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Title: Methods for Multi-User Broadband Wireless Channel Estimation
Creator: Tahat, Ashraf A.
Date: 2012-03-20, 2008-06-10
Description: A system and method of channel estimation for a multi-user broadband wireless channel estimation in multiple antenna receiver systems use a...
Show moreA system and method of channel estimation for a multi-user broadband wireless channel estimation in multiple antenna receiver systems use a specifically selected delay in the pilot symbol sequence portion of the transmission which is a multiple of the minimum Cyclic Prefix delay length. This insures that the time-frequency slot information bursts will always be separated in the time domain. A matched filter output in the receiver is formed by multiplying each pilot symbol by the conjugate of the training symbols of the first user. Estimation of the channel response may include three different versions of the efficient estimation calculations, namely Constrained Inverse Deconvolution, Iterative Low Complexity, and Extrapolated Matched Filter estimations. The first two methods do not require matrix multiplication (using only Fourier transforms), while the third method utilizes a smaller matrix multiplication than previously taught. Hardware considerations are also reduced due to the lack of a need for extensive matrix by matrix calculations.
Sponsorship: Illinois Institute of Technology
United States Patent
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Title: Confinement in Porous Material by Driving Out Water and Substituting Sealent
Creator: Bridges, Jack E.
Date: 2009-05-08, 1990-02-13
Description: To provide confinement in a porous medium in the earth, a limited region of the porous medium is heated to drive substantially all of the free...
Show moreTo provide confinement in a porous medium in the earth, a limited region of the porous medium is heated to drive substantially all of the free water from open spaces of the medium in the region. After heating, liquid material is introduced into the open spaces in the medium, which liquid material will set into a substantially solid structure. The liquid material is then set in the open spaces to form a substantially solid structure in the medium in the region.
Sponsorship: IIT Research Institute
United States Patent
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Title: Winding and Reeling Mechanism
Creator: Zenner, Raymond E.
Date: 2012-03-20, 1951-04-17
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Bifilar Magnetic Recording System
Creator: Camras, Marvin
Date: 1949-09-13
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Detonator
Creator: Savitt, Jacob, Stresau, Richard H., Weber, John P.
Date: 1962-11-06
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Distributed Feed Fuel Cell Stack
Creator: Al-qattan, Ayman M., Chmielewski, Donald J., Al-hallaj, Said
Date: 2012-03-20, 2009-12-15
Description: A fuel cell having a distributed fuel feed in which the heat generation profile can be better controlled. Fuel channel stack and system...
Show moreA fuel cell having a distributed fuel feed in which the heat generation profile can be better controlled. Fuel channel stack and system efficiency improvements are achieved.
Sponsorship: Illinois Institute of Technology
United States Patent
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Title: Hafnium Base Alloy (Boron)
Creator: Hill, Vernon L., Nichols, Harry R.
Date: 2009-04-27, 1971-11-23
Description: Hafnium tantalum alloy containing about 15 and about 35 weight percent tantalum, between about 0.03 and about 2.0 weight percent boron, and at...
Show moreHafnium tantalum alloy containing about 15 and about 35 weight percent tantalum, between about 0.03 and about 2.0 weight percent boron, and at least one additional alloying agent selected from chromium, silicon and aluminum.
Sponsorship: IIT Research Institute
United States Patent
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Title: Signal Transducer Systems
Creator: Camras, Marvin
Date: 4/24/2009, 1970-04-14
Description: Sponsorship: IIT Research Institute
United States Patent

Title: Method and Apparatus for Treating Materials
Creator: Schey, John A.
Date: 2009-04-27, 1971-02-09
Description: Sponsorship: IIT Research Institute
United States Patent

Title: Process to Allocate Channels in a Sectorized Cellular Network
Creator: Nguyen, Vincent Ahndzung, Wan, Peng-jun, Frieder, Ophir
Date: 2012-05-02, 2012-04-24
Description: The invention disclosed is a process to allocate channels in a sectorized cellular network. A system of allocating cellular frequencies ...
Show moreThe invention disclosed is a process to allocate channels in a sectorized cellular network. A system of allocating cellular frequencies (channels) to the sectors among the cells within a tile is disclosed which maximizes channel set usage within the tile while avoiding co-channel interference between cells. According to the present system, no infrastructure rebuild is required. The disclosed approach further supports all currently used cellular technology. By alternating and rotating the channel assignments across sectors, what is a seemingly locally poor algorithm utilizing additional local channels is actually a globally good algorithm which is efficient in terms of the total number of channels used owing to short reuse distance and low number of cell types.
Sponsorship: Illinois Institute of Technology
United States Patent
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Title: Method of Producing Hydrazine
Creator: Gunning, Harry E., Khan, Allan
Date: 1956-02-28
Description: Sponsorship: Illinois Institute of Technology
United States Patent

Title: Magnetic Transducer System
Creator: Camras, Marvin
Date: 4/23/2009, 1968-05-07
Description: Sponsorship: IIT Research Institute
United States Patent

Title: Magazine Type Magnetic Recording and Reproducing Device
Creator: Camras, Marvin
Date: 1951-10-23
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Apparatus for Measuring Vibrations
Creator: Hardy, Howard C.
Date: 1956-02-07
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Electromagnetic Transducer Head
Creator: Camras, Marvin
Date: 1953-02-10
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Apparatus and Method for In Situ Heat Processing of Hydrocarbonaceous Formations
Creator: Bridges, Jack, Taflove, Allen
Date: 2009-05-08, 1979-03-20
Description: The disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio...
Show moreThe disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio frequency (RF) electrical energy that is substantially confined to the volume to be heated and effects of dielectric heating of the formations. An important aspect of the disclosure relates to the fact that certain hydrocarbonaceous earth formations, for example raw unheated oil shale, exhibit dielectric absorption characteristics in the radio frequency range. In accordance with the system of the invention, a plurality of conductors are inserted in the formations and bound a particular volume of the formations. The phrase "bounding a particular volume" is intended to mean that the volume is enclosed on at least two sides thereof. Electrical excitation is provided for establishing alternating electric fields in the volume. The frequency of the excitation is selected as a function of the dimensions of the volume so as to establish a substantially non-radiating electric field which is substantially confined in the volume. In this manner, volumetric dielectric heating of the formations will occur to effect approximately uniform controlled heating of the volume
Sponsorship: IIT Research Institute
United States Patent
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Title: Sysnthesis of a Carbon-Based Catalyst from Sludge
Creator: Khalili, Nasrin R., Arastoopour, Hamid
Date: 2009-05-14, 2002-03-26
Description: The synthesis of a carbon-based catalyst from sludge materials such as produced by the paper mill industry and the like is described wherein...
Show moreThe synthesis of a carbon-based catalyst from sludge materials such as produced by the paper mill industry and the like is described wherein the treated material is subjected to processing including chemical activation with an appropriate metal-based activating agent, light and humidity treatment, and pyrolysis to result in a desired carbon-based catalyst.
Sponsorship: Illinois Institute of Technology
United States Patent
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Title: Magnetic Transducer Head Assembly
Creator: Camras, Marvin
Date: 1956-02-28
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Magnetic Transducing Assembly
Creator: Camras, Marvin
Date: 1958-06-24
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Method for Producing Easily Oxidized High Melting Point Metals and Their Alloys
Creator: Mondolfo, Lucio F.
Date: 1957-08-20
Description: Sponsorship: Illinois Institute of Technology
United States Patent

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