc., and such clips may have any suitable width. For instance, a single clip may be present that has a width substantially equal to the width of top rail 401. A first inset image in FIG. 4b shows an example cross-sectional view of a clip 403, and a second inset image in FIG. 4b shows a perspective view of an example clip 403, which has a clip segment (for clipping to a tension rod) positioned between bracket segments (e.g.. for attachment to top rail 401, such as by one or more screws, an adhesive, etc.).

[0062] FIG. 4c depicts an inner perspective view of the window covering of FIG. 4a, according to an embodiment. In FIG. 4c, the inner side (facing into the dwelling) of the window covering is shown, and the window covering is in an at least partially open configuration (e.g., the fabric is expanded).

[0063] FIG. 4d depicts an outer perspective view of the window covering of FIG. 4a, according to an embodiment. In FIG. 4d, the outer side (facing out of the dwelling, through the window) of the window covering is shown, and the window covering is in an at least partially open configuration (e.g., the fabric is expanded). Furthermore, an example solar panel attached to the bottom rail is shown.

[0064] FIG. 4e depicts a cross-sectional side view of the closed window covering of FIG. 4a, according to an embodiment. As shown in FIG. 4e, the window7covering includes top rail 401, a clip lock 402, three clips 403. fabric 404, bottom rail 405. motor / battery / spools 406, solar panel 408, and light bar 409.

[0065] Accordingly, the window7covering of FIGS. 4a-4e may be configured and connected to the tension rod of FIGS. 3a and 3b to form a window7shade system mounted in a window frame to provide shading and corresponding functionality7, as described herein. An example of such a process is described as follows with respect to FIGS. 4f-4k.

[0066] In a first step, a tension rod is mounted between opposing first and second side jambs of an interior window frame. For instance, the tension rod of FIGS. 3a-3b may be mounted between the first and second opposing side jamb extensions 102 of the window frame of FIGS. 1 and 2a-2c. The tension rod may be expanded to fit the gap between side jambs by extending the outer and inner extrusions 303 and 307 relative to each other, which forces end caps 301 and 306 against the opposing extensions 102, and then locking the tension rod length using tension rod lock 302 (in the expanded position). The tension rod may then be left in place.

[0067] During and / or after the mounting, a level indication may be provided by integrated level 304, which may be used by an installer to make sure tension rod is set in a suitably accurate horizontal orientation. A measurement of the length of the tension rod in a retracted or expanded position may be provided by viewfinder 308. The mounting to the first and second side jamb extensions 102 may be further secured at screw7holes 309 of the tension rod by corresponding screws.

[0068] In a further step, the window covering is clipped to the tension rod by a clip interface of the cut window covering. For instance, FIG. 4f depicts side views of a closed window covering prior to clipping to a tension rod and after clipping to the tension rod, according to embodiments. As shown in the left side of FIG. 4f, the top rail of the window covering is moved toward the mounted tension rod. As shown in the right side of FIG. 4f, the top rail of the window covering is clipped to the tension rod, thereby hiding the tension rod from view. In this manner, a mounted window shade system is formed that is easy and convenient to clip into place due to the inclusion of the clipping mechanism (e g., clips) of the top rail of the window covering.

[0069] Note that in an intermediate step, the w indow covering may be cut to a shorter width in order to fit into the window frame. Such cutting entails cutting one or both ends from the window7covering (thereby cutting off a portion(s) of top rail 401, bottom rail 405, and fabric404). To perform this step, a width of the mounted tension rod may be determined using viewfinder 308 and / or markings 305 (measurement indications) of the mounted tension rod. The window covering may be cut to have a width equal to this determined width through the use of a cutting mechanism.

[0070] For instance, FIG. 4g depicts perspective views of a cutting mechanism in position to cut first and second ends of a window covering, respectively, according to embodiments. An end of the window covering may be locked in place by a locking mechanism of the fabric cutting mechanism. The window covering is locked into place so that the fabric cutting mechanism cuts the window covering at positions (e.g., at each end) to have an overall width remaining that matches the determined width of the tension rod. Movement of a blade of the fabric cutting mechanism into and through the window covering is enabled, such as by a push button or buttons that can be located on top or sides of cutting of the fabric cutting mechanism or by twisting a threaded screw, to cut an end from the window covering. This may be repeated for both ends of the window covering (e.g., for symmetry purposes).

[0071] FIG. 4h depicts side views of the closed window covering of FIG. 4a prior to and after having first and ends removed, according to an embodiment. In this manner, the window covering has a configured width substantially matching that of the mounted tension rod. Thereafter, the cut window covering may be attached to the mounted tension rod, as shown in FIG. 4f.

[0072] Further steps may be performed. For instance, FIG. 4i depicts a perspective view of a closed window covering with end caps being attached, according to an embodiment. As shown in FIG. 4i, end caps are snapped onto the cut ends of the bottom rail of the cut window covering. In this manner, a smooth surface is provided at the cut ends (rather than the interior of the cut bottom rail being exposed). In another embodiment, end caps may similarly be applied to the top rail of the cut window covering.

[0073] Furthermore. FIG. 4j depicts perspective views of a closed window covering with a solar panel being attached and a coded badge being attached, respectively, according to an embodiment. As shown in FIG. 4j, one or both of a solar panel (e.g., solar panel 408 of FIG. 4a) or a coded badge are mounted to the bottom rail of the window covering. The coded badge may include a code (e.g., alphanumeric, bar code, QR code) that uniquely identifies the window covering for tracking purposes. In another step, a light emitter (e.g., light bar 409 of FIG. 4a) may be similarly attached to the bottom rail (inner side) of the window covering.

[0074] As described herein, a user interface may be provided that enables configuration and usage of a mounted window shade system. For instance, FIG. 4k depicts a user interface device capable of setting a bottom limit for a window covering, according to an embodiment. In the example of FIG. 4k, a down arrow of the user interface may be interacted with (e.g., pressed) to lower the window shade (e.g., a motor of the window covering expands the shade, thereby lowering the bottom rail) a desired distance. The dow n arrow of the user interface may be able to adjust the position of the window covering upward if needed. The down arrow (or other user interface control) may be interacted with, such as by being held down a predetermined amount of time, to set the bottom limit of the window' covering. Henceforth, when the window covering is lowered / opened, the window covering will automatically stop lowering / opening when the set bottom limit is reached.

[0075] FIG. 5 illustrates example circuit diagram for a microcontroller 500 that may be included in a rail of a window covering disclosed herein. The microcontroller 500 interconnects user input 501 such as buttons, switches and capacitive touch controllers to allow the user to control (raise, low er, stop) or set preferences (disable / enable dynamic shading) and other options. Additionally, a user can modify a user config 505 using a network connected device (e.g., smart phone, virtual assistant) to set energy savings preferences on the dynamic shade. User input 501 may also come from wireless interfaces such as IR, RF, Wi-Fi, Bluetooth which may be initiated by remote control or smart phone or other w ireless device or controller. Cloud data 503 and local network 504 devices such as controllers or sensors or smart home devices can also issue controls and / or update dynamic shade settings. Cloud data 503 shall also include weather data or cloud-based firmware updates to the microcontroller 500. Local network 504 devices can also update the firmware of the microcontroller 500. Sensor inputs 502 from integrated sensors in one or both rails of a window covering or elsewhere, such as occupancy, heat, light, proximity, air quality, smoke, gas, level, pressure, accelerometer, compass, glass break, IR and other sensors can further assist the microcontroller 500 to make decisions on raising and lowering the window covering. For instance, the occupancy sensor may be helpful to determine when to and when not to automatically raise a shade. If a user is in the room, they may feel raising the shade automatically is an invasion of their privacy or annoying. There are multiple types of occupancy’ sensors that may be employed such as convention passive infrared (P1R) or more modem millimeter wave (mmWave). Also, the ability for the shade to dynamically move its sensors may allow- for more dynamic algorithms, such as ability to find the actual peak incidence of sun for solar charging or advance occupancydetection or security feature. An accelerometer sensor can also be considered as user input 501 in cases where the user tugs on the rail to indicate they want the window covering to raise or lower or stop. An accelerometer sensor can also be used to determine the stop of the shade when it hits the windowsill.

[0076] Other opportunities for energy efficiency optimization and measurement include the ability to measure differential sensor readings such as light, heat and humidity sensors on inside and outside facing sides of the rail to determine things like quality of seal of the window covering or detecting error cases. A common problem with high performing window coverings on single pane windows is water condensation. The integrated humidity' sensor can alert a user to a water condensation issue and raise the window covering automatically to remedy or call the issue to a user's attention. A level sensor can indicate when the window covering is not mounted properly or has settled over time. Glass break sensors are suitable for security applications as windows are common entry points for thieves. Gas, smoke and air quality are also helpful indicators of other emergencies a household or business may be facing. IR may be used to support external IR remote control features without the need for wireless pairing. The microcontroller 500 also uses motor communication 506 to understand the state of the motor or set motor settings such as torque, speed or set limits. Motor charge 507 can be used to optimally manage the charge state of the rechargeable motor for maximum lifetime. The solar battery 508 charging and discharging logic is managed by the microcontroller 500. In certain cases, the dynamic shading system will need to communicate feedback to the end user. For this purpose, user feedback 509 is used to provide lighting, sound or voice feedback to let the user know of pending window covering state change(raise / lower) or error or state of charge or something else. The solar battery 508 is connected to the microcontroller 500 and logic inside the microcontroller determines when the solar panel 510 should charge the solar battery 508.

[0077] To maintain optimum battery life, the charging logic will determine proper thresholds for when the solar battery should charge the motor battery. When the bottom rail is docked 511 (raised), the logic may check the motor battery ’s state of charge 512. Ifthe motor battery's state of charge 512 is below a threshold and the solar battery' state of charge 513 is above a threshold, then the charge motor battery’ with solar battery 514 operation should commence. The state machine should check the solar battery state of charge 513 on a time interval to make sure that the solar battery' state of charge 513 does not go below threshold. If the solar battery state of charge 513 goes below threshold, then the no charging 515 action should be taken.Also, if the check motor battery state of charge 512 is above threshold, no charging 515 action should be taken.

[0078] Note that a window covering may include one or more batteries of other battery type(s). As used herein, the term “rail battery’” encompasses any type and number of batteries included in a window covering rail, such as solar charged battery, a battery that receives charge from another source (e.g., a wall socket), a non-rechargeable battery, and / or another battery’ of suitable ty pe.V. Conclusion

[0079] While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the embodiments. Thus, the breadth and scope of the embodiments should not be limited by any of the above-described example embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

WHAT IS CLAIMED IS:

1. A window shade system, comprising: a window covering having a first rail, a second rail, and a fabric that couples the first and second rails; wherein the first rail includes a clip interface configured to enable attachment to a tension rod configured to be mounted between opposing first and second side jambs of an interior window frame.

2. The window shade system of claim 1, wherein the clip interface comprises a locking mechanism.

3. The window shade system of claim 1, further comprising the tension rod.

4. The window shade system of claim 3, wherein the tension rod includes measurement indications configured to indicate a distance between the first and second side jambs between which the tension rod is mounted.

5. The window shade system of claim 4, wherein the measurement indications include at least one of a color or an alphanumeric character to indicate the distance.

6. The window shade system of claim 3. wherein the tension rod comprises at least one of: a level device configured to indicate an orientation of the tension rod relative to horizontal; a viewfinder configured to provide a measurement of the length of the tension rod in a retracted or expanded position; a locking mechanism configured to enable the tension rod to be locked in the retracted or expanded position; and a plurality of screw holes that enable securing of the mounting to the first and second side jambs by corresponding screws.

7. The window shade system of claim 1, further comprising:a cutting mechanism configured to cut an end from the window covering at a selectable location.

8. The window shade system of claim 7, wherein the cutting mechanism comprises at least one of: a locking mechanism configured to lock the window covering in place in the fabric cutting mechanism; and a gear system configured to enable movement of a blade of the fabric cutting mechanism into and through the window covering.

9. The window shade system of claim 1, wherein the second rail comprises: a rechargeable battery; and a solar panel configured to convert light to electricity that is stored in the rechargeable battery.

10. The window shade system of claim 9, wherein the second rail further comprises at least one of: a light emitter powered by the battery, the light emitter configured to illuminate the fabric to simulate at least one of lighting internal to a dwelling, activity in the dwelling, or media playback in the dwelling.

11. A method for configuring a window shade system, comprising: mounting a tension rod between opposing first and second side jambs of an interior window frame, the tension rod having a first width; cutting to a width shorter than the first width a window7covering having a first rail, a second rail, and a fabric that couples the first and second rails; and clipping the cut window covering to the tension rod by a clip interface of the cut window covering.

12. The method of claim 11, further comprising snapping on end caps to cut ends of the cut window covering.

13. The method of claim 11, further comprising attaching at least one of a solar panel and a coded badge to the second rail of the window covering.

14. The method of claim 11. further comprising interacting with a user interface device to set a bottom limit of the cut window covering.

15. The method of claim 11, wherein the tension rod has a measurement indicator and further comprising: determining a width of the mounted tension rod using the measurement indicator of the mounted tension rod.

16. The method of claim 11, further comprising at least one of: providing a level indication by a level device attached to the tension rod; providing a measurement of the length of the tension rod in a retracted position or expanded position by a viewfinder; enabling the tension rod to be locked in the retracted position or the expanded position; and enabling securing of the mounting to the first and second side jambs at screw holes of the tension rod by corresponding screws.

17. The method of claim 11, wherein said cutting comprises at least one of: locking the window covering in place by a locking mechanism of the fabric cutting mechanism; and enabling movement of a blade of the fabric cutting mechanism into and through the window covering by a gear mechanism of the fabric cutting mechanism.

18. The method of claim 1 1, charging a rechargeable battery of the window covering by a solar panel attached to the second rail.

19. The method of claim 18, further comprising: emitting light by a light emitter of the window covering that is powered by the battery, the emitted light illuminating the fabric to simulate at least one of lighting internal to a dwelling, activity in the dw elling, or media playback in the dwelling.

20. A window covering, comprising: a first rail; a second rail; and a fabric that couples the first and second rails; wherein the first rail includes a clip interface configured to enable attachment to a tension rod configured to be mounted between opposing first and second side jambs of an interior window frame.

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