Patents by Inventor Wayne F. Ellis

Wayne F. Ellis 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: 11948619
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: April 2, 2024
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20230282266
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 7, 2023
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 11621030
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: April 4, 2023
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20220254407
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: January 4, 2022
    Publication date: August 11, 2022
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20220223224
    Abstract: The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit.
    Type: Application
    Filed: December 20, 2021
    Publication date: July 14, 2022
    Inventors: Yohan U. Frans, Wayne F. Ellis, Akash Bansal
  • Patent number: 11250901
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 15, 2022
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 11211139
    Abstract: The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 28, 2021
    Assignee: Rambus Inc.
    Inventors: Yohan U. Frans, Wayne F. Ellis, Akash Bansal
  • Publication number: 20210174865
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: November 24, 2020
    Publication date: June 10, 2021
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10878878
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 29, 2020
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20200312422
    Abstract: The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Inventors: Yohan U. Frans, Wayne F. Ellis, Akash Bansal
  • Publication number: 20200294577
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 17, 2020
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10672450
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 2, 2020
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10622053
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 14, 2020
    Assignee: Rambus inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10614869
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 7, 2020
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10600497
    Abstract: The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 24, 2020
    Assignee: Rambus Inc.
    Inventors: Yohan U. Frans, Wayne F. Ellis, Akash Bansal
  • Patent number: 10431290
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: October 1, 2019
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20190180813
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Publication number: 20190139598
    Abstract: In one embodiment, a memory device includes a memory core and input receivers to receive commands and data. The memory device also includes a register to store a value that indicates whether a subset of the input receivers are powered down in response to a control signal. A memory controller transmits commands and data to the memory device. The memory controller also transmits the value to indicate whether a subset of the input receivers of the memory device are powered down in response to the control signal. In addition, in response to a self-fresh command, the memory device defers entry into a self-refresh operation until receipt of the control signal that is received after receiving the self-refresh command.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10262718
    Abstract: In one embodiment, a memory device includes a clock receiver to receive a clock signal and a plurality of mode registers to store parameter information associated with a plurality of operating clock frequencies of the clock signal. The plurality of clock frequencies include a first clock frequency and a second clock frequency. The memory device also includes a command interface to receive commands synchronously with respect to the clock signal. The command interface receives a command that instructs the DRAM device to change operation from the first clock frequency to the second clock frequency.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 16, 2019
    Assignee: Rambus Inc.
    Inventors: Wayne F. Ellis, Wayne S. Richardson, Akash Bansal, Frederick A. Ware, Lawrence Lai, Kishore Ven Kasamsetty
  • Patent number: 10198314
    Abstract: A memory device is disclosed that includes a row of storage locations to store a data word, and a spare row element. The data word is encoded via an error code for generating error information for correcting X bit errors or detecting Y bit errors, where Y is greater than X. The spare row element has substitute storage locations. The logic is responsive to detected errors to (1) enable correction of a data word based on the error information where there are no more than X bit errors, and (2) substitute the spare row element for a portion of the row where there are at least Y bit errors in the data word.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 5, 2019
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Suresh Rajan, Brent Haukness, Scott C. Best, Wayne F. Ellis