Patents by Inventor Arpit MITTAL

Arpit MITTAL 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).

  • Publication number: 20240119991
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 11, 2024
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 11823728
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: November 21, 2023
    Assignee: Apple Inc.
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Publication number: 20220254410
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Application
    Filed: March 4, 2022
    Publication date: August 11, 2022
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 11270753
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 11262835
    Abstract: Methods, systems, computer-readable media, and apparatuses for selecting an Augmented Reality (AR) object on a head mounted device (HMD) are presented. In some embodiments, an HMD may define a Region-of-Interest (ROI) based on a gesture formed by at least one hand of a user. Subsequently the HMD may display to the user a shape on the HMD. In at least one arrangement, the shape outlines the ROI. Additionally, the HMD may display to the user a plurality of AR objects, each of the plurality of AR objects being associated with a target inside the ROI. Furthermore, the HMD may reduce the size of the ROI based on a first movement of the at least one hand of the user to form a reduced-sized ROI. In at least one arrangement, the reduced-sized ROI is used to select a specific AR object from the plurality of AR objects.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: March 1, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Arpit Mittal, Giuliano Maciocci, Michael L. Tunmer, Paul Mabbutt
  • Publication number: 20210201987
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Application
    Filed: February 23, 2021
    Publication date: July 1, 2021
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 10997223
    Abstract: A method comprising receiving subject data indicative of a subject entity and selecting, from a plurality of data sets, and based on the subject data, a subject entity data set which corresponds to the subject entity. The subject entity data set comprises first related entity data representative of a first related entity related to the subject entity and first text data representative of first text associated with the first related entity. Unstructured text data representative of unstructured text is received and processed, using the first text data, to identify a portion of the unstructured text data corresponding to the first text data. The first text data is used to identify, from the subject entity data set, the first related entity data and the portion of the unstructured text data is identified as corresponding to the first related entity data.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 4, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Christos Christodoulopoulos, Arpit Mittal, Andrew Christopher Graham Hopkinson
  • Patent number: 10978136
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 10963497
    Abstract: A query parsing system uses a multi-stage process to parse the text of incoming queries before attempting to answer the queries. The multi-stage configuration involves a first trained classifier to determine the query type, or intent, of the text and a plurality of second trained classifiers, where each of the second trained classifiers is configured particularly for one specific respective query type. During query processing, the first trained classifier is used on the text to identify the query type. A second trained classifier for that specific identified query type is then found and used on the text to identify what strings in the text correspond to specific entities needed to resolve the query. The identified text strings and query type are then placed into a form understandable by a knowledge base and sent to the knowledge base for resolution. The classifiers may be trained using queries and answers previously processed by the knowledge base using a rules/template resolution process.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: March 30, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Mihai Valentin Tablan, Sina Samangooei, Arpit Mittal, David Spike Palfrey, Emilio Monti, Pedro Ribeiro, Benjamin David Scott, Petra Elisabeth Holmes, Dianhuan Lin
  • Publication number: 20210020231
    Abstract: In an embodiment, a memory controller in an integrated circuit may generate refreshes for one or more DRAMs coupled to the integrated circuit according to a refresh rate. The integrated circuit may include one or more temperature sensors. A rate of change of the temperature may be determined from the temperature sensors. If the rate is greater than a threshold, the memory controller may generate refreshes according to a refresh rate specified by the DRAMs. If the rate is less than the threshold, the memory controller may generate refreshes at a reduced refresh rate.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 21, 2021
    Inventors: Liang Deng, Norman J. Rohrer, Yizhang Yang, Arpit Mittal
  • Patent number: 10896222
    Abstract: A method comprising receiving subject data indicative of a subject entity. First entity data is obtained from a knowledge database using the subject data, the first entity data representative of a first related entity related to the subject entity. First text data is obtained from the knowledge database using the first entity data, the first text data representative of first text associated with the first related entity. A subject entity data set is generated. The subject entity data set comprises first related entity data based on the first entity data, and the first text data.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 19, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Christos Christodoulopoulos, Arpit Mittal, Andrew Christopher Graham Hopkinson
  • Patent number: 10503222
    Abstract: A method for temperature mitigation includes receiving a signal from a temperature sensor that is disposed within a computing device. A processor chip within the computing device produces heat. The signal from the temperature sensor is converted to temperature data. The method further includes processing the temperature data to generate an estimate of a temperature of an external surface of the device. The processing includes applying a low pass filter to the temperature data, applying an amplitude attenuation to the temperature data, and applying a delay to the temperature data. The method further includes reducing an operating parameter of the processor chip, such as operating frequency, in response to the estimated temperature of the external surface of the device.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: December 10, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Arpit Mittal, Mehdi Saeidi, Farsheed Mahmoudi
  • Patent number: 10489393
    Abstract: A voice-controlled question answering system that uses both a knowledge base and a detailed index of other sources that may be accessible over the Internet. The knowledge base is used to answer questions of more general interest whose answers are contained in the knowledge base. The index is used to answer more complex questions that are not answerable using the knowledge base. Web and other sources are analyzed to create the index, where text segments are indexed along with data describing the text segments in a quasi-semantic way. Quasi-semantic features are extracted from incoming spoken questions and used, along with machine learning trained models, to identify an indexed text segment that includes the answer to the question. The text segment may then be rearranged or simply passed to a speech synthesizer so the answer may be spoken aloud to a user.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: November 26, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Arpit Mittal, Petra Elisabeth Holmes, Dianhuan Lin, Mihai Valentin Tablan
  • Publication number: 20190025909
    Abstract: Methods, systems, computer-readable media, and apparatuses for selecting an Augmented Reality (AR) object on a head mounted device (HMD) are presented. In some embodiments, an HMD may define a Region-of-Interest (ROI) based on a gesture formed by at least one hand of a user. Subsequently the HMD may display to the user a shape on the HMD. In at least one arrangement, the shape outlines the ROI. Additionally, the HMD may display to the user a plurality of AR objects, each of the plurality of AR objects being associated with a target inside the ROI. Furthermore, the HMD may reduce the size of the ROI based on a first movement of the at least one hand of the user to form a reduced-sized ROI. In at least one arrangement, the reduced-sized ROI is used to select a specific AR object from the plurality of AR objects.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 24, 2019
    Inventors: Arpit Mittal, Giuliano Maciocci, Michael Tunmer, Paul Mabbutt
  • Patent number: 10133342
    Abstract: Methods, systems, computer-readable media, and apparatuses for selecting an Augmented Reality (AR) object on a head mounted device (HMD) are presented. In some embodiments, an HMD may define a Region-of-Interest (ROI) based on a gesture formed by at least one hand of a user. Subsequently the HMD may display to the user a shape on the HMD. In at least one arrangement, the shape outlines the ROI. Additionally, the HMD may display to the user a plurality of AR objects, each of the plurality of AR objects being associated with a target inside the ROI. Furthermore, the HMD may reduce the size of the ROI based on a first movement of the at least one hand of the user to form a reduced-sized ROI. In at least one arrangement, the reduced-sized ROI is used to select a specific AR object from the plurality of AR objects.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Arpit Mittal, Giuliano Maciocci, Michael L. Tunmer, Paul Mabbutt
  • Patent number: 10061331
    Abstract: In one embodiment, a method of temperature control comprises receiving temperature readings from a temperature sensor on a chip, calculating one or more second derivatives of temperature with respect to time based on the temperature readings, and determining whether to perform temperature mitigation on the chip based on the one or more calculated second derivatives of temperature.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: August 28, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mehdi Saeidi, Rajat Mittal, Arpit Mittal, Ryan Michael Coutts
  • Patent number: 9971368
    Abstract: In one embodiment, a temperature management system comprises a plurality of temperature sensors on a chip, and a temperature manager. The temperature manager is configured to receive a plurality of temperature readings from the temperature sensors, to determine a plurality of power values based on the temperature readings, to determine a plurality of temperature values based on the determined power values, the determined temperature values corresponding to a plurality of different locations on the chip, and to estimate a temperature of a hotspot on the chip based on the determined temperature values.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: May 15, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Rajat Mittal, Mehdi Saeidi, Arpit Mittal, Emil Rahim
  • Patent number: 9930769
    Abstract: Metal thermal grounds are used for dissipating heat from integrated-circuit resistors. The resistors may be formed using a front end of line layer, for example, a titanium-nitride layer. A metal region (e.g., in a first metal layer) is located over the resistors to form a heat sink. An area of thermal posts connected to the metal region is also located over the resistor. The metal region can be connected to the substrate of the integrated circuit to provide a low impedance thermal path out of the integrated circuit.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: March 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Arpit Mittal, Alvin Leng Sun Loke, Mehdi Saeidi, Patrick Drennan
  • Patent number: 9746889
    Abstract: A package-on-package (PoP) device includes a first package, a second package, and a bi-directional thermal electric cooler (TEC). The first package includes a first substrate and a first die coupled to the first substrate. The second package is coupled to the first package. The second package includes a second substrate and a second die coupled to the second substrate. The TEC is located between the first die and the second substrate. The TEC is adapted to dynamically dissipate heat back and forth between the first package and the second package. The TEC is adapted to dissipate heat from the first die to the second die in a first time period. The TEC is further adapted to dissipate heat from the second die to the first die in a second time period. The TEC is adapted to dissipate heat from the first die to the second die through the second substrate.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: August 29, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Rajat Mittal, Hee Jun Park, Peng Wang, Mehdi Saeidi, Arpit Mittal
  • Publication number: 20170168514
    Abstract: In one embodiment, a temperature management system comprises a plurality of temperature sensors on a chip, and a temperature manager. The temperature manager is configured to receive a plurality of temperature readings from the temperature sensors, to determine a plurality of power values based on the temperature readings, to determine a plurality of temperature values based on the determined power values, the determined temperature values corresponding to a plurality of different locations on the chip, and to estimate a temperature of a hotspot on the chip based on the determined temperature values.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 15, 2017
    Inventors: Rajat Mittal, Mehdi Saeidi, Arpit Mittal, Emil Rahim