WO1998024048A1 - Etiquette repondeuse - Google Patents

Etiquette repondeuse Download PDF

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Publication number
WO1998024048A1
WO1998024048A1 PCT/GB1997/003228 GB9703228W WO9824048A1 WO 1998024048 A1 WO1998024048 A1 WO 1998024048A1 GB 9703228 W GB9703228 W GB 9703228W WO 9824048 A1 WO9824048 A1 WO 9824048A1
Authority
WO
WIPO (PCT)
Prior art keywords
tag
station
data
tag according
data storage
Prior art date
Application number
PCT/GB1997/003228
Other languages
English (en)
Inventor
Ian Macdonald Green
Original Assignee
Central Research Laboratories Limited
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 Central Research Laboratories Limited filed Critical Central Research Laboratories Limited
Priority to EP97913340A priority Critical patent/EP0951688A1/fr
Priority to AU50636/98A priority patent/AU5063698A/en
Priority to JP52441498A priority patent/JP2001504624A/ja
Publication of WO1998024048A1 publication Critical patent/WO1998024048A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record 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
    • G06K19/067—Record 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
    • G06K19/07—Record 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional 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
    • G06K19/07773—Antenna details
    • G06K19/07788—Antenna details the antenna being of the capacitive type
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record 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
    • G06K19/067—Record 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
    • G06K19/07—Record 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
    • G06K19/0701—Record 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 at least one of the integrated circuit chips comprising an arrangement for power management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record 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
    • G06K19/067—Record 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
    • G06K19/07—Record 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10326—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the very-near field type, e.g. capacitive
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/1097—Optical sensing of electronic memory record carriers, such as interrogation of RFIDs with an additional optical interface

Definitions

  • the present invention relates to an electronic interrogation system which includes a transponder which can be attached to, or embedded in, an object for providing information relating to such object when interrogated by an interrogation station.
  • tags for external attachment and are known as transponder tags.
  • rf transmissions e.g. microwave frequencies
  • An important parameter of such tags is their operating distance, which may be from a few centimetres to metres.
  • a problem with rf is the complexity required in the construction of the tag; in particular it requires an rf antenna, usually in the form of a helix, formed on the tag.
  • bar code readers for deriving information from objects to which bar codes are attached which operate by shining a beam of light onto the bar code from a close distance and by analysing the reflected light.
  • transponder tag having an operating range of millimetres and which can provide information automatically without requiring a swiping action.
  • tags may, for example, be embedded in the surface of an object, for example a CD jewel case.
  • the present invention as claimed in the attached claims provides tag for attachment to or embedding in an object and for providing information of such object when interrogated by an interrogation station which is simple and inexpensive.
  • tags according to the invention may be manufactured inexpensively and may for example be based on a silicon die having a photosensitive area for powering the tag, and a metallised area for feeding back capacitively, information signals.
  • bond pads which are normally necessary for tags based on an rf method of operation
  • the silicon can be fabricated with a protective covering over the whole area of the die.
  • the die area might be 500 micrometres square, which would allow 125,000 unique tags to be manufactured from one 8" silicon wafer.
  • Each manufactured die constitutes a tag, and may for example be embedded in the plastic surface of a finished product, for example the housing of an electrical item sold from a store or supermarket or a CD jewel case.
  • the interrogation station (tag reader) according to the invention, includes a light source which may be an infrared LED, to couple power to the tag, and preferably one or more capacitive plates to sense the voltage signal from the tag, the voltage being time varying in accordance with the information stored to represent a serial data stream.
  • a light source which may be an infrared LED, to couple power to the tag, and preferably one or more capacitive plates to sense the voltage signal from the tag, the voltage being time varying in accordance with the information stored to represent a serial data stream.
  • the information may be stored in the tag at the time of production, for example in ROM form wherein a metallisation mask is patterned to form the desired code.
  • the information is stored in a serial shift register, so that the information can be read out serially for energisation of the capacitive plate means, so that the plate provides a time varying voltage.
  • the code might be stored on the metalUsation mask, and used to select whether each stage of a shift register is set (to 1) or reset (to 0) on power up.
  • the information controls the initial state of the register.
  • the bit pattern rotates around the register indefinitely.
  • identification information can be written into the tag subsequent to production of the tag, the tag including suitable means for capturing the incident data from the light source.
  • the light source of the interrogation station is pulsed or otherwise suitably modulated to provide timing pulses to the tag in order to synchronise operation of the tag with that of the station, so that data transmitted from the tag is accurately synchronised to the station.
  • the station may provide with the timing pulses information for storage or for initiating certain operations of the tag.
  • the preferred light excitation of the tag is at infra-red wavelengths, where silicon is most sensitive.
  • the tag may be invisibly embedded below the surface of a product. Its covering should be at least partially transmissive to infrared, but may for example be overprinted.
  • the present invention places no restrictions on the appearance of the product it protects. Since the tag may be very small in dimensions, the product may have a degree of flexibility. Since as preferred the tag comprises a silicon die with no bond wires or exposed aluminium, it will be much better protected from corrosion and moisture than conventional silicon die.
  • Figure l is a schematic plan view of a tag according to the invention, comprising a silicon die
  • Figure 2 is a circuit diagram of the circuit of the tag of Figure 1 ;
  • Figure 3 is a circuit diagram of the circuit of a tag reader; and
  • Figure 4 is a circuit diagram of a tag constructed in accordance with a second embodiment of the invention.
  • a tag comprises a silicon substrate 2 on an upper surface of which is formed circuitry 4 by CMOS processes.
  • Circuitry 4 includes relatively large rectangular capacitive plates 6, 7 positioned on either side of a row of three photosensitive strips 8. For a die whose dimensions are 500 microns on a side, there is 100 microns free around each edge to allow for damage. That leaves an area of 300 microns square in the middle.
  • Each capacitive plate 6,7 is 300 by 100 microns, leaving a third strip of 300 by 100 microns for the photo sensors 8.
  • Most of the circuitry described below is constructed under the plates. If the circuitry requires top level metallisation - as used by the plates - then some thin lines of metal may need to be separated from the plates and used for circuitry interconnections.
  • plate 7 can be connected to the silicon substrate as a ground reference, and as unmetalUsed silicon is conductive, plate 7 may be effectively formed by the unmetallised silicon area and this need not, in practice, be covered with metal.
  • the internal CMOS circuitry of the tag is shown as comprising the photo sensors 8 connected in series and providing potentials V ⁇ )T) on supply rail 10 and Vgs on supply rail 12 when irradiated.
  • a photo sensitive diode 14 connected in series with a resistor 15 across the supply rails, senses the light irradiation, and as a result produces a current, which in turn develops a voltage across the resistor 15.
  • An amplifier 16 which may be a standard digital inverter, detects the voltage across resistor 15 and is operative to speed up the voltage transition at its input, and give a clean clock edge. Amplifier 16 provides an output clock signal CK in response to pulsed light irradiation.
  • the clock CK is coupled to the clock input of a serial data register 18 for shifting information data held in the register, one stage per clock pulse.
  • the data may be 64 bits in length, although longer sequences may be employed, particularly if the data is stored and transmitted in encrypted form.
  • An output stage of the shift register 18 provides a data Q output on an output line 20 to one (6) of a pair of capacitively coupled plates 6,7, and is fed back to an input stage of the register on Une 22, whereby to recycle continually the data through the register 18.
  • the data held in the register 18 is normally programmed therein at the time of formation of the CMOS circuitry 4.
  • Capacitive plate 7 is coupled to supply rail 12.
  • circuitry for a tag reader comprises capacitive plates 30, 32, each 1 cm square positioned side by side for sensing the voltage variations by capacitive coupling when plates 6, 7 of the tag pass close by the plates 30, 32. Plates 30, 32 are connected to the inverting and non inverting inputs of amplifier 34, whose output is coupled to a synchronous decoder 36, which provides an output data signal representing the information provided by the tag.
  • the tag reader in addition comprises an infrared LED light source 38 which is periodically energised by timing generator 40 in order to transmit a stream of timing Ught pulses to the tag. Whilst the data rate of the stream may be as high as 100 kbits per second, in the present embodiment the light is pulsed off for 1 microsecond every 100 microseconds, giving a data rate of 10 kbits/second. Manchester coding is preferred for robustness, giving an overall data rate of 5 kbits/second. Timing generator 40 is also coupled to synchronous decoder 40 in order to provide timing slots in which incoming data from plates 30, 32 is analysed.
  • the transponder tag is essentially a "read only" tag.
  • the tag may include a WORM (Write Once Read Many times) data store.
  • the internal circuitry 4 of the tag of Figure 4 comprises the photo sensors 8 connected in series and providing potentials VDD on supply rail 10 and Vss on supply rail 12 when irradiated with Ught.
  • a resistor R10 and capacitor CIO are connected in series across the supply rails 10, 12 a transistor TRIO is connected in parallel across the capacitor CIO.
  • the input of the operational amplifier 16 is connected at the junction of the photo sensitive diode 14 and resistor 15 and provides an output clock pulse CK to the clock input of a shift register of the CMOS logic circuits 4.
  • a second operational amplifier 25 is connected between the junction of the diode 14 and resistor 15 to provide data input signals to the data input of the CMOS logic circuits 4.
  • the output Q and inverted output Q are supplied respectively to the plates 6 and 7.
  • the photo sensors 8 and diode 14 are irradiated with pulsed light, and on each clockpulse CK generated by the ampUfier 16, the data input of the CMOS logic block is sampled. Immediately the reset output is pulsed high by the transistor TRIO and the capacitor CIO discharges. When the next clock pulse CK is generated, the state of the data input Une to the CMOS circuits will depend upon how long capacitor CIO has had to charge up. If the clock pulses are close together, the voltage across the capacitor CIO will be low; if the clock pulses are far apart the voltage across CIO will be high.
  • the irradiation of the sensors 8 and diode 14 with a first sequence of light pulses (which ideally is in the infra red spectrum) effectively generates a clock pulse which operates the shift register 18 and coded data is input in to the shift register. Thereafter when it is required to read the data from the shift register 18 the irradiation of sensors 8 and diode 14 with pulsed light generates clock pulses to shift the data in the register and generate a voltage at plates 6 and 7.
  • the circuitry of the CMOS logic circuits may include data storage and means to check that the input data is not corrupt. It may also include means, such as a Non Volatile Random Access Memory (NVRAM) or WORM (Write Once Read Many times) storage so that subsequent unauthorised writing of data is prevented.
  • NVRAM Non Volatile Random Access Memory
  • WORM Write Once Read Many times

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Etiquette répondeuse servant à transmettre des informations à une station d'interrogation et comprenant des moyens photosensibles (8, 14) servant à recevoir de la lumière depuis une station d'interrogation, des moyens de circuit (4) possédant des moyens de mémorisation de données (18) servant à mémoriser des données et des moyens d'électrodes (6, 7) servant à effectuer le couplage capacitif de l'étiquette à ladite station. Les moyens photosensibles (8, 14) réagissent à de la lumière pulsée émise par ladite station et servent à exciter ledit circuit (4), ainsi qu'à générer des impulsions permettant à ladite station de lire de façon capacitive des données provenant desdits moyens de mémorisation de données (18).
PCT/GB1997/003228 1996-11-26 1997-11-26 Etiquette repondeuse WO1998024048A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97913340A EP0951688A1 (fr) 1996-11-26 1997-11-26 Etiquette repondeuse
AU50636/98A AU5063698A (en) 1996-11-26 1997-11-26 Transponder tags
JP52441498A JP2001504624A (ja) 1996-11-26 1997-11-26 トランスポンダータグ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9624517.0A GB9624517D0 (en) 1996-11-26 1996-11-26 Identification mechanism
GB9624517.0 1996-11-26

Publications (1)

Publication Number Publication Date
WO1998024048A1 true WO1998024048A1 (fr) 1998-06-04

Family

ID=10803466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/003228 WO1998024048A1 (fr) 1996-11-26 1997-11-26 Etiquette repondeuse

Country Status (5)

Country Link
EP (1) EP0951688A1 (fr)
JP (1) JP2001504624A (fr)
AU (1) AU5063698A (fr)
GB (1) GB9624517D0 (fr)
WO (1) WO1998024048A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093644A1 (fr) * 1998-06-09 2001-04-25 Motorola, Inc. Badge d'identification radiofrequence avec antenne integree a un article
JP2002053204A (ja) * 1996-12-16 2002-02-19 Confidence Internatl Ab 電子的識別タグ
WO2022208287A1 (fr) * 2021-03-30 2022-10-06 Cilag Gmbh International Conditionnement à alimentation passive pour adjuvants de tissus
US11504125B2 (en) 2021-03-30 2022-11-22 Cilag Gmbh International Tissue thickness compensating adjuncts having regions of differential expansion
US11602341B2 (en) 2021-03-30 2023-03-14 Cilag Gmbh International Compressible adjuncts with drug release features
US11627961B2 (en) 2021-03-30 2023-04-18 Cilag Gmbh International Compressible adjuncts with different behavioral zones
US11786240B2 (en) 2021-03-30 2023-10-17 Cilag Gmbh International Using smart packaging in adjusting use of tissue adjuncts
US11839374B2 (en) 2021-03-30 2023-12-12 Cilag Gmbh International Compressible adjuncts with drug release features
US11849950B2 (en) 2021-03-30 2023-12-26 Cilag Gmbh International Compressible adjuncts with drug dosage control features
US11850332B2 (en) 2021-03-30 2023-12-26 Cilag Gmbh International Method for treating tissue
US11864765B2 (en) 2021-03-30 2024-01-09 Cilag Gmbh International Compressible adjuncts with fluid control features
US11896226B2 (en) 2021-03-30 2024-02-13 Cilag Gmbh International Compressible adjuncts with healing-dependent degradation profile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007225767A (ja) * 2006-02-22 2007-09-06 Nec Corp 受光装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056064A1 (fr) * 1979-07-03 1982-07-21 GAO Gesellschaft für Automation und Organisation mbH Unité de commutation
US5345231A (en) * 1990-08-23 1994-09-06 Mikron Gesellschaft Fur Integrierte Mikroelectronik Mbh Contactless inductive data-transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056064A1 (fr) * 1979-07-03 1982-07-21 GAO Gesellschaft für Automation und Organisation mbH Unité de commutation
US5345231A (en) * 1990-08-23 1994-09-06 Mikron Gesellschaft Fur Integrierte Mikroelectronik Mbh Contactless inductive data-transmission system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002053204A (ja) * 1996-12-16 2002-02-19 Confidence Internatl Ab 電子的識別タグ
EP1093644A1 (fr) * 1998-06-09 2001-04-25 Motorola, Inc. Badge d'identification radiofrequence avec antenne integree a un article
EP1093644A4 (fr) * 1998-06-09 2002-11-20 Motorola Inc Badge d'identification radiofrequence avec antenne integree a un article
US11627961B2 (en) 2021-03-30 2023-04-18 Cilag Gmbh International Compressible adjuncts with different behavioral zones
US11504125B2 (en) 2021-03-30 2022-11-22 Cilag Gmbh International Tissue thickness compensating adjuncts having regions of differential expansion
US11602341B2 (en) 2021-03-30 2023-03-14 Cilag Gmbh International Compressible adjuncts with drug release features
WO2022208287A1 (fr) * 2021-03-30 2022-10-06 Cilag Gmbh International Conditionnement à alimentation passive pour adjuvants de tissus
US11786240B2 (en) 2021-03-30 2023-10-17 Cilag Gmbh International Using smart packaging in adjusting use of tissue adjuncts
US11839374B2 (en) 2021-03-30 2023-12-12 Cilag Gmbh International Compressible adjuncts with drug release features
US11849950B2 (en) 2021-03-30 2023-12-26 Cilag Gmbh International Compressible adjuncts with drug dosage control features
US11850332B2 (en) 2021-03-30 2023-12-26 Cilag Gmbh International Method for treating tissue
US11864765B2 (en) 2021-03-30 2024-01-09 Cilag Gmbh International Compressible adjuncts with fluid control features
US11896226B2 (en) 2021-03-30 2024-02-13 Cilag Gmbh International Compressible adjuncts with healing-dependent degradation profile

Also Published As

Publication number Publication date
AU5063698A (en) 1998-06-22
GB9624517D0 (en) 1997-01-15
EP0951688A1 (fr) 1999-10-27
JP2001504624A (ja) 2001-04-03

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