Patents by Inventor Paul William Hollis

Paul William Hollis 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: 8296526
    Abstract: An apparatus includes a first processor that accesses memory according to a first clock frequency, a second processor that accesses memory according to a second clock frequency, and a memory device is configurable to selectively operate according to the first clock frequency or the second clock frequency. A memory controller enables dynamic configuration of organization of the memory device to allow a first portion of the memory device to be accessed by the first processor according to the first clock frequency and a second portion of the memory device to be accessed by the second processor according to the second clock frequency.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 23, 2012
    Assignee: MediaTek, Inc.
    Inventors: Kari Ann O'Brien, George Lattimore, Joern Soersensen, Matthew B Rutledge, Paul William Hollis
  • Patent number: 8164971
    Abstract: A dual power rail word line driver for driving a word line of a memory array according to a predecode signal from a decoder powered by a first supply voltage is provided. A signal buffering unit is coupled between the word line and a node. A pull-down unit is coupled between the node and a ground. A pull-up unit is coupled between the node and a second supply voltage higher than or equal to the first supply voltage. The signal buffering unit provides a word line signal corresponding to the predecode signal to the memory array via the word line when the pull-down unit is turned on by the predecode signal and a first pulse signal and the pull-up unit is turned off by a second pulse signal. There is no level shifter on a critical timing path of the dual power rail word line driver.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: April 24, 2012
    Assignee: Mediatek Inc.
    Inventors: Chia-Wei Wang, Joseph Patrick Geisler, Paul William Hollis, Matthew B Rutledge
  • Publication number: 20100325368
    Abstract: An apparatus includes a first processor that accesses memory according to a first clock frequency, a second processor that accesses memory according to a second clock frequency, and a memory device is configurable to selectively operate according to the first clock frequency or the second clock frequency. A memory controller enables dynamic configuration of organization of the memory device to allow a first portion of the memory device to be accessed by the first processor according to the first clock frequency and a second portion of the memory device to be accessed by the second processor according to the second clock frequency.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 23, 2010
    Applicant: Media Tek, Inc.
    Inventors: Kari Ann O'Brien, George Lattimore, Joern Soerensen, Mathew B. Rutledge, Paul William Hollis
  • Publication number: 20100302880
    Abstract: A dual power rail word line driver for driving a word line of a memory array according to a predecode signal from a decoder powered by a first supply voltage is provided. A signal buffering unit is coupled between the word line and a node. A pull-down unit is coupled between the node and a ground. A pull-up unit is coupled between the node and a second supply voltage higher than or equal to the first supply voltage. The signal buffering unit provides a word line signal corresponding to the predecode signal to the memory array via the word line when the pull-down unit is turned on by the predecode signal and a first pulse signal and the pull-up unit is turned off by a second pulse signal. There is no level shifter on a critical timing path of the dual power rail word line driver.
    Type: Application
    Filed: March 8, 2010
    Publication date: December 2, 2010
    Applicant: MEDIATEK INC.
    Inventors: Chia-Wei Wang, Joseph Patrick Geisler, Paul William Hollis, Matthew B. Rutledge
  • Patent number: 5828612
    Abstract: A method and circuit for optimally controlling memory array bit line precharge timing to increase memory frequency of operation by generating a precharge output (110) for memory array bit lines in response to the earliest asserted control input among precharge control inputs. A write precharge signal (218) early enables a write precharge operation by enabling the precharge signal (110) a delayed period after an enabling falling dock edge of clock (104), as indicated by a write precharge enable signal (210), and during a write cycle, as indicated by a write precharge trigger (212). Thereafter, a default precharge trigger (216) is enabled to ensure that write precharging operation continues for an extended and optimal duration. A read precharge trigger (214) enables precharging after a read operation by enabling the precharge signal (110) in close proximity to the disabling of read sense amplifiers within the memory array to enhance post-read precharging.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: October 27, 1998
    Assignee: Motorola, Inc.
    Inventors: Ruey J. Yu, Paul William Hollis, Renny Lee Eisele