Patent application number | Description | Published |
20090066599 | Wide Band Dipole Antenna - The present invention relates to a compact wideband antenna of the dipole type comprising a first | 03-12-2009 |
20090102736 | Monopole antenna - The invention relates to a monopole antenna with a radiating element mounted onto a base by means of a mast, of which the radiating element is formed from two conductive strands, in U, the length L of each strand being chosen such that ¼ λg≦L≦½ λg, λg being the wavelength in a strand at a central radiation frequency F | 04-23-2009 |
20090153425 | Dual-Band Antenna Front-End System - The present invention relates to a multiple-port dual-band antenna system and the associated interface formed by DPDT or SPDT switches, that can be integrated on one and the same multi-layer structure. | 06-18-2009 |
20090257535 | Method and Device for Compensating the Doppler Effect for a Digital Signal Receiver - The invention relates to a method of compensating the Doppler effect for a mobile receiver. This method consists in producing a phase-locked loop based on the signal to be demodulated to correct the frequency control of the tuner element and thus the drift due to the Doppler effect. The invention also relates to a receiver implementing this method. | 10-15-2009 |
20090303128 | Optically Reconfigurable Multi-Element Device - The invention relates to an optically reconfigurable multi-element device. An optical matrix formed by a set of optical elements, such as elements of OLED type, makes it possible to actuate a matrix of photoconductive elements, which will allow connection to be made between the various elements of the device to be reconfigured. | 12-10-2009 |
20100127951 | MULTI- ANTENNA SYSTEM FEED DEVICE AND WIRELESS LINK TERMINAL EQUIPPED WITH SUCH A DEVICE - A multi-antenna system feed device and a terminal including such a device is suggested. | 05-27-2010 |
20100134700 | CHANNEL FILTER, IN PARTICULAR FOR A DIGITAL TELEVISION RECEIVER - The channel filter includes at a least one basic bandpass filter centred on the frequency of the channel, in series with two cascade-connected reflective filters whose bandwidths are located either side of the basic bandpass filter encompassing the channels adjacent to the channel. A reflective filter can include a 90° directional coupler combined with a bandpass filter designed to ensure transfer matched to the load impedance of the coupler with the input of the bandpass filter connected to a directional coupler output port, the input of the directive filter being formed by input port of the coupler and the output of the directive filter being formed by a port recovering the bandpass filter reflection coefficient. The invention applies in particular to the implementation of the DVB-T and DVB-H standards aimed at receiving digital television programmes from fixed or mobile multistandard terminals such as mobile telephones, PDAs or other multimedia receivers. | 06-03-2010 |
20100207837 | System of Diversity Dipole Antennas - The present invention relates to a diversity antennas system comprising at least two antennas of the dipole type each formed by a first and a second conductive arm, supplied differentially wherein the two antennas comprise a common arm called first arm forming at least one cover for an electronic card and each one a second arm mounted in rotation at one extremity of the first arm. | 08-19-2010 |
20100240301 | REPEATER FOR RADIO FREQUENCY SIGNALS, AND FOR DIGITAL TELEVISION SIGNALS IN PARTICULAR - This invention concerns a repeater for radio frequency signals. | 09-23-2010 |
20100245207 | MULTI-SECTOR RADIATING DEVICE WITH AN OMNI-DIRECTIONAL MODE - The present invention relates to a multi-sector radiating device intended to receive and/or transmit electromagnetic signals, comprising at least, arranged on a plane substrate: | 09-30-2010 |
20110165853 | Antenna system comprising an electrically small antenna for reception of UHF band channel signals - The invention relates to an antenna system for reception of channel signals from the UHF band by a receiver, comprising an electrically small antenna. | 07-07-2011 |
20110187619 | SYSTEM OF TWO ANTENNAS ON A SUPPORT - The invention concerns a system of antennas on the same support. Each antenna is connected to a first port for the emission/reception in a first frequency band, and to a second port for the emission/reception in a second frequency band. The invention consists in a specific dimensioning of the support, such that the difference of the perimetric lengths separating the median points is a function of the half wavelength λ/2 modulo k λ, k positive integer, where λ is the wavelength corresponding to a working frequency fr. | 08-04-2011 |
20110312276 | Method for calibrating a terminal with a multi-sector antenna, and mesh network terminal - The invention relates to a method for calibrating a terminal with a multi-sector antenna in a mesh broadcasting network that comprises at least one other terminal. The method includes: the selection of one sector of the terminal antenna to be calibrated, the reception by the selected sector, of identification signals transmitted by each of the other terminals present in the network, as well as the information on the received signal level; and the storage, for each sector, of different identification signals of the terminals present in the network, and of the information on received signal level, into the memory of the terminal to be calibrated. | 12-22-2011 |
20120114071 | METHOD OF RESENDING DIGITAL SIGNALS - The invention relates to a method of resending at least one digital signal, comprising a step of reception by cable of the signal comprising signaling information, a step of resending of this signal at a resend frequency by an antenna, and also comprising a step of selecting the resend frequency as a function of the signaling information; a step of transposing the signal into the selected frequency of the resend signal and a step of monitoring and adjusting the frequency of the resend signal as a function of the selected frequency of the resend signal. | 05-10-2012 |
20120284766 | BAND-STOP FILTER - The present invention relates to a band rejection filter. The band rejection filter includes a first signal transmission channel called a direct channel and a second signal transmission channel called a secondary channel. The direct channel and the secondary channel being designed to introduce at a first rejection frequency a phase difference of 180° between the signal circulating via the direct channel and the signal circulating via the secondary channel. Additionally, the secondary channel includes a filtering element for which the cut-off frequency is different from the first rejection frequency in a way to create a second rejection frequency. | 11-08-2012 |
20130002373 | HIGH REJECTION BAND-STOP FILTER AND DIPLEXER USING SUCH FILTERS - The present invention relates to a high rejection stop band filter and a diplexer using such filters. | 01-03-2013 |
20130083833 | System forTransmission of Signals in a Domestic Environment - The present invention relates to a wireless transmission system for signals intended more specifically for a domestic environment. It includes a central terminal comprising at least m transmission channels and n directive transmission antennas intended to transmit first signals at least one client terminal having at least one reception channel connected to a reception antenna in order to receive the first signals said central terminal and said client terminal communicating in a transmission channel having a predetermined frequency band, and an estimation device able to generate an item of information representative of the reception quality of first signals in at least one point of a predetermined geographic zone associated with the client terminal and a return channel in order to transmit said at least one item of information to the control means of the central terminal. | 04-04-2013 |
20130249770 | DEVICE FOR RECEIVING OR EMITTING/RECEIVING MIMO SIGNALS - The invention relates to a device for receiving signals in a MIMO system comprising:
| 09-26-2013 |
20140021957 | APPARATUS AND METHOD FOR DETECTING FLUORESCENT LIGHTING - The present invention suggests an apparatus for detecting the operation status of a fluorescent light source. The apparatus comprises an antenna for receiving and sending electromagnetic waves. The apparatus further comprises a modulation frequency correlator and a signal generator for generating an indication signal. According to a second aspect the present invention proposes a method for detecting the operation status of a fluorescent light source. The method comprises the steps of: receiving an electromagnetic wave; detecting a modulation of the received electromagnetic wave; correlating the modulation frequency of the received electromagnetic wave with a predetermined frequency; generating an indication signal if a correlation between the modulation frequency and the predetermined frequency is detected. | 01-23-2014 |
20140080434 | APPARATUS AND METHOD FOR DETECTING MICROWAVE RADIATION - An apparatus for detecting microwave signals is suggested. The apparatus comprises an antenna for sending and receiving electromagnetic waves a circuit for detecting microwave signals and the signalization stage for generating an indication signal. In addition to that a method for detecting the presence of microwave signals is proposed. The method comprises the following steps | 03-20-2014 |
20140159835 | DUAL-BAND MICROSTRIP-TO-SLOTLINE TRANSITION CIRCUIT - This invention relates to a microstrip to slotline transition circuit operating on two frequency bands, in which a first filtering circuit is connected between a first portion of microstrip line and a first input/output port, said first circuit and the portion of microstrip line being adapted to accept the frequencies from a first frequency band and reject the frequencies of a second frequency band, a second filtering circuit is connected between a second portion of microstrip line and a second input/output port, said second circuit and the portion of microstrip line being adapted to accept the frequencies from the second frequency band and reject the frequencies from the first frequency band, and the slotline is sized to provide an impedance that is substantially equal to the impedance of an open circuit at the coupling zone between the microstrip line and the slotline. | 06-12-2014 |
20140159987 | RADIO FREQUENCY DEVICE WITH COMPENSATION OF PERMITTIVITY DISPERSION OF THE SUBSTRATE AND ADJUSTMENT METHOD - The invention relates to a device for transmitting and/or receiving radio frequency signals comprising at least one antenna and/or at least one filter realised in printed technology on a dielectric substrate. According to the invention, this device is equipped with means for compensating the permittivity dispersions of the substrate. For this purpose, the device comprises a circuit for measuring the dielectric permittivity of the substrate able to deliver a measured permittivity value and adjustment means able to adjust the impedance of the antenna and/or the frequency response of said filter according to said measured permittivity value. | 06-12-2014 |