Patents by Inventor Harish N. Venkata

Harish N. Venkata 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).

  • Patent number: 11442872
    Abstract: Techniques described herein are related to protecting at least a portion of data stored in a memory array. A method may include detecting an invalid memory access request based at least in part on the secret key and the identifier and preventing unauthorized access of a memory array by halting an internal refresh of one or more memory cells associated with the memory array in response to detecting the invalid memory access request.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: September 13, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Harish N. Venkata
  • Patent number: 11132142
    Abstract: A memory device may include a first wordline and a second wordline, each having multiple memory cells. The memory device may also include control circuitry to facilitate writing a data pattern to the memory cells of the first wordline and facilitate copying the data pattern from the first wordline to the second wordline. Copying the first wordline to the second wordline may include activating the second wordline such that the first wordline and the second wordline are simultaneously active. A memory cell of the first wordline may be written a data value of the data pattern, and the memory cell may drive, at least partially, a corresponding memory cell of the second wordline with the data value.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: September 28, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Byung S. Moon, Harish N. Venkata, Gary L. Howe, Myung Ho Bae
  • Patent number: 11087820
    Abstract: A memory device may include a memory array comprising at least two sections. Each of the sections may further include multiple memory cells. The memory device may also include one or more controllers designed to receive one or more commands to initiate writing logical data to the multiple memory cells of a first section and a second section. Additionally, the writing may alternate between the first section and the second section until the first section and second section have been entirely written with the logical data.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 10, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Yu-Feng Chen, Byung S. Moon, Myung Ho Bae, Harish N. Venkata
  • Patent number: 11031405
    Abstract: Various embodiments comprise methods and related apparatuses formed from those methods for placing at least portions of peripheral circuits under a DRAM memory array, where the peripheral circuits are used to control an operation of the DRAM memory array. In an embodiment, a memory apparatus includes a DRAM memory array and at least one peripheral circuit formed under the DRAM memory array, where the at least one peripheral circuit includes at least one circuit type selected from sense amplifiers and sub-word line drivers. Additional apparatuses and methods are also disclosed.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: June 8, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Mansour Fardad, Harish N. Venkata, Jeffrey Koelling
  • Patent number: 10971214
    Abstract: The present disclosure includes apparatuses and methods related to performing logic operations. An example apparatus comprises sensing circuitry including a sense amplifier and a compute component. A controller is coupled to the sensing circuitry and is configured to cause storing of a first operand in a first compute component storage location, transfer of the first operand to a second compute component storage location, and performance of a logical operation between the first operand in the second compute component storage location and a second operand sensed by the sense amplifier.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 6, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Harish N. Venkata, Daniel B. Penney
  • Publication number: 20210056045
    Abstract: Techniques described herein are related to protecting at least a portion of data stored in a memory array. A method may include detecting an invalid memory access request based at least in part on the secret key and the identifier and preventing unauthorized access of a memory array by halting an internal refresh of one or more memory cells associated with the memory array in response to detecting the invalid memory access request.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 25, 2021
    Inventor: Harish N. Venkata
  • Publication number: 20210019075
    Abstract: A memory device may include a first wordline and a second wordline, each having multiple memory cells. The memory device may also include control circuitry to facilitate writing a data pattern to the memory cells of the first wordline and facilitate copying the data pattern from the first wordline to the second wordline. Copying the first wordline to the second wordline may include activating the second wordline such that the first wordline and the second wordline are simultaneously active. A memory cell of the first wordline may be written a data value of the data pattern, and the memory cell may drive, at least partially, a corresponding memory cell of the second wordline with the data value.
    Type: Application
    Filed: October 5, 2020
    Publication date: January 21, 2021
    Inventors: Byung S. Moon, Harish N. Venkata, Gary L. Howe, Myung Ho Bae
  • Patent number: 10878876
    Abstract: Apparatuses and methods for providing power for memory refresh operations are described. An example apparatus includes refresh circuits, a power amplifier, a power circuit, and a power control circuits. The refresh circuits are configured to refresh memory cells of a memory bank. The power amplifier is configured to provide power when activated to the refresh circuits. The power provided by the power amplifier has a first voltage. The power circuit is configured to receive a power supply voltage and to provide power when activated to the refresh circuits. The power provided by the power amplifier has a second voltage. The power control circuit is configured to compare the first voltage and the target voltage and to provide an activation signal to control activation of the power circuit having an active duration based at least in part on the comparison.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 29, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Jason M. Brown, Harish N. Venkata
  • Patent number: 10878886
    Abstract: Devices and methods include, for a memory device, generating a main input-output line signal on a main input-output line using driving circuitry. The main input-output line is coupled to multiple sensing amplifiers. Each of the sensing amplifiers each locally generate a local data line from the main data line. Each of the sensing amplifiers also includes multiple local sensing amplifiers that are selectively coupled to the generated local data line for overwriting data in the respective local sensing amplifiers.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: December 29, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Harish N. Venkata
  • Patent number: 10854247
    Abstract: The present disclosure includes apparatuses and methods related to selectively performing logical operations. An example apparatus comprises sensing circuitry including a sense amplifier and a compute component. A controller is coupled to sensing circuitry and is configured to cause storing of an indication of whether a logical operation is to be selectively performed between an operand stored in the sensing circuitry and an operand stored in the sense amplifier.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: December 1, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Daniel B. Penney, Harish N. Venkata
  • Patent number: 10839870
    Abstract: The present disclosure includes apparatuses and methods related to storing a data value in a sensing circuitry element. An example method comprises sensing a first data value with a sense amplifier of a sensing circuitry element, moving a second data value from a first storage location of a compute component to a second storage location of the compute component, and storing, in the first storage location, a third data value resulting from a logical operation performed on the first data value and the second data value. The logical operation can be performed by logic circuitry of the sensing circuitry element.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: November 17, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Daniel B. Penney, Harish N. Venkata, Guy S. Perry
  • Patent number: 10825491
    Abstract: A memory device may include a memory array, which may also include, multiple memory cells. The memory device may also include one or more counters designed to generate internal memory addresses to sequentially access the memory cells and facilitate writing logical zeros to all of the memory cells.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 3, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Byung S. Moon, Gary L. Howe, Harish N. Venkata, David R. Brown
  • Patent number: 10811061
    Abstract: Memory devices may employ flip-flops with paired transistors in sense amplifying circuitry to sense charges stored in memory cells to perform read and/or activate operations. Sense amplifying circuitry may employ driving devices in driving circuitry to latch the read memory to a high or low voltage. Embodiments include systems and methods that facilitate reduced memory devices with faster memory cell restore by sharing the driving circuitry in different sense amplifying modules. Embodiments may employ switching circuitry in the sense amplifying circuitry to prevent unintentional or faulty readouts.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 20, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Harish N. Venkata
  • Patent number: 10795603
    Abstract: A memory device may include a memory array that includes multiple memory cells. The memory device may also include multiple sense amplifiers that, in operation, may each be connected to one or more memory cells. The sense amplifiers may be designed to assist in writing logical zeros to the multiple memory cells.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 6, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Byung S. Moon, Harish N. Venkata, Gary L. Howe, Myung Ho Bae
  • Patent number: 10789996
    Abstract: The present disclosure includes apparatuses and methods related to shifting data. An example apparatus comprises sensing circuitry including a sense amplifier and a compute component having a first storage location and a second storage location associated therewith. A controller is coupled to the sensing circuitry. The controller is configured to control an amount of power associated with shifting a data value stored in the first storage location to the second storage location by applying a charge sharing operation.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 29, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Daniel B. Penney, Harish N. Venkata, Guy S. Perry
  • Publication number: 20200219553
    Abstract: The present disclosure includes apparatuses and methods related to performing logic operations. An example apparatus comprises sensing circuitry including a sense amplifier and a compute component. A controller is coupled to the sensing circuitry and is configured to cause storing of a first operand in a first compute component storage location, transfer of the first operand to a second compute component storage location, and performance of a logical operation between the first operand in the second compute component storage location and a second operand sensed by the sense amplifier.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 9, 2020
    Inventors: Harish N. Venkata, Daniel B. Penney
  • Patent number: 10672496
    Abstract: A memory device may include a command controller and a memory array with multiple memory cells. The command controller may receive commands to write a data pattern to the memory cells of the memory array. The data pattern may be repeated across multiple cells of the memory array without further input from input/output data lines. Additionally, the memory device may include one or more counters to assist in accessing the memory cells of the memory array.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 2, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Joshua E. Alzheimer, Gary Howe, Harish N. Venkata
  • Publication number: 20200135260
    Abstract: Devices and methods include, for a memory device, generating a main input-output line signal on a main input-output line using driving circuitry. The main input-output line is coupled to multiple sensing amplifiers. Each of the sensing amplifiers each locally generate a local data line from the main data line. Each of the sensing amplifiers also includes multiple local sensing amplifiers that are selectively coupled to the generated local data line for overwriting data in the respective local sensing amplifiers.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventor: Harish N. Venkata
  • Publication number: 20200126599
    Abstract: Memory devices may have internal circuitry that employs voltages higher than voltages provided by an external power source. Charge pumps are DC/DC converters that may be used to generate, internally, higher voltages for operation. The number of available charge pumps in a memory device may be higher than the number used for certain memory operations. Gating circuitry may be used to selectively enable charge pump cores based on power demands that may be associated with a mode of operation and/or a command.
    Type: Application
    Filed: July 5, 2019
    Publication date: April 23, 2020
    Inventors: Harish N. Venkata, Yu-Feng Chen
  • Patent number: 10622031
    Abstract: Memory devices may have internal circuitry that employs voltages higher than voltages provided by an external power source. Charge pumps are DC/DC converters that may be used to generate, internally, higher voltages for operation. The number of available charge pumps in a memory device may be higher than the number used for certain memory operations. Gating circuitry may be used to selectively enable charge pump cores based on power demands that may be associated with a mode of operation and/or a command.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: April 14, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Harish N. Venkata, Yu-Feng Chen