Patents by Inventor Manuel F. Cabanas-Holmen

Manuel F. Cabanas-Holmen 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: 11601119
    Abstract: A flip-flop circuit comprises a pass gate, a feedback inverter, and an interleaved filter. The pass gate comprises a clock input and an inverting clock input. The feedback inverter includes a feedback input coupled to both the clock input and the inverting clock input of the pass gate. The interleaved filter comprises a delay circuit including a delay output, a C-gate element, and a blocking inverter. The C-gate element includes a C-gate input and a C-gate output. The C-gate input is coupled to the delay output of the delay circuit and the pass gate, and the C-gate output is coupled to the feedback input of the feedback inverter. The blocking inverter includes a blocking input and a blocking output. The blocking input is coupled to the delay output of the delay circuit, and the blocking output is coupled to the feedback input of the feedback inverter.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: March 7, 2023
    Assignee: THE BOEING COMPANY
    Inventors: Salim A. Rabaa, Ethan H. Cannon, Manuel F. Cabanas-Holmen
  • Publication number: 20220200585
    Abstract: A flip-flop circuit comprises a pass gate, a feedback inverter, and an interleaved filter. The pass gate comprises a clock input and an inverting clock input. The feedback inverter includes a feedback input coupled to both the clock input and the inverting clock input of the pass gate. The interleaved filter comprises a delay circuit including a delay output, a C-gate element, and a blocking inverter. The C-gate element includes a C-gate input and a C-gate output. The C-gate input is coupled to the delay output of the delay circuit and the pass gate, and the C-gate output is coupled to the feedback input of the feedback inverter. The blocking inverter includes a blocking input and a blocking output. The blocking input is coupled to the delay output of the delay circuit, and the blocking output is coupled to the feedback input of the feedback inverter.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Inventors: Salim A. Rabaa, Ethan H. Cannon, Manuel F. Cabanas-Holmen
  • Patent number: 11029355
    Abstract: A test structure for measuring static noise margin (SNM) for one or more static random access memory (SRAM) cells can include a first transistor gate (TG) and a second TG electrically coupled to each SRAM cell. In an implementation, an interconnect between an output of a first inverter and an input of a second inverter of the SRAM cell can be electrically disconnected using a cut off. During operation of the SRAM cell, internal storage nodes within the SRAM cell can be electrically coupled through the first TG and the second TG to, for example, external pins and to a test fixture. Electrical parameters such as voltage can be measured at the internal storage nodes through the external pins and used to calculate SNM of the SRAM cell.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: June 8, 2021
    Assignee: THE BOEING COMPANY
    Inventors: Mark Yao, Manuel F. Cabanas-Holmen, Ethan H. Cannon
  • Publication number: 20200319243
    Abstract: A test structure for measuring static noise margin (SNM) for one or more static random access memory (SRAM) cells can include a first transistor gate (TG) and a second TG electrically coupled to each SRAM cell. In an implementation, an interconnect between an output of a first inverter and an input of a second inverter of the SRAM cell can be electrically disconnected using a cut off. During operation of the SRAM cell, internal storage nodes within the SRAM cell can be electrically coupled through the first TG and the second TG to, for example, external pins and to a test fixture. Electrical parameters such as voltage can be measured at the internal storage nodes through the external pins and used to calculate SNM of the SRAM cell.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 8, 2020
    Inventors: Mark Yao, Manuel F. Cabanas-Holmen, Ethan H. Cannon
  • Patent number: 10705552
    Abstract: A self-optimizing circuit for a FD-SOI device includes a static biasing circuit, a dosimeter, a reference circuit, an amplifier, a voltage source, and a feedback circuit. The static biasing circuit supplies a first bias. The dosimeter includes a dosimeter FD-SOI device and generates a dosimeter voltage sensitive to parametric shifts in the primary FD-SOI device. The reference circuit supplies a reference voltage. The amplifier is coupled to the dosimeter and the reference circuit, and supplies a second bias at an output of the static biasing circuit, the second bias proportional to a difference between the dosimeter voltage and the reference voltage. The voltage source generates a drive voltage to which the first bias and the second bias are referenced. The feedback circuit regulates supply of the drive voltage to a well of the dosimeter FD-SOI device according to the first bias and the second bias.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 7, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Alfio Zanchi, Jeffrey Maharrey, Manuel F. Cabanas-Holmen, Roger Brees
  • Patent number: 9013219
    Abstract: A flip flop circuit has a first stage and a second stage. The first stage and the second stage each have interleaved filters.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 21, 2015
    Assignee: The Boeing Company
    Inventors: Manuel F. Cabanas-Holmen, Ethan Cannon, Salim A. Rabaa
  • Publication number: 20150070062
    Abstract: A flip flop circuit has a first stage and a second stage. The first stage and the second stage each have interleaved filters.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: The Boeing Company
    Inventors: Manuel F. Cabanas-Holmen, Ethan Cannon, Salim A. Rabaa
  • Patent number: 8754701
    Abstract: An interleaved filter circuit has a delay element configured to receive an input signal. An interleaved output buffer has a first input which receives the input signal and a second input which receives the output of the delay element. An output of the interleaved output buffer is driven when the first input and the second input are at a same logic level.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 17, 2014
    Assignee: The Boeing Company
    Inventors: Ethan Cannon, Manuel F. Cabanas-Holmen, Salim A. Rabaa
  • Patent number: 8207753
    Abstract: The different advantageous embodiments provide an integrated circuit comprising a number of latches and a number of filters. Each latch in the number of latches has a plurality of inputs and a plurality of storage nodes. The plurality of storage nodes includes a number of pairs of circuit nodes that form a number of upsettable circuit node pairs. Each input of the plurality of inputs is connected to a corresponding storage node in the plurality of storage nodes. Each filter in the number of filters has an input and a plurality of outputs. Each of the plurality of outputs is connected to a corresponding input of the plurality of inputs of a latch in the number of latches. Each filter in the number of filters is located between two circuit nodes forming an upsettable circuit node pair of the latch in the number of latches to increase critical node spacing.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 26, 2012
    Assignee: The Boeing Company
    Inventors: Manuel F. Cabanas-Holmen, Ethan H. Cannon, Salim A. Rabaa
  • Publication number: 20110309856
    Abstract: The different advantageous embodiments provide an integrated circuit comprising a number of latches and a number of filters. Each latch in the number of latches has a plurality of inputs and a plurality of storage nodes. The plurality of storage nodes includes a number of pairs of circuit nodes that form a number of upsettable circuit node pairs. Each input of the plurality of inputs is connected to a corresponding storage node in the plurality of storage nodes. Each filter in the number of filters has an input and a plurality of outputs. Each of the plurality of outputs is connected to a corresponding input of the plurality of inputs of a latch in the number of latches. Each filter in the number of filters is located between two circuit nodes forming an upsettable circuit node pair of the latch in the number of latches to increase critical node spacing.
    Type: Application
    Filed: January 27, 2011
    Publication date: December 22, 2011
    Applicant: THE BOEING COMPANY
    Inventors: Manuel F. Cabanas-Holmen, Ethan H. Cannon, Salim A. Rabaa
  • Patent number: 8054099
    Abstract: The different advantageous embodiments provide an integrated circuit comprising a number of latches and a number of filters. Each latch in the number of latches has a plurality of inputs and a plurality of storage nodes. The plurality of storage nodes includes a number of pairs of circuit nodes that form a number of upsettable circuit node pairs. Each input of the plurality of inputs is connected to a corresponding storage node in the plurality of storage nodes. Each filter in the number of filters has an input and a plurality of outputs. Each of the plurality of outputs is connected to a corresponding input of the plurality of inputs of a latch in the number of latches. Each filter in the number of filters is located between two circuit nodes forming an upsettable circuit node pair of the latch in the number of latches to increase critical node spacing.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 8, 2011
    Assignee: The Boeing Company
    Inventors: Manuel F. Cabanas-Holmen, Ethan H. Cannon, Salim A. Rabaa
  • Publication number: 20110025372
    Abstract: The different advantageous embodiments provide an integrated circuit comprising a number of latches and a number of filters. Each latch in the number of latches has a plurality of inputs and a plurality of storage nodes. The plurality of storage nodes includes a number of pairs of circuit nodes that form a number of upsettable circuit node pairs. Each input of the plurality of inputs is connected to a corresponding storage node in the plurality of storage nodes. Each filter in the number of filters has an input and a plurality of outputs. Each of the plurality of outputs is connected to a corresponding input of the plurality of inputs of a latch in the number of latches. Each filter in the number of filters is located between two circuit nodes forming an upsettable circuit node pair of the latch in the number of latches to increase critical node spacing.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: THE BOEING COMPANY
    Inventors: Manuel F. Cabanas-Holmen, Ethan H. Cannon, Salim A. Rabaa