Slim
Slim Ben Ghalba, Kanata CA
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20150244440 | SCALABLE ESTIMATION RING - Systems and methods are disclosed for estimating impulse responses of multiple channels, e.g., multiple antenna sub-array paths of a base station, in a distributed manner. In one embodiment, a method of operation of a Scalable Estimation Ring (SER) processing component in a SER that operates to estimate impulse responses of corresponding channels is provided. In one embodiment, the method includes, during a first iteration of the SER, receiving a feedback signal for the SER processing component and computing an initial estimate of an impulse response of a corresponding channel based on the feedback signal, removing a contribution of the corresponding channel from the feedback signal based on the initial estimate of the impulse response of the corresponding channel to thereby provide a feedback signal for a next SER processing component in the SER, and outputting the feedback signal for the next SER processing component in the SER. | 08-27-2015 |
Slim Ben Ghalba, Ottawa CA
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20120281772 | DIGITAL OUTPUT POWER MEASUREMENT IN RADIO COMMUNICATION SYSTEMS - Devices and methods related to devices capable to perform digital output power measurement besides attenuation control are provided. A device includes a digital signal processing unit, a transmitter and a feedback receiver. The digital signal processing unit is configured to control attenuation along a transmission path and a feedback path based on a comparison of a power of a digital input signal with a raw power of a corresponding digital feedback signal, and to calculate an output power value of an analog RF signal to be broadcasted, using the raw power of the digital feedback signal and one or more feedback gain factors related to gain in the feedback receiver. | 11-08-2012 |
20130012149 | Adaptive Real-time Control System for Transceiver Level and Gain Regulation - Adaptive gain regulation is performed by measuring one or more real-time closed-loop statistics for a signal output from a gain-controllable circuit and blindly adjusting the gain of the gain-controllable circuit based on the one or more real-time closed-loop statistics measured for the signal so that the signal output by the gain-controllable circuit satisfies a predetermined criteria without using a priori information about the signal. | 01-10-2013 |
Slim Ben Halima, Issy Les Moulineaux FR
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20140348256 | METHOD OF GROUPING TRANSMITTER-RECEIVER PAIRS FOR COMMUNICATING OVER A COMMUNICATIONS NETWORK - Disclosed is a method of grouping transmitter-receiver pairs for communicating over a communications network. For each group of a set of groups of transmitter-receiver pairs, the pairs of the group execute an iterative interference alignment technique for I1 iterations on signals transmitted by the group. Each transmitter of the group successively sends a pilot signal that has been precoded by a matrix resulting from that execution. Each receiver of the group evaluates a metric representative of a distance between a vector subspace generated by the pilot signal transmitted by the transmitter with which it forms a pair and a vector subspace generated by interferences determined from the pilot signals transmitted by the other transmitters. A central unit calculates a global metric associated for each group on the basis of the metrics from the receivers of the group and selects from the set a group that optimizes the global metric. | 11-27-2014 |
Slim Bensalah, Moissy-Cramayel Cedex FR
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20150369058 | TURBOMACHINE ROTOR BLADE - A turbomachine rotor blade, said blade having, at the distal end thereof, a heel comprising: a platform ( | 12-24-2015 |
Slim Bensalah, Paris FR
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20150023793 | TURBOMACHINE ROTOR BLADE - A turbomachine rotor blade presenting an outer part ( | 01-22-2015 |
Slim Boumaiza, Waterloo CA
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20140035681 | MULTI-FREQUENCY MULTI-STANDARD RECONFIGURABLE DOHERTY AMPLIFIER - A method and system for designing and implementing a reconfigurable Doherty amplifier system are disclosed. In one embodiment, a design method includes determining, using a processor, a first set of ABCD transmission parameters of a first output compensation network in a main path of a Doherty amplifier for the case where an auxiliary amplifier of the Doherty amplifier is off. The method further includes determining, using a processor, a second set of ABCD transmission parameters of a second output compensation network in an auxiliary path of the Doherty amplifier based on the first set of ABCD transmission parameters. | 02-06-2014 |
20140347125 | EFFICIENT POWER AMPLIFICATION OVER LARGE OPERATING AVERAGE POWER RANGE - Embodiments of a Doherty power amplifier that maintain efficiency over a large operating average power range are disclosed. In one embodiment, the Doherty power amplifier includes reconfigurable main and auxiliary output matching networks and a fixed combining network. The reconfigurable main and auxiliary output matching networks can be reconfigured such that together the reconfigurable main output matching network, the reconfigurable auxiliary output matching network, and the fixed combining network provide proper load modulation for multiple different back-off power levels. As a result, the Doherty power amplifier maintains high efficiency over an extended back-off power level range. | 11-27-2014 |
20140362950 | CREST FACTOR REDUCTION OF INTER-BAND CARRIER AGGREGATED SIGNALS - A method, system and circuit for crest factor reduction of inter-band multi-standard carrier aggregated signals are disclosed. In one embodiment, a method includes calculating the amplitude of each of the plurality of carrier signals of the inter-band carrier aggregated signals. An estimate of an envelope of a combination of the carrier signals is produced based on a sum of the calculated amplitudes of the plurality of carrier signals. The estimate of the envelope of the combination of the carrier signals is compared to a clipping threshold to determine whether to clip each of the plurality of carrier signals. | 12-11-2014 |
20140362951 | CREST FACTOR REDUCTION OF CARRIER AGGREGATED SIGNALS - The present disclosure advantageously provides methods and systems for crest factor reduction of multi-standard carrier aggregated signals. In one embodiment, a method of providing crest factor reduction for a carrier aggregated signal is provided. In one embodiment, the method comprises estimating a peak of a carrier aggregated signal based on a summation of instantaneous amplitudes of baseband representations of a number of component carriers of the carrier aggregated signal. The number of component carriers of the carrier aggregated signal is greater than or equal to 2. The method further comprises clipping the baseband representations of the component carriers if the estimated peak of the carrier aggregated signal is greater than a predefined clipping threshold. | 12-11-2014 |
20150194989 | DIGITAL PREDISTORTION OF WIDEBAND POWER AMPLIFIERS WITH REDUCED OBSERVATION BANDWIDTH - A method and power amplification system for achieving digital pre-distortion of wideband, power amplifiers with reduced observation bandwidth are disclosed. A digital pre-distorter system uses a reduced transmitter observation receiver bandwidth combined with a high transmit path sampling rate to linearize a power amplifier across a broad spectrum that may extend to beyond about five times a bandwidth of a signal input to the system. | 07-09-2015 |
Slim Chourou, Davis, CA US
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20100010934 | UNIVERSAL ADVERTISING DIRECTORY - This invention relates generally to software, and more specifically, to systems and methods to establish a directory of any kind of offer, whether commercial or non-commercial. The invention enables any person to create a forum for any kind of offer without the intervention or action of the operator of the directory, permitting the directory to be extended to offer types not even understood by the operators of the directory. The invention further enables persons making offers of every type to advertise their offers in such directory, and to rapidly update their offers as market conditions change. The invention further enables consumers to review offers in such directories, and compare offers based on price, years of experience, and other quantified metrics. The invention further enables consumers to invite those making a particular type of offer to bid on a specific job, and for such bids to be organized in charts, maps, and lists from which the consumer can compare the prices and qualifications of those bidding. The invention further enables a reward system providing incentives to people who induce those making offers to list their offers on such directory. | 01-14-2010 |
Slim Hbaeib, Rio De Janeiro BR
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20140262536 | DOWNHOLE CUTTING TOOLS HAVING HYBRID CUTTING STRUCTURES - A drill bit is disclosed, wherein the drill bit has a bit body with a longitudinal axis extending there through and a bit face. A plurality of blades extends from the bit body, wherein the plurality of blades has a blade profile including a nose. A plurality of cutting elements are disposed on the plurality of blades, including a plurality of non-planar cutting elements and a plurality of rotatable cutting elements, wherein the plurality of non-planar cutting elements are disposed in a non-planar cutting element region on at least one of the blades between the longitudinal axis and the nose | 09-18-2014 |
Slim Hbaieb, Paris FR
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20100314173 | METHODS OF DRILLING WITH A DOWNHOLE DRILLING MACHINE - A drilling system and method are provided. The drilling system comprising a tool body, a drill bit, a mechanism for applying weight to the drill bit (“WOB”), and a control system for controlling the rate of rotation of the drill bit (“RPM”) and the weight applied to the bit during drilling. The control system is configurable to a first mode in which RPM and WOB are controlled to maintain power on the drill bit at a predetermined maximum, and a second mode in which RPM and WOB are controlled to maintain a predetermined depth of cut (“DOC”). In use, the control system is adapted to switch between the first and second modes depending on drilling conditions. | 12-16-2010 |
Slim Hbaieb, Rio De Janeiro BR
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20100307738 | WELL CLEANING APPARATUS - An apparatus for removing debris from a well is provided. The apparatus comprises a tool body having a head, a chamber, a connector, a conduit, and a filter. The head has an opening and comprises protrusions extending from the outer surface for moving debris. The chamber is in the tool body to store debris. The connector is for attaching the tool body to a drilling system. The conduit is connected to the opening in the head to convey debris and fluid from the well to the chamber. The filter is in the tool body to limit the size of the particles that can pass into the drilling system from the chamber. In use, fluid flow and the protrusions move the debris from the well and through the apparatus. | 12-09-2010 |
Slim Tarkhani, Seilh FR
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20080210488 | Belayer/Descender Safety Device - The invention relates to a belayer/descender safety device ( | 09-04-2008 |