Ashkan
Ashkan Alavi-Harati, Richmond Hill CA
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20110285763 | SYSTEM AND METHOD FOR IMPROVING COLOR AND BRIGHTNESS UNIFORMITY OF BACKLIT LCD DISPLAYS - Systems and methods for improving color and brightness uniformity of an image displayed on a backlit LCD are disclosed. In one example, a correction map is computed and applied to the LCD pixel values. In another example, the voltage settings of the backlight source components are also corrected in addition to the LCD pixel values. For efficient hardware implementation, corrections are applied using function representation of a grid data transformation relating measured values to corrected values. In one particular exemplary embodiment, the backlight source is provided by a plurality of LEDs. In another exemplary embodiment, the display consists of a plurality of OLEDs wherein the light source and the display panels coincide. | 11-24-2011 |
20130265571 | SYSTEM AND METHOD FOR CALIBRATING ULTRA WIDE-ANGLE LENSES - Systems and methods for obtaining mapping of Ultra Wide-Angle (UWA) lenses are disclosed. Captured image of a set of grid points on the inner surface of a precision made calibration dome is used as an input image. Image processing techniques are used to identify components of the image and compute the lens mapping. The lens mapping can be used to calibrate the lens against a standard or against other lenses. The mapping can further be used for perspective correction applications. | 10-10-2013 |
Ashkan Ashrafi, San Diego, CA US
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20120120787 | RECTANGULAR POWER SPECTRAL DENSITIES OF ORTHOGONAL FUNCTIONS - In this application, a set of orthogonal functions is introduced whose power spectral densities are all rectangular shape. To find the orthogonal function set, it was considered that their spectrums (Fourier transforms of the functions) are either real-valued or imaginary-valued, which are corresponding to even and odd real-valued time domain signals, respectively. The time domain functions are all considered real-valued because they are actually physical signals. The shape of the power spectral densities of the signals are rectangular thus, the Haar orthogonal function set can be employed in the frequency domain to decompose them to several orthogonal functions. Based on the inverse Fourier transform of the Haar orthogonal functions, the time domain functions with rectangular power spectral densities can be determined. This is equivalent to finding the time-domain functions by taking the inverse Fourier transform of the frequency domain Walsh functions. The obtained functions are sampled and truncated to generate finite-length discrete signals. Truncation destroys the orthogonality of the signals. The Singular Value Decomposition method is used to restore the orthogonality of the truncated discrete signals. | 05-17-2012 |
Ashkan Ashrafi, Huntsville, AL US
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20080298527 | DIRECT DIGITAL FREQUENCY SYNTHESIZER WITH PHASE SELECTABLE INTERPOLATOR - The disclosure relates to improved direct digital frequency synthesizers. A synthesizer in one embodiment is comprised of an accumulator that provides a phase signal and an interpolator having two or more interpolation polynomials. The polynomial that processes the phase signal is selected by comparing the phase signal to a threshold value. A reduced complexity digital circuit is provided for implementing the improved synthesizer. | 12-04-2008 |
Ashkan Emadi, Bethesda, MD US
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20130109643 | METABOLIC INHIBITOR AGAINST TUMORS HAVING AN IDH MUTATION | 05-02-2013 |
Ashkan Farhadi, Burr Ridge, IL US
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20100121144 | Endoscope Accessory - This invention relates generally to an endoscope accessory. This device uses an overtube with an inflatable positioning balloon that can be inflated after placement of the overtube just proximal to the tip of the endoscope or echoendoscope. This balloon creates a temporary blockade of the gastrointestinal tract proximal to the portion that needs to be examined. The other part of the device is a catheter with an occlusion balloon affixed to its free endportion and can be passed through a passageway within the overtube and extended beyond the tip of the endoscope, distal to the part of the gastrointestinal tract that needs to be examined. Inflation of this balloon together with positioning balloon creates a closed space within the body cavity that can be filled with air or water for improving the quality of the examination with regular endoscope of echoendoscope, respectively, while reducing the examination complications. | 05-13-2010 |
Ashkan Farhadtouski, Salt Lake City, UT US
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20120084654 | Individualized Adaptable Media Presentations and Method - Individualized, adaptable media presentations and a method for creating them are disclosed. In particular, each media presentation is generated according to user input and predetermined templates, overlaid with at least an instruction and an accompaniment layers generated from media clips (audio, video, audio/video) selected based on provided user data. The instruction and accompaniment layers are variable by the user and may then be overridden by the removal and replacement of individual media clips within the layer. The method and resultant media presentations as seen as ideal for exercise and physical training regimens, though may be utilized in any situation where recreation and instruction media presentation are used. | 04-05-2012 |
Ashkan Ferozepurwalla, Rancho Cordova, CA US
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20150107425 | TOOL FEED SYSTEM FOR USE WITH A ROTATING MACHINING DEVICE - A rotating machining device for machining a work piece includes a support housing adapted to be mounted on the work piece and a headstock rotatably mounted on the support housing. At least one tool module is mounted to the headstock and includes a tool feed system having a tool holder and a feed mechanism operatively connected to the tool holder. A tripper pin assembly is mounted on the support housing and arranged to collide with the feed mechanism for advancement of the tool holder relative to the work piece. The feed mechanism collides with the tripper pin assembly at a collision point radially positioned inside of an outer diameter of the headstock. | 04-23-2015 |
20150360293 | TOOL FEED SYSTEM FOR USE WITH A ROTATING MACHINING DEVICE - A rotating machining device for machining a work piece includes a body having a support housing and a headstock rotatable relative to the support housing. A tool feed system including a tool module is attached to the headstock and a tripper pin assembly is attached to the support housing. The tripper pin assembly is arranged to collide with the tool feed system at a collision point for advancement of the tool feed system relative to the work piece. The radial position of the collision point is adjustable relative to the tool module such that the collision point is repositionable independent of the tool module. | 12-17-2015 |
Ashkan Izadpanah, Vancouver CA
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20120249368 | METHOD AND APPARATUS FOR DETERMINING A POSITION OF A GNSS RECEIVER - A method of determining a position of a GNSS receiver includes: receiving, at the GNSS receiver, information from at least two GNSS satellites and an estimated location area from a non-GNSS positioning application, determining candidate pseudoranges corresponding to candidate correlation peaks determined based on the information received from the at least two GNSS satellites; determining possible positions of the GNSS receiver using the candidate pseudoranges and the estimated location area; determining a best possible position of the GNSS receiver from the possible positions; and setting the best possible position as the position of the GNSS receiver; wherein when multiple candidate correlation peaks corresponding to one of the at least two GNSS satellites are determined, the estimated location area is usable to reduce the number of candidate correlation peaks prior to candidate pseudoranges being determined. | 10-04-2012 |
20120256790 | SYSTEM AND METHOD FOR MANAGING EPHEMERIS REQUESTS FROM CLIENT DEVICES - A system and method for reducing peak loads on a network, includes: a server in communication with a plurality of GPS receivers, the receivers sending requests for an ephemeris to the server when a time of ephemeris (TOE) for a previous ephemeris expires; and the ephemeris received by the receivers being adjusted by the addition of a value to the TOE of the ephemeris, the value being randomly adjusted to a 16 second interval between 16 seconds and 30 minutes. | 10-11-2012 |
20140342755 | GEO-REFERENCE BASED POSITIONING OF A MOBILE DEVICE - A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical, area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format. | 11-20-2014 |
20150219769 | METHOD AND APPARATUS FOR DETERMINING A POSITION OF A GNSS RECEIVER - A method of determining a position of a GNSS receiver includes: receiving, at the GNSS receiver, information from at least two GNSS satellites and an estimated location area from a non-GNSS positioning application, determining candidate pseudoranges corresponding to candidate correlation peaks determined based on the information received from the at least two GNSS satellites; determining possible positions of the GNSS receiver using the candidate pseudoranges and the estimated location area; determining a best possible position of the GNSS receiver from the possible positions; and setting the best possible position as the position of the GNSS receiver; wherein when multiple candidate correlation peaks corresponding to one of the at least two GNSS satellites are determined, the estimated location area is usable to reduce the number of candidate correlation peaks prior to candidate pseudoranges being determined. | 08-06-2015 |
Ashkan Javaherian, So. San Francisco, CA US
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20110262956 | CO-CULTURE COMPOSITIONS AND METHODS - Co-culture compositions and methods are described for identifying agents that modulate a cellular phenotype, particularly of neurons or pancreatic beta cells are provided herein, where the methods include co-culturing differentiated cells, wherein at least one of the cell-types are derived from human induced pluripotent stem cells from a subject having or predisposed to a neurodegenerative or metabolic disorder. Co-culture compositions of differentiated cells from two different human subjects are also described. | 10-27-2011 |
Ashkan Kamali, West Conshohocken, PA US
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20090105265 | Pharmaceutical Compositions of Combinations of Dipeptidyl Peptidase-4 Inhibitors With Metformin - Disclosed are pharmaceutical compositions comprising fixed-dose combinations of a dipeptidyl peptidase-4 inhibitor and metformin, methods of preparing such pharmaceutical compositions, and methods of treating Type 2 diabetes with such pharmaceutical compositions. | 04-23-2009 |
Ashkan Khajoo, Tehran IR
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20150216540 | Trans pars interarticularis operation for releasing of the adhesions in lumbar spinal reoperations - This invention proposes releasing adhesions and pressure on nerve roots of spinal cord by directly drilling a hole in pars interarticularis and accessing the nerve root laterally from outside of vertebra, which does not cause any damage to the spinal cord and its dural (dural is a lining which covers the cord). | 08-06-2015 |
Ashkan Mazarei, Simi Valley, CA US
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20160096157 | APPARATUS FOR THE CONTROLLED MIXING AND DISPENSING OF LIQUIDS - A new apparatus & method of use thereof for providing a selectable e-liquid juice solution from a dispenser are provided. In one embodiment a method for (a) providing a user determined combination of various liquids in a predetermined mixture that results in customized e-liquid juice having user specified quantities of propylene glycol, vegetable glycerin, nicotine, and flavoring is disclosed; (b) separately storing at least four liquids to be mixed after user determined selections are input; (c) facilitating the storage in memory of recipes for e-liquid juice or combinations thereof; (d) receiving a selection or user input for a specific combination of liquids; (e) dispensing automatically in response to the selection or user input the resulting volume of liquid combination. | 04-07-2016 |
Ashkan Naeini, Muenchen DE
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20130154728 | Adaptive Filtering of Blocker Signals in Demodulators - Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit. | 06-20-2013 |
20130316671 | Dual Mode Receiver with RF Splitter Using Programmable Passive Components - One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes. | 11-28-2013 |
Ashkan Naeini, Munchen DE
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20100047063 | Use of a Tungsten Bronze Structured Material and Turbine Component with s Thermal Barrier Coating - A tungsten bronze structured ceramic material as a thermal barrier coating is described wherein the tungsten bronze structured ceramic coating material has the formula AO—B | 02-25-2010 |
Ashkan Naeini, Munich DE
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20140077879 | Push-Pull Amplifier and Differential Push-Pull Amplifier - A push-pull amplifier includes an amplifier input, a push amplifier stage, a pull amplifier stage and an inverting amplifier output. | 03-20-2014 |
20150372360 | FILTERLESS BROADBAND FRONT-END ISOLATOR - Representative implementations of devices and techniques provide isolation between transmit and receive portions of a broadband transceiver of a wireless communication system. filterless isolation technique is performed via a directional Phase shifting arrangement that includes an isolating hybrid device coupled to a non-reciprocal phase shifting combiner/splitter. | 12-24-2015 |
20160094249 | APPARATUS AND METHOD FOR GENERATING BASE BAND RECEIVE SIGNALS - An apparatus for generating base band receive signals includes a first analog-to-digital converter module generating a first digital high frequency receive signal at least by sampling a first analog high frequency receive signal, a first digital signal processing module generating a first base band receive signal based on the first digital high frequency receive signal, a second analog-to-digital converter module generating a second digital high frequency receive signal at least by sampling a second analog high frequency receive signal and a second digital signal processing module generating a second base band receive signal based on the second digital high frequency receive signal. The first analog high frequency receive signal comprises first payload data at a first receive channel associated with a first carrier frequency and the second analog high frequency receive signal comprises second payload data at a second receive channel associated with a second carrier frequency. | 03-31-2016 |
Ashkan Nowtash, Boston, MA US
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20140259877 | INSECT TRAP RELEASE MECHANISM - A pest trap, such as for flies, includes a disposable bag with a lure therein, and a sealing mechanism set at or near the top of the bag. The sealing mechanism engages with a removable top, which covers a canister. The bag with sealing mechanism is connected to the top, and then the top is placed on the canister, with the disposable bag in the canister. Once the bag has become filled with pest insects, the sealing mechanism is activated, which seals the top of the bag and separates the bag from the top. The top can then be removed from the canister, and the canister upended to dump the disposable bag into the garbage. | 09-18-2014 |
Ashkan Rasouli, London CA
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20160138981 | SENSOR DEVICE THAT PROVIDES FORCE VERSUS ACCELERATION INFORMATION - An illustrative example embodiment of a sensing device includes a force sensor that detects a force and provides an output indicative of the detected force. An acceleration sensor detects acceleration and provides an output indicative of the detected acceleration. A processor receives the output from the force sensor and the acceleration sensor. The processor provides an indication of a relationship between the detected force and the detected acceleration. | 05-19-2016 |
Ashkan Sardari, North Vancouver CA
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20130172883 | ENHANCED MEDICAL DEVICE FOR USE IN BODILY CAVITIES, FOR EXAMPLE AN ATRIUM - Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath, The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation. The device is retractable. | 07-04-2013 |
20130178850 | ENHANCED MEDICAL DEVICE FOR USE IN BODILY CAVITIES, FOR EXAMPLE AN ATRIUM - Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath, The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation. The device is retractable. | 07-11-2013 |
20130178851 | ENHANCED MEDICAL DEVICE FOR USE IN BODILY CAVITIES, FOR EXAMPLE AN ATRIUM - Systems, methods, and devices allow intravascular or percutaneous mapping, orientation and/or ablation, in bodily cavities or lumens. A device includes elongate members, moveable between an unexpanded configuration and an expanded or fanned configuration. The elongate members form a stack in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducer elements carried by elongate members sense various physiological characteristics of or proximate tissue, and/or may apply energy to or proximate tissue. The elongate members are rotatable in groups or as a group in the expanded configuration. The device is retractable. | 07-11-2013 |
Ashkan Sardari, Surrey CA
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20130304065 | ENHANCED MEDICAL DEVICE FOR USE IN BODILY CAVITIES, FOR EXAMPLE AN ATRIUM - Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation. The device is retractable. | 11-14-2013 |