Thomson Licensing

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Thomson Licensing S.a.

Thomas Licensing

Université Brest Bretagne Occidentale

Commissariat À L'énergie Atomique Et Aux Énergies Alternatives

Thomson Licensing Dtv

Interdigital Madison Patent Holdings

Jean-François Pintos

Ali Louzir

Philippe Minard

Jean-Luc Robert

Philippe Chambelin

Franck Thudor

Dominique Lo Hine Tong

Christophe Delaveaud

Philippe Gilberton

Corinne Nicolas

Olivier Mocquard

Jean-Yves Le Naour

Mohammed Benwadih

Jean-Philippe Coupez

Dominique Vicard

Patrice Hirtzlin

Laurent Dussopt

Cyril Jouanlanne

Lotfi Batel

Florent Averty

Christian Person

Lionel Rudant

Nicolas Boisbouvier

Gianfranco Andia Vera

Ossama El Bouayadi

Jean-Luc Le Bras

Loïc Marnat

Nebil Kristou

Gabrielle Landrac

Jean-Luc Mattei

Alexis Chevalier

Vincent Laur

Dominique Lo Hiine Tong

Sheet comprising a flexible support and a coating at least partially covering at least one face of the support, the support being made of a support material exhibiting dielectric properties, the coating being made of a coating material different from the support material and exhibiting magneto-dielectric properties or dielectric properties.

Sheet exhibiting dielectric or magneto-dielectric properties

A monopole wire-plate antenna that is reconfigurable in a frequency range of operation, comprising:

Frequency reconfigurable monopolar wire-plate antenna

A wire-plate antenna () comprises a ground plane (), at least one capacitive roof (), a feed probe () connected to the capacitive roof () and intended to be linked to a generator, and at least one electrically conductive short-circuit wire () linking the capacitive roof () and the ground plane (). The capacitive roof () comprises at least one slit () consisting of an opening passing through the entire thickness of the capacitive roof () so as to emerge on each of the two opposing faces of the capacitive roof () and configured such that the point of connection (M) between the capacitive roof () and the feed probe () and the point of connection (M) between the capacitive roof () and the electrically conductive short-circuit wire () are arranged on either side of the slit ().

Wire-plate antenna having a capacitive roof incorporating a slot between the feed probe and the short-circuit wire

A negative impedance circuit including: a first and a second bipolar transistors having a common collector, a base of the first transistor being connected to an emitter of the second transistor; a third and a fourth bipolar transistors having a common collector, a base of the third transistor being connected with an emitter of the fourth transistor; and at least one first impedance formed of one or of a plurality of passive components coupling the common collector of the first and second transistors to the common collector of the third and fourth transistors, a base of the second transistor being coupled to the collector of the third and fourth transistors and a base of the fourth transistor being coupled to the collector of the first and second transistors.

Negative impedance circuit

In the field of telecommunications antennas suitable for portable communication casings, a monopole radio antenna is provided, including an etched conducting surface, including a ground plane, a structure of conducting lines, and a signal injection point in the structure of conducting lines. The structure of conducting lines comprises a first meander conducting line having multiple strands elongated in a first direction, a second meander conducting line symmetrical to the first conducting line in relation to a median line passing in the plane via the injection point and perpendicular to a general direction of elongation of the strands, the two lines starting from the injection point, and a common surface connected to the ends of the conducting lines distant from the injection point. The antenna is less sensitive to radiation efficiency reductions due to the presence of a plastic hood enclosing the antenna.

Integrated meander radio antenna

In the field of electronic apparatuses that can be held in the hand and that comprise a miniaturized radio antenna, an apparatus comprises a casing of generally parallelepipidal form with a main face and a first small side. The antenna extends partly along the main face and partly over the first side. It comprises a conductive structure divided up so as to form a meandering inductive conductive line linked to a main conductive surface which extends over most of the first side and which is folded at the ends of this first side onto a second and a third side adjacent to the main face to form two folded lateral wings, at least one respective slot being provided to separate each wing from the main conductive surface and thus narrow and lengthen the paths of the electric currents going to the folded lateral wings.

Electronic apparatus with radio antenna folded in a casing

A multibeam antenna system having a substrate forming a ground plane and a lens positioned on the substrate. At least one radiating element is positioned around the lens and configured to transmit and/or receive electromagnetic wave. A switching means enables one of the at least one radiating element to be selected. The lens is constituted by a cylindrical ring whose axis is perpendicular to the substrate.

Multibeam antenna system

The present invention relates to a method for producing an antenna operating in a given frequency band, from a dual-band antenna. According to the method, the dual-band antenna is a broadband slot antenna that receives and/or transmits electromagnetic signals at a first frequency and at a second higher frequency. The antenna is powered by a single power supply line, and the free end of the power supply line is connected, by a connection means that can be opened or closed, to at least one means for rejecting one of the frequencies. This invention can be used in producing generic electronic boards.

Method for producing an antenna, operating in a given frequency band, from a dual-band antenna

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.

System for Transmission of signals in a domestic environment

The present invention relates to a system of multi-beam antennas comprising a network of N radiating elements, N being an even whole number, the elements of the network being connected two by two via transmission lines. The system comprises in addition M radiating sources, M being a whole number greater than or equal to 1, the radiating source(s) each being positioned at a distance Li from the center of the network such that the distance Li is strictly less than the distance of fields called far fields and i varies from 1 to M. This system can be used notably in MIMO devices.

System of multi-beam antennas

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.

Method of integrating an identification circuit into a data medium

The present invention relates to a very compact antenna system with a diversity order of 2. An antenna system with a diversity order of 2 integrated on an electronic card comprising a first radiating element of F-inverted type with a first extremity connected to a ground plane, a second extremity free and a conductive power supply part, a second radiating element of F-inverted type with a first extremity connected to a ground plane, a second extremity free and a conductive power supply part, characterized in that the free extremities of the first and second radiating elements are opposite one another and are separated by a projecting element of the ground plane. Application in electronic cards for multi-standard communication devices.

Compact antenna system with a diversity order of 2

The present invention relates to an antenna system comprising on a substrate, at least a first and a second printed radiating elements, each supplied by a feed line, with, between the two radiating elements, at least one transmission line comprising a first extremity and a second extremity. The first and the second extremities of the transmission line are respectively coupled to the first and the second radiating elements according to a coupling function with a ratio 1:b, b&#x3e;1 and a phase &#x3c6;, linked to the physical difference between the radiating elements, the length of the transmission line bringing a phase difference &#x3b8; such that &#x3b8; compensates for &#x3c6;. The invention applies to antennas compatible with WIFI.

Compact antenna system

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.

System of diversity dipole antennas

The invention relates to a dipole type wideband antenna comprising a substrate presenting two faces, a first conductive arm, a second conductive arm placed on the substrate, a feeder line supplying the second arm passing under the first arm, In this case, the feeder line extending by a line element placed under the second arm, this element being dimensioned to filter a given frequency.

Growing community of inventors

Bourgbarre, France

Jean-François Pintos