Patents by Inventor Christopher Parks

Christopher Parks 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: 8717476
    Abstract: A method for reading out an image signal includes providing at least two photosensitive regions and providing at least two transfer gates respectively associated with each photosensitive region. The method also includes providing a common charge-to-voltage conversion region electrically connected to the transfer gates and providing a reset mechanism that resets the common charge-to-voltage conversion region. After transferring charge from at least one of the photo-sensitive regions, all the transfer gates are disabled at a first time. The method further includes enabling at least one transfer gate at a subsequent second time and transferring charge from at least one of the photosensitive regions at a subsequent third time while the at least one transfer gate from the second time remains enabled.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: May 6, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Christopher Parks, John T. Compton
  • Publication number: 20140114747
    Abstract: Methods, systems, and apparatus for analyzing aggregate ratio metric changes are provided. The method includes storing a plurality of metrics in a memory device, identifying a first measurement of a ratio metric for a first time period and a second measurement of the ratio metric for a second time period from the plurality of metrics stored in the memory device, wherein a change has occurred in the ratio metric between the first time period and the second time period, identifying at least one component associated with the change, determining, using a computer device, at least one component vector corresponding to the at least one component, using the computer device to convert each of the at least one component vectors into a scalar, and identifying a percentage of change for each of the scalars.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Applicant: Google Inc.
    Inventors: Christopher Park Mah, William Dennis Kunz
  • Publication number: 20140049676
    Abstract: In various embodiments, image-capture methods include a mode in which an image is acquired via charge accumulation in multiple regions of an imaging array and read out to one or more outputs, and/or a mode in which an image is acquired via charge accumulation in a first region of an imaging array, held in vertical CCDs of another region of the imaging array, and read out along with a second image acquired via charge accumulation in the first region of the imaging array.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 20, 2014
    Inventors: Christopher Parks, Keith Wetzel
  • Patent number: 8643758
    Abstract: An image sensor includes a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array. A non-destructive sense node is connected to an output of the horizontal shift register. A charge directing switch is electrically connected to the non-destructive sense node. The charge directing switch includes two outputs. A charge multiplying horizontal shift register is electrically connected to one output of the charge directing switch. A discharging element is connected to the other output of the charge directing switch.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: February 4, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventor: Christopher Parks
  • Publication number: 20140000093
    Abstract: A method for producing an image sensor includes providing a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array. A non-destructive sense node is provided that is connected to an output of the horizontal shift register. A charge directing switch is provided that is electrically connected to the non-destructive sense node. The charge directing switch includes first and second outputs. A charge multiplying horizontal shift register is provided that is electrically connected to the first output of the charge directing switch. A bypass horizontal shift register or an amplifier is provided that is connected to the second output of the charge directing switch.
    Type: Application
    Filed: June 14, 2013
    Publication date: January 2, 2014
    Applicant: Truesense Imaging, Inc.
    Inventor: Christopher Parks
  • Patent number: 8601674
    Abstract: A method for producing an image sensor includes: providing a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array; providing a non-destructive sense node connected to an output of the horizontal shift register; providing a charge directing switch electrically connected to the non-destructive sense node, where the charge directing switch includes first and second outputs; providing a charge multiplying horizontal shift register electrically connected to the first output of the charge directing switch; and providing a discharging element connected to the second output of the charge directing switch.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: December 10, 2013
    Assignee: OmniVision Technologies, Inc.
    Inventor: Christopher Parks
  • Publication number: 20130307150
    Abstract: A structure with improved electromigration resistance and methods for making the same. A structure having improved electromigration resistance includes a bulk interconnect having a dual layer cap and a dielectric capping layer. The dual layer cap includes a bottom metallic portion and a top metal oxide portion. Preferably the metal oxide portion is MnO or MnSiO and the metallic portion is Mn or CuMn. The structure is created by doping the interconnect with an impurity (Mn in the preferred embodiment), and then creating lattice defects at a top portion of the interconnect. The defects drive increased impurity migration to the top surface of the interconnect. When the dielectric capping layer is formed, a portion reacts with the segregated impurities, thus forming the dual layer cap on the interconnect. Lattice defects at the Cu surface can be created by plasma treatment, ion implantation, a compressive film, or other means.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel C. Edelstein, Takeshi Nogami, Christopher Parks, Tsong-Lin Tai
  • Patent number: 8553126
    Abstract: An image sensor includes a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array. A non-destructive sense node is connected to an output of the horizontal shift register. A charge directing switch is electrically connected to the non-destructive sense node. The charge directing switch includes two outputs. A charge multiplying horizontal shift register is electrically connected to one output of the charge directing switch. A bypass horizontal shift register or an amplifier can be connected to the other output of the charge directing switch.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 8, 2013
    Assignee: Truesense Imaging, Inc.
    Inventor: Christopher Parks
  • Publication number: 20130218013
    Abstract: An ultrasound medical system includes an interstitial end effector. The interstitial end effector is interstitially insertable into patient tissue, includes at least one medical-treatment ultrasound transducer, and includes at least one end-effector-tissue-track ablation device. One method for ultrasonically treating a lesion in a patient includes the steps of obtaining the interstitial end effector and inserting it into the patient creating a tissue track which is surrounded by patient tissue and which ends at the distal end of the inserted interstitial end effector. Other steps include ultrasonically ablating the lesion using the at-least-one medical-treatment ultrasound transducer, using the at-least-one end-effector-tissue-track ablation device to ablate the patient tissue surrounding the tissue track along substantially the entire tissue track, and withdrawing the end effector from the patient.
    Type: Application
    Filed: January 28, 2013
    Publication date: August 22, 2013
    Inventors: Peter Barthe, Michael Slayton, Paul Jaeger, Douglas Mast, Inder Makin, Brian OConner, Jeffery Messerly, Waseem Faidi, Megan Runk, Christopher Park
  • Patent number: 8493491
    Abstract: Charge packets are transferred from a pixel array in an image sensor to a horizontal shift register. Each charge packet is shifted to a non-destructive sense node. Each charge packet is non-destructively sensed and a signal representative of a number of charge carriers in the charge packet is produced. Respective charge packets are directed to a charge multiplying output channel when the signal representative of the number of charge carriers in each charge packet indicates the charge packet will not saturate the charge multiplying horizontal shift register. Respective charge packets are directed to a charge bypass output channel or an amplifier when the signal representative of the number of charge carriers in each charge packet indicates the charge packet will saturate the charge multiplying horizontal shift register.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 23, 2013
    Assignee: Truesense Imaging, Inc.
    Inventor: Christopher Parks
  • Patent number: 8493492
    Abstract: An image sensor includes multiple output channels, a non-destructive charge sensing output channel having an associated gain value of G1 and a charge multiplying output channel having an associated gain value G3. The image sensor can also include a charge bypass output channel having an associated gain value G2. For each charge packet, a pixel signal produced by either the charge sensing output channel, the charge multiplying output channel or the charge bypass output channel is selected. If the pixel signal produced by the charge sensing output channel is selected, a gain factor (G3/G1) is applied to each pixel signal selected from the charge bypass output channel. If the pixel signal produced by the charge bypass output channel is selected, a gain factor (G3/G2) is applied to each pixel signal selected from the charge bypass output channel. The pixel signals are combined to produce an image.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 23, 2013
    Assignee: Truesense Imaging, Inc.
    Inventor: Christopher Parks
  • Patent number: 8479374
    Abstract: A method for producing an image sensor includes providing a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array. A non-destructive sense node is provided that is connected to an output of the horizontal shift register. A charge directing switch is provided that is electrically connected to the non-destructive sense node. The charge directing switch includes first and second outputs. A charge multiplying horizontal shift register is provided that is electrically connected to the first output of the charge directing switch. A bypass horizontal shift register or an amplifier is provided that is connected to the second output of the charge directing switch.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 9, 2013
    Assignee: Truesense Imaging, Inc.
    Inventor: Christopher Parks
  • Publication number: 20130099095
    Abstract: In various embodiments, image sensors include output channels enabling high-gain and/or low-gain charge read-out while minimizing charge-conversion noise.
    Type: Application
    Filed: September 24, 2012
    Publication date: April 25, 2013
    Inventor: Christopher Parks
  • Publication number: 20130075583
    Abstract: A CCD image sensor includes vertical CCD shift registers and gate electrodes disposed over the vertical CCD shift registers. The gate electrodes are divided into distinct groups of gate electrodes. The CCD image sensor is adapted to operate in an accumulation mode and a charge transfer mode, an accumulation mode and a charge shifting mode, or an accumulation mode, a charge transfer mode, and a charge shifting mode. The charge transfer mode has an initial charge transfer phase and a final charge transfer phase. The charge shifting mode has an initial charge shifting phase and a final charge shifting phase.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventor: Christopher Parks
  • Publication number: 20130075791
    Abstract: In various embodiments, a charge-coupled device includes channel stops laterally spaced away from the channel by fully depleted regions.
    Type: Application
    Filed: September 20, 2012
    Publication date: March 28, 2013
    Inventor: Christopher Parks
  • Publication number: 20130075582
    Abstract: A CCD image sensor includes vertical CCD shift registers and gate electrodes disposed over the vertical CCD shift registers. The gate electrodes are divided into distinct groups of gate electrodes. The CCD image sensor is adapted to operate in an accumulation mode and a charge transfer mode, an accumulation mode and a charge shifting mode, or an accumulation mode, a charge transfer mode, and a charge shifting mode. The charge transfer mode has an initial charge transfer phase and a final charge transfer phase. The charge shifting mode has an initial charge shifting phase and a final charge shifting phase.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventor: Christopher Parks
  • Publication number: 20130075580
    Abstract: A CCD image sensor includes vertical CCD shift registers and gate electrodes disposed over the vertical CCD shift registers. The gate electrodes are divided into distinct groups of gate electrodes. The CCD image sensor is adapted to operate in an accumulation mode and a charge transfer mode, an accumulation mode and a charge shifting mode, or an accumulation mode, a charge transfer mode, and a charge shifting mode. The charge transfer mode has an initial charge transfer phase and a final charge transfer phase. The charge shifting mode has an initial charge shifting phase and a final charge shifting phase.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventor: Christopher Parks
  • Publication number: 20130075581
    Abstract: A CCD image sensor includes vertical CCD shift registers and gate electrodes disposed over the vertical CCD shift registers. The gate electrodes are divided into distinct groups of gate electrodes. The CCD image sensor is adapted to operate in an accumulation mode and a charge transfer mode, an accumulation mode and a charge shifting mode, or an accumulation mode, a charge transfer mode, and a charge shifting mode. The charge transfer mode has an initial charge transfer phase and a final charge transfer phase. The charge shifting mode has an initial charge shifting phase and a final charge shifting phase.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventor: Christopher Parks
  • Patent number: 8395689
    Abstract: An image sensor includes a horizontal shift register electrically connected to a pixel array for receiving charge packets from the pixel array. A non-destructive sense node is connected to an output of the horizontal shift register. A charge directing switch is electrically connected to the non-destructive sense node. The charge directing switch includes two outputs. A charge multiplying horizontal shift register is electrically connected to one output of the charge directing switch. A discharging element is connected to the other output of the charge directing switch.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: March 12, 2013
    Assignee: OmniVision Technologies, Inc.
    Inventor: Christopher Parks
  • Patent number: 8294187
    Abstract: An image sensor that includes a plurality of pixels disposed on a substrate, each pixel includes at least one photosensitive region that collects charges in response to incident light; a charge-to-voltage conversion node for sensing the charge from the at least one photosensitive region and convening the charge to a voltage; an amplifier transistor having a source connected to an output node, having a gate connected to the charge-to-voltage conversion node and having a drain connected to at least a portion of a power supply node; and a reset transistor connecting the output node and the charge-to-voltage conversion node.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 23, 2012
    Assignee: OmniVision Technologies, Inc.
    Inventor: Christopher Parks