Kayvan
Kayvan Abbassian, Pleasanton, CA US
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20110241597 | H-BRIDGE DRIVE CIRCUIT FOR STEP MOTOR CONTROL - A drive circuit for step motors with bifilar windings is provided in which both parallel and series winding configurations for the stator coils are selectable by a motor controller based on the motor speed. For low speeds a series configuration is selected, while for higher speeds a parallel configuration is selected. Dynamic torque is optimized by the selection for more efficient motor operation with less drive current. | 10-06-2011 |
Kayvan Farzin, San Diego, CA US
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20130283142 | METHOD AND APPARATUS FOR A SECURE, COLLABORATIVE COMPUTER BASED COMMUNITY - A safe cloud-based environment for student learning and collaboration, promotion of appropriate and responsible online student behavior, introduction and development of student work skills and abilities, and access to hundreds of online learning systems for students instantly and securely. For parents, real-time access to student performance and behavior is afforded, as is easily submitted student registration information online. Collaboration of parents with school staff and other parents is promoted. For teachers, appropriate teaching curriculum and effective assessment/grading methods can be created/provided and collaboration with students and parents regarding assignments, events, and other information is promoted. The effectiveness of teaching initiatives and programs is tracked and analyzed and direct and instant access to critical student information is provided. For administrators, performance data and metrics is tracked, and individualized or customized information and data is distributed globally within the community. | 10-24-2013 |
Kayvan Hejazifar, Wilmington, OH US
Patent application number | Description | Published |
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20130260076 | Separable Fabric Article - A separable fabric article includes first and second fabric portions each having at least one free edge. The separable fabric article includes a plurality of first magnetic fasteners spaced apart along the first portion free edge. Similarly, a plurality of second magnetic fasteners is spaced apart along the second portion free edge. The first and second fabric portions are movable between a connected configuration in which the plurality of first magnetic fasteners are coupled to the plurality of second magnetic fasteners and a released configuration in which the plurality of first magnetic fasteners are separated from the plurality of second magnetic fasteners. The free edges of the first and second portions are adjacent one another at the connected configuration and displaced from one another at the released configuration. Respective magnetic fasteners of said first and second fabric portions are configured to be in alignment at said connected configuration. | 10-03-2013 |
Kayvan Keshari, Stockton, CA US
Patent application number | Description | Published |
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20120258050 | 13C-MR DETECTION USING HYPERPOLARISED 13C-FRUCTOSE - The invention relates to a method of | 10-11-2012 |
20130144155 | SYSTEMS AND METHODS USING NUCLEAR MAGNETIC RESONANCE (NMR) SPECTROSCOPY TO EVALUATE PAIN AND DEGENERATIVE PROPERTIES OF TISSUE - NMR spectroscopy is performed on intervertebral disc tissue. Extent of degeneration is determined based on the NMR spectroscopy. Correlation between NMR spectral regions and at least one of tissue degeneration and pain are made. Accordingly, NMR spectroscopy is used to determine location and/or extent of at least one of degeneration or pain associated with a region of tissue, such as for example in particular disc degeneration, or discogenic pain. NMR spectral peak ratios, such as between N-Acetyl/cho and cho/carb, are readily acquired and analyzed to predict degree of tissue degeneration and/or pain for: tissue samples using HR-MAS spectroscopy; and larger portions of anatomy such as joint segments such as a spine, using clinical 3T MRI systems with surface head or knee coils; and tissue regions such as discs within spines of living patients using 3T MRI systems with a surface spine coil, thus providing a completely non-invasive diagnostic toolset and method to image and localize degeneration and/or pain. | 06-06-2013 |
20130149250 | HYPERPOLARIZED AGENTS FOR MRI CHARACTERIZATION OF REDOX SYSTEMS IN VIVO - The present invention provides a MRI probe of use in detecting and characterizing redox systems in vivo. Also provided are methods of using the probe in MR imaging experiments for diagnosis of disease in a subject, for drug discovery and for probing the redox states of biological systems in vitro. | 06-13-2013 |
Kayvan Sadra, Addison, TX US
Patent application number | Description | Published |
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20080237745 | SRAM CELL WITH ASYMMETRICAL TRANSISTORS FOR REDUCED LEAKAGE - A method of fabricating an SRAM cell with reduced leakage is disclosed. The method comprises fabricating asymmetrical transistors in the SRAM cell. The transistors are asymmetrical in a manner that reduces the drain leakage current of the transistors. The fabrication of asymmetrical pass transistors comprises forming a dielectric region on a surface of a substrate having a first conductivity type. A gate region having a length and a width is formed on the dielectric region. Source and drain extension regions having a second conductivity type are formed in the substrate on opposite sides of the gate region. A first pocket impurity region having a first concentration and the first conductivity type is formed adjacent the source. A second pocket impurity region having a second concentration and the first conductivity type may be formed adjacent the drain. If formed, the second concentration is smaller than the first concentration, reducing the gate induced drain leakage current. | 10-02-2008 |
20090258471 | Application of Different Isolation Schemes for Logic and Embedded Memory - The present invention facilitates semiconductor device fabrication by providing mechanisms for utilizing different isolation schemes within embedded memory and other logic portions of a device. The isolation mechanism of the embedded memory portion is improved relative to other portions of the device by increasing dopant concentrations or reducing the depth of the dopant profiles within well regions of the embedded memory array. As a result, smaller isolation spacing can be employed thereby permitting a more compact array. The isolation mechanism of the logic portion is relatively less than that of the embedded memory portion, which permits greater operational speed for the logic. | 10-15-2009 |
20100207183 | SRAM Cell with Asymmetrical Pass Gate - A method of controlling gate induced drain leakage current of a transistor is disclosed. The method includes forming a dielectric region ( | 08-19-2010 |
20120074973 | ON-DIE PARAMETRIC TEST MODULES FOR IN-LINE MONITORING OF CONTEXT DEPENDENT EFFECTS - An integrated circuit (IC) die has an on-die parametric test module. A semiconductor substrate has die area, and a functional IC formed on an IC portion of the die area including a plurality of circuit elements configured for performing a circuit function. The on-die parametric test module is formed on the semiconductor substrate in a portion of the die area different from the IC portion. The on-die parametric test module includes a reference layout that provides at least one active reference MOS transistor, wherein the active reference MOS transistor has a reference spacing value for each of a plurality of context dependent effect parameters. A plurality of different variant layouts are included on the on-die parametric test module. Each variant layout provides at least one active variant MOS transistor that provides a variation with respect to the reference spacing value for at least one of the context dependent effect parameters. | 03-29-2012 |
20120261768 | SRAM CELL WITH ASYMMETRICAL PASS GATE - A method of controlling gate induced drain leakage current of a transistor is disclosed. The method includes forming a dielectric region ( | 10-18-2012 |