Thomson Licensing

Thomson Licensing S.a.

Thomson Licensing Dtv

Philippe Chambelin

Ali Louzir

Jean-François Pintos

Philippe Minard

Dominique Lo Hine Tong

Jean-Yves Le Naour

Jean-Philippe Coupez

Christian Person

Patrick Fontaine

Corinne Nicolas

Francois Baron

Florent Averty

Renaud Dore

Jean-Luc Robert

Ludovic Jeanne

Patrice Hirtzlin

Charline Guguen

François Baron

Jean-Fran&ccedil;ois Pintos

Henri Fourdeux

Gabrielle Landrac

A configuration method of a first access point of a network is disclosed, which comprises a configuration of the first access point as belonging to a low power set and able to transmit at a power level lower than a first value on at least one low power channel; a transmission of an indication that the first access point belongs to the low power set and a selection of a low power channel for transmission among at least one low power channel on which the reception power of a signal transmitted by the neighboring access points is less than a second power level.

Method for configuration of a wireless network

Method for managing the power consumption in a WLAN wireless communication network, comprising an access point device for access to the wireless network and a remote station connected to the access point device. The access point transmitting control and information frames to the remote station, the method comprising the steps of insertion of at least one item of information, into at least one of the control and information frames, relating to a future period of inactivity of the access point, of deactivation of the WLAN access point and of reactivation of the WLAN access point at the end of the period of inactivity.

Low power consumption mode for WLAN access point

The invention relates to an RF reception front end block comprising a first substrate and an RF integrated front end module integrated onto a second substrate supporting a radiating part of the antenna. The antenna is in addition formed by:

Frontal block with intergrated antenna

In order to increase the transmission speed in a wireless network comprising at least a node, the method comprises the following steps:

Contention for wireless access using two types of channels

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 &#x3bb;/2 modulo k &#x3bb;, k positive integer, where &#x3bb; is the wavelength corresponding to a working frequency fr.

System of two antennas on a support

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 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.

Wideband antennas

The invention consists of an antenna array, for the reception of two frequency bands, comprising two pairs of radiating elements and an network for excitation of these elements for the reception of one of the bands. The radiating elements are positioned so as to free the center of the array to allow colocalized reception of the other band. The excitation network comprises hybrid elements so as to introduce a certain phase shift between the radiating elements allowing a dual circular polarization. This network must comply with two constraints: The phase shift introduced between the hybrids must be equal to the phase shift of the hybrid modulo 2integer. and the length of the line Lplaced between the first hybrid Hand the first patch PAis such that it introduces a phase shift equal to &#x3c0; modulo 2integer.

Antenna arrays with dual circular polarization

The invention proposes an upgradable product capable of covering two sub-bands. An outdoor unit comprises, on the uplink, a switchable oscillator coupled to a waveguide featuring a removable cover enabling the said waveguide to be converted into a band rejector filter.

Broad distribution bi-directional user terminal at configurable broadcast frequencies

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.

Source antennas with radiating aperture

The present invention relates to a method for producing an antenna comprising a conductive wire, formed by a wire, made of a conductive material, whose path has a helical shape. In accordance with the invention, such a method is characterized in that a print is formed in relief on one side of an element of an electrically insulating material such that the helical shape is generated by depositing the conductive material in this print.

Method of manufacturing an antenna

The invention relates to a microwave filter comprising a coaxial structure, consisting of a tubular outer conductor and an inner bar conductor. According to the invention, the inner bar conductor extends in an axial direction inside the outer tube and, together with said tube, forms a series of concentric slots in the axial direction thereby defining successive coaxial line segments with low characteristic impedance and coaxial line segments with high characteristic impedance. The aforementioned concentric slots are produced in a synthetic foam block.

Microwave filter comprising a coaxial structure with a metallized foam having a periodic profile

The invention relates to RF bandpass filters with pseudo-elliptic response. In a filter comprising a dielectric substrate placed in E position in a rectangular waveguide and comprising inserts on one of the surfaces of the substrate are placed conductors linked electrically to the walls of the guide, and on the other surface of the substrate opposite these conducting inserts are placed electrically floating inserts that make it possible to determine zeros in the transmission curve of the filter. This yields a filter exhibiting a response curve of pseudo-elliptic type which improves the rejection of spurious frequencies without increasing the dimensions of the filter.

Waveguide E-plane RF bandpass filter with pseudo-elliptic response

The invention proposes an optimized solution of a frequency/polarization splifter that requires no adjustment after production and can be produced entirely by moulding. The polarized-wave splitter comprises various components, including a polarization splittercoupled to two filtersandvia transition regionsand. The overall dimensions of the various components are such that the transfer characteristics of the splitter are better than the characteristics resulting from the sum of the characteristics of the components constituting the splitter.

Waveguide frequency-band/polarization splitter

The module comprises an input/output access point at a first end of a waveguide with a square cross section, called a square waveguide, two access points made of waveguides with a rectangular cross section, called rectangular waveguides, placed side by side at a second end of the square waveguide and a septum positioned in the square waveguide at the end of a separation region common to the two rectangular waveguides in order to allow the production of two circular polarizations of opposite handedness each associated with a rectangular waveguide. The module is arranged so as to form a diplexer in which the septum is included and where the access points by rectangular waveguide are extended by filters, each access point being endowed with a filter provided in order to transmit a frequency band which is different. The steps of the septum are dimensioned so as to compensate for reflections.

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Chateaugiron, France

Philippe Chambelin