Patents by Inventor John Hoffman

John Hoffman 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: 12153434
    Abstract: A robot lawnmower and method for controlling the robot lawnmower based on the generation of a local map. The method including receiving an image from an imaging sensor onboard the robot lawnmower, the image including an area of ground in an upcoming path, applying a semantic segmentation algorithm to produce a segmented image from the received image, the segmented image including regions corresponding to features in the image, applying a perspective transform to the segmented image to obtain an overhead view transformed image, wherein the regions are preserved in the transformed image, determining, from the transformed image, positions of the regions relative to the current position of the robot lawnmower, plotting a local map of the environment of the robot lawnmower based on positions of the regions relative to a current position of the robot lawnmower; and controlling the robot lawnmower to navigate a lawn area using the local map.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: November 26, 2024
    Assignee: POSITEC POWER TOOLS (SUZHOU) CO., LTD.
    Inventor: John Hoffman
  • Publication number: 20240069549
    Abstract: A robot lawn mower and computer implemented method is disclosed for distinguishing a type of feature in a lawn area. The method includes detecting a non-lawn feature in an upcoming path of the robot lawnmower, controlling the robot lawnmower to circumnavigate the non-lawn feature around a perimeter of the non-lawn feature, recording characteristics of the circumnavigation of the non-lawn feature, and distinguishing, based on the characteristics of the circumnavigation, a type of non-lawn feature as being either a boundary of a lawn area or a feature entirely contained within the lawn area.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 29, 2024
    Inventor: John HOFFMAN
  • Publication number: 20230400857
    Abstract: A robot lawnmower and method for controlling the robot lawnmower based on the generation of a local map. The method including receiving an image from an imaging sensor onboard the robot lawnmower, the image including an area of ground in an upcoming path, applying a semantic segmentation algorithm to produce a segmented image from the received image, the segmented image including regions corresponding to features in the image, applying a perspective transform to the segmented image to obtain an overhead view transformed image, wherein the regions are preserved in the transformed image, determining, from the transformed image, positions of the regions relative to the current position of the robot lawnmower, plotting a local map of the environment of the robot lawnmower based on positions of the regions relative to a current position of the robot lawnmower; and controlling the robot lawnmower to navigate a lawn area using the local map.
    Type: Application
    Filed: June 8, 2022
    Publication date: December 14, 2023
    Inventor: John HOFFMAN
  • Patent number: 11364032
    Abstract: Provided herein is a clamp device that can be used in minimally invasive procedures, including surgeries such as laparoscopic surgeries, for clamping a tissue or an organ or a portion of a tissue or organ. Also provided herein are methods of clamping a tissue or an organ or a portion thereof during minimally invasive surgery using the clamp device provided herein. Also provided are systems for performing a minimally invasive surgery that include the clamp device for minimally invasive surgery provided herein and an injection device configured to access an endoscopic port for the minimally invasive surgery.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: June 21, 2022
    Assignee: Global Bio Therapeutics, Inc.
    Inventors: Jose Gustavo Cabrera Aquino, Blanca Angelica Segura Pacheco, Steven Masterson, Allan Rozenberg, Paul Faucher, John Hoffman
  • Publication number: 20210255638
    Abstract: This specification provides a movement area division method and apparatus for a smart self-moving device, a movement path forming method and apparatus for a smart self-moving device, and an automatic working system. In an embodiment, a preset recognition model is first invoked, and image data that is obtained from an electronic map database and includes a target working area and electronic map data of correlated coordinate information is recognized and divided, to recognize a plurality of working areas and provide boundary figures of these working areas. A corresponding global positioning system (GPS) reference point is marked within the boundary of each working area. Regular movement paths of the self-moving device are generated based on the reference points and boundary figures. These movement paths cover all division areas. The self-moving device autonomously completes walking according to the division areas and the set paths.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 19, 2021
    Inventors: Steven Ma, John Hoffman
  • Patent number: 10938841
    Abstract: A guard sensor injects a multi-GHz (multi giga-bit) guard signal along a guard signal transmission path above an observable knee in the amplitude response of the path to define a guarded region and to detect physical or electromagnetic intrusions of that guarded region. At frequencies above the knee, the signal transmission path exhibits increasingly non-linear and even chaotic behavior that improves the overall sensitivity of the sensor and its ability to detect slight changes in the distributed transmission parameters that characterize circuit devices, signal paths and signals. The guarded region may be used to protect a combination of circuit devices, physical connections, interfaces, high and low frequency signal transmission paths and signals.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 2, 2021
    Assignee: Raytheon Company
    Inventors: William Jennings, John Hoffman
  • Patent number: 10452872
    Abstract: A system for detecting changes to circuitry includes: a processor; and a memory, and the memory has stored thereon instructions that, when executed by the processor, cause the processor to: periodically measure physical characteristic data of the circuitry, operational data of the circuitry, and environmental data; periodically capture the measured data; generate a dynamic fingerprint based on an aggregation of a first set of the captured data, and the dynamic fingerprint is a compound data structure encapsulating the aggregated data; associate metadata with the dynamic fingerprint; periodically update the dynamic fingerprint according to successive sets of the captured data; and compare the updated dynamic fingerprint to a previous dynamic fingerprint, to detect the changes to the circuitry.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Raytheon Company
    Inventors: William T. Jennings, John Hoffman, Johnathan W. Craig
  • Patent number: 10445531
    Abstract: A system for authenticating a circuit includes: a processor; and a memory, and the memory has stored thereon instructions that, when executed by the processor, cause the processor to: periodically measure physical characteristic data of the circuit, operational data of the circuit, and environmental data; periodically capture the measured data; generate a dynamic fingerprint based on an aggregation of the captured data, and the dynamic fingerprint is a compound data structure encapsulating the aggregated data; associate metadata with the dynamic fingerprint; and output the dynamic fingerprint as a physically unclonable function (PUF) of the circuit.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: October 15, 2019
    Assignee: Raytheon Company
    Inventors: William T. Jennings, John Hoffman, Johnathan W. Craig
  • Publication number: 20190132339
    Abstract: A guard sensor injects a multi-GHz (multi giga-bit) guard signal along a guard signal transmission path above an observable knee in the amplitude response of the path to define a guarded region and to detect physical or electromagnetic intrusions of that guarded region. At frequencies above the knee, the signal transmission path exhibits increasingly non-linear and even chaotic behavior that improves the overall sensitivity of the sensor and its ability to detect slight changes in the distributed transmission parameters that characterize circuit devices, signal paths and signals. The guarded region may be used to protect a combination of circuit devices, physical connections, interfaces, high and low frequency signal transmission paths and signals.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 2, 2019
    Inventors: William Jennings, John Hoffman
  • Patent number: 9940483
    Abstract: This disclosure provides for implementing a firmware security interface within a field-programmable gate array (FPGA) for communicating between secure and non-secure environments executable within the FPGA. A security monitor is implemented within the programmable logic of the FPGA as a soft core processor and the firmware security interface modifies one or more functions of the security monitor. The modifications to the security monitor include establishing a timer “heartbeat” within the FPGA to ensure that the FPGA invokes a secure environment and raising an alarm should the FPGA fail to invoke such environment.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 10, 2018
    Assignee: Raytheon Company
    Inventors: Matthew C. Areno, John Hoffman, William T. Jennings
  • Publication number: 20170344760
    Abstract: A system for detecting changes to circuitry includes: a processor; and a memory, and the memory has stored thereon instructions that, when executed by the processor, cause the processor to: periodically measure physical characteristic data of the circuitry, operational data of the circuitry, and environmental data; periodically capture the measured data; generate a dynamic fingerprint based on an aggregation of a first set of the captured data, and the dynamic fingerprint is a compound data structure encapsulating the aggregated data; associate metadata with the dynamic fingerprint; periodically update the dynamic fingerprint according to successive sets of the captured data; and compare the updated dynamic fingerprint to a previous dynamic fingerprint, to detect the changes to the circuitry.
    Type: Application
    Filed: August 19, 2016
    Publication date: November 30, 2017
    Inventors: William T. Jennings, John Hoffman, Johnathan W. Craig
  • Publication number: 20170344761
    Abstract: A system for authenticating a circuit includes: a processor; and a memory, and the memory has stored thereon instructions that, when executed by the processor, cause the processor to: periodically measure physical characteristic data of the circuit, operational data of the circuit, and environmental data; periodically capture the measured data; generate a dynamic fingerprint based on an aggregation of the captured data, and the dynamic fingerprint is a compound data structure encapsulating the aggregated data; associate metadata with the dynamic fingerprint; and output the dynamic fingerprint as a physically unclonable function (PUF) of the circuit.
    Type: Application
    Filed: August 19, 2016
    Publication date: November 30, 2017
    Inventors: William T. Jennings, John Hoffman, Johnathan W. Craig
  • Publication number: 20170213053
    Abstract: This disclosure provides for implementing a firmware security interface within a field-programmable gate array (FPGA) for communicating between secure and non-secure environments executable within the FPGA. A security monitor is implemented within the programmable logic of the FPGA as a soft core processor and the firmware security interface modifies one or more functions of the security monitor. The modifications to the security monitor include establishing a timer “heartbeat” within the FPGA to ensure that the FPGA invokes a secure environment and raising an alarm should the FPGA fail to invoke such environment.
    Type: Application
    Filed: January 25, 2016
    Publication date: July 27, 2017
    Inventors: Matthew C. Areno, John Hoffman, William T. Jennings
  • Patent number: 9670041
    Abstract: A cylinder prop assembly is cooperable with a lift cylinder for a scissor lift and includes a cylinder prop displaceable between a disengaged position, in which the cylinder rod is movable relative to the cylinder housing, and an engaged position in which the cylinder rod is locked from displacement relative to the cylinder housing. An actuation lever is coupled with the cylinder prop and is accessible to displace the cylinder prop between the disengaged position and the engaged position.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: June 6, 2017
    Assignee: JLG INDUSTRIES, INC.
    Inventors: John Hoffman, Brian Green, Troy Young, Jesse Sollers
  • Publication number: 20150066056
    Abstract: Provided herein is a clamp device that can be used in minimally invasive procedures, including surgeries such as laparoscopic surgeries, for clamping a tissue or an organ or a portion of a tissue or organ. Also provided herein are methods of clamping a tissue or an organ or a portion thereof during minimally invasive surgery using the clamp device provided herein. Also provided are systems for performing a minimally invasive surgery that include the clamp device for minimally invasive surgery provided herein and an injection device configured to access an endoscopic port for the minimally invasive surgery.
    Type: Application
    Filed: August 8, 2014
    Publication date: March 5, 2015
    Inventors: Jose Gustavo Cabrera Aquino, Blanca Angelica Segura Pacheco, Steven Masterson, Allan Rozenberg, Paul Faucher, John Hoffman
  • Publication number: 20140231733
    Abstract: A cylinder prop assembly is cooperable with a lift cylinder for a scissor lift and includes a cylinder prop displaceable between a disengaged position, in which the cylinder rod is movable relative to the cylinder housing, and an engaged position in which the cylinder rod is locked from displacement relative to the cylinder housing. An actuation lever is coupled with the cylinder prop and is accessible to displace the cylinder prop between the disengaged position and the engaged position.
    Type: Application
    Filed: October 17, 2012
    Publication date: August 21, 2014
    Inventors: John Hoffman, Brian Green, Troy Young, Jesse Sollers
  • Patent number: 8561529
    Abstract: In one aspect of the invention, a container for displaying, preparing and presenting food including a base having an integrated cutter having a plurality of blades and a central hub and a cover removably attached to the base for displaying the food prior to use and for storing the food during and after cutting, the cover having indentations to receive the central hub and possibly the blades to enhance the depth of cutting by the cutter through the food. The base and cover have side walls dimensioned so that the cover interfaces with the base after driving.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: October 22, 2013
    Assignee: Apple Inferno, Inc.
    Inventors: John Hoffman, Dean Lindsay, Jose Tirso Olivares Cordoba
  • Patent number: 8507283
    Abstract: Stimuli-responsive magnetic nanoparticles, methods of making the nanoparticles, and methods of using the nanoparticles.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: August 13, 2013
    Assignee: University of Washington
    Inventors: Patrick S. Stayton, Allan S. Hoffman, Jr-iuan Lai, John Hoffman, Mitsuhiro Ebara
  • Publication number: 20110266492
    Abstract: Stimuli-responsive magnetic nanoparticles, methods of making the nanoparticles, and methods of using the nanoparticles.
    Type: Application
    Filed: June 15, 2011
    Publication date: November 3, 2011
    Applicant: UNIVERSITY OF WASHINGTON
    Inventors: Patrick S. Stayton, Allan S. Hoffman, Jr-iuan Lai, John Hoffman, Mitsuhiro Ebara
  • Patent number: 7981688
    Abstract: Stimuli-responsive magnetic nanoparticles, methods of making the nanoparticles, and methods of using the nanoparticles.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: July 19, 2011
    Assignee: University of Washington
    Inventors: Patrick S. Stayton, Allan S. Hoffman, Jr-iuan Lai, John Hoffman, Mitsuhiro Ebara