Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
  • H04M1/026—Details of the structure or mounting of specific components
  • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
• • 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
  • G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• • 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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
  • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
  • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

Definitions

• Radio frequency communication device comprising a power supply of radio frequency origin assisted
• the invention relates to a radiofrequency communication device comprising electromagnetic energy supply means for supplying a component.
• the invention relates to a mobile phone (mobile) comprising a battery supplying power to a Near Field Communication (NFC) proximity radio frequency circuit and implementing a mode in which all or part of the power supply of the mobile is cut, including the power of a subscriber identification module (SIM, USIM) fixed or removable in favor of a supply of electromagnetic origin.
• a mobile phone mobile
• NFC Near Field Communication
• SIM subscriber identification module
• USIM subscriber identification module
• the NFC radiofrequency circuit is preferably integrated in a hose configured to be interposed between the SIM card and its connector in the mobile.
• the NFC circuit can be factory integrated in removable or fixed form in telecommunication devices, such as mobile phones, PDA PDAs, laptops, etc.
• the ISO / IEC 14443 and ETSI TS 102 622 V7 standards provide for a mode of operation (contactless card emulation) of the radio frequency communication of proximity in which the mobile phone (or at least the radiofrequency part of the telephone, comprising an NFC controller with a subscriber identification module) behaves like a contactless card or a passive electronic tag vis-à-vis an emitter reader electromagnetic field.
• This mode emulates a contactless or equivalent card for the mobile phone.
• Today, in the mode of "contactless card" operation of a phone with NFC function may not be completely satisfactory or compliant with the standard or may have malfunctions.
• a very hostile radio frequency environment metallic obstacles and disturbances by other radio frequencies.
• the patent application EP 2,088,540 describes an electronic portable device for supplying an electronic circuit by battery in the event of detection of an electromagnetic field, the circuit not being powered in the standby position.
• This device comprises selection means for selecting a supply of this circuit coming from the battery, during an electromagnetic field presence. This device avoids battery standby power.
• the patent application JP 8 055198 discloses a non-contact and battery IC card that saves the battery when receiving an electromagnetic field.
• the card includes a switch that disconnects the integrated circuit of the battery when receiving an electromagnetic field. This switch connects the integrated circuit to the battery when the integrated circuit needs power.
• contactless cards with a thin battery in the thickness of the card body to improve the range of contactless communication or allow arithmetic or cryptographic functions integrated or display data.
• Such cards are marketed in particular by the company "Solicore”.
• These cards include passive radio frequency circuits directly receiving the electromagnetic flux to feed directly. It is not NFC circuit powering an integrated circuit or other component separate and external to the radio frequency circuit. These cards do not implement a contactless object reader function or contactless card.
• the problem to be solved is to guarantee the same quality of operation of the contactless application, whether the contactless system is powered by the telephone or by the RF field.
• the invention consists in integrating or associating a power source such as a thin battery, at least one capacitance to the NFC or CLF component to "boost" or meet the power consumption needs, particularly punctual or during radio frequency transactions. These needs may arise during certain phases of a radio frequency contactless transaction, including the initial phase or start-up phase.
• the invention makes it possible to guarantee normal operation of the component via a normal consumption of current of the component throughout the duration of the radiofrequency transaction.
• the extra battery is charged, preferably by the phone's main battery when it is operational.
• the invention has no significant impact on the operation of the host device such as a mobile, the alternative source of energy being recharged with extremely low currents that do not disturb the operation of the host device. Unlike a prior art thin-film card referred to above, the invention does not bring about a permanent mode of energy but a guarantee of using this energy only in the emergency case of the unloaded or extinguished telephone, this allows to consider the use of energy storage objects with very low capacities.
• the subject of the invention is therefore a radiofrequency communication device comprising connection means connecting or intended to electrically connect an integrated circuit component (SIM), means for supplying this component (SIM) with electromagnetic current (RF);
• the invention makes it possible to stimulate or compensate for or remedy the main power supply insufficiency or radiofrequency origin provided by the device. According to other characteristics of the device:
• EC communication mode
• EC communication mode
• SIM component power supply configuration
• RF electromagnetic source
• B1 first source
• B1 a main battery
• the alternative source comprises a secondary battery and / or at least one capacitor
• the alternative source is rechargeable by a main battery of the device hosting the NFC system;
• the component comprises a subscriber identification module to a telecommunications network or an integrated circuit chip or a UICC type card.
• the device comprises an NFC controller and a connection connecting or intended to connect the NFC controller to the component (SIM) to provide a supply of electromagnetic origin, a direct connection of the alternative source to the component (SIM) or via a managerial means alternating power supply and / or conditioning means of said alternative source.
• the device comprises an alternative power management means for managing an alternating direct supply of the component (SIM), a load circuit of the AC source connected to the main battery, an electromagnetic field detection circuit intervening with said manager to inhibit a discharge of the alternative source to the component (SIM) in the absence of electromagnetic field detection and to authorize the discharge in the opposite case;
• an alternative power management means for managing an alternating direct supply of the component (SIM), a load circuit of the AC source connected to the main battery, an electromagnetic field detection circuit intervening with said manager to inhibit a discharge of the alternative source to the component (SIM) in the absence of electromagnetic field detection and to authorize the discharge in the opposite case;
• the battery or at least the capacitance is attached to a portion of a flexible NFC device including the antenna;
• the device comprises an NFC controller, connection pads for connecting on the one hand a main battery of a host device and on the other hand a subscriber identification module (SIM);
• SIM subscriber identification module
• the battery and / or at least the capacity and / or said alternative power management means are fixed or integrated in an electronic component which can constitute or comprise an NFC controller and / or a subscriber identification module (SIM); ;
• the host device is a mobile phone.
• the invention also relates to a radiofrequency communication method implementing at least one integrated circuit component (SIM) and means for selecting a power supply of electromagnetic origin to supply this component;
• SIM integrated circuit component
• the method is characterized in that it comprises a step of supplying a power supply of the component (SIM) by an alternative source when receiving an electromagnetic field as soon as the supply current of electromagnetic origin received by the component is insufficient.
• SIM component
• the invention thus allows a mode of operation of the mobile compliant with the standards but powered at least for a short period of transaction start as if it was permanently outside the map emulation mode.
• the invention makes it possible to have at any time the guarantee of an optimized operation of the NFC system in a mobile phone whether it is subsequently added or planned by the factory.
• FIG. 1 illustrates a flexible NFC system F of the prior art
• FIG. 2 illustrates the system F being inserted into a telecommunication apparatus 5
• FIG. 3 illustrates an external view of a flexible NFC system according to the invention
• FIG. 4 illustrates a first embodiment of the supply circuit according to the invention
• FIG. 5 illustrates a second embodiment of the supply circuit according to the invention
• Figure 6 illustrates an apparatus provided in its manufacture of the supply circuit according to the invention
• FIG. 7 illustrates process steps according to several modes of implementation
• Figure 8 illustrates a CMS-type component arranged with all or part of the invention; In particular, it describes an NFC or SIM controller combined with a circuit comprising a mini battery or capacitors.
• Figure 1 illustrates a flexible NFC system of the prior art; it comprises a flexible support SI carrying a radio frequency antenna Al, an NFC controller (2), power management means (4) of the NFC controller connected to or configured to be connected to the battery and / or to the radiofrequency antenna A1, a connector (3, 6) with pads 3 and contact pads 6 respectively opening or arranged on one of the two main faces of a portion intended to interface with a connector 10 (blade connector or springs) of telecommunication apparatus 5 for SIM module and contact pads of the SIM module.
• the apparatus may also be a communication device such as a personal assistant or any device comprising a battery that is to be provided with contactless communication means.
• the NFC controller may internally include the power management means 4.
• This system (SI) is housed in a host device 5 such as a telecommunications device, the antenna can be, for example, pressed against a battery B1 (FIG 1) of this host device.
• FIG. 2 illustrates a flexible NFC system F1 comprising the flexible system of the prior art F equipped with the device of the invention. It comprises in particular a flexible thin battery b3 and an additional power supply circuit 40 according to the invention to manage the use of this additional battery as detailed below.
• FIG 4 is illustrated a block diagram of an embodiment of a supply device 20 for radio frequency communication device Fl according to the invention; the communication device comprises at least one integrated circuit component (SIM or other) or connection means to this component (SIM), as previously, means 2, 4 for selecting a current supply of this component from an electromagnetic field of an external reader (T, A2).
• SIM integrated circuit component
• T, A2 an external reader
• the device is the flexible NFC system (F) which comprises an integrated circuit chip 2 as a radiofrequency component or NFC type controller (CLF);
• the NFC controller is connected to a transmitting antenna Al and / or electromagnetic field reception;
• the controller 2 comprises connection means 13 to the battery;
• These connection means comprise contact pads of the ISO 7816 type (3, 6).
• the component here is a subscriber identification chip but could be all or part of a circuit of an associated device.
• Circuit 2 is designed to provide a standardized voltage to the SIM chip between 1.8 and 3 volts.
• connection means 3 is in fact in the example an interconnection means (I) which comprises a first connector 13 for connecting the NFC controller (2); On the other hand, the interconnection means also comprises a second connector (3, 6) for connecting a subscriber identification module (SIM) and the connector 10 of the portable telecommunication device 5.
• I interconnection means
• SIM subscriber identification module
• the radiofrequency communication device F2 comprises:
• SIM integrated circuit component
• connection means 3, 6, to a first energy source B1 comprising a battery and / or a second source T implementing an RF electromagnetic field 14443; an EC operating mode in contactless card emulation or equivalent radio frequency operation,
• Power management means 2, 4 of the component according to this mode configured to cut the power from said first source of energy B1 and to provide instead a supply from said second external source T.
• This source emits an electromagnetic field (RF 14443) through a transmitting antenna A2.
• the device F2 comprises:
• a third power source b3 such as a secondary or auxiliary battery or at least one capacitor C3 (not shown) for the direct supply of the SIM component in said mode (EC),
• direct means 23 for example, a conducting wire for the supply of power to the component by this third power source b3 in the event of a supply of the component that is insufficient or not provided by the said second source (T) during a RF radio communication.
• the direct power supply means 23 may comprise in a simple example, a simple direct connection for the power supply to the SIM component connecting the source b3 and / or c3 to the component (SIM).
• the auxiliary battery is of the flexible and flat type of approximately 300 ⁇ thick. It can be fixed on the flexible NFC device, for example at the inner surface of the antenna Al (FIG 3). Advantageously, the flexible battery does not completely cover the coupling surface of the antenna Al to maintain a good radio frequency coupling.
• the alternative power supply means b3, C3 are rechargeable. In the example, they are here rechargeable by the main battery Bl. However, other charging methods are possible directly or for example via photovoltaic sensors, etc.
• the device therefore comprises for this purpose a charging circuit 24 or load manager and / or discharge battery appendix b3 or C3.
• This circuit 24 is connected directly to the main battery B1 via a connection 25 to draw the charging energy.
• the device F2 may comprise a diode 26 or the like to deliver a voltage attenuated with respect to that delivered by the battery b3;
• the attenuation here is 0.4 volts;
• the diode is disposed on the link 23 before connecting the SIM module.
• the discharge management circuit delivers a voltage (1.9V) which is just above the minimum voltage (1.8V) provided by the CLF controller (2).
• the auxiliary battery b3 delivers a regulated voltage of 2.3 V through the discharge manager 24.
• an additional power supply circuit 30 comprises the flexible auxiliary battery and the charge / discharge management electronics 34 and the diode 26. This additional circuit is intimately fixed to the flexible NFC device.
• the device comprises a controller 2 (NFC), a direct connection between alternative power supply means and the component (SIM), a field detection circuit (27), a circuit for charge in normal mode, a discharge blocking circuit in the absence of electromagnetic field (34).
• NFC controller 2
• SIM direct connection between alternative power supply means and the component
• 27 field detection circuit
• 34 discharge blocking circuit in the absence of electromagnetic field
• the additional circuit 20 further comprises an electromagnetic field detector 27 connected to the power manager of the SIM card.
• the function of the manager 34 is to detect the presence of a radio frequency field and to allow the discharge of the battery b3 only during an RF communication.
• the manager 34 may comprise at least the functions of the circuit 24 (FIG. 4), a program loaded into a program memory of a controller of the manager.
• the function above can be done in hardwired form.
• the manager can be a component of type MAX11710.
• the circuit 34 may comprise in particular a logic gate or an electromagnetic switch or a relay that isolates the battery b3 from the SIM. This makes it possible not to discharge the battery or capacity (s) C3 unnecessarily by a possible leakage current. When a sufficient field of communication is detected, the discharge of the battery and / or capacity (s) is authorized to supply the SIM.
• This manager may include means configured to allow charging of the battery b3 and / or capacity (s) C3 especially when the device is energized and / or prevent its discharge in the absence of RF radio communication.
• the alternative power supply means b3, c3 can intervene in support or substitution of the power supply of the component (SIM) in the event of detection of insufficient current / voltage at their terminal. It can also intervene in case of detection of an operating mode in which the power supply is provided by the RF electromagnetic field such as the EC card emulation mode.
• FIG. 6 illustrates a communication device 50 comprising a circuit 2 (NFC or CLF) in communication and power supply relationship with a SIM card or UICC (universal integrated circuit card) compliant with the ISO / IEC 14443 standard. .
• NFC or CLF circuit 2
• SIM card or UICC universal integrated circuit card
• the UICC component or the corresponding electronic chip can be removable or welded into the device. Communication between the SIM and the CLF is done by SWP link.
• the CLF controller can be factory-installed in this unit.
• the apparatus may comprise, in factory assembly or in a removable manner, at the junction point (I) at the SIM, the additional circuit 40 of the invention, in accordance with the circuits 20 or 30 of FIG. 4 or 5.
• This circuit is connected to the SIM by the point (I) corresponding to the point "Vcc" of the connector of the mobile.
• FIG. 7 illustrates the preferred steps of the radiofrequency communication method implemented by the various previous embodiments.
• This method requires at least one electronic component and means for selecting a power supply of this component from an electromagnetic field of an external reader.
• the method of the invention comprises a step of alternating and direct supply of the component independently of a main battery. This power supply is implemented only to compensate for any lack of current or supply voltage of the component coming from the electromagnetic field.
• Step 50 illustrates this supply by commissioning the complementary battery b3 or at least one capacitor C3 in the circuits 20, 30 or 40.
• This commissioning can be triggered in several individual or cumulative ways with each other according to different variants described below.
• the commissioning can be triggered by a step 60 of direct action, performed for example manually, on a switch (not shown) installed on a connection 23 (FIG 4) connecting b3 or c3 directly to the component including the point (I).
• This switch can be housed in or also functionally constituted by the component 34.
• step 100 the method comprises a step of detecting a current requirement that occurs when a voltage across the SIM is less than 1.8V or 1.9V; In the positive case, the commissioning of the battery B3 or capacitor C3 intervenes. In the negative case, the program loops back to 200, 300 or goes into a standby or stationary state (0).
• the detection 100 can be simply physical because of a potential difference state at the point (I) between the connections 13 and 23.
• a radio frequency field is detected, in particular by a detector 27 comprising a coil and being connected to the manager 34;
• This detector is configured to transmit, for example in logical form, a high or low state to the manager 34 according to a presence or not of a radiofrequency field having expected characteristics; this detection is implemented by the circuit 27 of FIG.
• the program can loop back directly on the operation 50 (path f) or on the step 300 (path a) or alternatively according to another mode of operation, on the test 100 previously described
• the program can loop on a test (300) or standby (0).
• the method comprises a step of detecting an operating mode in non-contact card (EC) emulation.
• This mode can be triggered in various ways, including by default, by voluntary action, by communication protocol in the case in particular of exchanges between mobile phones in communication called "Peer to Peer”), in the case where the battery is absent, discharged or deactivated when the power is turned off 5.
• the program can be connected directly to the operation 50 of putting into operation an alternative power supply b3, C3 (path b); It can alternatively connect to at least one test additional 100 (voltage detection ⁇ 1.8V) (path d) and / or on test 200 (RF field detection);
• the program or method loops back to the beginning or to a waiting state (0) or to one of the other tests (100, 200, 300).
• the radiofrequency communication method with a device has a non-contact card (EC) emulation mode or equivalent configuration.
• EC non-contact card
• the method implements a communication step in an emulation mode (EC) contactless card or equivalent configuration, said mode having a component supply configuration (SIM) by a source of electromagnetic origin in substitution of a first source (B1) comprising a battery;
• EC emulation mode
• SIM component supply configuration
• the process is distinguished in that it comprises:
• the component is provided with an alternating power source, such as a battery or at least one capacitor,
• the device is preferably a mobile phone supplying a battery NFC circuit B1 and the component is preferably a subscriber identification module, such as a SIM card and / or an NFC circuit.
• the NFC component can be housed in the SIM card or another card such as an SD or micro SD card.
• the micro SD card can therefore also include a battery b3 and / or capacities c3 according to the invention with the management circuits 20, 30 or 40.
• FIG. 8 illustrates an embodiment of the invention in the form of at least one electronic component
• the circuit 40 is miniaturized and is arranged in a compact manner on an electronic component to be powered (SIM), for example according to the EC mode.
• SIM electronic component to be powered
• the component (SIM) is here in CMS form (surface-mounted component) of parallelepiped shape; It comprises the connections or electrical lugs C1 to C5 corresponding to the contact areas of a smart card.
• CMS surface-mounted component
• the circuit 40 is compacted to the dimensions of the surface of the CMS component also in CMS component form with at least 2 connection tabs 43, 44 respectively corresponding to the connection 23 and ground. These two tabs are here connected in particular by welding to the legs C5 and Cl of the SIM.
• the component (SIM) can be replaced by the component (NFC), the element 40 then comprises one of the circuits 20 or 30 comprising in particular the auxiliary battery b3 or capacitor C3, the power manager 24 or 34.
• the legs C1 - C5 are adapted accordingly to the necessary connections of the component 2 (NFC).
• the tab 43 corresponds to the connection 23 of the manager 24, 34 (FIG 4 or 5).
• the invention proposes a particular NFC wire component with an integrated energy source integrated or juxtaposed to deliver energy immediately to a component to power, such as a SIM card without waiting for a transformation of electromagnetic energy which may include failure or insufficiency.
• the invention makes it possible to deliver a more calibrated / stabilized voltage in the case of transformation and supply of energy by radiofrequency field.
• the invention provides one or more modes of assistance to the main battery of the NFC system; These modes can be concretized by an assistance program (AS) in the NFC controller and an I / O port connected to the power manager 24 of the component or components; These modes can be configured to provide present radio frequency field information and main battery power absent. A signal on this port is used by the alternative power management means 24, 34 for commissioning the battery or AC capacity to power the component or any other component or circuit.
• AS assistance program
• I / O port connected to the power manager 24 of the component or components
• a signal on this port is used by the alternative power management means 24, 34 for commissioning the battery or AC capacity to power the component or any other component or circuit.
• the invention provides that the NFC controller itself delivers the detected field presence information by its own antenna Al (in this case, the means 27 of FIG. 5 is useless, its function being performed by the NFC controller);
• the NFC controller may deliver battery information discharged or absent or out of service.
• provision is made for a configuration in which at least one I / O port is kept operational contrary to the current configuration of the controllers.
• the invention provides an adaptation in this sense of the current operating software of the NFC controller because in the prior art, the I / O ports of the NFC controller are inactive in the case of absence of main battery or non-power mode of the NFC controller.
• NFC controller by the main battery.
• the manager 24 or 34 can be integrated in the NFC controller so as to deliver alternative energy to the component (SIM).
• SIM alternative energy to the component
• the invention provides an NFC controller with a field detection device (such as 27), which makes it necessary to operate in 3V for the SIM in activated battery mode. (In this case, there is no current drawn from the alternative source when the radio frequency field is present and the phone is turned on).
• the NFC controller may be configured to deliver or exploit field presence information and / or information relating to a level of main battery energy absent or present so as to turn on or off the AC source to power the component.

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• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Signal Processing (AREA)
• Telephone Function (AREA)
• Mobile Radio Communication Systems (AREA)

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• 2011
  • 2011-05-06 EP EP11305541A patent/EP2521072A1/de not_active Withdrawn
• 2012
  • 2012-04-27 WO PCT/EP2012/057850 patent/WO2012152606A1/fr active Application Filing
  • 2012-04-27 KR KR1020137032095A patent/KR101626195B1/ko not_active IP Right Cessation
  • 2012-04-27 US US14/114,912 patent/US9537984B2/en not_active Expired - Fee Related
  • 2012-04-27 EP EP12720467.5A patent/EP2705467A1/de not_active Withdrawn

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