Patents by Inventor Imtiaz Khan
Imtiaz Khan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230379142Abstract: A method to exchange and manage a key is provided. The method includes receiving, at a computational storage device (CSD), a user certificate (CAuser) that is generated based on a public key of a user (PUuser);extracting, at the CSD, the PUuser using a public key of the certificate authority (PUca); generating, at the CSD, an encryption program key; encrypting, at the CSD, the encryption program key using the PUuser to generate an encrypted encryption program key; and storing, at the CSD, the encrypted encryption program key.Type: ApplicationFiled: August 2, 2022Publication date: November 23, 2023Inventors: Ilgu HONG, Changho CHOI, Mohammad Nasim Imtiaz KHAN
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Patent number: 11568609Abstract: In one example, an apparatus comprises: a first sensor layer, including an array of pixel cells configured to generate pixel data; and one or more semiconductor layers located beneath the first sensor layer with the one or more semiconductor layers being electrically connected to the first sensor layer via interconnects. The one or more semiconductor layers comprises on-chip compute circuits configured to receive the pixel data via the interconnects and process the pixel data, the on-chip compute circuits comprising: a machine learning (ML) model accelerator configured to implement a convolutional neural network (CNN) model to process the pixel data; a first memory to store coefficients of the CNN model and instruction codes; a second memory to store the pixel data of a frame; and a controller configured to execute the codes to control operations of the ML model accelerator, the first memory, and the second memory.Type: GrantFiled: May 7, 2021Date of Patent: January 31, 2023Assignee: Meta Platforms Technologies, LLCInventors: Xinqiao Liu, Barbara De Salvo, Hans Reyserhove, Ziyun Li, Asif Imtiaz Khan, Syed Shakib Sarwar
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Publication number: 20220004335Abstract: An embodiment of an electronic apparatus may include one or more substrates, and a controller coupled to the one or more substrates, the controller including circuitry to control access to NAND-based storage media that includes a plurality of NAND devices, maintain respective read disturb (RD) counters for each of two or more tracked units at respective granularities, maintain respective global RD counters for each of the two or more tracked units and, in response to a read request, increment one or more global RD counters that correspond to the read request, determine if a global RD counter for a tracked unit matches a random number associated with the tracked unit and, if so determined, increment a RD counter for the tracked unit that corresponds to the read request and generate a new random number for the tracked unit. Other embodiments are disclosed and claimed.Type: ApplicationFiled: September 22, 2021Publication date: January 6, 2022Applicant: Intel CorporationInventors: Mohammad Nasim Imtiaz Khan, Yogesh B. Wakchaure, Eric Hoffman, Neal Mielke, Shirish Bahirat, Cole Uhlman, Ye Zhang, Anand Ramalingam
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Publication number: 20210264679Abstract: A sensor assembly for determining one or more features of a local area is presented herein. The sensor assembly includes a plurality of stacked sensor layers. A first sensor layer of the plurality of stacked sensor layers located on top of the sensor assembly includes an array of pixels. The top sensor layer can be configured to capture one or more images of light reflected from one or more objects in the local area. The sensor assembly further includes one or more sensor layers located beneath the top sensor layer. The one or more sensor layers can be configured to process data related to the captured one or more images. Different sensor architectures featuring various arrangements of memory and computing devices are described, some of which feature in-memory computing. A plurality of sensor assemblies can be integrated into an artificial reality system, e.g., a head-mounted display.Type: ApplicationFiled: May 6, 2021Publication date: August 26, 2021Inventors: Xinqiao LIU, Barbara DE SALVO, Hans REYSERHOVE, Ziyun LI, Asif Imtiaz KHAN, Syed Shakib SARWAR
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Patent number: 10759747Abstract: The present invention relates to a method of radiochemical synthesis. Novel methods useful in the synthesis of a positron emission tomography (PET) tracer, and novel intermediates useful in said method are provided that have advantages over known methods.Type: GrantFiled: May 2, 2017Date of Patent: September 1, 2020Assignees: GE HEALTHCARE LIMITED, KINGS COLLEGE LONDONInventors: Imtiaz Khan, Graeme McRobbie, Anna Kirjavainen
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Publication number: 20190161440Abstract: The present invention relates to a method of radiochemical synthesis. Novel methods useful in the synthesis of a positron emission tomography (PET) tracer, and novel intermediates useful in said method are provided that have advantages over known methods.Type: ApplicationFiled: May 2, 2017Publication date: May 30, 2019Inventors: Imtiaz KHAN, Graeme MCROBBIE, Anna KIRJAVAINEN
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Patent number: 9954351Abstract: There is provided a protection circuit configured to indicate an overcurrent condition of a conductor conducting a load current, the protection circuit including a first current integrator and a second current integrator, each of the first and second integrators being configured to integrate an input voltage proportional to the load current, a summing amplifier configured to receive an offset voltage, to amplify a signal from the second integrator, and to generate a trip threshold based on the input voltage and the offset voltage, and a comparator configured to compare an output of the first current integrator and the trip threshold, and to generate a trip signal at a trip time when the trip threshold is equal to an output of the first integrator, the trip signal indicating an overcurrent condition.Type: GrantFiled: October 26, 2015Date of Patent: April 24, 2018Assignee: LEACH INTERNATIONAL CORPORATIONInventors: Anhtai Le Tran, Imtiaz Khan
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Publication number: 20170117698Abstract: There is provided a protection circuit configured to indicate an overcurrent condition of a conductor conducting a load current, the protection circuit including a first current integrator and a second current integrator, each of the first and second integrators being configured to integrate an input voltage proportional to the load current, a summing amplifier configured to receive an offset voltage, to amplify a signal from the second integrator, and to generate a trip threshold based on the input voltage and the offset voltage, and a comparator configured to compare an output of the first current integrator and the trip threshold, and to generate a trip signal at a trip time when the trip threshold is equal to an output of the first integrator, the trip signal indicating an overcurrent condition.Type: ApplicationFiled: October 26, 2015Publication date: April 27, 2017Inventors: Anhtai Le Tran, Imtiaz Khan
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Patent number: 9125954Abstract: The present invention provides a method for the synthesis of 18F-labelled biomolecules, which is amenable to automation. The present invention also provides a cassette for automating the method of the invention. The method of the present invention provides numerous advantages over the prior art methods. One less purification step is required as compared with known methods. Also, one less reagent is required as a particular reagent is employed in two different steps. The chemistry process is thereby simplified, the cost of goods is reduced and the burden of validation and documentation of reagents required for GMP clinical production is minimized.Type: GrantFiled: October 15, 2012Date of Patent: September 8, 2015Assignee: GE Healthcare LimitedInventors: Rajiv Bhalla, Anthony Wilson, Imtiaz Khan, Janne Brown
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Patent number: 9085518Abstract: The present invention provides a method for the synthesis of 18F-labelled biomolecules, which is amenable to automation. The present invention also provides a cassette for automating the method of the invention. The method of the present invention provides numerous advantages over the prior art methods. One less purification step is required as compared with known methods. Also, in a preferred embodiment, one less reagent is required as a particular reagent is employed in two different steps. The chemistry process is thereby simplified, the cost of goods is reduced and the burden of validation and documentation of reagents required for GMP clinical production is minimized.Type: GrantFiled: October 15, 2012Date of Patent: July 21, 2015Assignee: GE Healthcare LimitedInventors: Robert James Domett Nairne, Rajiv Bhalla, Imtiaz Khan, Jane Brown, Anthony Wilson, Andres Black
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Patent number: 9061996Abstract: The present invention provides a method to prepare an 18F-labelled tricyclic indole compound comprising a solid-phase extraction (SPE) purification step. This method is particularly suitable for carrying out the radiofluorination method on an automated synthesizer. In addition to the radiofluorination method, the present invention provides a cassette designed to carry out the method on an automated synthesizer.Type: GrantFiled: December 14, 2011Date of Patent: June 23, 2015Assignee: GE Healthcare LimitedInventors: Dimitrios Mantzilas, Gry Helene Olaussen, Torild Wickstrom, Eric Horn, Imtiaz Khan
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Publication number: 20140243555Abstract: The present invention provides a method for the synthesis of 18F-labelled biomolecules, which is amenable to automation. The present invention also provides a cassette for automating the method of the invention. The method of the present invention provides numerous advantages over the prior art methods. One less purification step is required as compared with known methods. Also, in a preferred embodiment, one less reagent is required as a particular reagent is employed in two different steps. The chemistry process is thereby simplified, the cost of goods is reduced and the burden of validation and documentation of reagents required for GMP clinical production is minimised.Type: ApplicationFiled: October 15, 2012Publication date: August 28, 2014Applicant: GE HEALTHCARE LIMITEDInventors: Robert James Domett Nairne, Rajiv Bhalla, Imtiaz Khan, Jane Brown, Anthony Wilson, Andres Black
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Publication number: 20140235861Abstract: The present invention provides a method for the synthesis of 18F-labelled biomolecules, which is amenable to automation. The present invention also provides a cassette for automating the method of the invention. The method of the present invention provides numerous advantages over the prior art methods. One less purification step is required as compared with known methods. Also, one less reagent is required as a particular reagent is employed in two different steps. The chemistry process is thereby simplified, the cost of goods is reduced and the burden of validation and documentation of reagents required for GMP clinical production is minimised.Type: ApplicationFiled: October 15, 2012Publication date: August 21, 2014Applicant: GE HEALTHCARE LIMITEDInventors: RAJIV Bhalla, Anthony Wilson, Imtiaz Khan, Janne Brown
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Publication number: 20130338361Abstract: Provided by the present invention is a novel method for obtaining an 18F-labelled compound wherein said compound comprises an 18F-labelled pyridyl ring. The method of the invention is advantageous over the prior art methods as it provides these compounds in higher radiochemical yields than have been possible with previous methods. Also provided by the present invention is an 18F-labelled synthon useful in the method of the invention.Type: ApplicationFiled: March 1, 2012Publication date: December 19, 2013Applicant: GE HEALTHCARE LIMITEDInventors: Helen May Betts, Imtiaz Khan, Edward George Robins
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Publication number: 20130261315Abstract: The present invention provides a method to prepare an 18F-labelled tricyclic indole compound comprising a solid-phase extraction (SPE) purification step. This method is particularly suitable for carrying out the radiofluorination method on an automated synthesiser. In addition to the radiofluorination method, the present invention provides a cassette designed to carry out the method on an automated synthesiser.Type: ApplicationFiled: December 14, 2011Publication date: October 3, 2013Applicant: GE HEALTHCARE LIMITEDInventors: Dimitrios Mantzilas, Gry Helene Olaussen, Torild Wickstrom, Eric Horn, Imtiaz Khan
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Patent number: 8412966Abstract: Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.Type: GrantFiled: April 25, 2012Date of Patent: April 2, 2013Assignee: Leach International CorporationInventors: Farshid Tofigh, Otmar Kruppa, Imtiaz Khan, Iraj Ghahramani, David Lawton, Kent Policky
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Publication number: 20120206844Abstract: Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Inventors: Farshid Tofigh, Otmar Kruppa, Imtiaz Khan, Iraj Ghahramani, David Lawton, Kent Policky
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Patent number: 8190934Abstract: Solid state power controllers in various configurations are provided. One such solid state power controller includes a power connector, a load connector and at least one communication connector, a solid state switch electrically connectable between the power connector and the load connector, where the switch includes an input, a microcontroller coupled to the input of the solid state switch, and current sensing circuitry coupled to the microcontroller and configured to sense a current flowing through the solid state switch, the current sensing circuitry including an amplifier having an offset error, where the current sensing circuitry is configured to generate a signal indicative of the current flowing through the solid state switch, and bias the generated signal to a predetermined level to substantially eliminate the offset error in the amplifier.Type: GrantFiled: February 10, 2010Date of Patent: May 29, 2012Assignee: Leach International CorporationInventors: Farshid Tofigh, Otmar Kruppa, Imtiaz Khan, Iraj Ghahramani, David Lawton, Kent Policky
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Publication number: 20100214703Abstract: Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.Type: ApplicationFiled: February 10, 2010Publication date: August 26, 2010Inventors: Farshid Tofigh, Otmar Kruppa, Imtiaz Khan, Iraj Ghahramani, David Lawton, Kent Policky
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Patent number: 7747879Abstract: Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.Type: GrantFiled: February 16, 2006Date of Patent: June 29, 2010Assignee: Leach International CorporationInventors: Farshid Tofigh, Otmar Kruppa, Imtiaz Khan, Iraj Ghahramani, David Lawton, Kent Policky