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SHEYNMAN Arnold, WARDEN James, ALI Shirook M: ÉTALONNAGE DYNAMIQUE EN TEMPS RÉEL POUR UNE ADAPTATION DANTENNE DANS UN SYSTÈME RÉCEPTEUR RADIOFRÉQUENCE, DYNAMIC REAL-TIME CALIBRATION FOR ANTENNA MATCHING IN A RADIO FREQUENCY RECEIVER SYSTEM. Research In Motion, SHEYNMAN Arnold, WARDEN James, ALI Shirook M, HAMILTON Gary W, May 24, 2012: WO/2012/067622 (45 worldwide citation)

This disclosure relates to real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver system. The radio frequency receiver system includes two non-linear equations that may be solved to determine the reflection coefficient of th ...


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ALI SHIROOK M, WARDEN JAMES PAUL, WILSON KELCE STEVEN: Antenna assembly with electrically extended ground plane arrangement and associated method, Antennenvorrichtung mit elektrisch erweiterter Grundplattenanordnung und zugehöriges Verfahren, Ensemble dantenne avec agencement de plan de base étendu électriquement et procédé associé. Research In Motion, October 26, 2011: EP2381527-A1 (9 worldwide citation)

Antenna assembly (200A-200H) having an electrically or virtually extended ground plane, adapted for use in a mobile communications device (400), for example. The antenna assembly (200A-200H) comprises at least one radiation element (204) having an operating frequency and a ground plane (202) coupled ...


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ALI SHIROOK M, LABRADOR CHRISTOPHER, WARDEN JAMES PAUL: Détection de profil détui par lintermédiaire dune technologie de capteur de proximité de champ électrique, Halfterprofilerkennung über Sensortechnologie für elektrische Feldnähe, Holster profile detection via electric-field proximity sensor technology. Research In Motion, January 16, 2013: EP2546722-A2 (5 worldwide citation)

A mobile electronic device (110) is used with a case (100) and contains a processor, at least one electric-field proximity detector (112, 114) adapted to detect a non-magnetic proximity activator (102) in the case and a component configured to effect setting a state indicator in a device profile in ...


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WILSON KELCE STEVEN, WOMACK JAMES EARL, ALI SHIROOK M, PERIYALWAR SHALINI SURESH: SYSTEME DE COMMANDE DU NIVEAU DE PUISSANCE DE RAYONNEMENT POUR UN DISPOSITIF DE COMMUNICATIONS SANS FIL BASE SUR LE DOSSIER HISTORIQUE DU SUIVI DE LEXPOSITION AUX RAYONNEMENTS, RADIATION POWER LEVEL CONTROL SYSTEM AND METHOD FOR A WIRELESS COMMUNICATION DEVICE BASED ON A TRACKED RADIATION HISTORY. Research In Motion, BLACKBERRY, RIDOUT & MAYBEE, February 17, 2015: CA2746881 (4 worldwide citation)

A radiation power level control scheme (200) for a wireless user equipment (UE) device (700). In one embodiment, a power data history (300) associated with the wireless UE device (700) is maintained, the power data history (300) comprising data tracked over a time window (e.g., a sliding time window ...


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WOMAC JAMES, ALI SHIROOK M, KANJ HOUSSAM, MOBASHER AMIN: [fr] Contrôle de transmission pour dispositif de communication conforme à un taux dabsorption spécifique, [de] Übertragungssteuerung für eine Kommunikationsvorrichtung mit spezifischer Absorptionsrate, [en] Transmission control for a specific absorption rate compliant communication device. ALI SHIROOK M, WOMACK JAMES, KANJ HOUSSAM, MOBASHER AMIN, March 9, 2011: EP2293457-A2 (1 worldwide citation)

[en] Transmission of data from a portable communication device to a station via a radio frequency signal uses a protocol that has recurring frames, each having a plurality of transmission slots, different numbers of which can be used to transmit the data. When the portable communication device desir ...


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PECEN MARK , WARDEN JAMES P , ALI SHIROOK M H , DANAK AMIR : [fr] Procédés et appareil permettant de réaliser une adaptation dimpédance, [de] Verfahren und Vorrichtung zur Durchführung von Impedanzanpassung, [en] Methods and apparatus for performing impedance matching. BLACKBERRY  , August 20, 2014: EP2768147-A1 (1 worldwide citation)

[en] A system that incorporates teachings of the subject disclosure may include, for example, determining a first voltage standing wave ratio (VSWR), selecting a VSWR circle from among a group of VSWR circles based on the first VSWR, identifying a group of sets of tuning settings for variable reacta ...


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KANJ Houssam, ALI Shirook M: ANTENNE DE COMMUNICATION EN CHAMP PROCHE, NEAR FIELD COMMUNICATION ANTENNA. Research In Motion, KANJ Houssam, ALI Shirook M, MOFFAT & CO, December 27, 2012: WO/2012/174634 (1 worldwide citation)

Devices and methods are disclosed for providing an improved antenna for NFC mobile devices. Embodiments of the disclosure provide an antenna configuration that makes it possible to establish an NFC link when an NFC mobile device is oriented in ergonomic positions that are desirable for a user. In va ...


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ALI SHIROOK M, WARDEN JAMES PAUL, WILSON KELCE STEVEN: ENSEMBLE ANTENNE AVEC PLAN DE SOL ETENDU ELECTRIQUEMENT ET METHODE CONNEXE, ANTENNA ASSEMBLY WITH ELECTRICALLY EXTENDED GROUND PLANE ARRANGEMENT AND ASSOCIATED METHOD. Research In Motion, BLACKBERRY, RIDOUT & MAYBEE, July 29, 2014: CA2738169 (1 worldwide citation)

Antenna assembly having an electrically or virtually extended ground plane, adapted for use in a mobile communications device, for example. The antenna assembly comprises at least one radiation element having an operating frequency and a ground plane coupled to the radiation element. At least one co ...


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ALI Shirook M, WARDEN James P: PROCÉDÉ ET APPAREIL POUR COMMANDER UN COUPLAGE MUTUEL ET UNE CORRÉLATION POUR DES APPLICATIONS À MULTIPLES ANTENNES, METHOD AND APPARATUS TO CONTROL MUTUAL COUPLING AND CORRELATION FOR MULTI-ANTENNA APPLICATIONS. Research In Motion, ALI Shirook M, WARDEN James P, NOVAK DRUCE QUIGG, September 20, 2012: WO/2012/125176 (1 worldwide citation)

The present invention provides a method and apparatus to manipulate the mutual coupling and the correlation between the antennas (502, 504) on the handset (202) without the need to change the physical distance between them or to change their orientation. The manipulation in the mutual coupling and i ...