Patents by Inventor Ali Louzir

Ali Louzir has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System of Diversity Dipole Antennas
    Publication number: 20100207837
    Abstract: 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.
    Type: Application
    Filed: July 19, 2006
    Publication date: August 19, 2010
    Inventors: Philippe Minard, Jean-François Pintos, Ali Louzir, Philippe Gilberton, Jean-Luc Robert, Corinne Nicolas
  • Waveguide to microstrip line transition having a conductive footprint for providing a contact free element
    Patent number: 7746191
    Abstract: The present invention relates to an element of transition between a waveguide and a transition line on a substrate. The element of transition comprises a securing flange on the substrate, the flange being dimensioned so that at least, in the direction microstrip line, the width d of the flange is selected in such a manner as to shift the resonant modes away from the useful band. The invention is used particularly for circuits using SMD techniques at millimeter frequencies.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 29, 2010
    Assignee: Thomson Licensing
    Inventors: Dominique Lo Hine Tong, Philippe Minard, Corinne Nicolas, Ali Louzir, Julian Thevenard, Jean-Philippe Coupez, Christian Person
  • MULTI- ANTENNA SYSTEM FEED DEVICE AND WIRELESS LINK TERMINAL EQUIPPED WITH SUCH A DEVICE
    Publication number: 20100127951
    Abstract: A multi-antenna system feed device and a terminal including such a device is suggested. The device includes at least: a set of Wilkinson combiners, a branch of a combiner feeding an antenna, with the branches connected as inputs to a feed point; a set of switches connected between the antennas and the combiners with each switch switching a combiner branch to its corresponding antenna with the antenna being connected to the line when the switch is closed; A branch feeding an antenna, for instance, will be common to two consecutive combiners of the system. The suggested multi-antenna system feed device applies in particular to the extension of multi-antenna or sector antenna systems, used especially in devices with Multiple Inputs/Outputs of the MiMo type and more specifically to mesh network architectures.
    Type: Application
    Filed: July 22, 2008
    Publication date: May 27, 2010
    Inventors: Jean-Luc Robert, Philippe Minard, Ali Louzir
  • Optimisation of forbidden photo band antennae
    Patent number: 7719478
    Abstract: The present invention relates to photonic band gap antennas. This antenna comprises according to a plane of directions x, y, a radiating source and a photonic band gap structure constituted by parallel metal rods, the rods repeating themselves nx times in the direction x and ny times in the direction y. The height of the rods seen from the radiating source is increasing. The invention is able to control the radiation pattern of the antenna in the vertical plane.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: May 18, 2010
    Assignee: Thomson Licensing
    Inventors: Nicolas Boisbouvier, Ali Louzir, Françoise Le Bolzer, Anne-Claude Tarot, Kouroch Mahdjoubi
  • MULTI-SECTOR ANTENNA
    Publication number: 20100066622
    Abstract: The present invention relates to a multi-sector antenna comprising N (N>1) planar antennas each constituted of a longitudinal radiation slot etched on a first substrate provided with a ground plane and supplied by an excitation line. The N first substrates are fixed on a second common substrate so that the radiation axis of each antenna is parallel to said second substrate, the N first substrates being interconnected around an axis perpendicular to the second substrate. The invention can be applied to high definition wireless cameras.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 18, 2010
    Inventors: Julian Thevenard, Dominique Lo Hine Tong, Ali Louzir, Corinne Nicolas, Christian Person, Jean-Philippe Coupez
  • Method of integrating an identification circuit into a data medium
    Publication number: 20100045438
    Abstract: The present invention relates to a method for integrating an identifier circuit in a data medium formed by at least one dielectric substrate covered by a conductive layer, the conductive layer comprising a part receiving data and a part without data. The method consists in etching in the part without data of the conductive layer, at least one resonating slot forming an antenna and coupling an integrated circuit to the slot.
    Type: Application
    Filed: June 13, 2007
    Publication date: February 25, 2010
    Inventors: Jean-Francois Pintos, Philippe Minard, Ali Louzir
  • SLOT-LINE TYPE MICROWAVE DEVICE WITH A PHOTONIC BAND GAP STRUCTURE
    Publication number: 20100039190
    Abstract: The present invention relates to a microwave device of the slot-line type with a photonic band gap structure, comprising at least: a first substrate in a dielectric material having a first permittivity ?r1, a second substrate in a dielectric material having a second permittivity ?r2, and between the two substrates, a conductive layer in which at least one slot-line is engraved, with, on the face of the first and second substrates opposite the face in contact with the conductive layer, facing the slot-line, periodic metal patterns. The invention enables a compact filtering structure to be realized.
    Type: Application
    Filed: January 3, 2005
    Publication date: February 18, 2010
    Inventors: Nicholas Boisbouvier, Ali Louzir, Francoise Le Bolzer, Anne-Claude Tarot, Kouroch Mahdjoubi
  • Portable device compact antenna
    Patent number: 7642968
    Abstract: The present invention relates to a portable compact antenna comprising a first radiating element of the dipole type, operating in a first frequency band and formed by a first and at least one second conductive arm supplied differentially, the first arm, called cold arm, forming at least one cover for an electronic card wherein the second arm, called hot arm, is extended by a conductive wire element, the length of the assembly formed by the first arm, the second arm and the wire element being chosen to provide an operation in a second frequency band.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: January 5, 2010
    Assignee: Thomson Licensing
    Inventors: Philippe Minard, Jean-François Pintos, Ali Louzir
  • Slot type antenna with integrated amplifiers
    Patent number: 7642980
    Abstract: The present invention relates to a slot type antenna with integrated amplifiers, comprising a substrate S featuring a ground plane G, a longitudinal radiation open slot antenna, a power divider connected to a feeder line, an amplifier connected to each of the outputs of the power divider, such that the amplifiers are supplied in phase opposition, the output of the amplifiers being connected to a power combination circuit directly coupled to the excitation point of the slot type antenna.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: January 5, 2010
    Assignee: Thomson Licensing
    Inventors: Ali Louzir, Dominique Lo Hine Tong, Philippe Minard, Loic Marnat
  • To planar antennas comprising at least one radiating element of the longitudinal radiation slot type
    Publication number: 20090262036
    Abstract: The present invention relates to a planar antenna structure comprising at least one radiating element constituted by a longitudinal radiation slot etched onto a substrate. This structure comprises at least one modification element of the radiation pattern positioned in the radiation zone of the radiating element.
    Type: Application
    Filed: January 8, 2009
    Publication date: October 22, 2009
    Inventors: Julian Thevenard, Dominique Lo Hine Tong, Ali Louzir, Corinne Nicolas, Jean-Philippe Coupez, Christian Person
  • Compact Portable Antenna for Digital Terrestrial Television with Frequency Rejection
    Publication number: 20090231222
    Abstract: The invention relates to a portable compact antenna formed from a first dipole type radiating element operating in a first frequency band and comprising a first and at least one second conductive arm, differentially supplied, the first arm, referred to as cold arm, forming at least one cover for an electronic card and the second arm, referred to as hot arm, being linked to the cold arm at the level of the supply. According to the invention, the hot arm comprises at least one slot resonating in a second frequency band such as the GSM band.
    Type: Application
    Filed: May 4, 2007
    Publication date: September 17, 2009
    Applicant: THOMSON LICENSING
    Inventors: Philippe Minard, Jean-Francois Pintos, Ali Louzir
  • Radiating slot planar antennas
    Patent number: 7589688
    Abstract: The present invention relates to a compact planar antenna containing, on a substrate featuring at least one ground plane, a radiating slot forming at least one folded strand with parallel strand parts. The antenna contains at least one means of phase inversion between two successive strand parts, the means of phase inversion being positioned on the strand in such a manner that the field components of the parallel strand parts are added together. The use of phase inversion means makes it possible to reduce the dimensions of the antenna, facilitating its integration on a card.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: September 15, 2009
    Assignee: Thomson Licensing
    Inventors: Jean-François Pintos, Philippe Minard, Ali Louzir
  • System for interconnecting two substrates each comprising at least one transmission line
    Publication number: 20090213562
    Abstract: The present invention relates to an interconnection system of a first substrate (1) comprising at least one first transmission line (3) with a second substrate (10) comprising at least one second transmission line (11), the orientation of the first substrate with respect to the second substrate being arbitrary. The first substrate (1) comprises at least one metallized hole at one extremity of said first line and the second substrate (10) comprises a projecting element extending said second line and a ground saving, said projecting element being inserted into the metallized hole. The invention notably applies in the domain of microwaves and can interconnect a substrate comprising a printed antenna with a substrate receiving the processing circuits of the signal.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 27, 2009
    Inventors: Julian Thevenard, Dominique LO Hine Tong, Ali Louzir, Corinne Nicolas, Christian Person, Jean-Philippe Coupez
  • Dual-Band Antenna Front-End System
    Publication number: 20090153425
    Abstract: 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.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 18, 2009
    Inventors: Jean-Yves Le Naour, Ali Louzir, Philippe Minard, Jean-Luc Robert, Francoise Le Bolzer
  • Compact Multiband Antenna
    Publication number: 20090135075
    Abstract: The present invention relates to a compact multiband antenna constituted by a first dipole type element comprising a first conductive arm connected to a second conductive arm having the shape of a box, mounted on a ground plane, the first and the second arms being supplied differentially and a second element of the slot type realized on said ground plane in the extension of said second arm.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 28, 2009
    Inventors: Philippe Minard, Jean-Francois Pintos, Ali Louzir, Philippe Gilberton
  • Wideband phase shift device
    Patent number: 7536160
    Abstract: The invention relates to a wideband phase shift device. A phase shift ? is introduced on the fixed frequency local oscillator. The principle of the invention is to realise a double translation of the input signals. The phase variation introduced at the level of the local oscillator has a positive value on one of the translated signals and a negative value on the other. The signals are recombined at the reception frequency with a phase difference of 2 ? so as to maximise the amplitude of the signal at the output of the summator.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 19, 2009
    Assignee: Thomson Licensing
    Inventors: Jean-Yves Le Naour, Jean-Luc Robert, Ali Louzir
  • Source antennas with radiating aperture
    Patent number: 7528787
    Abstract: The invention relates to a source antenna constituted by a radiating aperture comprising at least one insert made of a dielectric material mounted floating inside the aperture.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: May 5, 2009
    Assignee: Thomson Licensing
    Inventors: Ali Louzir, Jean-Francois Pintos, Philippe Chambelin, Florent Averty, Dominique Lo Hine Tong, Corinne Nicolas, Christian Person, Jean-Philippe Coupez, Gabrielle Landrac
  • Monopole antenna
    Publication number: 20090102736
    Abstract: 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 ?g?L?½ ?g, ?g being the wavelength in a strand at a central radiation frequency F0.
    Type: Application
    Filed: May 24, 2006
    Publication date: April 23, 2009
    Inventors: Philippe Minard, Ali Louzir, Jean-Francois Pintos, Jean-Luc Robert
  • Active Photonic Forbidden Band Antennae
    Publication number: 20090096695
    Abstract: The present invention relates to an active photonic band gap antenna. In this case, the photonic band gap structure is constituted by metal rods, some of which are discontinuous, namely composed of sections of rods connected by a switching element such as a PIN diode. According to the invention, only one rod in a row of rods seen from the radiating source is discontinuous. The antenna pattern can be controlled at a low cost.
    Type: Application
    Filed: November 24, 2005
    Publication date: April 16, 2009
    Inventors: Nicolas Boisbouvier, Ali Louzir, Francoise Le Bolzer, Anne-Claude Tarot, Kouroch Mahdjoubi
  • Compact Portable Antenna for Terrestrial Digital Television
    Publication number: 20090096697
    Abstract: The present invention relates to a portable compact antenna formed from a first dipole type element operating in a first frequency band and comprising a first and at least one second conductive arm, differentially supplied, the first arm or cold arm forming at least one cover for an electronic card and the second arm or hot arm being constituted by a U-shaped conductive element realized on an insulating substrate. Further, a radiating element with bends is realized between the branches of the U-shaped element and is dimensioned to operate in a second frequency band.
    Type: Application
    Filed: May 4, 2007
    Publication date: April 16, 2009
    Inventors: Jean-Francois Pintos, Philippe Minard, Ali Louzir