Patents by Inventor David A. Secker

David A. Secker 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: 20250158519
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 15, 2025
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Publication number: 20250131953
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Application
    Filed: October 9, 2024
    Publication date: April 24, 2025
    Applicant: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Publication number: 20250103531
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Application
    Filed: October 17, 2024
    Publication date: March 27, 2025
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 12147367
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: November 19, 2024
    Assignee: RAMBUS INC.
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 12142348
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: November 12, 2024
    Assignee: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Publication number: 20240220141
    Abstract: Described are memory modules that include address-buffer components and data-buffer components that together support wide- and narrow-data modes. The address-buffer component manages communication between a memory controller and two sets of memory components. In the wide-data mode, the address-buffer enables memory components in each set and instructs the data-buffer components to communicate full-width read and write data by combining data from or to from both sets for each memory access. In the narrow-data mode, the address-buffer enables memory components in just one of the two sets and instructs the data-buffer components to half-width read and write data with one set per memory access.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 4, 2024
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Publication number: 20240096387
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 21, 2024
    Applicant: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Patent number: 11907555
    Abstract: Described are memory modules that include address-buffer components and data-buffer components that together support wide- and narrow-data modes. The address-buffer component manages communication between a memory controller and two sets of memory components. In the wide-data mode, the address-buffer enables memory components in each set and instructs the data-buffer components to communicate full-width read and write data by combining data from or to from both sets for each memory access. In the narrow-data mode, the address-buffer enables memory components in just one of the two sets and instructs the data-buffer components to half-width read and write data with one set per memory access.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 20, 2024
    Assignee: Rambus Inc.
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Publication number: 20240020258
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Application
    Filed: July 20, 2023
    Publication date: January 18, 2024
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 11783879
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: October 10, 2023
    Assignee: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Publication number: 20230299668
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Patent number: 11755521
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: September 12, 2023
    Assignee: Rambus Inc.
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 11699949
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: July 11, 2023
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Publication number: 20230138512
    Abstract: Described are memory modules that include address-buffer components and data-buffer components that together support wide- and narrow-data modes. The address-buffer component manages communication between a memory controller and two sets of memory components. In the wide-data mode, the address-buffer enables memory components in each set and instructs the data-buffer components to communicate full-width read and write data by combining data from or to from both sets for each memory access. In the narrow-data mode, the address-buffer enables memory components in just one of the two sets and instructs the data-buffer components to half-width read and write data with one set per memory access.
    Type: Application
    Filed: November 18, 2022
    Publication date: May 4, 2023
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Publication number: 20220398206
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Application
    Filed: June 29, 2022
    Publication date: December 15, 2022
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 11520508
    Abstract: Described are memory modules that include address-buffer components and data-buffer components that together support wide- and narrow-data modes. The address-buffer component manages communication between a memory controller and two sets of memory components. In the wide-data mode, the address-buffer enables memory components in each set and instructs the data-buffer components to communicate full-width read and write data by combining data from or to from both sets for each memory access. In the narrow-data mode, the address-buffer enables memory components in just one of the two sets and instructs the data-buffer components to half-width read and write data with one set per memory access.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: December 6, 2022
    Assignee: Rambus Inc.
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Patent number: 11409682
    Abstract: A memory module comprises a data interface including a plurality of data lines and a plurality of configurable switches coupled between the data interface and a data path to one or more memories. The effective width of the memory module can be configured by enabling or disabling different subsets of the configurable switches. The configurable switches may be controlled by manual switches, by a buffer on the memory module, by an external memory controller, or by the memories on the memory module.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: August 9, 2022
    Assignee: Rambus Inc.
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 11398692
    Abstract: The connector portion of a flex connector may be integrated into a socket, by forming a complete cutout in the socket in which the connector is located, or by forming the socket with a portion having a reduced thickness relative to the rest of the socket, with the connector being positioned in this portion of reduced thickness between the socket and an MLB. Another flex connector may be formed vertically above the first flex connector, mounted to the top surface of the package and clamped in place by a heat sink on top of the stack. Providing both top and bottom flex connectors may multiply the number of available connections for a given footprint. A heatsink positioned on top of the stack may include a spring assembly on a bottom portion to engage specified portions of the stack with a predefined force to ensure correct loading.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: July 26, 2022
    Assignee: Apple Inc.
    Inventors: Mahesh S. Hardikar, David A. Secker, Rajasekaran Swaminathan, Ravindranath T. Kollipara, Robert R. Atkinson
  • Publication number: 20220172760
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Application
    Filed: November 19, 2021
    Publication date: June 2, 2022
    Applicant: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Publication number: 20220102884
    Abstract: The connector portion of a flex connector may be integrated into a socket, by forming a complete cutout in the socket in which the connector is located, or by forming the socket with a portion having a reduced thickness relative to the rest of the socket, with the connector being positioned in this portion of reduced thickness between the socket and an MLB. Another flex connector may be formed vertically above the first flex connector, mounted to the top surface of the package and clamped in place by a heat sink on top of the stack. Providing both top and bottom flex connectors may multiply the number of available connections for a given footprint. A heatsink positioned on top of the stack may include a spring assembly on a bottom portion to engage specified portions of the stack with a predefined force to ensure correct loading.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 31, 2022
    Inventors: MAHESH S. HARDIKAR, DAVID A. SECKER, RAJASEKARAN SWAMINATHAN, RAVINDRANATH T. KOLLIPARA, ROBERT R. ATKINSON