WO2013150119A1 - Rfid transponder with signalling device - Google Patents

Rfid transponder with signalling device Download PDF

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Publication number
WO2013150119A1
WO2013150119A1 PCT/EP2013/057145 EP2013057145W WO2013150119A1 WO 2013150119 A1 WO2013150119 A1 WO 2013150119A1 EP 2013057145 W EP2013057145 W EP 2013057145W WO 2013150119 A1 WO2013150119 A1 WO 2013150119A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
control unit
rfid transponder
rfid
predetermined period
Prior art date
Application number
PCT/EP2013/057145
Other languages
German (de)
French (fr)
Inventor
Siegfried Ritter
Steffen Rauer
Original Assignee
Sportident Gmbh
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
Priority to DE102012102941.5 priority Critical
Priority to DE201210102941 priority patent/DE102012102941A1/en
Application filed by Sportident Gmbh filed Critical Sportident Gmbh
Publication of WO2013150119A1 publication Critical patent/WO2013150119A1/en

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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
    • G06K19/0701Record 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
    • G06K19/0702Record 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 the arrangement including a battery
    • 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
    • G06K19/07701Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
    • G06K19/07703Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
    • 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

Abstract

The invention relates to a passive RFID transponder with a monitoring and control unit (01) and an energy store (04). The passive RFID transponder according to the invention is characterised in that it has a signalling device (08), which can be activated via the monitoring and control unit (01), for signalling the end of an RFID working cycle over a predetermined period, wherein the energy store (04) serves to feed the monitoring and control unit (01) over said predetermined period. The invention further relates to a method for operating such an RFID transponder.

Description

 RFID TRANSPONDER WITH SIGNALING DEVICE

The invention relates to a passive RFID transponder with a control and control unit and an energy store and to a method for operating such an RFID transponder.

A preferred field of use of passive RFID transponders is, for example, the detection of the passing of persons or objects at checkpoints. Passive RFID transponders draw their operating energy from the radio signals of a

Interrogator (transmitter). Due to lack of its own power supply passive RFID transponders are robust, maintenance-free ¬ and low-cost components that enable use in high volume applications. US 2008/0136596 AI includes a passive RFID tag comprising a sensor unit for detecting the environmental conditions of the tag, a volatile memory, a nonvolatile memory and a control unit which stores the data of the sensor unit in the volatile memory and these data under predetermined conditions transferred to the non-volatile memory. The RFID tag may include a power supply unit that powers the tag under predefined conditions. Furthermore, the RFID tag includes a power ¬ receiving unit which receives the supply voltage given by the RF signal, and a current monitoring unit comprising the

The strength of the received RF signal measures and, depending on the measured strength of the RF signal, supplies the RFID tag with power from the integrated power supply unit or with the power recovered from the RF signal. DE 10 200 4007 106 B4 shows a circuit arrangement for an RFID transponder with a receiving device for

Receiving an electrical control signal. Furthermore, a first memory means having a first output for storing a control state (Q) of the circuit arrangement in dependence on the control signal is present. Likewise, a Interconnected to the first output of the first memory means second storage means is provided with an output for keeping the STEU ¬ erzustands case of lack of supply voltage of the circuit arrangement. Between the first output and the second storage means, a field effect transistor connected in the form of a diode with a short-circuited gate-source connection is arranged. The first storage means has a data input. The signal present at the data input signal is transferred to the second storage means in response to the control ¬ signal which is supplied from an input circuit of the circuit arrangement ¬, and the control state of the two ¬ th memory means. The receiving device is designed to receive electromagnetic energy for supplying at least the circuit arrangement.

EP 1 732 026 B1 shows a circuit arrangement for RFID transponders. For storing electrical energy, a capacitor is used, which is connected in series with a switching means and in parallel with the output of the storage means for storing a control state (Q) serving first storage means. The switching means controls the charging of a second memory ¬ means with electrical energy.

In EP 1 481 366 B1, a passive RFID transponder is described, which maintains its state after a temporary failure of the supply voltage. The transponder comprises a state holding cell which is connected to a digital status machine and is adapted to maintain the state ¬ information during a loss of energy due to a lack of reception of the requesting RF signal by the RF receiving part. The state hold cell has an OR gate having a first input terminal operatively connected to receive a voltage corresponding to the state information, and a second input terminal

An input terminal coupled to a capacitor via a voltage comparator circuit that provides state information to the digital state machine. Of the

Capacitor (corresponding to the state Informa tion corresponds ¬) charged by the voltage.

US 7,414,517 B2 shows an RFID transponder with a volatile memory for storing data, a first

Power source for feeding a transponder connected to the circuit, which comprises the volatile memory. If the power fails, it ensures that the data in the volatile memory is retained for a predefined amount of time. The first power source will go through

RF signal fed. The transponder may include a second electrical ¬ source which supplies the memory upon failure of the first power source. WO 2007/015169 A2 describes an RFID unit comprising a memory chip, an antenna mounted on a carrier and a photocell mounted on the carrier, which is connected to the memory chip and this with energy

provided. The data of the memory chip can be displayed on an internal display or an external display of a mobile or fixed unit. To do this, the photocell must be exposed to a light source to activate the memory chip. The data transmission to the fixed unit takes place via an RF transmission via Bluetooth. The data can be stored before or after the application of the RFID device in the memory chip. As a major advantage of this RFID unit, reference is made in WO 2007/015169 A2 to the fact that no separate RFID read / write unit is required for reading out the information contained on the memory chip.

DE 10 2006 009 451 A1 shows a game character comprising a transponder, an action display and a combined logic / memory unit, which is connected between the transponder and the action display. The game character allows the transponder to transfer data into the combined logic / memory unit in order to control the action display, for example, based on the data stored there. The transponder can be both active and passive. When using an active RFID unit, an additional power source is available. By connecting the logic / memory unit with an energy storage is

achieved that the action display even with short-term

Removal of the character from the game board remains activated.

In numerous sports applications, a passive RFID transponder is assigned to each participating athlete. If these athletes pass RFID read / write units assigned to control stations, then the pass time and the pass time are passed

Control location identifying location code recorded. In certain applications, the athlete is required to monitor and control the identification process that has taken place. For this purpose, it is known to equip the RFID read / write unit with suitable signaling devices. A disadvantage of this

Solution is that the passing athlete after

Leave the checkpoint has no lasting or SUST ¬ loin control over the made successful identification process. Another disadvantage is that the Signals of the RFID read / write unit can not be clearly assigned to the own RFID transponder if at the time of passing the checkpoint several athletes communicate at the same time or very quickly via their RFID transponder with the RFID read / write unit. Particularly proble ¬ matically if a plurality of RFID read / write units are arranged in a narrow range and assigned to the individual users RFID transponders communicate virtually simultaneously using this RFID read / write units. This results in a large number of signals in a narrow

Area. In such a situation it is for the individual user, especially with acoustic signals extremely Schwiering ¬ rig, these signals of the RFID read / write units of their own action (conduct of a successful communication with the RFID read / write unit) assigned and thus to control the success of the action.

An object of the present invention is to provide a passive RFID transponder, with which a user information about a successful passing of a control point, which communicates with the RFID transponder, over a certain period even after leaving the

Receives control.

To achieve the object of the invention is a passive RFID transponder according to the appended claim. 1

The passive RFID transponder according to the invention is characterized in particular by the presence of an activatable via the control and control unit signaling device. This signaling device is for a predetermined period signaling the termination of a

(successful) RFID work cycle (ie successful communication between the RFID transponder and the RFID transponder) Control office). The user who carries the RFID transponder with him, for example when completing a running track, thus receives after a predetermined period of time

Passing a checkpoint constantly signaling that the RFID duty cycle was successful in passing the checkpoint, i. all necessary data could be exchanged. The user needs to control the

successfully executed communication between transponder and control point, ie not in the transmission range of

Control body remain, but may leave this already traveled.

An energy store provided for this purpose, for example a battery or a rechargeable battery, initially primarily supplies the signaling device, but preferably also the

 Control and control unit of the RFID transponder over the predetermined period of time with the necessary electrical energy.

According to the invention, a passive RFID transponder

provided with which a user information about a successful passing of a control point, which communicates with the RFID transponder, over a certain

Period even after leaving the inspection post.

According to the invention, a passive RFID transponder with an energy store for further energy supply of

 Signaling device used after completion of an RFID duty cycle. The energy storage is thus not primarily for supplying the control and control unit during the RFID cycle. At continuing

Embodiments, the energy storage in addition to

Supply the control and control unit serve when the supply voltage obtained from the RF field reaches a minimum required operating value, but then, for. because of

Disturbances drop below the required operating value, so that the full implementation of communication

would be at risk.

An advantage of the solution according to the invention is the fact that the user by means of signaling device even after leaving the impact or transmission range of an existing at a checkpoint RFID read / write unit information about a successful passing of the control point is available. This is made possible that the serving for activating the signaling device command and control unit continues to be supplied after completion of the communication with an RFID read / write unit by means of integrated Ener ¬ giespeichers over a predetermined period of time. The finite energy supply of the energy storage limits the operating time of the control and control unit and, associated with it, the operating time of the signaling device. In any case, the primary function of the passive RFID transponder remains independent of the state of the energy store. The capacity provided by the energy store is spared, since the primary function of the RFID transponder is furthermore preferably fed from the energy which is obtained from the RF field of the RFID read / write unit.

In accordance with a particularly preferred embodiment, the RFID transponder has a self-locking transistor switch for completely disconnecting the energy accumulator from the control and control unit. By thus reali ¬ catalyzed minimize power consumption in sleep mode ensures that the limited energy storage in materiality borrowed only for the operation of the signaling device

Use and thus a maximum operating time can be achieved. The primary function of the passive RFID transponder remains - as mentioned - even with completely decoupled energy storage obtained. In an expedient embodiment, a first unidirectional control path opens the transistor switch and connects the energy store to a measuring and supply connection of the control and control unit when a supply voltage obtained from the RF (Radio Frequency) field of an RFID read / write unit a minimal necessary

Operating value (ie one at least for the start of the

Processing required minimum value of the operating voltage) in order to set the passive RFID transponder in operation. This design becomes a continuous one

Supply the control and control unit via a

predetermined period, which is dependent on the capacity of the energy giespeichers enabled. For since the Kapa ¬ capacity of the energy storage tested and was assessed as sufficient ¬ tet, the energy storage for a predetermined period of time can also take over the supply of the monitoring and control unit. It is advantageous to carry out an examination of the function ¬ ability of the energy storage means of monitoring and control unit while the RFID work cycle. In this way, discharged or defective energy storage can be identified. In this context, it is expedient if the control and control unit sends an alarm signal to an RFID read / write unit after checking the operability of the energy store and in the event of a negative test result, and in any case blocks the commissioning of the signaling device, possibly also the RFID transponder disabled. As a result, information about defective transponders is promptly recorded at a central location, so that corresponding

Maintenance measures can be initiated. In addition, it ensures that only transponders are operated with functional energy storage, if this is done by the user is desired. But depending on the application, it may also be before ¬ Trains t to make the RFID transponders in operation, even if the signaled ¬ tion of the current state is no longer possible due to depleted energy storage. The RFID transponder is then operated in the usual passive mode.

In a preferred embodiment, the control and control unit activates a second control ¬ path for a predetermined period after completion of the RFID duty cycle and operability of the energy storage. The second control path is used to open the transistor switch. After vorbestimm ¬ th period of the second control path is deactivated and the transistor switches off. This ensures that the energy store is disconnected after the predefined period of time from the control and control unit, and thus energy is taken out for the operation of the signaling device only over a limited period of time. The control and control unit is preferably a microcontroller. Microcontrollers are inexpensive, have a compact design and can be adapted by its programmability prob ¬ lemlos to various application conditions and applications.

According to an expedient embodiment, the signaling device can output an optical, acoustic and / or tactile signal. These signal types are equally suitable for signaling a successful communication process of the RFID transponder. Which output signal is ultimately preferred depends on the specific field of application.

Furthermore, the use of a rechargeable energy storage is advantageous. The charging of the energy storage takes place eg during the RFID cycle by the RF field of the RFID read / write unit. In this way, the energy required for the subsequent signaling can be provided with little effort. Likewise, a recharge can be made via a solar cell or a separate charger.

The invention also relates to a method for operating a passive RFID transponder according to appended claim 10. The RFID transponder used in the method according to the invention has a control and control device and a

Energy storage on. The inventive method comprises the following steps: First, a requesting RF signal is received. The requesting RF signal can be transmitted, for example, from an RFID read / write unit arranged at a checkpoint. From this RF signal, the supply voltage for the passive RFID transponder is generated in a conventional manner. The supply voltage obtained from the RF signal is subsequently checked to see if it reaches a minimum required operating value. As soon as such an operating value is reached, the supply of the control and control unit via the integrated energy ¬ memory either completely taken over or at least buffered by this. This ensures that during the entire RFID cycle (communication process

between RFID transponder and RFID read / write unit)

Control and control unit is powered and a signaling device can be activated. Supply gaps, for example as a result of an attenuated RF signal, can thus be easily cushioned and the communication process can be completed successfully.

During the communication process can be carried out by the control and control unit, a function verification of Energiespei ¬ chers. If the functional test leads to a negative result, it is advantageous if the control and Control unit reports this fact the RFID read / write unit and as a result a warning signal is output to the RFID read / write unit. At the same time completeness, ¬-ended or partial deactivation of no longer fully functional RFID transponder can be done. After completion of an RFID work cycle, the supply of the control and control unit is carried out over a subsequent, predetermined period of time by the energy storage in order to take the signaling device into operation can. This period is limited by the energy contained in the energy store at this time or a predetermined period of time. During this predetermined period of time, a signal indicating correct termination of the RFID operating cycle is output at the RFID transponder via the signaling device. This may be, for example, an optical, acoustic or tactile signal. The issued signal gives a user, even after leaving a checkpoint, the opportunity to check whether a successful communication between the transponder and an RFID read / write unit has taken place. After the predetermined period, the control and control unit is disconnected from the energy storage to limit the removal of energy.

Further advantages, details and developments emerge from the following description of a preferred

Embodiment of the invention with reference to the drawing. The single FIGURE shows a circuit arrangement of a passive RFID transponder according to the invention. The passive RFID transponder according to the invention comprises a

Control and control unit 01, which is preferably designed as a microcontroller. The control and control unit 01 serves primarily for the realization of the conventional transponder function, ie it controls the communication with a RFID read / write unit 02, which will not be described here.

As is well known, in passive RFID transponders, the power supply via the RF field, which is provided by the RFID read / write unit 02, as long as the passive RFID transponder in the coupling area of RFID write / Reading unit 02 is located. As soon as the RFID transponder leaves this coupling area, this energy source is no longer available. The of the RFID

Read / write unit 02 provided energy may vary depending on the quality of the received signal from the RFID transponder. The control and control unit 01 is connected via a self-locking ¬ transistor switch 03 with an energy storage 04. By means of transistor switch 03 of the energy storage can be completely quiescent current separately from the control and STEU ¬ ereinheit 01 04th The operation of such a switch is known in principle to the person skilled in the art, so that only schematic circuit diagrams are shown in the FIGURE. For this purpose, a first unidirectional control path 06 is present, which opens the transistor switch 03, in particular by applying a voltage to the GATE connection of a MOSFET, and thereby connects the energy store 04 with a measuring and supply connection of the control and control unit 01, if a supply voltage obtained at the connection 05 from the RF field of the RFID read / write unit 02 reaches a minimum necessary operating value. Without this additional supply from the energy storage device the risk would be that falls below this operating value of the communi ¬ nikationsvorgang between RFID read / write unit 02 and RFID transponder can not be completed correctly.

At the same time, however, the energy storage is only then activated and claimed, if it is ensured by receiving a rea ¬ accordingly strong RF signal that the RFID transponder is located in the working range of the RFID read / write unit 02.

During the communication process with the RFID read / write unit 02, it is advantageous if the monitoring and control unit 01 first checks the level of the voltage and the Leis ¬ processing capability of the energy storage 04th With a negative test result in a preferred execution ¬ form an alarm signal can be output to the RFID read / write unit 02. In addition, the RFID transponder can be deactivated in this case. By outputting a Alarmsig ¬ Nals at the RFID read / write unit 02 can be promptly advised of dysfunction so that appropriate

Maintenance measures can be taken at short notice. Thus, the reliability of the overall system can be significantly increased. If the review of the energy storage 04 has led to a posi ¬ tive result, a second control path 07 is activated by means of control and control ¬ unit 01 following the communication process. This second control path 07 in turn opens the transistor switch 03 and thereby connects the control and control unit 01 with the energy storage device 04. In this way, it is ensured that the

Control and control unit 01 is supplied with energy after leaving the coupling ¬ area with the RFID read / write unit 02. After completion of the communication process, the control and control unit 01 activates a signaling device 08, for example an LED, over a predetermined period of time. The duration of this period is predetermined to a reasonable extent in the respective application and is limited upwards by the energy contained in the energy storage 04.

The signaling device 08 is used to signal the termination of the communication process with the RFID read / write unit 02. Thus, the user has a direct display ¬ possibility for a successfully completed communication at the RFID transponder available. The signaling device 08 can output, for example, optical, acoustic or tactile signals. The signaling process is terminated by the control and control unit 01 after the vorbestimm ¬ th period the second control path 07 is deactivated and thus the transistor switch 03 blocks.

According to a preferred embodiment, the energy store 04 is rechargeable. The charging of the energy store 04 preferably takes place during the communication process with the RFID read / write unit 02 by its RF field. Alterna tively ¬ a long-life battery or an accumulator with a larger capacity can be used as an energy storage.

LIST OF REFERENCE NUMBERS

01 - control and control unit

02 - RFID read / write unit

03 - transistor switch

 04 - Energy storage

 05 - supply voltage

 06 - first control path

 07 - second control path

 08 signaling device

Claims

claims
1. Passive RFID transponder with a control and control unit (Ol) and an energy store (04), characterized in that it can be activated via the control and control unit (01) signaling device (08) for signaling the termination of an RFID duty cycle has over a predetermined period of time, wherein the energy store (04) for supplying power to the signaling device (08) over the predetermined period of time is used.
2. Passive RFID transponder according to claim 1, characterized in that the energy store (04) over the predetermined period of time, the control and control unit (01) at least partially supplied with energy.
3. Passive RFID transponder according to claim 2, characterized in that it has a self-locking transistor switch
(03) for complete quiet current-free separation of the energy store (04) of the control and control unit (01).
4. Passive RFID transponder according to claim 3, characterized in that one of the RF (radio frequency) field of a
RFID write / read unit (02) obtained supply voltage via a first control path (06) to the transistor switch (03) is fed to open this and the Energiespei ¬ cher (04) with a measuring and supply connection of
Control and control unit (01) to connect when the supply voltage obtained from the RF field reaches a minimum required operating value. Passive RFID transponder according to one of claims 1 to 4, characterized in that the control and control unit (Ol) during the RFID working cycle, the functioning of the energy storage device (04) checks.
Passive RFID transponder according to claim 5, characterized in that the control and control unit (01) after completion of the RFID duty cycle and the operability of the energy store (04) for the predetermined period of time via a second control path (07) the transistor switch (03) opens, wherein after the predetermined period of the second control path (07) deactivated and the Transistorschal ¬ ter (03) is disabled.
Passive RFID transponder according to one of claims 1 to 6, characterized in that the control and control unit (01) is a microcontroller and that the signaling device (08) emits an optical, acoustic and / or tactile signals.
Passive RFID transponder according to one of claims 4 to 7, characterized in that the control and control unit (01) after checking the operability of Energiespei ¬ chers (04) and a negative test result
Alarm signal to an RFID read / write unit (02) sends.
Passive RFID transponder according to one of claims 1 to 8, characterized in that the energy store (04) is rechargeable, in particular during the RFID working cycle with the RF field of the RFID read / write unit (02) recovered energy. Method for operating a passive RFID transponder comprising a control and control unit (Ol) and an energy store (04), comprising the following steps:
 - receiving a requesting RF signal and providing a supply voltage for the passive RFID transponder from the RF signal;
- Check that the product obtained from the RF signal supply ¬ voltage reaches an operating value;
 - Supplying the control and control unit (01) via the energy store (04) on reaching the operating value of the supply voltage;
 - Further supply of the control and control unit (01) via the energy storage (04) over a predetermined period after completion of an RFID work cycle;
 - Issue of the termination of the RFID work cycle
signaling signal via a Signal in- direction (08) of the RFID transponder, which is powered by the Energiespei ¬ cher (04), over a predetermined period;
 - Disconnecting the control and control unit (01) and the
 Signaling device (08) from the energy store (04) after the predetermined period.
PCT/EP2013/057145 2012-04-04 2013-04-04 Rfid transponder with signalling device WO2013150119A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102012102941.5 2012-04-04
DE201210102941 DE102012102941A1 (en) 2012-04-04 2012-04-04 Passive RFID transponder with signaling device and method for operating such an RFID transponder

Publications (1)

Publication Number Publication Date
WO2013150119A1 true WO2013150119A1 (en) 2013-10-10

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WO (1) WO2013150119A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014109172A1 (en) 2014-07-01 2016-01-07 Sportident Gmbh Compass arrangement with RFID transponder
DE102015111389B4 (en) 2015-07-14 2019-08-14 Infineon Technologies Ag Circuitry

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020014963A1 (en) * 1999-07-29 2002-02-07 Trosper Scott T. Radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods
US6454172B1 (en) * 1997-02-21 2002-09-24 Rohm Co., Ltd. IC card having a display for displaying a response state
US20040056083A1 (en) * 2000-07-17 2004-03-25 Hans Graf Display device for a portable data carrier
DE102004006504A1 (en) * 2004-02-10 2005-09-08 Infineon Technologies Ag Contactless data carrier with signal generator
US20060017573A1 (en) * 2004-07-26 2006-01-26 Yamaha Coroporation RFID tag-containing apparatus and RFID tag-containing seal
US20060022824A1 (en) * 2004-08-02 2006-02-02 United Parcel Service Of America, Inc. Systems and methods for using radio frequency identification tags to communicating sorting information
US20060244592A1 (en) * 2005-04-29 2006-11-02 Ilkka Kansala Indicating radio frequency identification (RF-ID) tag
US20070273507A1 (en) * 2005-04-22 2007-11-29 Jonathan Burchell Apparatus and method for monitoring and communicating data associated with a product
US20080186178A1 (en) * 2007-02-07 2008-08-07 Micron Technology, Inc. RFIDS, interrogators, indication systems, methods of determining a bi-directional communication range of an interrogator, methods of activating an observable indicator, and methods of indicating bi-directional functionality of a radio connection
US20080220721A1 (en) * 2007-03-09 2008-09-11 Downie John D Passive RFID elements having visual indicators

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7259654B2 (en) 2000-02-28 2007-08-21 Magellan Technology Pty Limited Radio frequency identification transponder
US6812841B2 (en) 2002-01-23 2004-11-02 Intermec Ip Corp. Passive RFID tag that retains state after temporary loss of power
DE102004007106B4 (en) 2004-02-13 2011-04-07 Atmel Automotive Gmbh Circuit arrangement, in particular for use in RF transponders or remote sensors
EP1732026B8 (en) 2005-06-04 2009-09-16 Atmel Automotive GmbH Circuit for use in RF transponders or remote sensors, and method for controlling a plurality of such transponders or sensors.
DE102006009451A1 (en) * 2006-03-01 2007-09-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Interaction device for game board, has controller formed and coupled with transmitting/receiving devices to control each transmitting/receiving device to cooperate with identification devices for identifying and locating pieces on board
WO2007015169A2 (en) 2006-07-10 2007-02-08 Moosa Eisa Al Amri A self-display rfid tag device with a display unit or bluetooth technology to send / receive data
KR100833511B1 (en) 2006-12-08 2008-05-29 한국전자통신연구원 Passive tag with volatile memory

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6454172B1 (en) * 1997-02-21 2002-09-24 Rohm Co., Ltd. IC card having a display for displaying a response state
US20020014963A1 (en) * 1999-07-29 2002-02-07 Trosper Scott T. Radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods
US20040056083A1 (en) * 2000-07-17 2004-03-25 Hans Graf Display device for a portable data carrier
DE102004006504A1 (en) * 2004-02-10 2005-09-08 Infineon Technologies Ag Contactless data carrier with signal generator
US20060017573A1 (en) * 2004-07-26 2006-01-26 Yamaha Coroporation RFID tag-containing apparatus and RFID tag-containing seal
US20060022824A1 (en) * 2004-08-02 2006-02-02 United Parcel Service Of America, Inc. Systems and methods for using radio frequency identification tags to communicating sorting information
US20070273507A1 (en) * 2005-04-22 2007-11-29 Jonathan Burchell Apparatus and method for monitoring and communicating data associated with a product
US20060244592A1 (en) * 2005-04-29 2006-11-02 Ilkka Kansala Indicating radio frequency identification (RF-ID) tag
US20080186178A1 (en) * 2007-02-07 2008-08-07 Micron Technology, Inc. RFIDS, interrogators, indication systems, methods of determining a bi-directional communication range of an interrogator, methods of activating an observable indicator, and methods of indicating bi-directional functionality of a radio connection
US20080220721A1 (en) * 2007-03-09 2008-09-11 Downie John D Passive RFID elements having visual indicators

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