Patents by Inventor Chad A. Bellows

Chad A. Bellows 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: 20230376249
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Application
    Filed: June 23, 2023
    Publication date: November 23, 2023
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 11797227
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 24, 2023
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Publication number: 20190339908
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 7, 2019
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 10331379
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: June 25, 2019
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Publication number: 20170286017
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 5, 2017
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 9652176
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 16, 2017
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 9292223
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 22, 2016
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 8908466
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 9, 2014
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Publication number: 20140344546
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Publication number: 20140003131
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Application
    Filed: April 11, 2013
    Publication date: January 2, 2014
    Applicant: RAMBUS INC.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Patent number: 8595459
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: November 26, 2013
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Publication number: 20130265842
    Abstract: A micro-threaded memory device. A plurality of storage banks are provided, each including a plurality of rows of storage cells and having an access restriction in that at least a minimum access time interval must transpire between successive accesses to a given row of the storage cells. Transfer control circuitry is provided to transfer a first amount of data between the plurality of storage banks and an external signal path in response to a first memory access request, the first amount of data being less than a product of the external signal path bandwidth and the minimum access time interval.
    Type: Application
    Filed: May 23, 2013
    Publication date: October 10, 2013
    Inventors: Frederick A. Ware, Craig E. Hampel, Wayne S. Richardson, Chad A. Bellows, Lawrence Lai
  • Patent number: 8432766
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 30, 2013
    Assignee: RAMBUS Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Publication number: 20120170399
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Application
    Filed: March 1, 2012
    Publication date: July 5, 2012
    Applicant: RAMBUS INC.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Patent number: 8190808
    Abstract: A memory system includes logical banks divided into sub-banks or collections of sub-banks. The memory system responds to memory-access requests (e.g., read and write) directed to a given logical bank by sequentially accessing sub-banks or collections of sub-banks. Sequential access reduces the impact of power-supply spikes induced by memory operations, and thus facilitates improved system performance. Some embodiments of the memory system combine sequential sub-bank access with other performance-enhancing features, such as wider power buses or increased bypass capacitance, to further enhance performance.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: May 29, 2012
    Assignee: Rambus Inc.
    Inventors: Lawrence Lai, Wayne S. Richardson, Chad A. Bellows
  • Patent number: 8154947
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 10, 2012
    Assignee: RAMBUS Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Publication number: 20120020178
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 26, 2012
    Applicant: RAMBUS INC.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Patent number: 8050134
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: November 1, 2011
    Assignee: RAMBUS Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Publication number: 20110153932
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Application
    Filed: February 2, 2011
    Publication date: June 23, 2011
    Applicant: RAMBUS INC.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Patent number: 7907470
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: March 15, 2011
    Assignee: RAMBUS Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson