| Patent application number | Description | Published |
|---|
| 20080299936 | METHOD AND DEVICE FOR THE ANALOG PROCESSING OF A RADIO SIGNAL FOR A RADIO FREQUENCY RECEIVER - A device processes a received radio signal. Circuitry formulates voltage samples of the radio signal. Analog processing of those samples is performed. Then, digital processing is performed on the output of the analog processing. The circuitry for formulating voltage samples is configured to ensure a processing of the samples prior to the digital processing. | 12-04-2008 |
| 20090102316 | LAMB WAVE RESONATOR - A Lamb wave resonator includes a piezoelectric layer, and a first electrode against a first face of the piezoelectric layer. The first electrode includes fingers and a contact arm, with each finger including a first side in contact with the contact arm and two other sides parallel to one another. Portions of the piezoelectric layer are at least partially etched between the two fingers to form a recess. The fingers are spaced apart from one another by a distance W calculated according to the following equation: | 04-23-2009 |
| 20090251235 | BULK ACOUSTIC WAVE RESONATOR FILTER BEING DIGITALLY RECONFIGURABLE, WITH PROCESS - A filtering circuit with BAW type acoustic resonators having at least a first quadripole and a second quadripole connected in cascade, each quadripole having a branch series with a first acoustic resonator of type BAW and a branch parallel with each branch having an acoustic resonator of type BAW, the first acoustic resonator having a frequency of resonance series approximately equal to the frequency of parallel resonance of the second acoustic resonator, the branch parallel of the first quadripole having a first capacitance connected in series with the second resonator and, in parallel with the capacitance, a first switching transistor to short circuit the capacitance. | 10-08-2009 |
| 20090256650 | FILTERING CIRCUIT WITH COUPLED ACOUSTIC RESONATORS - A filter with coupled resonator having a substrate; an acoustic mirror intended to support acoustic resonators, and to isolate these resonators from the substrate; a first structure with an upper resonator and a lower resonator coupled to one another through at least one layer of acoustic coupling; a second structure with an upper resonator and a lower resonator coupled to one another through at least one layer of acoustic coupling; the lower resonators of the first and second structure having the same electrodes. The first and second structures are connected via a fifth resonator for which electrodes and the piezoelectric layer of the lower resonators are of the first and second structure. | 10-15-2009 |
| 20090302959 | SYNCHRONOUS DISTRIBUTED OSCILLATOR - A distributed oscillator includes an odd number of serially connected amplifying elements. An output of a last amplifying element is looped back to an input of a first amplifying element via a first transmission line. The oscillator oscillates at a first frequency f | 12-10-2009 |
| 20100060386 | BULK ACOUSTIC WAVE RESONATOR WITH ADJUSTABLE RESONANCE FREQUENCY AND USE OF SUCH A RESONATOR IN THE FIELD OF TELEPHONY - A bulk acoustic wave resonator has an adjustable resonance frequency. A piezoelectric element is provided having first and second electrodes. A switching element is provided in the form of a MEMS structure which is deformable between a first and second position. The switching element forms an additional electrode that is selectively disposed on top of, and in contact with, one of the first and second electrodes. This causes a total thickness of the electrode of the resonator to be changed resulting in a modification of the resonance frequency of the resonator. | 03-11-2010 |
| 20100109770 | RECONFIGURABLE POWER AMPLIFIER AND USE OF SUCH AMPLIFIER FOR MAKING A MULTI-STANDARD AMPLIFICATION STAGE FOR MOBILE PHONE COMMUNICATIONS - A reconfigurable power amplifier includes at least one amplification circuit (E | 05-06-2010 |
| 20100301987 | MILLIMETER WAVE TRANSFORMER WITH A HIGH TRANSFORMATION FACTOR AND A LOW INSERTION LOSS - A millimeter wave transformer including, at its primary, a turn formed of a conductive track made in at least one first metallization level, and, at its secondary, a winding in front of the primary turn, including at least one turn formed of a conductive track made in at least one second metallization level isolated from the at least one first level, the track width of the primary turn being at least equal to the total width of the secondary winding. | 12-02-2010 |
| 20110018637 | RADIOFREQUENCY SIGNAL POWER AMPLIFICATION METHOD AND DEVICE - A radiofrequency signal power amplification circuit may include a signal input for receiving the radiofrequency signal, an amplification stage coupled to the signal input and having at least one power transistor, a biasing stage for delivering a bias voltage to the amplification stage, and a processing stage. The processing stage may include a processing input coupled to the signal input, a processing output for delivering a bias current modulated at least in amplitude to the biasing stage, and an amplitude modulator coupled between the processing input and the processing output and configured to determine an envelope signal representative of the envelope of the radiofrequency signal, for modulating the amplitude of the envelope signal based on a variable voltage setpoint and for generating the amplitude-modulated bias current based on the modulated envelope signal. | 01-27-2011 |
