Patents by Inventor Fred John Towler

Fred John Towler 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: 7613050
    Abstract: A design structure comprising an apparatus which reduces the power in memory devices in general and, in particular, static random access memory (SRAM) arrays featuring sense amplifier assist (SAA) circuitry. The design structure limits the implementation of the SAA circuitry to SRAM array blocks that do not meet the application voltage requirements.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: November 3, 2009
    Assignee: International Business Machines Corporation
    Inventors: George Maria Braceras, Harold Pilo, Fred John Towler
  • Patent number: 6834003
    Abstract: A Content Addressable Memory (CAM) cell with PFET passgate SRAM cells which results in a smaller cell size because of the more balanced number of 8 PFET devices and 8 NFET devices. The PFET passgates allow the size of the SRAM cell pulldown devices to be reduced, and lower the power dissipation in the SRAM during standby or during read/write.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: December 21, 2004
    Assignee: International Business Machines Corporation
    Inventors: Fred John Towler, Robert C. Wong
  • Publication number: 20040100810
    Abstract: A Content Addressable Memory (CAM) cell with PFET passgate SRAM cells which results in a smaller cell size because of the more balanced number of 8 PFET devices and 8 NFET devices. The PFET passgates allow the size of the SRAM cell pulldown devices to be reduced, and lower the power dissipation in the SRAM during standby or during read/write.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Applicant: International Business Machines Corporation
    Inventors: Fred John Towler, Robert C. Wong
  • Patent number: 5802070
    Abstract: A method of testing a first memory such as a RAM having data storage at a plurality of individually addressable storage locations is provided. A portion of the address for the addressable locations of the first memory is supplied as an output from a second memory such as a CAM. The second memory includes a decoder to provide a decoded address as input signals to the second memory. During the testing, first memory specific addresses are provided to the decoder as input. These first memory specific addresses are decoded by the decoder and are gated as input signals to address the first memory. In this way, the decoder which in normal operation provides decoded input signals to the CAM is used to provide input signals to the RAM, thus obviating the need for any scan chain latches surrounding the RAM. This enables conventional testing apparatus to provide the necessary test protocol for the RAM through the decoder normally used by the CAM.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: September 1, 1998
    Assignee: International Business Machines Corporation
    Inventors: Robert Dean Adams, Kevin Arthur Batson, George Maria Braceras, Fred John Towler