Patent application number | Description | Published |
20080209155 | METHOD FOR CONFIGURING A MEMORY SPACE DIVIDED INTO MEMORY BANKS - A method for configuring a memory space, the method including reading a piece of configuration information in the memory space, determining a division of at least one part of the memory space into memory banks according to the configuration information read; and allocating to each of the memory banks an access number to be used to access a data location in the memory bank, in combination with a logic address of the location in the memory bank. | 08-28-2008 |
20080211562 | METHOD AND DEVICE FOR GENERATING A CLOCK SIGNAL - A method and device for generating a clock signal, the method including measuring, using a first clock signal, a characteristic of a reference event in a received signal, determining, using the first clock signal, a variation of a characteristic of a second event in a received signal, correcting the measurement according to the variation of the characteristic of the second event, and generating a second clock signal using the first clock signal according to the corrected measurement. | 09-04-2008 |
20080212346 | ANTENNA IMPEDANCE MODULATION METHOD - A method for modulating the impedance of an antenna circuit supplying pump signals to a charge pump comprising at least one first pump stage and one last pump stage, the last pump stage supplying a continuous voltage. The output of the first pump stage is short-circuited by means of a switch and the last pump stage goes on pumping electric charges and supplying the continuous voltage. Application in particular to RFID passive transponders. | 09-04-2008 |
20080212360 | PERSISTENT VOLATILE MEMORY CELL - A persistent volatile memory cell memorizes a binary datum during a retention time independent from a supply voltage of the memory cell. The memory cell comprises a capacitive memory point supplying a persistent voltage and having a determined discharge time, a switch for triggering the discharge of the memory point when an erase signal has an active value, a switch for triggering the charge of the memory point when a write signal has an active value, and a sense-amplifier circuit having an input receiving the persistent voltage, and an output supplying the binary datum. The memory cell can be applied to the management of an inventory flag in a contactless integrated circuit. | 09-04-2008 |
20090022260 | BINARY FREQUENCY DIVIDER - A binary frequency divider includes a counter paced by an input signal, means for comparing a counting value with first and second threshold values and supplying first and second control signals synchronized with variation edges of a first type of the input signal. The divider includes means for supplying at least one third control signal shifted by a half-period of the input signal in relation to one of the first or second control signals, and control means for generating the output signal using control signals chosen according to the value of at least one least significant bit of the division setpoint. Application is mainly but not exclusively to UHF transponders. | 01-22-2009 |
20090066483 | PASSIVE CONTACTLESS INTEGRATED CIRCUIT COMPRISING A FLAG FOR MONITORING AN ERASE/PROGRAMMING VOLTAGE - A passive contactless integrated circuit includes an electrically programmable non-volatile data memory (MEM), a charge accumulation booster circuit for supplying a high voltage necessary for writing data in the memory. The integrated circuit includes a volatile memory point for memorizing an indicator flag, and circuitry for modifying the value of the indicator flag when the high voltage reaches a critical threshold for the first time after activating the booster circuit. | 03-12-2009 |
20090094410 | METHOD FOR BLOCK WRITING IN A MEMORY - A method is provided for block writing in an electrically programmable non-volatile memory, in which a block to be written in the memory includes at least one word. The method includes determining a word write time by dividing a fixed block write time by the number of words in the block to be written, and controlling the memory to successively write each word in the memory during the write time. | 04-09-2009 |
20090101716 | NFC READER HAVING A PASSIVE OPERATING MODE WITH LOW ELECTRICAL CONSUMPTION - An inductive coupling reader includes a passive interface circuit for modulating the impedance of an antenna circuit and extracting from the antenna circuit a data signal and a RF clock signal, and circuitry for coupling the reader to a removable security module. The reader includes an emulation circuit for opening a RF transmission channel with another reader, a non-removable electrical link linking the emulation circuit to the passive interface circuit, by which the data signal and the RF clock signal are supplied to the emulation circuit, and a data bus clocked by a bus clock signal having a frequency inferior to the frequency of the RF clock signal, for linking the emulation circuit to the removable security module. The reader has low electrical consumption. | 04-23-2009 |
20100097843 | EXTRACTION OF A BINARY CODE BASED ON PHYSICAL PARAMETERS OF AN INTEGRATED CIRCUIT - An integrated cell and method for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable. | 04-22-2010 |
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 |