GB2492944A - A wearable contactless radio frequency identification (RFID) tag - Google Patents

A wearable contactless radio frequency identification (RFID) tag Download PDF

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Publication number
GB2492944A
GB2492944A GB201110584A GB201110584A GB2492944A GB 2492944 A GB2492944 A GB 2492944A GB 201110584 A GB201110584 A GB 201110584A GB 201110584 A GB201110584 A GB 201110584A GB 2492944 A GB2492944 A GB 2492944A
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GB
United Kingdom
Prior art keywords
text
lt
gt
tag
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB201110584A
Other versions
GB201110584D0 (en
Inventor
Benjamin Nicholas Parton
Original Assignee
Benjamin Nicholas Parton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benjamin Nicholas Parton filed Critical Benjamin Nicholas Parton
Priority to GB201110584A priority Critical patent/GB2492944A/en
Publication of GB201110584D0 publication Critical patent/GB201110584D0/en
Publication of GB2492944A publication Critical patent/GB2492944A/en
Application status is Withdrawn legal-status Critical

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773Antenna details
    • G06K19/07777Antenna details the antenna being of the inductive type
    • G06K19/07779Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07758Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
    • G06K19/07762Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag the adhering arrangement making the record carrier wearable, e.g. having the form of a ring, watch, glove or bracelet
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773Antenna details

Abstract

A passive contactless RFID device comprises: an antenna for receiving a radio frequency signal from a reader and for transmitting a radio frequency signal to a reader; an integrated circuit (IC) or chip connected to the antenna for storing identification data and for processing and sending signals to the antenna; wherein the antenna is a helically-wound wire coil having multiple turns. The antenna is a compact coil which is sufficiently small to allow the device to be incorporated into wearable objects such as a watch wrist-strap or a finger ring. Uses of the device include as an entry tag, swipe-card, travel card, payment card or identification means.

Description

INTELLECTUAL

. . PROPERTY OFFICE Application No. GBI 110584.8 RTINI Dale:23 September 2011 The following terms are registered trademarks and should be read as such wherever they occur in this document: MIFARE. DESFire Intellectual Property Office is an operaling name of Ihe Patent Office www.ipo.gov.uk A wearable passive Contactiess Radio Frequency Identification (REID) Tae Technical Back2round The present invention provides a new design for a compact coil (Fig. 1 & 2) for use with certain types of existing High-Fmquency contactless Radio Frequency Identification (RFID) entry tag/swipe-card/travel card/paymenthdentification systems and infrastructures.

-Where the RFJD tag cannot have it's own power source (totally passive) and has to be used in close proximity to the reader (approx 10cm or less, usually 1-6cm) in order to work effectively because the signal strength generated by the reader/base station/touch-point/door entry point, must be restricted to minimise the possibility of interference with other Near Field Communication (NEC) devices, and where data security/privacy is a concern.

Disclosure of the Invention

The present invention is as defined in the accompanying claims.

The coil is designed to work with existing passive chip designs that operate with a Baudrate (Kbits/s) 106-848 at 13.56 MFli where the coil alone provides the required power to the chip and doubles as an antenna to communicate with the reader. e.g. those that adhere to the ISO/IEC 14443 Type A contactle.ss smart card standard, without the need to adjust or upgrade the reader.

The layout of the passive tag coil designs (fig. l& 2) are determined by the lack of an integrated battery in the tag and therefore the operational current required by the RFID chip (fig. 1,3) and by the signal strength and frequency being used/generated by the reader.

The new type of coil design (fig. I & 2) uses a unique layout (fig. I,l & 2,1) to reduce the cross-sectional area of the coil (fig. 1,2) and consequently the size of the whole tag without hindering it's ability to be powered by, or communicate with, the reader.

This in turn allows for a variety of new compact exterior forms (the overall shape of the body of material protecting the coil and chip). including smaller, more convenient, wearable tags. For example rings you can wear on your finger (fig. 3-7) and Watch widgets that can be retrofitted to any watchst rap without getting in the way or hindering the genera] use of the watch (Figs. 8-12).

The coil is made of length of enamelled copper wire 11 24mrn±Smrn (fig, 1,1) wound helically! vertically a specific number of turns (fig. 2,1), that are capable of being ananged parallel to the surface of the reader or touch-in' point (fig. 13 & 14). This is in contrast to the spirally-wound anangement of coils used in existing entry-card' or travel-card' tags.

Depending the final exterior shape of the tag required, the coil can he wound into different shapes e.g. square, circle, triangle or rectangular format (as long as they have a circumference or perimeter of 64mm±2mmm. Each turn in the coil butts up to the last without a gap (fig. 2). The coils can be large enough to site a standard ISO/IEC 14443 Type A 13.56 MHz contactiess smart card chip at its centre (in this case a NXP MIFARE DESFire EVI chip) (fig. 1,3) The coil (fig. 13,2 & 14,2) can then be set in solid plastic (fig.13,1 & 14,1) for increased protection without hindering it's operational effectiveness, and when completely surrounded in plastic rather than laminated in a flat bendab]e form the components are is far less susceptible to damage or malfunction from being over flexed. And once you are wearing it cannot be misplaced, forgotten and much less likely interferer with, react to or with any other NEC devises or tags you may be carrying.

In accordance with one embodiment, the invention provides a watchstrap widget (fig. 8- 12) consists of the aforementioned REID chip and coil (fig. 14.1) encased in silicone rubber that can be fitted to any watchstrap (fig. 34,2). The consistency of the rubber is firm enotgh to provide protection to the electronic components inside the main body of the widget while allowing the fastening strap to stretch and grip around the majority of watchstrap thicknesses and widths. It is thus held securely in place and is not susceptible to slipping.

Claims (1)

  1. <claim-text>Claims 1) A passive contactiess radio frequency identification (REID) tag tbr identifying the tag to a reader, which device comprises: an antenna for receiving a radio frequency signal from a reader and for transmitting a radio frequency signal to a reader; and an integrated circuit connected to the antenna for storing data identifying the tag and for processing signals received from the antenna and for sending signals to the antenna for transmission to a reader; wherein the antenna is a helically wound wire coil having multiple turns of a circumference of 64mm ± 12mm.</claim-text> <claim-text>2) A tag as claimed in claim I, wherein the antenna includes 16 to 20 turns, i.e. 16,17, 18, 19 or 20 turns, especially 18 turns.</claim-text> <claim-text>3) A tag as claimed in claim I or claim 2, wherein the wire in the antenna has a diameter of 0.1 to 0.2, e.g. about 0.15mm.</claim-text> <claim-text>4) A tag as claimed in any preceding claim, wherein the coil is a coil of insulated wire without gaps between the turns.</claim-text> <claim-text>5) A tag as claimed in any preceding claim, wherein the wire is insulated copper wire, especially enamel-coated copper wire.</claim-text> <claim-text>6) A tag as claimed in any preceding claim, wherein the helically wound wire coil has an axis that is perpendicular to the plane of each turn.</claim-text> <claim-text>7) A tag as claimed in any preceding claim, wherein the depth of the helically wound wire coil between the top thm and the bottom turn of the coil is 3.5 to 4mm, e.g. about 3.8mm.</claim-text> <claim-text>8) A tag as claimed in any preceding claim, wherein the helically wound wire coil is rectangular (including square), circular or triangular in cross-section taken perpendicular to the axis of the helix.</claim-text> <claim-text>9) A tag as claimed in claim 8, wherein the helically wound wire coil is rectangular, in cross-section and one side of the rectangle has a length of 18-22mm, e.g. 19- 21mm, for example 20±0.5 mm and the other side of the rectangle has a length of 10-14mm, e.g. 11-13mm, for example 12±0 5mm.</claim-text> <claim-text>10) A tag as claimed in any preceding claim, wherein the length of the wire in the coil is ll24rnm±lBmm.</claim-text> <claim-text>11) A tag as claimed in any preceding claim, wherein the integrated circuit operates at a baudrate of 106-848 Kbits/s at 13.56 MHz.</claim-text> <claim-text>12) A tag as claimed in any preceding claim, which is embedded in a rigid plastics material or iii a rubber material, e.g. silicone rubber.</claim-text> <claim-text>13) A band for encircling another object, especially for encircling a part of a person's hand, e.g. a finger, or wrist or for encircling an article worn on a person's hand or wrist e.g. a watchstrap. which band carries a tag as claimed in any preceding claim.</claim-text> <claim-text>14) A band as claimed in claim 13, which is a wrist strap or band.</claim-text> <claim-text>15) A band as claimed in claim 13, which is configured to be worn ainund a wrist strap, e.g. around a wristwatch strap.</claim-text> <claim-text>16) A band as claimed in any of claims 13 to 15, wherein pail of the band has a flat front face and the coil is embedded under the flat front face with each turn of the coil lying generally parallel to the front face.</claim-text> <claim-text>17) A band as claimed in claim 13, which is a finger ring.</claim-text> <claim-text>18) A band as claimed in claim 14, wherein the ring has a flat front face, e.g. in the manner of a signet ring, and the coil is embedded under the flat front face with each turn of the coil lying generally parallel to the front face.</claim-text> <claim-text>19) A band as claimed in any of claims 13-18, wherein the band is made of mouldable material, especially a stiff natural or artificial rubber, e.g. silicone rubber or a rigid plastic material.</claim-text>
GB201110584A 2011-06-22 2011-06-22 A wearable contactless radio frequency identification (RFID) tag Withdrawn GB2492944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201110584A GB2492944A (en) 2011-06-22 2011-06-22 A wearable contactless radio frequency identification (RFID) tag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201110584A GB2492944A (en) 2011-06-22 2011-06-22 A wearable contactless radio frequency identification (RFID) tag

Publications (2)

Publication Number Publication Date
GB201110584D0 GB201110584D0 (en) 2011-08-03
GB2492944A true GB2492944A (en) 2013-01-23

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Family Applications (1)

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GB201110584A Withdrawn GB2492944A (en) 2011-06-22 2011-06-22 A wearable contactless radio frequency identification (RFID) tag

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198351A (en) * 2013-04-24 2013-07-10 歌尔声学股份有限公司 Ring-cylindrical electronic tag
US9501143B2 (en) 2014-01-03 2016-11-22 Eric Pellaton Systems and method for controlling electronic devices using radio frequency identification (RFID) devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004310714A (en) * 2003-04-04 2004-11-04 Tsunetsugu Kogyo Kk Annular flexible non-contact id system and manufacturing method thereof
WO2005050530A2 (en) * 2003-11-12 2005-06-02 Precision Dynamics Corporation Identification band with adhesively attached coupling elements
US20060187065A1 (en) * 2003-03-26 2006-08-24 Girvin Joshua M Non-reusable identification device
KR20070061348A (en) * 2005-12-08 2007-06-13 한국전자통신연구원 Smart card apparatus for personal authentication, terminal system for processing the smart card apparatus and method for personal authentication of the smart card apparatus
JP2007286214A (en) * 2006-04-14 2007-11-01 Casio Joho Kiki Kk Wearing band
WO2008063784A1 (en) * 2006-11-16 2008-05-29 Rcd Technology Inc. Method for manufacture of an rfid wristband
US20080238667A1 (en) * 2007-03-30 2008-10-02 Proxwear, Llc Clothing and Accessories that Operate Radio Frequency Identification Enabled Security Devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060187065A1 (en) * 2003-03-26 2006-08-24 Girvin Joshua M Non-reusable identification device
JP2004310714A (en) * 2003-04-04 2004-11-04 Tsunetsugu Kogyo Kk Annular flexible non-contact id system and manufacturing method thereof
WO2005050530A2 (en) * 2003-11-12 2005-06-02 Precision Dynamics Corporation Identification band with adhesively attached coupling elements
KR20070061348A (en) * 2005-12-08 2007-06-13 한국전자통신연구원 Smart card apparatus for personal authentication, terminal system for processing the smart card apparatus and method for personal authentication of the smart card apparatus
JP2007286214A (en) * 2006-04-14 2007-11-01 Casio Joho Kiki Kk Wearing band
WO2008063784A1 (en) * 2006-11-16 2008-05-29 Rcd Technology Inc. Method for manufacture of an rfid wristband
US20080238667A1 (en) * 2007-03-30 2008-10-02 Proxwear, Llc Clothing and Accessories that Operate Radio Frequency Identification Enabled Security Devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198351A (en) * 2013-04-24 2013-07-10 歌尔声学股份有限公司 Ring-cylindrical electronic tag
US9501143B2 (en) 2014-01-03 2016-11-22 Eric Pellaton Systems and method for controlling electronic devices using radio frequency identification (RFID) devices
US9746922B2 (en) 2014-01-03 2017-08-29 Eric Pellaton Systems and method for controlling electronic devices using radio frequency identification (RFID) devices

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Publication number Publication date
GB201110584D0 (en) 2011-08-03

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)