Patent application number | Description | Published |
20080312843 | PROCESS AND SYSTEM FOR ON-LINE AND IN SITU COUNTING OF CELLS IN A BIOLOGICAL CULTURE MEDIUM - A process for on-line and in situ counting of cells in a biological culture medium, comprising the following steps:
| 12-18-2008 |
20140146006 | METHOD FOR DETECTING AN OBJECT OF INTEREST IN A DISTURBED ENVIRONMENT, AND GESTURE INTERFACE DEVICE IMPLEMENTING SAID METHOD - A method is provided for detecting at least one object of interest moving in an environment, and implements at least one capacitive coupling measurement electrode with the object of interest and with one or more other “disrupting” objects present in the environment. Included in the method, for at least one of the measurement electrodes, are steps of: (i) measuring the total capacity between the measurement electrode and the environment; (ii) storing the total capacity; (iii) calculating a leakage capacity due to the disrupting objects on the basis of predetermining a minimum value within a history of pre-stored total capacity measurements; (iv) calculating a capacity of interest due to the objects of interest while subtracting the leakage capacity from the total measured capacity; and (v) processing the thus-calculated capacity of interest to produce information for detecting the object or objects of interest. Also included is a device implementing the present method. | 05-29-2014 |
20140379287 | METHOD OF CAPACITIVE MEASUREMENT BY NON-REGULAR ELECTRODES, AND APPARATUS IMPLEMENTING SUCH A METHOD - A method is provided for absolute capacitive measurement of an object relative to at least two hide—pendent electrodes integrated into a man-machine interface device for detecting the object. The method includes: a) for each electrode, a value of absolute capacitance between the electrode and the object is measured, a′) a prediction is made by applying a multi-variable nonlinear prediction model to the actual values of absolute capacitance to obtain an image of probability densities, these probability densities considered to be actual corrected values that are used for detecting the object. The multi-variable nonlinear prediction module is optionally obtained by nonlinear regression on the basis:—of actual values of absolute capacitance that are obtained for a plurality of object positions relative to the at least two electrodes, and—of an image of probability densities that is obtained for a plurality of object positions relative to idealized electrodes. | 12-25-2014 |
Patent application number | Description | Published |
20100301955 | Frequency divider using an injection-locking-range enhancement technique - A locking range enhancement technique is described that steers away part of the DC current and reuses it to generate more injected AC current to the injection-locked resonator-based frequency dividers (ILFDs). The injection-enhanced ILFDs maintain the key features of ILFDs, which are high speed and low power consumption, without requiring any extra inductive component and thus extra chip area. | 12-02-2010 |
20110291807 | Low voltage low power CMOS temperature sensor circuit - The present invention provides an ultra-low power embedded CMOS temperature sensor based on serially connected subthreshold MOS operation particularly well suited for passive RFID food monitoring applications. Employing serially connected subthreshold MOS as sensing element enables reduced minimum supply voltage for further power reduction, which is very important in passive RFID applications. The temperature sensor may be part of a passive RFID tag and incorporates a temperature sensor core, proportional-to-absolute-temperature (PTAT) and complimentary-to-absolute-temperature (CTAT) delay generators, and a time-to-digital differential readout circuit. In one embodiment, the sensor is embedded inside a passive UHF RFID tag fabricated with a conventional 0.18 μm 1P6M CMOS process. With the sensor core working under 0.5 V and digital interfacing under 1 V, the sensor dissipates a measured total power of 119 nW at 33 samples/s and achieves an inaccuracy of +1/−0.8° C. from −10° C. to 30° C. after calibration. | 12-01-2011 |
20110298549 | Method and apparatus for tuning frequency of LC-oscillators based on phase-tuning technique - A tunable multiphase ring oscillator includes a plurality of stages connected in series in a ring structure, where each stage generating a stage output from a stage input. Each stage of the tunable multiphase ring oscillator includes a plurality of trans-conductance cells, each generating an output from at least one portion of the stage input. Each stage further includes at least one phase shifting module for imparting at least one phase shift to the at least one portion of the stage input, an oscillator unit for generating the stage output from a combination of the plurality of outputs, and means for varying at least one of the plurality outputs so as to adjust a phase of the stage output. | 12-08-2011 |
Patent application number | Description | Published |
20130002254 | METHOD FOR CREATING A MODULE FOR CONTROLLING A HIGH-FREQUENCY ANTENNA FOR A NUCLEAR MAGNETIC RESONANCE IMAGING APPARATUS - A method for creating a module for controlling a magnetic resonance imaging apparatus antenna, the method including: determining magnetic field distribution mapping B | 01-03-2013 |
20130015858 | LINEAR RESONATOR OF A HIGH-FREQUENCY ANTENNA FOR A NUCLEAR MAGNETIC RESONANCE IMAGING APPARATUSAANM Ferrand; GuillaumeAACI ParisAACO FRAAGP Ferrand; Guillaume Paris FRAANM Luong; MichelAACI SceauxAACO FRAAGP Luong; Michel Sceaux FRAANM France; AlainAACI BordeauxAACO FRAAGP France; Alain Bordeaux FR - A linear resonator of a high-frequency antenna suitable for emitting a radiofrequency energisation signal and for receiving a radiofrequency relaxation signal, the linear resonator includes a radiating element to emit a radiofrequency energisation signal and receive a radiofrequency relaxation signal. The resonator also includes: a balun circuit including a power-supply line and two coupling lines; a substrate made of a dielectric material, supporting the radiating element which contains the balun circuit; two contact points connecting the balun circuit to the radiating element, the contact points being formed by one of the ends of the coupling lines extending out of the substrate, the distance separating the two contact points being selected so as to ensure the impedance matching of the resonator; and a chip floorplan separating the coupling lines from the radiating element. | 01-17-2013 |
20140239953 | HIGH FREQUENCY MULTIPLE-CHANNEL ANTENNA, PARTICULARLY FOR A NUCLEAR MAGNETIC RESONANCE IMAGING DEVICE - A multiple-channel antenna includes a first loop resonator including a radiating element forming a loop; a second resonator adjacent to the first loop resonator including a radiating element; wherein the radiating element of the first loop resonator has a main surface defined along a first median plane; a secondary surface defined along a second median plane, the secondary surface delimiting an appendix of the radiating element placed facing the second resonator and having an inclination relative to the median plane of the main surface and wherein the second resonator is a linear resonator with a straight radiating element. | 08-28-2014 |
20150108999 | DEVICE FOR MEASURING THE QUALITY FACTOR OF A CAVITY, IN PARTICULAR A SUPERCONDUCTING CAVITY PERTURBED BY RESONANT ELECTRON DISCHARGES - A device for measuring the unloaded quality factor of a resonant cavity which has an input port to accept incident power and an output port to measure the dissipated power, wherein the device includes: a transmission line designed to be coupled to the input port of the resonant cavity to be characterized, which has a coupling coefficient β | 04-23-2015 |
20150253398 | CIRCULARLY POLARIZED TRANSCEIVER FOR MAGNETIC RESONANCE IMAGING - A patch resonator for nuclear magnetic resonance device includes a ground plane, a conductive element, a dielectric element positioned between the ground plane and the conductive element, the resonator being able to transmit a circularly polarized radiofrequency signal when the resonator is supplied by a first transmission line connected to the conductive element via a first connection point and able to receive alternatively a radiofrequency signal circularly polarized in the opposite direction when the resonator is connected to a second transmission line via a second connection point, the resonator including a switch mounted in parallel on each transmission line at a distance from the ground plane corresponding to (2n+1)λ/4 with n a natural integer, and λ the wavelength of the guided wave in the transmission line at the operating frequency of the resonator, the switch making it possible to electrically connect/disconnect the transmission lines from the conductive element. | 09-10-2015 |