Patents Assigned to EM Microelectronic-Marin
  • METHOD FOR PROVIDING A READER WITH A TAMPER LOOP STATUS OF A RADIO-FREQUENCY TRANSPONDER
    Publication number: 20180129926
    Abstract: A method provides a tamper loop status of a radio-frequency transponder to a reader. The transponder communicates with the reader at a first frequency according to a first communication protocol. The transponder includes a first non-volatile memory for storing a first set of data of the first communication protocol. The first memory includes a user memory having two portions and each portion includes a data item specific to a status of the tamper loop. The method is performed by the transponder after receiving a request according to the first protocol to read the user memory and includes generating a logical view of the user memory, the logical view including only one of the two portions that is selected according to a value of a binary parameter representative of a status of the tamper loop. The method also includes providing the logical view to the reader via the first protocol.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 10, 2018
    Applicant: EM Microelectronic-Marin S.A.
    Inventors: Juergen RIEDEL, Paul MULLER, Goran STOJANOVIC, Jan BICAK
  • Method for measuring a physical parameter and electronic circuit for implementing the same
    Patent number: 9952262
    Abstract: The physical parameter measurement method is performed using an electronic circuit (1) with a resistive sensor (2). The resistive sensor includes two resistors (R1, R2) mounted in series, whose connection node connected to a moving mass (M), is connected to a first input of an amplifier-comparator (3). A second input of the amplifier-comparator receives a reference voltage. One output of the amplifier-comparator is connected to a logic unit (4), which provides a digital output signal (OUT). A digital-to-analogue converter (5) provides a measurement voltage (Vdac), as a function of a digital signal provided by the logic unit, to the first resistor (R1) in a first phase of a measurement cycle, whereas the second resistor (R2) is polarized by a polarization voltage, and to the second resistor in a second phase, whereas the first resistor is polarized by a polarization voltage via a switching unit.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: April 24, 2018
    Assignee: EM MICROELECTRONIC MARIN S.A.
    Inventors: Alexandre Deschildre, Sylvain Grosjean
  • Regulation circuit for a charge pump and method of regulation
    Patent number: 9929641
    Abstract: The present invention relates to a regulation circuit for a charge pump and to a method of regulating a charge pump. The regulation circuit comprises a detector operable to analyze a temporal activity of the charge pump, and a pump clock generator coupled to an output of the detector and having an output coupled to a clock input of the charge pump to vary a pump clock frequency of the charge pump in dependence of the analysis of the detector, or a supply or voltage generator coupled to an output of the detector and having an output coupled to the charge pump to vary an amplitude of a clock signal within the charge pump in dependence of the analysis of the detector.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: March 27, 2018
    Assignee: EM MICROELECTRONIC MARIN S.A.
    Inventors: Lubomir Plavec, Filippo Marinelli
  • Receiver unit for an RF tag
    Patent number: 9922214
    Abstract: A receiver unit for a radio frequency (RF) tag is provided, including a first input terminal and a second input terminal each being connected to an antenna; a communication stage configured to demodulate and/or to modulate an incoming signal in the communication stage; and a power stage including a voltage converter circuit being configured to supply power to the receiver unit, and a regulation circuit being configured to limit an output voltage of the voltage converter circuit, wherein the regulation circuit includes a regulator circuit being configured to determine a first current value and a second current value, the second current value being a current value provided in addition to the first current value, and, if the second current value exceeds a predetermined threshold value, to supply a control signal to a limiter circuit configured to limit an input voltage of the voltage converter circuit.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 20, 2018
    Assignee: EM Microelectronic-Marin SA
    Inventors: Christian Lamothe, Thomas Coulot, Goran Stojanovic
  • HUMIDITY SENSOR WITH HEAT MODULE
    Publication number: 20180074003
    Abstract: A humidity sensor is provided, including a silicon base plate on which several intermetallic dielectric layers, each of which is provided with a metallic zone, and a metal layer are disposed, wherein the metal layer is etched to form two electrodes, each including an armature provided with a plurality of arms, wherein each armature is mounted so that the arms are interlaced to have arms positioned to face one another. The sensor also includes a temperature module or a heating module.
    Type: Application
    Filed: February 24, 2016
    Publication date: March 15, 2018
    Applicant: EM Microelectronic-Marin SA
    Inventor: Pinchas NOVAC
  • Method and device for bluetooth low power communication
    Patent number: 9918186
    Abstract: A method for transmitting a beacon message, the method generating, with a beacon generating device at least one beacon message, wherein the at least one beacon message is defined by a beacon message format, wherein the beacon message format comprises a preamble field, an access address field, a protocol data unit (PDU) field and a cyclic redundancy check (CRC) field, wherein the PDU field comprises at least one electronic product code (EPC) encoded EPC-PDU field, and transmitting, with the beacon generating device, the at least one beacon message using a Bluetooth Low Energy (BLE) wireless communication protocol to a transmission area within a transmission range of the beacon generating device for reception by one or more beacon receiving devices located in the transmission area.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 13, 2018
    Assignee: EM Microelectronic-Marin SA
    Inventors: Mark Jakusovszky, Marc Morin, James Springer
  • INTEGRATED CIRCUIT DIE HAVING A SPLIT SOLDER PAD
    Publication number: 20180053738
    Abstract: An integrated circuit die having at least two bond pads, a redistribution layer, the redistribution layer including at least one solder pad including comprising two portions arranged to enable an electrical connection between each other by a same solder ball placed on the solder pad, but electrically isolated of each other in the absence of a solder ball on the solder pad at least two redistribution wires, each one connecting one of the two portions to one of the two bond pads, a first bond pad connected via a first redistribution wire to a first portion of the solder pad being dedicated to digital ground and a second bond pad connected via a second redistribution wire to a second portion of the solder pad being dedicated to analog ground.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Applicant: EM Microelectronic-Marin SA
    Inventors: Christoph KURATLI, Yves DUPRAZ
  • INTEGRATED CIRCUIT DIE HAVING A SPLIT SOLDER PAD
    Publication number: 20180053699
    Abstract: The invention relates to an electronic system comprising: an integrated circuit die having: at least 2 bond pads a redistribution layer, said redistribution layer having: at least a solder pad comprising 2 portions arranged to enable an electrical connection between each other by a same solder ball placed on said solder pad, but electrically isolated of each other in the absence of a solder ball on the solder pad at least 2 redistribution wires, each one connecting one of the 2 portions to one of the 2 bond pads, a second bond pad connected via a second redistribution wire to a second portion of the solder pad being dedicated to testing said integrated circuit die a grounded printed circuit board track, a solder ball being placed between the solder pad and the printed circuit board track.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Applicant: EM Microelectronic-Marin SA
    Inventors: Christoph KURATLI, Yves Dupraz
  • ASSEMBLY OF CONNECTED TERMINALS FOR PROGRAMMING AND MANAGING A SELECTION OF FUNCTIONS
    Publication number: 20180047013
    Abstract: An assembly includes a main terminal equipped with a communication module using at least a first communications protocol capable of connecting the main terminal to a communication network, which enables the use of at least one function, the main terminal being arranged to use at least one configuration program, and the configuration program enables at least one preferred function to be selected and a code representing the selected preferred function to be generated, and a second communications protocol. The assembly additionally comprises at least one secondary terminal equipped with a passive communication module using the second communications protocol to communicate with the main terminal in order to protect the code representing the selected preferred function.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 15, 2018
    Applicant: EM Microelectronic-Marin S.A.
    Inventors: Georges Nicolas HAYEK, Michel WILLEMIN, Jean-Claude MARTIN, Thomas GYGER
  • Electronic memory device and test method of such a device
    Patent number: 9881692
    Abstract: The electronic memory device comprises a non-volatile memory matrix organized in rows and columns, an address decoder with address input lines for selecting a row according to a particular address given on the address input lines. Additional address mask input lines are provided, each address mask input line being assigned to an address input line, wherein an address mask input line in activated state has the effect of ignoring the assigned address input line. The method for testing said electronic memory device is performed with a significant lower number of read/write operations, since by ignoring a particular address line a plurality of write operations can be performed simultaneously.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: January 30, 2018
    Assignee: EM Microelectronic-Marin SA
    Inventors: Lubomir Plavec, Filippo Marinelli, Miloslav Kubar
  • Electronic device including a very low voltage generator powering a battery
    Patent number: 9793737
    Abstract: The electronic device includes a battery, an electrical energy generator and, between the generator and the battery, an inductive voltage boost converter. The device further includes a circuit for measuring the voltage supplied by the generator which is formed by: a measuring capacitor arranged in parallel with the battery and having a measuring terminal connected to a voltage measuring circuit, a diode located between the inductor output terminal and the measuring terminal, a switch arranged between the measuring terminal and the earth terminal. A control unit is arranged to periodically activate a mode for measuring a voltage at the measuring terminal. The measuring capacitor is selected such that the measuring voltage is much higher than the generator voltage and lower than the battery voltage at a minimum generator voltage allowing charging of the battery.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: October 17, 2017
    Assignee: EM Microelectronic-Marin S.A.
    Inventors: Jér ôme Saby, Yves Theoduloz, Cyril Marti
  • SHOCK DETECTOR CIRCUIT
    Publication number: 20170285577
    Abstract: An electronic device including: a calculation unit configured to generate a signal representative of a physical magnitude, for a motor driving a display device, the motor including two terminals, one positive and one negative, via which the calculation unit controls the motor; at least one shock detection circuit connected between the calculation unit and one terminal of the motor for detection of an external shock applied to the motor. The shock detection circuit includes a comparison part comparing an induced voltage generated in the motor following a shock to a predetermined reference voltage to identify a shock, and a selection part.
    Type: Application
    Filed: September 3, 2015
    Publication date: October 5, 2017
    Applicant: EM Microelectronic-Marin SA
    Inventors: Yves GODAT, Nicolas JEANNET
  • Authentication by use of symmetric and asymmetric cryptography
    Patent number: 9774576
    Abstract: The present invention concerns a mutual authentication method in a communication system. According to the method, a first communication device (1), such as an RFID reader, authenticates a second communication device (3), such as an RFID tag, by using an asymmetric authentication protocol based on a generated a session key. The tag authenticates the reader by using a symmetric communication protocol based on a generated other session key. At least a portion of the session key is used to generate the other session key.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 26, 2017
    Assignee: EM Microelectronic-Marin S.A.
    Inventors: James J. Springer, Stephanie Salgado
  • Operating a FIFO memory
    Patent number: 9767034
    Abstract: The present invention concerns a method of operating a first-in first-out memory (9) arranged to store measurement data samples measured by a plurality of data measurement sensors (1, 3, 5), which can operate at various sampling rates. The oldest measurement data sample in the memory (9) is arranged to be read first before the newer measurement data samples. The method comprises: receiving measurement data samples from at least two data measurement sensors (1, 3, 5); and saving the received measurement data samples in the memory (9). Each of the measurement data samples saved in the memory is associated with a tag which is also saved in the memory (9) and which identifies the data measurement sensor (1, 3, 5) which measured the respective measurement data sample.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 19, 2017
    Assignee: EM MICROELECTRONIC-MARIN SA
    Inventors: Jean-Michel Daga, Alexandre Deschildre
  • Memory circuit including a current switch and a sense amplifier
    Patent number: 9761283
    Abstract: A memory circuit is provided, including at least one bit cell configured to store data and having a first terminal and a second terminal, one of the terminals being coupled to a bit-line; at least one current switch connected to the bit-line and connected to a current source and being configured to selectively provide at least a read current to the bit cell; and a sense amplifier having at least one input connected to a sensing node on the bit-line, wherein the sensing node is disposed between the bit cell and the at least one current switch.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 12, 2017
    Assignee: EM Microelectronic-Marin SA
    Inventors: Lubomir Plavec, Filippo Marinelli
  • Random number generator
    Patent number: 9747075
    Abstract: The random number generator comprises a linear feedback shift register (10), which comprises a series of storage elements (14(1), 14(2), . . . , 14(n)), a first input (11) to receive a clock signal from a clock oscillator (28), a feedback line (20) connecting the output of a last storage element (14(n)) with an input of at least a first storage element (14(1)), a second input (22) coupled with the feedback line (20) via at least one cell (15) and wherein the output of the cell (15) is coupled to an input of at least one of the storage elements (14(1), 14(2), . . . , 14(n)).
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: August 29, 2017
    Assignee: EM Microelectronic-Marin S.A.
    Inventors: Tomas Hrdy, Michal Prazan, Pavel Holoubek
  • DC-DC converter with low start-up power and voltage
    Patent number: 9742271
    Abstract: A DC-DC converter (1) with low start-up power and voltage includes an inductor (3) connected to an input voltage source (2), a switch (11) connected to the inductor and controlled by a controller (10) and a diode (12) connected to a connection node of the inductor and the switch to provide an output voltage (Vout). The controller includes an oscillator and a monostable element, which are powered by the input voltage (Vin). The oscillator provides an oscillation signal (OSC) having a period T of a switching cycle of the switch. The monostable element (103) is controlled by the oscillation signal to determine a duration Tn of conduction of the switch, during which an increasing current (IL) flows through the inductor. The input impedance of the DC-DC converter increases, when the input voltage (Vin) drops below a first voltage threshold with a decreasing duty cycle d=Tn/T.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 22, 2017
    Assignee: EM Microelectronic-Marin SA
    Inventors: Yves Theoduloz, Jerome Saby, Cyril Marti
  • Beacon comprising multiple communication interfaces with secure deactivation/reactivation
    Patent number: 9735840
    Abstract: A communication beacon including a calculation unit associated with a memory module for data storage and with a communication circuit, the beacon being powered by a power unit, the communication circuit including a first interface unit using a first protocol, a second interface unit using a second protocol, the memory unit including a first memory unit and a second memory unit each memory unit being electrically connected to each interface unit.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 15, 2017
    Assignee: EM Microelectronic-Marin SA
    Inventor: Hugues Blangy
  • Smart battery with a supply voltage control circuit and method for manufacturing the battery
    Patent number: 9728987
    Abstract: The smart battery (1) includes an electronic module provided with an electronic circuit (8) for controlling the supply voltage, which is disposed in a case having a cover (2) as the external negative terminal, fixed to a cup (3), as the external positive terminal. A first chemical substance (4) as the anode and a second chemical substance (5) as the cathode, are inside the case. The electronic module includes a printed circuit board (7) having a first face with conductive paths, connected to the electronic circuit, and a second insulating face fixed to the second chemical substance. The electronic circuit is connected at output to a first connection pad connected to the cup. The electronic circuit is connected to the chemical substances by a second connection pad on a first tab (7?) and by a third connection pad on a second tab (7?) folded at 180° on the second face of the printed circuit board.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 8, 2017
    Assignee: EM MICROELECTRONIC-MARIN SA
    Inventors: Pascal Haering, Pascal Maire, Fabien Malacarne, Cyril Marti, Yves Theoduloz
  • METHOD AND DEVICE FOR BLUETOOTH LOW POWER COMMUNICATION
    Publication number: 20170180916
    Abstract: A method for transmitting a beacon message, the method generating, with a beacon generating device at least one beacon message, wherein the at least one beacon message is defined by a beacon message format, wherein the beacon message format comprises a preamble field, an access address field, a protocol data unit (PDU) field and a cyclic redundancy check (CRC) field, wherein the PDU field comprises at least one electronic product code (EPC) encoded EPC-PDU field, and transmitting, with the beacon generating device, the at least one beacon message using a Bluetooth Low Energy (BLE) wireless communication protocol to a transmission area within a transmission range of the beacon generating device for reception by one or more beacon receiving devices located in the transmission area.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Applicant: EM Microelectronic-Marin SA
    Inventors: Mark JAKUSOVSZKY, Marc MORIN, James Springer