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Hamidreza

Hamidreza Bolandhemmat, Kitchener CA

Patent application numberDescriptionPublished
20090315760HYBRID TRACKING CONTROL SYSTEM AND METHOD FOR PHASED-ARRAY ANTENNAE - A hybrid control algorithm for low profile phased-array antennas, consisting of a gyro control and electronic beam-forming, operates to track the satellite. The antenna arrangements form a spatial phased-array capable of being rotated mechanically both in azimuth and elevation planes by the aid of step motors. An RF detector monitors the received RF power and provides a feedback signal to the control algorithm. Based on the monitored signals, provided by RF detector and gyros, the processing unit operates, under suitable algorithms, to home on and track the desired satellite. The arrangements can be mounted on a vehicle to provide TV and broadband internet signal to the user on the move.12-24-2009

Hamidreza Bozorgzadeh, Tehran IR

Patent application numberDescriptionPublished
20120083643Alumina Nanotube/Nanorod Supported Hydrodesulfurization Nanocatalyst, Method of Preparation and Application - The invention relates to a hydrodesulfurization nanocatalyst, use of the hydrodesulfurization nanocatalyst in a hydrodesulfurization process and a process for producing the hydrodesulfurization nanocatalyst. The hydrodesulfurization nanocatalyst can include a nanostructured alumina material, at least one metal selected from group VI B of the periodic table of elements, and at least one metal selected from group VIII B of the periodic table of elements.04-05-2012

Hamidreza Emamipour, Champaign, IL US

Patent application numberDescriptionPublished
20090293725STEADY STATE TRACKING DESORPTION SYSTEM AND METHOD - A preferred embodiment steady state tracking desorption system achieves steady tracking of either a fixed sorbate output set point, or a set point that changes over time. The system includes an electrically heated thermal adsorption/desorption device. A temperature sensor senses the temperature of an adsorbent material within the adsorption/desorption device. A sorbate sensor senses a sorbate level from an outlet of the adsorption/desorption device. A power sensor senses the power supplied by the desorption device. A controller interprets levels sensed by the temperature sensor, the sorbate sensor and the power sensor and provides a signal to achieve steady set point tracking of a sorbate level from the outlet of the adsorption/desorption device.12-03-2009

Hamidreza Farmanbar, Ottawa CA

Patent application numberDescriptionPublished
20120044849POWER ALLOCATION IN CLOSED-LOOP DOWNLINK COOPERATIVE MULTIPLE POINT (COMP) TRANSMISSION - Techniques for power allocation among a plurality of network nodes in a communication network for cooperative downlink transmission to a mobile terminal are provided. Cooperative transmission to a mobile terminal is done in a selected one of a plurality of frequency bands allocated for cooperative downlink transmission, wherein each network node has a respective predetermined frequency band transmission power level for each of the plurality of frequency bands allocated for cooperative downlink transmission. Selection of the frequency band on which the mobile terminal will be cooperatively transmitted to is based on channel state information indicative of the channel between the mobile terminal and each of the network nodes and, for each of the frequency bands, the respective plurality of predetermined frequency band transmission power levels corresponding to the plurality of network nodes.02-23-2012

Hamidreza Farmandar, Ottawa CA

Patent application numberDescriptionPublished
20110200029WIRELESS COMMUNICATION CLUSTERING METHOD AND SYSTEM FOR COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION - A method and system for identifying cell clusters within a coordinated multiple point wireless transmission network in order to reduce scheduling complexity while optimizing throughout and performance. The network includes a total number of cells served by corresponding base stations. The BSC divides the entire network of cells into clusters of cells and forwards this clustering information to all mobile devices. A cluster of cell candidates is a subset of the total number of cells within the network. The mobile device then provides to a base station controller the identity of a cluster of preferred cells selected from the cluster of cell candidates. The base station controller selects at least one base station located within the cluster of preferred cells to establish communication with the mobile device. A wireless connection is then established between the selected at least one base station and the mobile device.08-18-2011

Hamidreza Hoshyargar, Kassel DE

Patent application numberDescriptionPublished
20100186317BAR-TYPE SUPPORTING STRUCTURE FOR FORMING A FRAME, COMPRISING A PLURALITY OF NODES AND BARS CONNECTING THE NODES - The invention relates to a bar-type supporting structure for forming a frame, comprising a plurality of nodes and bars connecting the nodes, wherein each bar comprises at least one recess extending in the longitudinal direction of the bar, wherein the respective recess continues right into the node.07-29-2010

Hamidreza Khorsandraftar, Tehran IR

Patent application numberDescriptionPublished
20110308004SECURITY SYSTEM FOR ARTIFICIAL WATER BODIES - The embodiments herein provide a security system for a water body. The system includes a reticular structure arranged on a ground level, an electromotor, an electro hydraulic circuit with a plurality of hydraulic components placed in the water body, a central controlling unit, and a remote controller. A pressing operation of the remote controller transfers a command to the central controlling unit which in turn sends a control command to the plurality of hydraulic components to arrange the reticular structure at a required height in the water body. The reticular structure is moved vertically in a direction along the depth/height of the water body to a desired height based on the requirements.12-22-2011