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Interdigital Madison Patent Holdings

Ali Louzir

Philippe Minard

Jean-François Pintos

Dominique Lo Hine Tong

Jean-Luc Robert

Franck Thudor

Françoise Le Bolzer

Jean-Yves Le Naour

Jean-Philippe Coupez

Christian Person

Philippe Chambelin

Corinne Nicolas

Philippe Gilberton

Patrice Hirtzlin

Nicolas Boisbouvier

Jean-Fran&ccedil;ois Pintos

Fran&ccedil;oise Le Bolzer

Anne-Claude Tarot

Kouroch Mahdjoubi

Julian Thevenard

Henri Fourdeux

Florent Averty

Guillaume Bichot

Bernard Denis

François Baron

Masahiro Fujimoto

Raafat Lababidi

David Harrison

Christopher Howson

Olivier Mocquard

Anthony Pesin

Luis Montalvo

Philippe Berthaud

Mathilde Bellec

Jacques Perraudeau

Julien Lintignat

Bruno Barelaud

Bernard Jarry

Loïc Marnat

Maxime Ruee

Rupesh Kumar

Jean-Marc Laheurte

Prakash Sampath Gattupalli

Gabrielle Landrac

Pascal Nadeau

Stephane Protat

Fran&ccedil;ois Baron

Christian Yves Allaire

Luc Pagnier

Chetan Joshi

Gerard Haquet

Abdullah Haskou

Denis Bernard

Yves Le Naour

Dominique Lo Hiine Tong

In situations where a receiver, rendering a content, switches from a first transport stream carrying that content to a second transport stream carrying that same content, artefacts may occur on the rendered content while transitioning between both transport streams. Considering transport stream data of a transport stream signal may be available at a nominal frequency higher than a frequency corresponding to the transport stream bitrate, there may be some periods of time during which no data is present in the transport stream signal. A salient idea is to switch from the first transport stream signal to the second transport stream signal in such periods during which there is no transport stream valid data in the first transport stream signal, allowing to minimize the risks of perceptible defects in the rendered content throughout the switching.

Method and apparatus for switching from a first to a second transport stream of same content

The invention relates to a wide-band omnidirectional antenna including at least a first conducting member and a second conducting member having a revolution symmetry about a common revolution axis and central openings, said members being arranged opposite each other, at least one member having a progressively flaring area, characterised in that it comprises a gap between the conducting members and a central coaxial excitation line so as to achieve a three-dimensional contactless transition between the coaxial excitation line and the conducting members and members for modifying the radiation pattern in the flaring area of the diode type for selectively radiating the gap depending on the on- or off-state of said diodes.

Omnidirectional volumetric antenna

Apparatus () and method () for passive remote control are provided. The apparatus () includes at least two radio-frequency identification (RFID) tag devices (___N,__) each operable to transmit a signal when activated and a first switch coupled to the at least two RFID tag devices (___K,_) and operable to activate the at least two RFID tag devices when the first switch is in a first switch state, said first switch being a first key identified by RFID tag information of the at least two RFID tag devices. Apparatus () and method () for receiving RFID signals are also provided.

Method and apparatus for passive remote control

A radio frequency identification (RFID) reader identifies in which room among several rooms the RFID reader is more likely to be located. The RFID reader includes a transmitter for transmitting an interrogating radio frequency (RF) signal. It includes a receiver for receiving RF signals generated in corresponding pairs of RFID tags. The RFID tag pairs are attached to corresponding regions of each of the rooms. Each of said RFID tag pair including a first RFID tag and a second RFID tag that are spaced from each other by a distance that is larger or equal to &#x3bb;/4 and smaller than or equal to &#x3bb;/2 with respect to a frequency of a responding RF signal originated in the pair of RFID tags. A processor selects a larger RSSI of the RSSI's of the signal pair. The processor determines a corresponding sum of the RSSI's selected from each signal pair associated with each room. The processor evaluates in accordance with determined sums, the location in which said RFID reader is more likely to be located.

System for identifying a location of a mobile tag reader

An electronic apparatus includes a communication unit that communicates with a tag located within a target region when the communication unit is active within the target region, and a processor configured to monitor an activity within the target region based on status information from the tag received by the communication unit, wherein the activity comprises at least one of opening and closing of a member arranged within the target region.

Apparatus and method for activity monitoring

The invention relates to a device comprising at least a first RFID module and a second RFID module, each comprising a chip coupled to a wire loop antenna. The first and second RFID modules operate at a first operating frequency into a first frequency band and at a second operating frequency into a second frequency band respectively, the second operating frequency being substantially equal to a multiple k of the first operating frequency, with k&#x2265;2. The device further comprises a resonant half-wave dipole having a length (L) that is substantially equal to &#x3bb;/2 where &#x3bb; is a wavelength associated to the first frequency band. The first module is present in the vicinity of the center of the half-wave dipole and the second module is present at a distance substantially equal to (2*n+1)&#x3bb;/4*k from an end of the half-wave dipole, with n&#x2208;[0 . . . k&#x2212;1].

Multi-band RFID device

An electrical activity monitoring device based on an RFID sensor device attachable to a power cable of an electrical device for monitoring the electrical status of the electrical device. The device comprises an antenna element which performs the dual functions of magnetically coupling with an electrical pulse generated in the power cable in response to a change of electrical power state of the electrical device and to wirelessly transmit data to an RFID reader. An electrical activity monitoring apparatus is also provided for monitoring the electrical status of at least one electrical device connected to a power supply network by a respective power cable provided with an RFID sensor device. The electrical activity monitoring apparatus comprises an RFID reader for communicating with the RFID sensor device.

Electrical activity sensor device for detecting electrical activity and electrical activity monitoring apparatus

The present invention relates to an antenna able to cover two opposite angular sectors comprising: According to the invention, said first and second excited elements () and said at least two reflector elements () are aligned, said reflector elements being disposed between said first and second excited elements. At least two reflector elements from among said at least two reflector elements () are connected together electrically by a first transmission line () of predetermined length so that the reflector elements connected together participate jointly in reflecting the beams in the two opposite directions.

Multi-sector directive antenna

The invention relates to electrical activity sensor attachable to a power cable of an electrical device for detecting an impulse generated in the power cable in response to a change in electrical power state of the electrical device. The electrical activity sensor includes an antenna assembly having an antenna element operable to magnetically couple with an electrical pulse generated in the power cable to induce an electrical signal in response to a change in electrical power state of the electrical device. The antenna element is shaped in a plurality of loops.

An electrical activity sensor attachable to a power cable of an electrical device for detecting an impulse generated in the power cable in response to a change in electrical power state of the electrical device, the electrical activity sensor comprising an antenna assembly comprising an antenna element operable to magnetically couple with an electrical pulse generated in the power cable to induce an electrical signal in response to a change in electrical power state of the electrical device; and at least one dipole type antenna configured operate as a half wave dipole in the operating frequency range of the antenna element and to magnetically couple to the antenna element wherein the dipole type conductor is operable to wirelessly transmit data representative of the power state change of the electrical device to a remote reader.

An electrical activity monitoring device based on a sensor device attachable to a power cable of an electrical device for monitoring the electrical status of the electrical device. The device comprises an antenna element which performs the dual functions of magnetically coupling with an electrical pulse generated in the power cable in response to a change of electrical power state of the electrical device and to transmit data to a reader via the power cable. An electrical activity monitoring apparatus is also provided for monitoring the electrical status of at least one electrical device connected to a power supply network by a respective power cable provided with a sensor device. The electrical activity monitoring apparatus comprises a reader and a reader-power line interface device.

The present invention relates to a filtering circuit comprising at least two slot line resonators arranged side by side and realized on a dielectric substrate having a first face equipped with a conductive layer and a second parallel face, each of said at least two resonators comprising a slot line etched in the conductive layer and folded according to a spiral pattern counting a plurality of turns, with a shape factor such that the slot line has parts noticeably parallel or concentric. According to embodiments of the invention, at least one turn of the spiral pattern of each of the resonators comprises at least one discontinuity, the discontinuities of said at least two slot line resonators being arranged in such a manner as to increase the electromagnetic coupling between said at least two slot line resonators.

Filtering circuit with slot line resonators

The invention relates to a device for receiving signals in a MIMO system comprising:

Device for receiving or emitting/receiving MIMO signals

The invention relates to a wireless communication terminal able to transmit and/or receive video, audio or data signals in a first and a second frequency band comprising a first MIMO circuit of N paths (N&#x2267;1) operating in the first frequency band and a second MIMO circuit of M paths (M&#x2267;1) operating in the second frequency band, the first and second MIMO circuits each being coupled to front-end modules comprising respectively N and M power amplifiers, the front-end modules being connected to an antenna system.

Method for reducing the energy consumption in a wireless communication terminal and communication terminal implementing said method

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.

Apparatus and method for detecting microwave radiation

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Rennes, France

Ali Louzir