Patents by Inventor Ravindranath Kollipara

Ravindranath Kollipara 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: 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: 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
  • 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: 11106542
    Abstract: Described is memory system enabling memory mirroring in single write operations for the primary and backup data storage. The memory system utilizes a memory channel including one or more latency groups, with each latency group encompassing a number of memory modules that have the same signal timing to the controller. A primary copy and a backup copy of a data element can be written to two memory modules in the same latency group of the channel and in a single write operation. The buses of the channel may have the same trace length to each of the memory modules within a latency group.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: August 31, 2021
    Assignee: Rambus, Inc.
    Inventors: Steven Woo, David A. Secker, Ravindranath Kollipara
  • Publication number: 20210124703
    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: November 17, 2020
    Publication date: April 29, 2021
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 10866916
    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 29, 2019
    Date of Patent: December 15, 2020
    Assignee: Rambus Inc.
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Publication number: 20200348870
    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: May 21, 2020
    Publication date: November 5, 2020
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Patent number: 10678459
    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: July 14, 2016
    Date of Patent: June 9, 2020
    Assignee: Rambus Inc.
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Publication number: 20200110671
    Abstract: Described is memory system enabling memory mirroring in single write operations for the primary and backup data storage. The memory system utilizes a memory channel including one or more latency groups, with each latency group encompassing a number of memory modules that have the same signal timing to the controller. A primary copy and a backup copy of a data element can be written to two memory modules in the same latency group of the channel and in a single write operation. The buses of the channel may have the same trace length to each of the memory modules within a latency group.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 9, 2020
    Inventors: Steven Woo, David A. Secker, Ravindranath Kollipara
  • Publication number: 20200026677
    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 29, 2019
    Publication date: January 23, 2020
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 10437685
    Abstract: Described is memory system enabling memory mirroring in single write operations for the primary and backup data storage. The memory system utilizes a memory channel including one or more latency groups, with each latency group encompassing a number of memory modules that have the same signal timing to the controller. A primary copy and a backup copy of a data element can be written to two memory modules in the same latency group of the channel and in a single write operation. The buses of the channel may have the same trace length to each of the memory modules within a latency group.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 8, 2019
    Assignee: Rambus Inc.
    Inventors: Steven Woo, David A. Secker, Ravindranath Kollipara
  • Patent number: 10380053
    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: October 10, 2016
    Date of Patent: August 13, 2019
    Assignee: Rambus Inc.
    Inventors: Amir Amirkhany, Suresh Rajan, Ravindranath Kollipara, Ian Shaeffer, David A. Secker
  • Patent number: 10255220
    Abstract: System and method for dynamic termination control to enable use of an increased number of memory modules on a single channel. In some embodiments, six or eight DIMMs are coupled to a single channel. The dynamic termination scheme can include configurations for input bus termination (IBT) on each of the memory modules for the address bus/command bus and configurations for on-die termination (ODT) one each of the memory modules for the data bus.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 9, 2019
    Assignee: Rambus Inc.
    Inventors: Chi-Ming Yeung, David Secker, Ravindranath Kollipara, Shajith Musaliar Sirajudeen, Yoshie Nakabayashi
  • Publication number: 20180285013
    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: July 14, 2016
    Publication date: October 4, 2018
    Inventors: Suresh Rajan, Abhijit M. Abhyankar, Ravindranath Kollipara, David A. Secker
  • Publication number: 20180089035
    Abstract: Described is memory system enabling memory minoring in single write operations for the primary and backup data storage. The memory system utilizes a memory channel including one or more latency groups, with each latency group encompassing a number of memory modules that have the same signal timing to the controller. A primary copy and a backup copy of a data element can be written to two memory modules in the same latency group of the channel and in a single write operation. The buses of the channel may have the same trace length to each of the memory modules within a latency group.
    Type: Application
    Filed: October 13, 2017
    Publication date: March 29, 2018
    Inventors: Steven Woo, David A. Secker, Ravindranath Kollipara
  • Patent number: 9804931
    Abstract: Memory system enabling memory mirroring in single write operations for the primary and backup data storage. The memory system utilizes a memory channel including one or more latency groups, with each latency group encompassing a number of memory modules that have the same signal timing to the controller. A primary copy and a backup copy of a data element can be written to two memory modules in the same latency group of the channel and in a single write operation. The buses of the channel may have the same trace length to each of the memory modules within a latency group.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 31, 2017
    Assignee: Rambus Inc.
    Inventors: Steven Woo, David Secker, Ravindranath Kollipara