Patents by Inventor Kevin W. Johnson

Kevin W. Johnson 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).

  • Publication number: 20210369454
    Abstract: According to a system and method for percutaneously delivering a replacement tricuspid valve to a heart, a wire is percutaneously introduced into the venous vasculature. A distal end of the wire is passed into a right atrium, through a tricuspid valve ring, and into a right ventricle, within which it is anchored to tissue of the right ventricle. A tricuspid valve delivery device carrying a replacement tricuspid valve is positioned over the wire, and a director is positioned over the wire proximally adjacent to, and in contact with, the tricuspid valve delivery device. The director and delivery device are pushed over the wire into the right atrium while traction is applied traction to the wire that is fixed within the right ventricle. The director is actively articulated during advancement, to articulate the replacement tricuspid valve on the valve delivery device within a tricuspid valve ring of the heart.
    Type: Application
    Filed: February 10, 2021
    Publication date: December 2, 2021
    Inventors: Richard S. Stack, Kevin W. Johnson, William L. Athas
  • Patent number: 11129603
    Abstract: A system and method used to deliver an aortic valve therapeutic device to an aortic valve site includes a cable percutaneously introduced a cable into a vasculature of a patient and positioned to run from a femoral vein, through the heart via a transeptal puncture, and to a femoral artery. The therapeutic device is passed over an end of the cable at the venous side and is secured to the cable. The therapeutic device is pushed in a distal direction while the second end of the cable is pulled in the proximal direction to advance the therapeutic device to the mitral valve site. A left ventricle redirector aids in orienting the therapeutic device and preventing migration of the cable towards delicate mitral valve structures and chordae tendoneae during advancement of the therapeutic device.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 28, 2021
    Assignee: Synecor LLC
    Inventors: Richard S Stack, William L. Athas, Kevin W. Johnson
  • Publication number: 20210244393
    Abstract: A conduit for creating a passage from a right atrium to a left atrium, through a mitral valve into the left ventricle, and to provide a passage from the left ventricle into the aortic valve. The conduit includes an elongate tubular member having a shaft with a proximal section and a distal loop section at a distal end of the proximal section. The distal loop section includes a passive proximal curve, a steerable distal curve, a generally straight segment extending between the curves, and a distal tip. The shaft in the distal loop section is steerable to cause it to curve back on itself so that proximal curve is formed by a part of the shaft that is closer along the length of the shaft to the distal tip.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: Richard S. Stack, Kevin W. Johnson, William L. Athas, Emer M. FEERICK
  • Publication number: 20210220131
    Abstract: A method for delivering a therapeutic device to a target aortic valve site includes transseptally positioning a cable to run between afemoral vein, through the heart via the right atrium, left atrium, mitral valve, aortic valve and into the aorta and arterial vasculature with the flexible cable having a first end extending outside the body from a venous vessel and a second end external to the patient at the femoral artery. The aortic valve therapeutic device is advanced over the cable from outside the body and introduced into a femoral artery. A steerable sheath is advanced over the cable, into the venous vasculature and into the left ventricle of the heart. The aortic valve therapeutic device is pushed in a distal direction from the femoral artery to advance the aortic valve therapeutic device to the target site.
    Type: Application
    Filed: March 28, 2021
    Publication date: July 22, 2021
    Inventors: Richard S Stack, William L. Athas, Kevin W. Johnson
  • Publication number: 20210177389
    Abstract: A system and method used to deliver a valve delivery system carrying a valve to a target valve annulus in the heart includes a cable percutaneously introduced into a vasculature of a patient and positioned to run from a femoral vein, transseptally through the heart, to a femoral artery. The valve delivery system device is passed over an end of the cable at the arterial side and is secured to the cable. The valve delivery system device is pushed in a distal direction while the venous end of the cable is pulled in the proximal direction, to advance the valve delivery system to the target valve annulus. A left ventricle redirector positionable on the cable from the venous end has a distal end actively steered during advancement and positioning of the valve delivery device, exerting forces that steer the distal nose of the valve delivery device as it moves towards the valve annulus.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Applicant: Synecor LLC
    Inventors: Richard S Stack, William L Athas, Kevin W Johnson
  • Patent number: 11022858
    Abstract: A disclosed apparatus includes a plurality of camera units. Control logic, operatively coupled to each camera unit, is operative to perform a parallax operation using at least two image frames from at least two camera units to determine a common focus distance, subsequent to completing independent auto-focus operations and respective lens position adjustments for the at least two camera units. The control logic provides a control signal to at least one of the camera units to adjust its actuator to adjust lens position in response to the determined common focus distance. A test procedure is used to map focus distance to lens position for each camera unit and to generate a lookup table. The control logic uses the lookup table unique to each camera unit to adjust the lens settings according to the determined common focus distance. The parallax operation is iterated until the common focus distance converges.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 1, 2021
    Assignee: Motorola Mobility LLC
    Inventors: By-Her W. Richards, Sean C. Kelly, Kevin W. Johnson
  • Patent number: 10959713
    Abstract: A system and method used to deliver a therapeutic device to a target treatment site in the heart includes a cable percutaneously introduced a cable into a vasculature of a patient and positioned to run from a femoral vein, through the heart via a transseptal puncture, and to a femoral artery. The therapeutic device is passed over an end of the cable at the venous side and is secured to the cable. The therapeutic device is pushed in a distal direction while the second end of the cable is pulled in the proximal direction to advance the therapeutic device to the target treatment site. A left ventricle redirector aids in orienting the therapeutic device and preventing migration of the cable towards delicate mitral valve structures and chordae tendoneae during advancement of the therapeutic device.
    Type: Grant
    Filed: April 27, 2019
    Date of Patent: March 30, 2021
    Assignee: SYNECOR, LLC
    Inventors: Richard S Stack, William L Athas, Kevin W Johnson
  • Publication number: 20190247034
    Abstract: A system and method used to deliver a therapeutic device to a target treatment site in the heart includes a cable percutaneously introduced a cable into a vasculature of a patient and positioned to run from a femoral vein, through the heart via a transseptal puncture, and to a femoral artery. The therapeutic device is passed over an end of the cable at the venous side and is secured to the cable. The therapeutic device is pushed in a distal direction while the second end of the cable is pulled in the proximal direction to advance the therapeutic device to the target treatment site. A left ventricle redirector aids in orienting the therapeutic device and preventing migration of the cable towards delicate mitral valve structures and chordae tendoneae during advancement of the therapeutic device.
    Type: Application
    Filed: April 27, 2019
    Publication date: August 15, 2019
    Inventors: Richard S Stack, William L Athas, Kevin W Johnson
  • Patent number: 9742971
    Abstract: In embodiments of dual camera system zoom notification, a dual camera system includes a first imager and a second imager that are designed to support synthetic optical zoom of a scene. A camera controller is implemented to determine that the synthetic optical zoom is not supported to capture an image of the scene with the dual camera system. The camera controller can then initiate a message for a user of the dual camera system to indicate that the synthetic optical zoom is not supported to capture the image of the scene. The message can be displayed to indicate that the synthetic optical zoom is not supported and/or to indicate that digital zoom is activated. A user can also be provided with selectable options that enable the user to decide the zoom operation when the dual camera system is not operational for synthetic optical zoom.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 22, 2017
    Assignee: Motorola Mobility LLC
    Inventors: By-Her W Richards, Kevin W Johnson
  • Patent number: 9741117
    Abstract: An apparatus includes a plurality of camera units where each camera unit has a lens, a sensor that can detect at least three colors, and camera unit calibration data for each camera unit is stored in non-volatile, non-transitory memory. The apparatus also includes multi-camera auto white balance synchronization logic that is operatively coupled to each camera unit. The multi-camera auto white balance synchronization logic is operative to determine common white balance results based on the camera unit white balance results per frame and the camera calibration data. The common white balance results are provided to image signal processing pipelines such that a merged frame can be obtained by combining the frames of each camera after performing white balance and color correction using the common white balance results.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 22, 2017
    Assignee: Motorola Mobility LLC
    Inventors: By-Her W Richards, Sean C Kelly, Kevin W Johnson
  • Publication number: 20160248955
    Abstract: In embodiments of dual camera system zoom notification, a dual camera system includes a first imager and a second imager that are designed to support synthetic optical zoom of a scene. A camera controller is implemented to determine that the synthetic optical zoom is not supported to capture an image of the scene with the dual camera system. The camera controller can then initiate a message for a user of the dual camera system to indicate that the synthetic optical zoom is not supported to capture the image of the scene. The message can be displayed to indicate that the synthetic optical zoom is not supported and/or to indicate that digital zoom is activated. A user can also be provided with selectable options that enable the user to decide the zoom operation when the dual camera system is not operational for synthetic optical zoom.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 25, 2016
    Inventors: By-Her W Richards, Kevin W Johnson
  • Publication number: 20160182874
    Abstract: An apparatus includes a plurality of camera units where each camera unit has a lens, a sensor that can detect at least three colors, and camera unit calibration data for each camera unit is stored in non-volatile, non-transitory memory. The apparatus also includes multi-camera auto white balance synchronization logic that is operatively coupled to each camera unit. The multi-camera auto white balance synchronization logic is operative to determine common white balance results based on the camera unit white balance results per frame and the camera calibration data. The common white balance results are provided to image signal processing pipelines such that a merged frame can be obtained by combining the frames of each camera after performing white balance and color correction using the common white balance results.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 23, 2016
    Inventors: By-Her W. Richards, Sean C. Kelly, Kevin W. Johnson
  • Publication number: 20160147131
    Abstract: A disclosed apparatus includes a plurality of camera units. Control logic, operatively coupled to each camera unit, is operative to perform a parallax operation using at least two image frames from at least two camera units to determine a common focus distance, subsequent to completing independent auto-focus operations and respective lens position adjustments for the at least two camera units. The control logic provides a control signal to at least one of the camera units to adjust its actuator to adjust lens position in response to the determined common focus distance. A test procedure is used to map focus distance to lens position for each camera unit and to generate a lookup table. The control logic uses the lookup table unique to each camera unit to adjust the lens settings according to the determined common focus distance. The parallax operation is iterated until the common focus distance converges.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 26, 2016
    Inventors: By-Her W. Richards, Sean C. Kelly, Kevin W. Johnson
  • Patent number: 8786759
    Abstract: An auto-focus camera (100) can include a lens (102), a sensor (108) for detecting an image from the lens, a first liquid crystal layer (104) between the lens and the sensor, and a second liquid crystal layer (106) between the lens and the sensor and further orthogonally aligned to the first liquid crystal layer. The auto-focus camera can further include an integrated circuit programmed to drive the first liquid crystal layer and the second liquid crystal layer. The auto-focus camera can include a controller (202) programmed to control two orthogonally aligned liquid crystal layers. The liquid crystal layers can serve as an optical anti-alias filter using birefringence properties of the liquid crystal layers. The first liquid crystal layer and the second liquid crystal layer can be orthogonally aligned to achieve polarization insensitive operation of the auto-focus camera.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 22, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Dongxue Wang, Kevin W. Johnson, Zhiming Zhuang
  • Patent number: 7933509
    Abstract: A camera-movement compensation device includes a first liquid-crystal cell with a pair of parallel transparent plates and a first voltage source coupled to the first liquid-crystal cell and able to apply and alter a first voltage gradient across the plates of the first liquid-crystal cell. The device also includes a second liquid-crystal cell having a pair of parallel transparent plates and disposed so that each of the plates of the second liquid-crystal cell is parallel to the plates of the first liquid-crystal cell and in light communication with at least one wave of light passing through the plates of the first liquid-crystal cell, a second voltage source coupled to the second liquid-crystal cell and able to apply and alter a second voltage gradient across the surfaces of the second liquid-crystal cell, and a movement detector coupled to the voltage sources to alter the slope of the voltage gradients in proportion to a movement.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: April 26, 2011
    Assignee: Motorola, Inc.
    Inventors: Sen Yang, Kevin W. Johnson, Dongxue Wang, Chien-Hui Wen, Zhiming Zhuang
  • Publication number: 20090169192
    Abstract: A camera-movement compensation device includes a first liquid-crystal cell with a pair of parallel transparent plates and a first voltage source coupled to the first liquid-crystal cell and able to apply and alter a first voltage gradient across the plates of the first liquid-crystal cell. The device also includes a second liquid-crystal cell having a pair of parallel transparent plates and disposed so that each of the plates of the second liquid-crystal cell is parallel to the plates of the first liquid-crystal cell and in light communication with at least one wave of light passing through the plates of the first liquid-crystal cell, a second voltage source coupled to the second liquid-crystal cell and able to apply and alter a second voltage gradient across the surfaces of the second liquid-crystal cell, and a movement detector coupled to the voltage sources to alter the slope of the voltage gradients in proportion to a movement.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Sen Yang, Kevin W. Johnson, Dongxue Wang, Chien-Hui Wen, Zhiming Zhuang
  • Publication number: 20090059101
    Abstract: An auto-focus camera (100) can include a lens (102), a sensor (108) for detecting an image from the lens, a first liquid crystal layer (104) between the lens and the sensor, and a second liquid crystal layer (106) between the lens and the sensor and further orthogonally aligned to the first liquid crystal layer. The auto-focus camera can further include an integrated circuit programmed to drive the first liquid crystal layer and the second liquid crystal layer. The auto-focus camera can include a controller (202) programmed to control two orthogonally aligned liquid crystal layers. The liquid crystal layers can serve as an optical anti-alias filter using birefringence properties of the liquid crystal layers. The first liquid crystal layer and the second liquid crystal layer can be orthogonally aligned to achieve polarization insensitive operation of the auto-focus camera.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: MOTOROLA, INC.
    Inventors: DONGXUE WANG, KEVIN W. JOHNSON, ZHIMING ZHUANG
  • Publication number: 20090001389
    Abstract: A solid state device (200) for a hybrid vertical cavity of multiple wavelength LEDs is provided. The solid state device can include a hybrid vertical cavity formed by a cascading of a first sub-cavity (210) and a second sub-cavity (220) to share a mirror (350) within the solid state device. The hybrid vertical cavity can collimate the first accumulated light (213) and the second accumulated light (223) to increase an efficiency of total emitted light. In one arrangement, the total emitted light can be directed to a phosphor to generate a white light.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Applicant: MOTOROLA, INC.
    Inventors: DONGXUE WANG, KEVIN W. JOHNSON
  • Publication number: 20080291314
    Abstract: A handheld portable imaging device (100) including a first array of pixels and a second array of pixels embedded within the first array. A processor coupled to the first and second arrays processes data read from first array independently of data read from the second array. In one embodiment, data read from the first array is processed as an image, and data read from the second array is processed relatively quickly for controlling a lens actuator that focuses an image on the first array. In another embodiment, the data from the second array is used to stabilize an image captured by the first array.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Applicant: MOTOROLA, INC.
    Inventors: JOHN C. PINCENTI, KEVIN W. JOHNSON, DOINA I. PETRESCU, JASON R. RUKES
  • Publication number: 20080136961
    Abstract: Disclosed are devices and methods for indicating operation of an imager by positioning a notification light within the no light zone that is between the imager and a lens and/or approximately in the same plane as the imager. The notification light can be configured to operate according to the duty cycle of the imager, that is, the light can be inactive while the imager is collecting light and can be active while the imager is not collecting light, without affecting the quality of the image capture or video recording. By positioning the notification light in the no light zone, there may be better utilization of the surface area of a camera or mobile communication device or other device with a camera.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Applicant: MOTOROLA, INC.
    Inventors: RICK LATELLA, ROGER W. ADY, KEVIN W. JOHNSON