Patents by Inventor Sam Bagwell

Sam Bagwell 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).

  • In-pixel correlated double sampling with fold-over detection
    Patent number: 10027917
    Abstract: Disclosed herein are improved in-pixel correlated double sampling elements for photodetectors. The novel circuits and associated methods of the invention allow for accurate correlated double sampling while avoiding the inherent sampling errors that may occur in prior art in-pixel correlated double sampling techniques when bright or saturating signals are received.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: July 17, 2018
    Assignee: Forza Silicon Corporation
    Inventors: Jonathan Bergey, Sam Bagwell
  • Method for reading out multiple SRAM blocks with different column sizing in stitched CMOS image senor
    Patent number: 9754989
    Abstract: A stitched image sensor array on a semiconductor substrate with identical blocks that have wherein said first configuration includes enable inputs, which vary a function of the block depending on the connection to the enable inputs. The enable inputs can set an SRAM to receive different numbers of inputs.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 5, 2017
    Inventors: Steven Huang, Christophe Ca Basset, Sam Bagwell, Jonathan Bergey, Loc Truong
  • Pixel with switchable high gain and high capacity modes
    Patent number: 9686483
    Abstract: Provided herein is a novel pixel circuit for image sensors such as IR ROIC image sensors. The design provides a switchable pixel with two modes. In the first mode, the pixel performs in-pixel correlated double sampling to remove reset noise. In the second mode, the pixel is configured in a high-capacity mode to avoid saturation. The pixel may be dynamically switched between modes, for example in response to lighting conditions in the scene to be imaged.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 20, 2017
    Assignee: Forza Silicon, Inc.
    Inventors: Sam Bagwell, Jonathan Bergey, David Estrada
  • Pixel with Switchable High Gain and High Capacity Modes
    Publication number: 20160198101
    Abstract: Provided herein is a novel pixel circuit for image sensors such as IR ROIC image sensors. The design provides a switchable pixel with two modes. In the first mode, the pixel performs in-pixel correlated double sampling to remove reset noise. In the second mode, the pixel is configured in a high-capacity mode to avoid saturation. The pixel may be dynamically switched between modes, for example in response to lighting conditions in the scene to be imaged.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 7, 2016
    Inventors: Sam Bagwell, Jonathan Bergey, David Estrada
  • In-Pixel Correlated Double Sampling with Fold-over Detection
    Publication number: 20160100114
    Abstract: Disclosed herein are improved in-pixel correlated double sampling elements for photodetectors. The novel circuits and associated methods of the invention allow for accurate correlated double sampling while avoiding the inherent sampling errors that may occur in prior art in-pixel correlated double sampling techniques when bright or saturating signals are received.
    Type: Application
    Filed: October 5, 2015
    Publication date: April 7, 2016
    Inventors: Jonathan Bergey, Sam Bagwell
  • Programmable global shutter timing to mitigate transient glitching
    Patent number: 9007500
    Abstract: An image sensor system using a circuit that automatically provides a multiple point output which represents, in a first mode, each of the multiple points receiving outputs at substantially the same time delayed only by a transit time across a wire connecting the multiple point outputs, and in a second mode, each of the multiple points producing outputs that are delayed by a delay time, where each output is delayed relative to each other output by said delay time in the second mode.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: April 14, 2015
    Assignee: Forza Silicon Corporation
    Inventors: David Estrada, Sam Bagwell, Loc Truong
  • Programmable Global Shutter Timing to Mitigate Transient Glitching
    Publication number: 20140061435
    Abstract: An image sensor system using a circuit that automatically provides a multiple point output which represents, in a first mode, each of the multiple points receiving outputs at substantially the same time delayed only by a transit time across a wire connecting the multiple point outputs, and in a second mode, each of the multiple points producing outputs that are delayed by a delay time, where each output is delayed relative to each other output by said delay time in the second mode.
    Type: Application
    Filed: July 24, 2013
    Publication date: March 6, 2014
    Applicant: FORZA SILICON CORPORATION
    Inventors: David Estrada, Sam Bagwell, Loc Truong
  • Method for Reading Out Multiple SRAM Blocks With Different Column Sizing In Stitched CMOS Image Senor
    Publication number: 20130334401
    Abstract: A stitched image sensor array on a semiconductor substrate with identical blocks that have wherein said first configuration includes enable inputs, which vary a function of the block depending on the connection to the enable inputs. The enable inputs can set an SRAM to receive different numbers of inputs.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 19, 2013
    Applicant: FORZA SILICON CORPORATION
    Inventors: Steven Huang, Christophe Ca Basset, Sam Bagwell, Jonathan Bergey, Loc Truong