UHF Sports Timing Tag Assembly

Abstract

A UHF sports timing tag assembly is provided, the UHF sports timing tag assembly comprising a support sheet, e.g., a bib, where a tag is supported by the support sheet, the tag comprising a dipole antenna and configured to transmit UHF signals to a receiver, and the UHF sports timing tag assembly comprising a spacer attached to the support sheet, where the tag is attached to the spacer, the spacer providing a predetermined spacing between the tag and the body of a wearer of the support sheet, at least a portion of the spacer having a general U-shape with opposing clamping members that receive the support sheet and provide a gap for clamping onto the support sheet.

Description

[Technical field]

[0001] The present disclosure relates to UHF sports timing comprising a tag and a spacer attached or attachable to a support sheet, such as a bib. [Background technology]

[0002] Currently, Ultra High Frequency (UHF) tags are commonly used in timing systems for large-scale sporting events such as running, cycling or motorcycling. UHF tags are cheap, lightweight and can be read at high speed and from a relatively large distance. Timing locations, such as the start line and / or the finish line, can be equipped with antenna mats capable of high-frequency communication with UHF tags worn by participants in the sporting event, in particular worn on the participants' chests.

[0003] When a tag enters the radiation field of the antenna mat, as a result of activation by the radiation field, the tag begins to transmit an ID message. An antenna in the mat receives these messages and transmits them to a decoder (analyser). The decoder is connected to the antenna mat and is programmed to determine the passing time of a tag with a unique ID based on the signal strength of the received message. Because the electromagnetic field generated by the antenna in the mat is strongest above the center of the mat, it is possible to determine with reasonable accuracy the moment when the tag passes the antenna.

[0004] Besides antenna mats, other antenna configurations may be used, such as vertically pointing antenna structures for timing systems, such as the vertically pointing antenna structure disclosed in US Pat. No. 10,673,144.

[0005] Ultra-high frequency (UHF) tags use frequencies in the UHF range of approximately 860-960 MHz. Typically, the tag includes a microchip coupled with an antenna and is structured so that its attachment to an object can be detected. In a typical sports timing system, every participant is provided with a tag, which is fastened to a bib that includes an identifier, e.g., a number, associated with the participant's identifier (e.g., one or more of name, address, and team, etc.). The tag is attached to the bib such that there is a clear one-to-one relationship between the tag and the bib. The tag is attached to the bib such that there is a clear one-to-one relationship between the tag and the bib. The bib is worn and / or fastened to the wearer's clothing such that the bib is located in front of the participant's chest, and another bib or part of the bib (possibly including an identifier) ​​may be located behind the participant's back.

[0006] Certain problems arise when fastening UHF tags to bibs. One problem is related to the fact that the tag is in close proximity to the body, which acts as a dielectric with a relatively high permittivity for the tag. The proximity of the body changes the impedance of the tag antenna, thereby "detuning" the tag from its optimal operating point. Due to this detuning effect, the tag may not be able to generate a detectable modulated backscatter signal. The effect of detuning is further enhanced in wet environments, such as wet and sweaty clothing and / or the body of an athlete. Thus, the signal may be further degraded, thereby increasing the risk that a participant crossing or passing the detection antenna will not be registered, or at least not correctly registered, by the timing system.

[0007] To at least partially overcome this problem, a spacer may be used in the vicinity of the tag to provide at least some distance between the tag and wet clothing and / or body. Such a spacer may have the form of a strip of lightweight foam attached to or in the vicinity of the tag. Ideally, such a spacer should ensure a separation distance of about 10 mm; however, at such a thickness, such tag bib assemblies are not suitable for mass distribution (by mail) and storage (e.g., millions or more). Therefore, in practice, spacers of less than the desired optimal thickness are used. Thus, conventional spacers allow for suboptimal performance of the tag.

[0008] A further problem associated with the use of tag bib assemblies is that the tag signal can be affected by nearby objects. The presence of other people in close proximity to the emitted signal can result in only a small portion of the signal being picked up by the detection antenna of the timing system, especially if many participants pass by the antenna at the same time. It is therefore desirable when using a tag bib assembly for the tag signal to be directed towards the detection antenna.

[0009] WO 2013 / 068043 discloses a tag assembly, attachable to clothing and / or the body, the assembly comprising a support sheet, a tag disposed on the support sheet, the tag configured to transmit a signal to a receiver, and an expandable spacer structure disposed on the support sheet, the expandable spacer structure providing a predetermined spacing between the tag and the body, the expandable spacer structure configured to expand from a thin unexpanded state to an expanded state of a predetermined spacer thickness. Summary of the Invention [Problem to be solved by the invention]

[0010] Although the known spacers work satisfactorily in principle, it has been found that the expansion of the expandable spacers may not be as reliable as desired: if the suitable expandable material of the foam spacer and / or the foam of the foam spacer gets wet, this may affect the signal itself, and if it dries again, it may become hard and may rub against the athlete's body and / or clothing.

[0011] Also, the manufacturing cost of bibs with expandable spacers is a concern, therefore further improvements in UHF sports timing systems are desired. [Means for solving the problem]

[0012] In view of the above, there is provided, in at least some respects, a UHF sports timing bib tag assembly, and a UHF sports timing tag assembly for such a bib tag assembly, as shown below.

[0013] In one aspect, a UHF sports timing tag assembly is provided. The tag assembly includes a tag and a spacer. The tag assembly may include a tag for support by a support sheet, such as a bib. The tag may include a dipole antenna and may be configured to transmit UHF signals to a receiver. The spacer may be configured to be attached to the support sheet to provide a predetermined spacing along the antenna between the antenna of the tag and the wearer's body. The tag may be attached to the spacer, and at least a portion of the spacer may have a general U-shape with opposing clamping members that receive the support sheet and provide a gap for clamping to the support sheet.

[0014] In one aspect, a UHF sports timing bib tag assembly is provided that includes a support sheet, a tag supported by the support sheet, the tag configured to transmit UHF signals to a receiver, and a spacer attachable or attached to the support sheet, the spacer providing a predetermined spacing between the tag and a wearer's body when attached.

[0015] The tag and spacer may be provided as a UHF sports timing tag assembly as disclosed herein.

[0016] In one aspect, a method includes providing a participant of a sporting event with a bib and a UHF sports timing tag assembly as disclosed herein, and providing, from the bib and the UHF sports timing tag assembly, a UHF sports timing bib tag assembly as disclosed herein, where the tag assembly may be reused.

[0017] Further, with particular reference to any one or more of these aspects, the following is provided:

[0018] The support sheet may be a bib, which may include a visual identifier, such as one or more of a number, a wearer's name, a team identifier (e.g., a name and / or symbol), etc. The visual identifier may be provided, e.g., printed or otherwise formed, on a first side of the support sheet. A second side, e.g., a back side of the sheet, may be different from the first side.

[0019] The wearer may be a human being or an animal, for example a dog, horse, or camel.

[0020] The spacer may be configured to clamp onto the support sheet to attach the spacer to the support sheet to provide a predetermined spacing between the tag and the body, thereby effectively attaching the spacer to the support sheet. Clamping may avoid attaching the spacer to the support sheet by one or more methods, such as gluing, welding, riveting, etc., which may be time-consuming, permanent, non-modifiable, require specific apparel, require modification of the support sheet and / or the spacer, etc. Attaching the spacer to the support sheet may thus be easily performed by untrained personnel and / or at or near the reception and / or registration area of ​​a sporting event. Thus, the support sheet and the spacer may be stored and / or transported separately, which may simplify storage and / or handling, for example, reducing the packaging volume and / or allowing separate storage of either part (support sheet and spacer) compared to the packaging and / or storage volume of an assembly of a support sheet with a spacer attached.

[0021] The clamp may be, or may allow for, a removable clamp, thereby simplifying one or more of separately packaging, storing, reusing, and recycling the spacer and / or support sheet.

[0022] The clamp may allow for one-way attachment but may prevent removal in the opposite direction, e.g., one-way attachment in at least one direction. This may hinder or prevent accidental or intentional removal of the tag, which may be associated with loss and / or false identification of the wearer (athlete). Removal in such cases may be easily accomplished in a direction different from the attachment direction, e.g., substantially perpendicular.

[0023] Additionally or alternatively, the spacer may comprise one or more protrusions and / or one or more tubular structures to define at least a portion of the spacing. Then, at least a portion of one or more spaces between at least some of the protrusions may be empty and / or filled with a low dielectric material compared to at least a portion of the individual protrusions, and / or at least a portion of the lumen of one or more tubular structures may be hollow and / or filled with a low dielectric material compared to at least a portion of the individual tubular structures. The protrusions may preferably be spaced apart along the length and / or height of the tag in a direction away from the tag. This may facilitate positioning and / or orientation of at least a portion of the tag relative to the body. Additionally or alternatively, the one or more tubular portions may extend along at least a portion of the tag, preferably along the length of the tag. Thus, a low dielectric material may be provided in the vicinity of the tag, which may improve operation of the assembly. The protrusions may be formed as tubular structures. The projection and / or tubular portion may extend from the clamping member away from the gap.

[0024] At least some of the one or more protrusions and / or one or more tubular structures may be rounded in at least one direction with a radius of more than 2 mm, preferably with a radius in the range of 2 to 7 mm, for example with a radius in the range of 3 to 5 mm, and / or may provide a contact surface of each protrusion and / or tubular structure with the human body having a size in the range of 1 to 7 mm, for example in the range of 1 to 5 mm, in the length or height direction of the tag.

[0025] The tag may be disposed on the support sheet. However, it is preferred that the tag is attached to the spacer. Preferably, the tag is disposed on the spacer and fixed thereto, for example by gluing, welding, etc. Thus, the relative positions of the tag and the spacer may be clearly defined, which may improve the operability of the assembly.

[0026] The spacer may provide a support surface for supporting the tag, preferably over substantially the entire length and / or height of the tag, more preferably over the entire length and / or height of at least the antenna of the tag, which may be a flat surface to facilitate attachment of the tag.

[0027] Additionally or alternatively, the support surface may be at least partially provided by a plurality of support structures providing a plurality of support surface portions for supporting the tag antenna spaced apart by one or more openings, e.g., one or more protrusions and / or tubular structures extending from the clamping member in a direction away from the gap. This may reduce the amount of material in the immediate vicinity of the tag antenna, thereby reducing the effective dielectric constant of the spacer and / or reducing their detuning effect on the tag antenna. The plurality of support surface portions may preferably be flat and / or substantially coplanar. Preferably, the support surface is provided by three or more support surface portions separated by two or more openings to further distribute the support of the tag while reducing the amount of spacer material. The support structure may comprise a plurality of ribs, preferably parallel to each other.

[0028] The spacer may include structure for aligning at least a portion of the tag with at least a portion of the spacer, for example, the spacer may include one or more protrusions, edges, ribs, and / or recesses for receiving at least a portion of the tag, which may help define the relative positions of the tag and spacer and may protect at least a portion of the tag. Such a recess for receiving at least a portion of the tag may receive the entire tag such that it is recessed as a whole into a portion of the spacer.

[0029] The spacer may be configured to define the position and / or orientation of the tag relative to an edge of the support sheet, and in particular may orient at least a portion of the tag along the edge of the support sheet. This facilitates giving the tag a predefined position and / or orientation. In particular, sports regulations may determine the position of the bib relative to the athlete's body, in particular the athlete's chest. Thus, when the position and / or orientation of the tag is well-defined relative to the bib, the position and / or orientation of the tag may be well-defined relative to the wearer and the surroundings (in particular horizontally and / or vertically), which may improve the operation of the assembly and the correct interaction with the antenna.

[0030] For example, the spacer may include structure configured to align the tag with an edge of the support sheet, such as structure configured to engage the edge of the support sheet, In particular, at least a portion of the clamp may engage the edge of the support sheet, whereby a tactile reference is provided to simplify placing the tag in place.

[0031] Additionally or alternatively, the spacer may be configured to orient the tag at a slight incline relative to the vertical compared to the posture of a typical competitive athlete; for example, runners tend to have an upright posture while skiers tend to have their torso bent forward, so that tilting the tag forward / backward relative to the body can accommodate such body posture (e.g., increasing or decreasing the inclination) and thus adapt the orientation of the tag to a desired (particularly optimal) connection with the timing antenna field.

[0032] The spacer may have a general U-shape with opposing clamping members that provide a gap for receiving and clamping the support sheet onto the support sheet. The U-shape provides an opening between the clamping members and provides an entrance to the gap and a back surface generally opposite the opening. The U-shape allows the spacer to be easily mounted onto the support sheet. However, at least a portion of at least one of the clamping members may extend over another end of the clamping members to close the entrance of the U-shape, which may be used to lock a portion of the support sheet into the gap, which may help prevent the spacer from being lost from the support sheet.

[0033] The clamping members may be connected with a back portion. The back portion may form a resilient hinge and / or may comprise a hinge and a separate resilient member to provide the clamping force to the clamping members; in particular, the back portion may form a continuous resilient portion integral with at least one of the clamping members, preferably the opposing clamping members. The clamping members (and any back portion) may be integrally formed with each other, which may facilitate manufacturing; for example, the U-shaped structure may be formed by extrusion techniques. The U-shape, in particular the back portion thereof, may provide a structure configured to align the tag with an edge of the support sheet. The opposing clamping members may have substantially the same length in a direction perpendicular to the U-shape, which may be along the length of the spacer and / or at least a part of the tag (see below). Additionally or alternatively, the U-shape, and / or any other portion of the spacer, may be elongated with a certain shape in a direction perpendicular to the U-shape, which may facilitate manufacturing; for example, the U-shaped structure may be formed by extrusion techniques. Such elongated U-shaped structures may provide a significant clamping force with a moderate consumption of material. For example, an elongated thin-walled U-shaped structure of a certain length in the direction of elongation (perpendicular to the U-shape) may provide a certain clamping force, whereas a much shorter structure of the same material and generally the same shape would require a much thicker U-shaped structure.

[0034] In such a spacer having a general U-shape with clamping members, one clamping member of the U-shape may provide a support panel for supporting the tag, which may simplify the structure of the spacer and reduce the size and / or weight of the spacer. The clamping member and at least one of the support panels of the tag may be integrated, in particular integrated or identical, for example, the support panel has a support surface formed by a surface of the clamping member. For example, the clamping member may have an elongated shape corresponding to the elongated shape of the tag (for example associated with the elongated shape of the tag's antenna) in order to attach the tag onto the support surface. For example, the clamping member or U-shape may extend along the length of the tag, preferably at least along the length of the tag's antenna, in order to support substantially all of the tag (the tag's antenna).

[0035] The generally U-shaped structure may also provide resistance to bending and / or folding perpendicular to the direction of elongation. Thus, a tag disposed on such a spacer may be protected against bending and / or folding that may otherwise damage the tag. For example, the spacer may be substantially rigid and may resist bending and / or folding, e.g., during normal use and handling by a normally alert person. Thus, the spacer may be useful to prevent bending and / or folding of the tag, particularly when the tag is disposed on and / or integrated into the spacer.

[0036] In a spacer with a gap as described above, the gap may have one or more clamping parts for locally increasing the clamping force on the support sheet. Such clamping parts may be provided by areas of locally reduced width and / or locally increased coefficient of friction. Preferably, the gap is provided with a plurality of such clamping parts to increase the clamping force. Optionally, the U-shape may have an opening and a back part, and one of the clamping parts is located closer to the opening than another of the clamping parts. This may simplify the introduction of the support sheet; the clamping force may be translated into an insertion friction of the support sheet when placing the spacer on the support sheet; the area of ​​reduced friction compared to the increased friction may make it easier to place an edge part against the area of ​​increased friction, thus simplifying the installation.

[0037] The clamping member may define a corrugated path for the support sheet from the inlet of the gap in at least a portion of the gap. The path length of the gap may thus be increased compared to the outer size of the clamp, thereby providing an increased clamping force by one or more of the following: overall increased friction, deformation (bending) of the support sheet, and reduced length of the clamping member from the back of the U-shaped portion. The corrugated path may be provided by corrugations of one or more of the clamping members. The corrugation and / or corrugations may comprise more or less smoothly curved portions; one or more of the corrugations may be symmetrical or asymmetrical, e.g. sinusoidal and / or triangular and / or sawtooth. In the case of such a corrugated path, at least a portion of at least one of the clamping members may be corrugated in a direction from the inlet of the U-shape toward the back. The corrugations may extend along the longitudinal direction of the spacer.

[0038] One or more of the width of at least a portion of the gap, the number and / or size and / or curvature of one or more corrugations of at least a portion of the gap, and / or the number and / or size and / or shape of clamping portions may be determined according to one or more of the thickness, compressibility, elasticity, flexibility, structural properties and / or surface properties (e.g., roughness, uniformity) of the support sheet.

[0039] For example, at least a portion of the corrugated path may have a corrugation amplitude that is more than twice the minimum width of the gap at rest and / or more than twice the thickness of the support sheet to which the spacer is to be clamped; the wavelength and / or amplitude of the corrugations may be determined in relation to the thickness and / or flexibility (and / or deformability, e.g., elasticity) of the support sheet. The amplitude and / or wavelength of the corrugations may vary along the path, e.g., increasing along the path from the inlet to the back. It should be noted that too sharp protrusions may increase local pressure, but effectively reduce the holding force of the clamp against the support sheet, more than gentle protrusions that allow more contact surface between the corrugations (between the clamped portions of the corrugations).

[0040] In the case of asymmetric corrugations, the asymmetry preferably provides a relatively gradual slope from the inlet to the back and a steeper slope from the back to the inlet to facilitate insertion of the support sheet but prevent withdrawal.

[0041] Additionally or alternatively, when the spacer has both a corrugated path and one or more clamping portions, at least one of the clamping portions for applying a locally increased clamping force on the support sheet may be positioned distal to the corrugations that provide at least a portion of the corrugated path as viewed from the inlet.

[0042] In such latter case, insertion of the support sheet into the gap is facilitated, but removal is hindered or prevented.

[0043] For such a corrugated path and / or one or more clamping parts, at least one of the clamping members may comprise one or more inward projections into the gap, which may locally narrow the gap. Such inward projections may be formed as ribs, which may be hollow and / or filled with a low dielectric constant material compared to at least a portion of the individual projections. A portion of the spacer that is hollow and / or filled with a low dielectric material (e.g., air) may improve the operation of the assembly by reducing the amount of high dielectric material in the vicinity of the tag. Thus, in general, the spacer may comprise at least one tubular portion extending in the assembled configuration of the assembly along at least a portion of the tag, preferably along the length of the tag, where the tubular portion may define a lumen that is hollow and / or filled with a low dielectric material compared to at least a portion of the tubular portion and / or other portions of the spacer.

[0044] The spacer may be configured to define a spacing between the tag and the body in the range of 2 to 15mm, particularly in the range of 4 to 8mm, for example in the range of 5 to 6mm, for example the spacer may have or define a thickness at the tag relative to the tag in the range of 2 to 15mm, particularly in the range of 4 to 8mm, for example in the range of 5 to 7mm.

[0045] At least a part of the spacer may have a thin-walled structure. For example, at least a part of the spacer, in particular at least a part of at least one of the clamping members, has a wall with a thickness in the range of 0.1 to 2.0 mm, preferably in the range of 0.2 to 1.0 mm, for example in the range of 0.2 to 0.6 mm. Thus, the spacer may be lightweight. In order to reduce the burden on the athlete as much as possible, a lightweight structure is preferable.

[0046] The spacer may be made of a water-resistant, substantially water-non-absorbent material. At least a portion of the spacer may be, or may be formed of, a solid material. This may reduce or prevent absorption of moisture into the spacer, and thus prevent changes in the dielectric properties of the spacer. In particular, the spacer may generally be formed of a polymeric material, which may include or may be polyamide (e.g., nylon (PA6)), or polyolefin, such as polyethylene (PE) or polypropylene (PP). At least a portion of the spacer may be formed by molding, e.g., injection molding, and / or by extrusion, which are cost-effective manufacturing methods for large quantities of spacers.

[0047] The tag may be operable in the ultra-high frequency range. The tag may comprise at least one antenna structure, which may be a metallic dipole antenna structure, and the spacer may be located at least partially within close proximity of the antenna structure and / or on top (or below) of the antenna structure. The closer the spacer is, the better it may define the desired spacing. The tag may comprise a processor connected to the metallic thin-film antenna structure, and thus the spacer may be located at least partially on the tag.

[0048] The tag may also include a tag antenna structure which may be impedance matched (i.e. tuned) to the tag's processor, taking into account the presence of a thin film dielectric layer of relatively high dielectric constant, e.g. 10-50, which may optionally be located in close proximity to the antenna structure.

[0049] The presence of a dielectric layer may partially "screen" the proximity of the body. Such a layer may have a thickness in the range of 0.05 to 5 mm. Such a layer may comprise titanium dioxide.

[0050] Such a dielectric layer may comprise multiple dielectric layers, for example a first dielectric layer of relatively low dielectric constant (e.g. 1-5) at the interface with the tag structure, and a second dielectric layer of relatively high dielectric constant (10-50) on top of the first thin film dielectric layer at the interface with the spacer.

[0051] Such dielectric layers may be based on polymers containing one or more dielectric fillers (e.g., titanium dioxide, silicon dioxide, aluminum dioxide, aluminosilicates, etc.) to form a dielectric layer of a desired dielectric constant. The dielectric constant of such layers may be controlled by controlling the composition and / or concentration of the dielectric filler (mixture) in the polymer carrier layer.

[0052] The support sheet may include a visual identifier, particularly a printed identifier, on a first side, e.g. a bib, and the tag may be located on or in front of the first side. Thus, the tag may not even be covered by the support sheet, and in addition or alternatively, a substantially closed U-shaped spacer may protect at least a portion of the support sheet contained within the gap from liquids and keep the portion of the support sheet relatively dry. Either or both may improve operation in situations where the support sheet may get wet and / or is water-absorbent. Also, it may simplify visual inspection of the tag, even from a distance.

[0053] The spacer may be partially disposed on or in front of the first surface and partially disposed on or behind the second surface of the support sheet opposite the first surface, for example, the spacer may have a U-shaped portion as described above, and the tag may be supported on the spacer at a distance from the first surface of the support sheet. This makes it easy to separate the tag from the support sheet and the wearer's body, improving operability.

[0054] The spacer may accommodate at least a portion of the support sheet overlapping the tag in a direction generally perpendicular to the direction of maximum size of the tag, which may provide a consistent dielectric profile for the tag (antenna) and improve predictable operation of the assembly.

[0055] To improve operation of the assembly, at least a dielectric layer may be provided disposed between the tag and the spacer, where the dielectric layer comprises a high dielectric material, and where the antenna, e.g. a thin metal antenna structure, is impedance matched to the tag's processor taking into account the presence of the dielectric layer in close proximity to the antenna structure.

[0056] In relation to the above, a sports timing tag assembly provided herein may comprise a tag for support by a support sheet, e.g., a bib, the tag having a dipole antenna and configured to transmit UHF signals to a receiver, and a spacer configured to be attached to the bib to provide a predetermined spacing between the antenna of the tag and the body of a wearer, the tag being attached to the spacer, and at least a portion of the spacer having a general U-shape with opposing clamping members that receive the support sheet and provide a gap for clamping onto the support sheet.

[0057] In such a UHF sports timing tag assembly, one or more of the following may apply:

[0058] The tag may be elongate having a length and height, and wherein the spacer is configured to define the spacing along the length of the tag in the range 2 to 15 mm, particularly in the range 4 to 8 mm, for example in the range 5 to 6 mm.

[0059] The tag may be elongate having a length and a height, and wherein the spacer may have or define a thickness along the length of the tag at the location of the tag in the range of 2 to 15 mm, particularly in the range of 4 to 8 mm, for example in the range of 5 to 6 mm.

[0060] The tag may be elongated, having a length and a height, and the spacer may have a length greater than 5 times the height, preferably in the range of 5 to 20 times the height.

[0061] At least one of the clamp members provides a support surface for supporting the tag, and the tag is disposed on the support surface.

[0062] The clamping member may define a corrugated path in the support sheet from an entrance of the gap in at least a portion of the gap, and the assembly may then comprise a clamping portion for applying a locally increased clamping force on the support sheet, the clamping portion being located distal to the corrugations providing at least a portion of the corrugated path from the entrance.

[0063] The spacer may comprise at least one tubular portion extending along at least a portion of the tag, preferably along the length of the tag.

[0064] The spacer may be substantially a polymer extrusion product, such as polyamide or polyethylene.

[0065] At least part of the spacer, particularly at least part of at least one of the clamping members, if present, may have a wall having a thickness in the range 0.1 to 2.0 mm, preferably in the range 0.2 to 1.0 mm, for example in the range 0.2 to 0.6 mm.

[0066] The tag may include at least one metallic dipole antenna structure, and the spacer may be disposed within the vicinity of the antenna structure and / or at least partially on top of the dipole antenna structure, and / or the tag may be capable of operating in the ultra-high frequency range.

[0067] The tag may include a processor connected to a thin metal antenna structure, and the spacer may be disposed at least partially across the tag.

[0068] At least a dielectric layer may be disposed between the tag and the spacer, where the dielectric layer comprises a high dielectric material, and where the metal thin film antenna structure is impedance matched to the processor taking into account the presence of a dielectric layer in close proximity to the antenna structure.

[0069] A UHF bib tag assembly may comprise such a UHF sports timing tag assembly, which may comprise a support sheet comprising a visual identifier, in particular a printed identifier, on a first side, wherein the spacer may be attachable to or attached to the support sheet such that the tag is positioned on or in front of the first side.

[0070] In the bib tag assembly, the spacer may be partially disposed on or in front of the first side and partially disposed on or behind a second side of the support sheet opposite the first side.

[0071] According to one or more of the present concepts, a UHF sports timing bib tag assembly may additionally or alternatively comprise a support sheet, e.g., a bib, for attachment to the body or clothing of a wearer, particularly an athlete, and a UHF tag comprising a thin film dipole antenna disposed on a surface of an elongated clamping structure for removably attaching the UHF tag to an edge of the support sheet. The elongated clamping structure may comprise the first clamping member and an opposing second clamping member, where the first clamping member and the second clamping member form a gap for receiving the support sheet. An outer surface of the first clamping member may form a surface on which the UHF tag is disposed. The second clamping member may comprise one or more spacer structures disposed along the elongated clamping structure such that, in use, the one or more spacer structures are located between the athlete's body and the UHF tag comprising the thin film dipole antenna.

[0072] The one or more spacer structures may then be positioned along a longitudinal axis of the elongated clamping structure.

[0073] The second clamping member comprising one or more spacer structures may be formed as a (extruded) corrugated sheet, preferably comprising one or more elongated corrugations along the longitudinal axis of the elongated clamping structure.

[0074] The cross-sectional depth of the elongated corrugations may define the separation distance between the athlete's body and the UHF tag.

[0075] The first clamping member may have a first set of elongated corrugations and the second clamping member may have a second set of elongated corrugations opposite the first set of elongated corrugations.

[0076] The above-mentioned aspects will be further explained below, together with further details and advantages, with reference to the drawings showing, by way of example, a number of embodiments. [Brief description of the drawings]

[0077] [Figure 1A] Figure 1A shows a schematic of the UHF bib-tag assembly. [Figure 1B] Figure 1B shows a schematic of the UHF bib-tag assembly. [Figure 2A] FIG. 2A illustrates a timing system for use with one embodiment of the bib-tag assembly. [Figure 2B] FIG. 2B illustrates a timing system for use with one embodiment of the bib-tag assembly. [Figure 2C] FIG. 2C illustrates a timing system for use with one embodiment of the bib-tag assembly. [Figure 3A] FIG. 3A shows a tag assembly for the bib-tag assembly. [Figure 3B] FIG. 3B shows a tag assembly for the bib-tag assembly. [Figure 3C] FIG. 3C shows the spacer of the tag assembly. [Figure 4] FIG. 4 shows two spacers for a tag assembly for the bib-tag assemblies provided herein. [Figure 5A] FIG. 5A shows the mounting / removal of the tag assembly onto / from the support sheet. [Figure 5B] FIG. 5B shows the mounting / removal of the tag assembly onto / from the support sheet. [Figure 5C] FIG. 5C shows the mounting / removal of the tag assembly onto / from the support sheet. [Figure 6] FIG. 6 illustrates an alternative embodiment of the UHF bib-tag assembly provided herein. [Figure 7A] FIG. 7A shows another embodiment of the bib-tag assembly. [Figure 7B] FIG. 7B shows the spacer of the tag assembly in side view. [Figure 8] FIG. 8 shows a spacer for a tag assembly for a bib-tag assembly provided herein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0078] It should be noted that the figures are schematic and not necessarily to scale, and that details not necessary for understanding the invention may be omitted. The words "upward", "downward", "under", "on", etc., refer to the embodiments oriented in the figures, unless otherwise specified. Furthermore, elements that are at least substantially identical or perform at least substantially the same functions are indicated by the same numerals and usefully differentiated with alphabetical suffixes.

[0079] Further, unless otherwise specified, terms such as "detachable" and "removably connected" are intended to mean that individual parts can be essentially removed without damaging or destroying any of the parts, and exclude, for example, structures in which the parts are integral (e.g., welded or molded together), but include structures in which the parts are joined by or as interfacing connectors, fasteners, releasable self-locking features, etc. The verb "to facilitate" is intended to mean "to make easier and / or less complicated" rather than "to enable."

[0080] 1A-1B show a schematic of one embodiment of a UHF bib-tag assembly 100 comprising a support sheet 102 provided with an identifier 104 for use as a bib. A UHF tag 106 is supported by the support sheet. A spacer 110 is attached to the support sheet to provide a predetermined spacing between the tag 106 and the wearer's body (see below). The UHF tag 106 and spacer 110 together form a UHF tag assembly 101 for use with the support sheet / bib 102 to form the UHF bib-tag assembly 100.

[0081] The illustrated support sheet 102 is a bib for use, for example, in sporting events, where the support sheet is a flexible, lightweight, water-resistant, sheet-like material adapted to be attached to a person through the use of an adhesive or mechanism for pinning or fastening the support sheet to the wearer (or the wearer's clothing). The wearer may be a human or an animal. Exemplary materials used for the support sheet include cloth, paper, woven sheets, plastic, or any combination thereof. Preferably, the front side of the support sheet displays an identifier, such as identifier 104, that identifies the wearer to which the support sheet is attached. The support sheet 102 may have a four-sided rectangular shape, but in other embodiments, it may have any suitable shape, such as a logo shape.

[0082] The tag 106 is configured to transmit UHF signals to a receiver. In particular, to make the tag suitable for a sports timing system, the tag 106 may include an antenna 108 for receiving and transmitting signals. The tag may be a UHF tag operating in the UHF frequency range. More generally, the tag may be configured to operate in a frequency range of 800-1000 MHz. For example, the tag may operate in a frequency range of 860-960 MHz, and / or the tag may operate in a frequency range of 900-930 MHz. In another embodiment, the tag may operate in a frequency range of 940-970 Mhz. The antenna 108 associated with the tag may have a predetermined shape. The antenna 108 may be a thin metal (flexible) layer. The tag 106 may further include a support 114, e.g., one or more dielectric layers, which surrounds the antenna 108 and the chip 112 and protects them from contact and / or moisture, etc.

[0083] For example, the tag structure may comprise a processor, e.g. an integrated circuit (IC), for receiving, processing and transmitting UHF signals, and a thin metal antenna structure 108 mounted on a support 114, which may be flexible. The processor and the thin metal antenna structure may be covered with a passivation layer (not shown), e.g. a thin insulating layer. The back surface of the support sheet may comprise an adhesive so that the tag structure may be attached as a sticker to the spacer, or in other embodiments to a bib. The spacer may provide a desired spacing between the tag mounted on the support sheet and the wearer's body. However, the tag is preferably attached to the spacer instead of the bib, and more particularly, the tag and the spacer together are preferably reusable, separate from the support sheet, e.g. as a personal tag for a user to be used at multiple events. To that end, the tag assembly 101 comprising the tag 106 and the spacer 110 may be removably attached to the bib 102.

[0084] In one embodiment shown in FIG. 1B, the antenna 108 may have the form of a dipole antenna along axis A. The antenna 108 may have a length of about half the wavelength of the operating frequency, e.g., 10-20 cm (900 MHz corresponds to approximately 16 cm). The tag may further include a processor 112 for processing signals received by the tag, i.e., a dedicated RFID processor. The tag 106 may further include a support 114, e.g., one or more dielectric layers, which surrounds and protects the antenna 108 and the processor 112, e.g., from contact and / or moisture. The shape of the tag 106 may approximately correspond to the shape of the antenna 108; the tag 106 may, for example, be elongated with a length L and a height H in a direction perpendicular to the length L. In this specification, the tag 106 is shown as a rectangle, but other shapes may be provided.

[0085] The tag 106 may be securely attached to the support sheet 102 .

[0086] A spacer 110 (see below) is attached to the support sheet to provide a predetermined spacing between at least the antenna 108 of the tag 106 and the wearer's body. The spacing is preferably about 5-15 mm. For UHF tags in use, the spacer may have a thickness in the range of 5-10 mm. The spacer provides the desired spacing between the tag and a (wet) shirt and / or body such that adverse effects of the (wet) shirt and / or body are significantly reduced.

[0087] The position and orientation of the bib 100 on the wearer's body is typically precisely adjusted and / or determined by the sporting event organizers, and is usually substantially horizontal (with the identifier 104 clearly visible and upright) on the athlete's chest. In FIG. 1A, it is shown that when so positioned, the tag 106 may be attached to the bib 100 such that its antenna structure 108, e.g., its longitudinal axis A, is substantially parallel to the ground. In this configuration, the tag signal may be picked up by a detection antenna, which is positioned on the ground (e.g., by using an antenna mat) or above the athlete to be detected (see below). Alternatively, although not shown, the tag / antenna structure and associated spacer structure 110 may be attached to the bib such that its longitudinal axis A is perpendicular to the ground. In such a configuration, the tag signal may be picked up by a detection antenna positioned at least laterally of the athlete's path of movement.

[0088] 2A-2C illustrate a timing system for use with a bib tag assembly 202 according to various embodiments of the present invention. In particular, FIG. 2C illustrates a schematic diagram of a top view of a timing system that may include a detection antenna 208 connected to a decoder 206. In one embodiment, the detection antenna may be configured as an elongated antenna mat placed on the ground in the path of travel of the athlete, where the antenna mat may include one or more antennas configured to pick up signals transmitted by the bib tag assembly.

[0089] In another embodiment (not shown in FIG. 2C), the detection antenna may be placed to the side or above the athlete's path of travel. Depending on the application, different antennas may be used, such as patch antennas, slot antennas, or Yagi antennas.

[0090] In one embodiment, the tag may be configured as a passive backscatter system, where the tag transmits a modulated signal 204 to a detection antenna. 1~4 When a participant wearing a tag comes near the detection antenna, each tag antenna may receive a modulated signal 201 that is used to power up a processor within the tag.

[0091] Figure 2A, for example, illustrates an implementation in which a detection antenna mat 210 transmits a modulated signal 201 in a direction opposite to the direction in which an athlete wearing a bib tag is moving. Figure 2B shows a detection antenna 210 positioned to the side of an athlete's path of movement, where the detection antenna transmits a modulated signal toward the side of the athlete wearing the bib tag.

[0092] In response, the tag transmits information stored in the processor to the detection antenna based on a modulating back-scattered signal 2031. In this manner, the tag transmits a message 203 containing at least a unique ID that identifies the bib (and the wearer). 1-4 The detection antenna may pick up the transmitted message and transmit it to the decoder, which includes a processor for executing an algorithm 212 for determining a (split) time associated with the tag based on the time of detection and the signal strength of the received ID message. Subsequently, the processed data may be stored in a storage 214, e.g., a database, for further use.

[0093] Since the electromagnetic field generated by the antenna in the antenna mat is strongest above the (longitudinal) centerline 210 of the antenna, the decoder algorithm can accurately determine the time when the tag passed above the centerline of the antenna mat. By determining the time when the tag passed the centerline, it is necessary to measure the signal strength of the messages emitted by the tag. Therefore, it is very important that optimal signal transmission between the tag and the antenna mat is achieved. This can be achieved by a bib tag assembly comprising a spacer as provided herein.

[0094] As previously mentioned, spacer 110 is attached to support sheet 102 to provide a predetermined spacing between at least antenna 108 of tag 108 and the wearer's body.

[0095] 3A-3B are exploded perspective (FIG. 3A) and assembled side (FIG. 3B) views of an exemplary embodiment of a bib tag assembly 100. FIG. 3C is a rear perspective view of a spacer 110.

[0096] The tag 106 is attached, for example with an adhesive, to a support surface 1102 of a spacer 110. The spacer 110 should be attached to the support sheet 102. The spacer 110 is configured to clamp to the support sheet 102 to attach the spacer to the support sheet 102. The spacer 110 has a general U-shape with opposing clamping members 1104 and 1106 that receive the support sheet 102 and provide a gap S for clamping onto the support sheet 102.

[0097] The spacer 110 has a thickness T in a thickness direction 110T perpendicular to the length direction 110L and height direction 110H associated with the length L and height H of the tag 106 (see coordinates in FIG. 3A). The thickness defines a minimum value for the spacing D between the tag 106 and the wearer's body (not shown) across the support sheet 102 contained within the spacer 110. The tag 106 is placed on the front side of the support sheet 102, on the opposite side of the wearer's body. The shape of the spacer determines the inclination (of the antenna 108) of the tag 106 with respect to the wearer's body, which is here, for example, substantially parallel. The thickness of the spacer can be selected so that it has a thickness of about 10 mm, i.e. a spacer thickness that allows a good connection between the tag backscatter signal and the detection antenna in the UHF frequency range.

[0098] 3A and 3B, a portion of one of the clamping members 1104 is seen to be formed as a support panel that provides a support surface 1102 for supporting the tag 106. The support surface is recessed into the panel and provides edges 1110 for aligning the tag 106 with the spacer 110 and for protecting the (sides of) the tag 106.

[0099] As best seen in FIG. 3B, the clamping members 1104 and 1106 define a corrugated path in the support sheet 102 within the gap S from the entrance E of the gap S to the back surface B of the U-shape of the spacer 110. Optionally, one of the clamping members 1106 has a generally corrugated shape and includes ribs 1116 and 1118 on the back surface of the spacer (the tag 106 is the front surface). The other of the clamping members 1104 includes inward projections in the form of ribs 1112 and 1114 that define a portion of the corrugated path. Both ribs 1112 and 1114 are tubular and hollow, and optionally one or both of the ribs may be solid or filled with a material different from the remainder of the individual ribs or the entire spacer. It should be noted that the second ribs 1114 are larger than the first ribs 1112, providing a larger wave amplitude (deflection from a straight path about the support sheet 102) and a larger wavelength along the path. Thus, the coefficient of friction and clamping force of the clamp may be accurately determined. Also, more or fewer and / or differently shaped ribs may be provided.

[0100] At least the back surface B of the spacer 110 has resiliency, e.g., resiliency defined by one or more of material properties, thickness and shape (e.g., size and / or curvature of ribs 1116), to provide a clamping force to the clamp members 1104 and 1106.

[0101] The second rib 1112 is best seen from the entrance E in that it is provided with a plurality (here two) of spaced apart clamping portions C1 and C2 for providing locally enhanced clamping force on the support sheet 102. The clamping portions C1 and C2 are located distal to the individual corrugations (here ribs 1112 and 1114) from the entrance such that proximal to the individual corrugations (ribs 1112 and 1114), the gap S is relatively wide and wider than the thickness of the support sheet 102, and distally, the gap S is relatively narrow. Note that the second rib 1114 is larger than the first rib 1112, providing a larger corrugation amplitude (deflection of the support sheet 102 from a straight path) and a larger wavelength along the path. This can be used to control the coefficient of friction for (preventing) insertion and / or withdrawal and / or to control the clamping force of the clamp (clamping portion of the clamp), for example with respect to the length of one or more clamp members from the back surface B that define an arm for the clamping force (where "arm" is understood as a physical concept and not as a separate structure).

[0102] 3B and 3C, due to the corrugated shape of the clamping member 1106, the spacer 110 is provided with a rearward protrusion, here in the form of ribs 1116 and 1118, extending in a direction away from the tag 106 that defines at least a portion of the spacing D. Due to such a protrusion, only a small contact surface is provided for contacting the wearer's body, which may provide breathability and / or reduce or prevent interference from the spacer 110. The shape of the spacer may also determine the inclination of the tag 106 (its antenna 108) with respect to the wearer's body, e.g., substantially parallel as here.

[0103] The back surface B of the spacer 110 may be bordered by an edge of the support sheet 102, which may facilitate alignment of the spacer to the edge for alignment to the detection antenna (polarization of the signal), and thus to the edge of the tag (antenna).

[0104] The illustrated spacers 110 may be readily formed by extrusion techniques to be provided in any suitable length (along 110L) and have a consistent shape along that length. Thus, the mechanical and dielectric properties may be consistent along the tag 106. The length of the spacers 110 may also simplify alignment with the edges of the support sheet 102.

[0105] As described above, the tag may be attached to the spacer. At least a portion of the material of the spacer may be selected based on its dielectric properties. One or more dielectric layers may also be provided between the tag and the spacer. The antenna structure of the tag may be impedance matched (i.e., tuned) to the tag processor to account for the presence of dielectric material in the immediate vicinity of the antenna structure. For example, the vicinity of the body may be partially "screened" by a thin dielectric layer of relatively high dielectric constant, e.g., 10-50, in the immediate vicinity of the antenna structure. In one embodiment, such a layer may have a thickness of 0.05-5 mm. In another embodiment, the layer may include titanium dioxide. The layer may be formed of a polymer containing titanium dioxide particles as a filler to increase the dielectric constant of the layer to a desired value.

[0106] In a further embodiment (not shown), the dielectric layer between the tag and the wearer's body, e.g. between the tag and the spacer, may comprise multiple dielectric layers, e.g. a first dielectric layer of relatively low dielectric constant (e.g. 1-5) at the interface with the tag structure and a second dielectric layer of relatively high dielectric constant (10-50) on top of the first thin film dielectric layer at the interface with the spacer layer.

[0107] In one embodiment, the dielectric layer may be based on a polymer containing one or more dielectric fillers (e.g., titanium dioxide, silicon dioxide, aluminum dioxide, aluminosilicates, etc.) to form a dielectric layer of a desired dielectric constant. The dielectric constant of such a layer may be controlled by controlling the composition and / or concentration of the dielectric filler (mixture) in the polymer carrier layer.

[0108] FIG. 4 shows two alternative embodiments of spacers 110A and 110B, both of which are generally U-shaped for clamping onto a support sheet. Both spacers 110A and 110B have a constant shape along their respective lengths and have generally flat support surfaces 1102A and 1102B on the front side for tags (not shown) and ribs 1118A and 1118B on the rear side. In one illustrated embodiment, a single protrusion 1114A extends from one clamp member 1104A into the gap SA and SB, and in another illustrated embodiment, there are two protrusions 1112B and 1114B from the front clamp member 1104B. Both protrusions are optionally solid. Unlike the embodiment of FIGS. 3A-3C, here the ribs / corrugations 1118A and 1118B of the respective rear clamp members 1106A and 1106B are somewhat angular rather than smoothly curved. This may facilitate positioning and / or distributing dielectric material relative to the antenna of the tag.

[0109] Also, in both illustrated embodiments, the ends of each rear clamp member extend over the terminal ends of the front clamp members, thereby enabling the support sheet material to be locked in the respective gaps.

[0110] 5A-5C show the mounting and dismounting of the UHF tag assembly 101 with tag and spacer onto a support sheet / bib 102 to form the UHF bib-tag-timing assembly 100. FIG. 5A shows the provision of the tag assembly 101 provided herein with a UHF tag 106 and support sheet 102 supported on a spacer 110. For assembly, the support sheet 102 may be inserted into the gap of the spacer from one direction (arrow) to provide the assembled UHF bib-tag assembly 100 (FIG. 5B). The tag assembly 101 with tag 106 and spacer 110 is then mounted onto the support sheet 102 for use, and they need to be prevented from being inadvertently separated. Therefore, the removal along the same direction (arrow in FIG. 5A) may require significant force by the clamp. However, the tag assembly 101 comprising the tag 106 and the spacer 110 can be relatively easily removed from the support sheet 102 by pulling the parts 101 and 102 apart vertically along the elongation direction L of the spacer 110. The tag assembly 101 and / or the support sheet 102 can then be reused or recycled separately.

[0111] 6 shows a UHS bib-tag assembly 600 comprising a tag assembly 601 attached to a bib 602, the tag assembly comprising a tag 606 and a spacer 610 according to principles described herein. In this bib-tag assembly 600, the (antenna of) tag 606 is aligned generally vertically along a vertical edge of the bib 602. Such an embodiment is particularly useful, for example, when the signal from the detection antenna is vertically polarised.

[0112] 7A and 7B show another embodiment 700 of a UHS bib-tag assembly, comprising a tag 706 and a spacer 710 attached to a bib 702 provided with an optional wearer identifier 704. In this embodiment, the spacer again has a general U-shape, but the aspect ratio length:width is reversed compared to the previously shown embodiment, and the tag 706 is arranged with its length direction L perpendicular to the extension direction of the back surface B of the spacer, instead of along the back surface. FIG. 7B is a side view of the spacer 710, similar to FIG. 3B. The spacer 710 is corrugated, but in terms of its length, the clamp is more corrugated. Also, an optional bridge 7120 is placed between the two corrugations 7118 / ribs 7120, thus strengthening a portion of the clamp member 7106, thereby increasing the clamping force for one or more of the most proximal clamping portion Cp1 or the two most proximal clamping portions Cp1 and Cp2. The bridges may optionally be recessed behind the apex of the rib 7118 to reduce the contact surface with the wearer's body. Such bridges may provide a tubular portion defining the lumen Lum, as shown. More or fewer such bridges may be provided. The backsides and / or apexes of the ribs 7118 determine the thickness T of the spacer and the inclination of the tag 706 (antenna) with respect to the wearer's body, e.g., substantially parallel as shown here. Optionally, three or more ribs 7118 may define a common plane. Also, protrusions may be provided that may define a common plane to determine such inclination.

[0113] FIG. 8 illustrates another embodiment of a spacer 810 for use in a UHF bib tag assembly provided herein. The spacer 810 is generally U-shaped providing opposing clamping members 8104 and 8106. As before, the clamping members 8104 and 8106 are corrugated and provide ribs 8118 on the rear surface of the spacer 810. The spacer 810 has a consistent shape along its respective length. The spacer 810 provides a support surface 8102 for the tag 806 (shown diagrammatically in dashed lines). The support surface 8102 is provided by a plurality of substantially coplanar surface portions, here a first surface portion 8102A and a second surface portion 8102B spaced apart from one another by an opening 8120. Optionally, the first surface portion 8102A and the second surface portion 8102B are provided by surface portions of the clamping member 8104 (of the corrugated ribs 8112 and 8114) and a plurality of protrusions in the form of ribs 8122. The ribs 8122 are arranged along the length direction 810L of the spacer and spaced apart along the height direction (height direction, i.e. height direction 810H) of the spacer 810. The openings 8120 between the ribs may be wider in the height direction 810H than the height of the ribs 8122. The ribs 8122 extend from the clamping member 8104 in the thickness direction 810T away from the gap S. Here, the protrusions 8122 are arranged in recesses formed by the corrugated ribs 8112 and 8114 of the clamping member 8104 of the spacer. As an option, the ribs 8122 have a longer protrusion length from the clamping member 8104 (perpendicular to the support surface 8102 / thickness direction 810T) than a height perpendicular to the protrusion length (height direction 810H), and thus the ribs 8122 are relatively thin. The ribs 8122 function as support ribs that support the tag 806 on the support surface 8102, particularly against deformation in a direction perpendicular to the support surface 8102. The ribs 8122 also provide an adhesive surface for fixing the tag 806, while leaving an empty space between the support structure 8104 and the support structure 8122. The ribs 8122 thus separate the tag from the clamping member 8104 and reduce the amount of spacer material close to the support surface and the tag supported thereon.Such an embodiment that allows for a reduction in the spacer material reduces the effective dielectric constant of the spacer 810 in close proximity to a tag (antenna) on the support surface 8102. Thus, the detuning effect of the spacer on the tag may be reduced.

[0114] As can be seen in Figures 3A and 3B, 4, 7B and 8, the amplitude of the corrugations may be such that at least two corrugations / ribs (1118, 1118A, 1118B, 7118) provide the spacer with a substantially equal thickness T.

[0115] The present disclosure is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims.

[0116] Elements and aspects discussed with respect to or in connection with a particular embodiment may be suitably combined with elements and aspects of other embodiments, unless expressly stated otherwise.

Claims

1. A UHF sports timing bib tag assembly (100, 600, 700), comprising: a support sheet (102, 602, 702) attached to the wearer's body or clothing, such as a bib, said support sheet (102, 602, 702) preferably including an identifier; a tag (106, 706, 806) for being supported by said support sheet, said tag having a dipole antenna (108) and configured to transmit a UHF signal (203) to a receiver (210); and a spacer (110, 710, 810) configured to be attached to the support sheet, the spacer (110, 710, 810) having or defining a thickness (T) to provide a predetermined spacing along the antenna between the antenna of the tag and the body of the wearer; Equipped with wherein the tag is attached to the spacer; and at least a portion of the spacer has a generally U-shape with opposing clamping members (1104, 1106, 7104, 7106, 8104, 8106) that receive the support sheet (102, 602, 702) and provide a gap (S, SA, SB) for clamping onto the support sheet;

2. the tag (106, 706, 806) is elongate with a length (L) and a height (H), and along the length of the tag the spacing is in the range of 2 to 15 mm, in particular in the range of 4 to 8 mm, for example in the range of 5 to 6 mm; and / or The tag is elongated having a length (L) and a height (H), and the spacer has or defines a thickness (T) along the length of the tag at the location of the tag in the range of 2 to 15 mm, in particular in the range of 4 to 8 mm, for example in the range of 5 to 6 mm. The tag assembly (100, 600, 700) of claim 1.

3. at least one of the clamping members (1104, 1106, 7104, 7106, 8104, 8106) provides a support surface (1102, 1102A, 1102B, 8102) for supporting the tag (106, 706, 806), and the tag is disposed on the support surface, wherein the support surface is provided at least in part by a plurality of support surface portions (8102A, 8102B) spaced apart by one or more openings (8120), and the plurality of support surface portions may be coplanar; The tag assembly (100, 600, 700) according to claim 1 or 2.

4. The tag assembly (100, 600, 700) of any one of claims 1 to 3, wherein the clamping member (1104, 1106, 7104, 7106, 8104, 8106) defines a corrugated path for the support sheet (102, 602, 702) from an entrance of the gap (S) in at least a portion of the gap (S).

5. 5. The tag assembly of claim 4, further comprising a clamping portion for applying a locally increased clamping force on a support sheet, the clamping portion being disposed distal to a corrugation providing at least a portion of the corrugated path from the inlet.

6. the spacer comprises at least one tubular portion extending along at least a portion of the tag, preferably along the length of the tag; and / or at least one of the clamping members has a generally wavy shape along at least a portion of the tag, preferably along the length of the tag, which provides ribs that define at least a portion of the thickness of the spacer; The tag assembly according to any one of claims 1 to 5.

7. The tag assembly of any one of claims 1 to 6, wherein the spacer is substantially a polymer extrusion, such as polyamide or polyethylene.

8. The tag assembly according to any one of claims 1 to 7, wherein at least a part of the spacer, in particular at least a part of at least one of the clamping members, has a wall having a thickness in the range of 0.1 to 2.0 mm, preferably in the range of 0.2 to 1.0 mm, for example in the range of 0.2 to 0.6 mm.

9. the tag comprises at least one metallic dipole antenna structure and the spacer is disposed at least partially within the vicinity of the antenna structure and / or on top of the dipole antenna structure; and / or the tag comprises a processor connected to a thin metal antenna structure, and the tag is disposed at least partially across the spacer; The tag assembly according to any one of claims 1 to 8.

10. The tag assembly of any one of claims 1 to 9, further comprising at least a dielectric layer disposed between the tag and the spacer, wherein the dielectric layer comprises a high dielectric material, and the tag comprises a processor, the processor being connected to at least one thin metal film antenna structure that is impedance matched to the processor taking into account the presence of the dielectric layer in close proximity to the antenna structure.

11. The tag assembly according to any one of claims 1 to 10, wherein the support sheet is provided with a visual identifier, in particular a printed identifier, on a first side, and the spacer is attachable or attached to the support sheet, such that the tag is located on or in front of the first side, wherein the spacer is preferably located partly on or in front of the first surface and partly on or behind a second side of the support sheet opposite the first side.

12. The bib tag assembly of any one of claims 1 to 11, wherein the spacer is removably attachable to the support sheet together with the tag or is removably attached to the support sheet.

13. The bib tag assembly according to any one of claims 1 to 12, wherein at least a part of the spacer is formed as an (extruded) corrugated product, for example a corrugated sheet.

14. 14. The bib tag assembly of claim 13, wherein the corrugated material comprises one or more elongated corrugations along a longitudinal axis of the spacer, where a cross-sectional depth of the elongated corrugations defines a separation distance between the athlete's body and the UHF tag, and / or a first clamping member comprises a first set of elongated corrugations and a second, opposing, clamping member comprises a second set of elongated corrugations opposite the first set of elongated corrugations.

15. 1. Use in sports timing of a spacer (110, 710, 810) attached to a support sheet (102, 602, 702) attached to a wearer's body or clothing, such as a bib, preferably a support sheet carrying a visual identifier, to provide a predetermined spacing between dipole antennas of tags (106, 706, 806) configured to transmit UHF signals (203) to a receiver (210), comprising: At least a portion of the spacer has a general U-shape with opposing clamping members (1104, 1106, 7104, 7106, 8104, 8106) that provide a gap (S, SA, SB) for receiving and clamping onto the support sheet (102, 602, 702). The above uses.

Images