Patent application number | Description | Published |
20090247079 | TERMINAL OF RADIO-FREQUENCY TRANSMISSION/RECEPTION BY INDUCTIVE COUPLING - A method and a device of transmission/reception by inductive coupling including circuitry for generating an AQ.C. signal intended to drive an oscillating circuit and circuitry intended to modulate the impedance of the oscillating circuit when data is to be transmitted, the oscillating circuit including an inductive element forming an antenna in parallel with a first capacitive element; and at least one second capacitive element in series with a switch, all in parallel with the first capacitive element and the antenna, the modulating circuitry being connected between the terminals of the antenna and the circuitry for generating the AQ.C. signal being connected to the junction point of the second capacitive element and of the switch. | 10-01-2009 |
20090252068 | DETECTION OF DATA RECEIVED BY A MASTER DEVICE IN A SINGLE-WIRE COMMUNICATION PROTOCOL - A method of determining, by a first device capable of transmitting a two-state signal over a single-wire connection to a second device, the binary state of data transmitted by the second device over said connection, the state being determined according to the slope of a rising edge of the two-state signal. | 10-08-2009 |
20100019885 | DETECTION OF THE PRESENCE OF A CONTACTLESS COMMUNICATION ELEMENT WITHIN THE RANGE OF A TERMINAL - A method of detection of the presence of a contactless communication element by a terminal emitting an electromagnetic field, in which an oscillating circuit of the terminal is excited at a frequency which is made variable between two values surrounding a nominal tuning frequency of the oscillating circuit; a signal representative of the load of the oscillating circuit being interpreted to detect that a reference voltage has not been exceeded, which indicates the presence of an element in the field. A presence-detection circuit and a corresponding terminal. | 01-28-2010 |
20100210300 | COMMUNICATION DEVICE COMPRISING A BATTERY AND A NEAR-FIELD COMMUNICATION MODULE - A mobile telecommunication device including at least one telecommunication circuit; at least one subscriber identification module; at least one assembly including at least one supply battery; and a switch of selection between a power supply of the subscriber identification module by the assembly and by the telecommunication circuit according to the presence or not of a near-field communication module in the assembly. | 08-19-2010 |
20120108169 | METHOD AND DEVICE FOR MANAGING INFORMATION EXCHANGE BETWEEN FOR EXAMPLE A NFC CONTROLLER AND A SET OF AT LEAST TWO SECURE ELEMENTS - The device may include a contactless element and a set of least two auxiliary elements. Each auxiliary element may include a slave SWP interface connected to a same master SWP interface of the contactless element through a SWP link, and a management module configured for activating at once only one slave SWP interface on the SWP link. | 05-03-2012 |
20120190332 | PROTECTION OF A SECURITY ELEMENT COUPLED TO AN NFC CIRCUIT - A method and a device for protecting a security module connected to a near-field communication router in a telecommunication device, wherein a transmission between the router and the security module is only allowed in the presence of a radio frequency communication flow detected by the router. | 07-26-2012 |
20130225074 | NON-VOLATILE MEMORY FOR NFC ROUTER - A plurality of circuits in a same package including a first integrated circuit having at least one NFC-type communication interface and at least one communication interface of another type, and a second integrated circuit having a security module with a non-volatile memory, the non-volatile memory being used by the NFC interface to store configuration data. | 08-29-2013 |
20130225076 | RECHARGE OF AN NFC DEVICE - A mobile device including: a battery; an element for charging the battery; a near-field communication circuit; and a connection between the near-field communication circuit and the battery charge element. | 08-29-2013 |
20130337770 | MANAGEMENT OF COMMUNICATION PIPES IN A TELECOMMUNICATION DEVICE COUPLED TO AN NFC CIRCUIT - A method for detecting an attempt of diversion of a communication pipe between a port of a security module and a port of a near-field communication router present in a telecommunication device, wherein the router filters the messages addressed to said security module. | 12-19-2013 |
20140022060 | NFC APPARATUS CAPABLE TO PERFORM A CONTACTLESS TAG READING FUNCTION - An NFC device may include a first and second controller interfaces, a first communication channel coupled to the first controller interface, and a second communication channel connected to the second controller interface. A secure element may include a secure element interface connected to the first communication channel and encryption/decryption circuitry configured to encrypt data to be sent on the first communication channel for being framed into the encrypted frames and to decrypt encrypted data extracted from the encrypted frames and received from the first communication channel. The secure element may also include management circuitry configured to control the encryption/decryption circuitry for managing the encrypted communication with the NFC controller. A device host may include a host device interface coupled to the second controller interface and control means or circuitry configured to control the management circuitry through non-encrypted commands exchanged on the first and second communication channels. | 01-23-2014 |
20140036723 | METHOD AND DEVICE FOR MANAGING INFORMATION EXCHANGE BETWEEN A MAIN ELEMENT, FOR EXAMPLE A NFC CONTROLLER, AND A SET OF AT LEAST TWO AUXILIARY ELEMENTS - Device, comprising a main element (ME) and a set of at least two auxiliary elements (SEi), said main element including a master SWP interface (MINT), each auxiliary element including a slave SWP interface (SLINTi) connected to said master SWP interface of said NFC element through a controllably switchable SWP link (LK) and management means (PRM, CTLM, AMGi) configured to control said SWP link switching for selectively activating at once only one slave SWP interface on said SWP link. | 02-06-2014 |
20140201815 | ACCESS CONTROL MECHANISM TO A SECURE ELEMENT COUPLED TO AN NFC ROUTER - The invention relates to a method of protecting a security module ( | 07-17-2014 |