Patents by Inventor David Chen

David Chen 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: 10080215
    Abstract: This specification describes a method comprising generating a first packet based on user plane data relating to a single user which is output by a first L1 PHY processing stage, the first packet including a proper subset of the user plane data which is to be transmitted to the user equipment during a first time-slot symbol; passing the first packet to a second L1 PHY processing stage across a split fronthaul interface in a first time period having a duration corresponding to a duration of transmission of the first time-slot symbol; and passing one or more subsequent packets including the remainder of the user plane data across the split fronthaul interface in one or more successive time periods which are immediately subsequent to the first time period.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: September 18, 2018
    Assignee: Nokia Technologies Oy
    Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
  • Patent number: 10066474
    Abstract: In some example embodiments, a system includes a drill string having a drill bit. The drill string extends through at least part of a well bore. The system also includes a first vibrational sensor, positioned on the drill bit to measure, at a first location on the drill string, an amplitude of one or more of an axial vibration and a lateral vibration. The system also includes a second vibrational sensor, positioned above the drill bit and on the drill string. The second vibration sensor is to measure, at a second location on the drill string, one or more of an axial vibration and a lateral vibration. The system includes a processor unit to determine a type of vibration based on a comparison of the amplitude at the first location to the amplitude at the second location, wherein the type of vibration is at least one of bit whirl of the drill bit and a while of a bottom hole assembly that is part of the drill string.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: September 4, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Paul F. Rodney, Chenkang David Chen, Carl A. Robbins
  • Patent number: 10060248
    Abstract: In some example embodiments, a system includes a drill string having a drill bit. The drill string extends through at least part of a well bore. The system also includes a first vibrational sensor, positioned on the drill bit to measure, at a first location on the drill string, an amplitude of one or more of an axial vibration and a lateral vibration. The system also includes a second vibrational sensor, positioned above the drill bit and on the drill string. The second vibration sensor is to measure, at a second location on the drill string, one or more of an axial vibration and a lateral vibration. The system includes a processor unit to determine a type of vibration based on a comparison of the amplitude at the first location to the amplitude at the second location, wherein the type of vibration is at least one of bit whirl of the drill bit and a while of a bottom hole assembly that is part of the drill string.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 28, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Paul F. Rodney, Chenkang David Chen, Carl A. Robbins
  • Publication number: 20180235431
    Abstract: A dish treating appliance for treating dishes according to an automatic cycle of operation and including a tub at least partially defining a treating chamber, multiple sprayers emitting a liquid into the treating chamber, and a diverter valve having a rotatable valve body, which can be rotated to discrete rotational positions to selectively fluidly couple with the multiple sprayers. A rotary drive is located exteriorly of the tub and comprises a housing defining an interior with a liquid leak reservoir, a motor carried by the housing, an output shaft rotationally driven by the motor, extending through the housing and the tub, and operably coupled to the valve body, and a printed circuit board (PCB) located within the housing.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventors: DAVID CHEN, MARK S. FEDDEMA, RYAN K. ROTH, DEMETRIUS J. SCHAAF, MOHAN TAKALE
  • Patent number: 10053896
    Abstract: A window vent stop for use in a sliding sash window assembly or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in the non-movable sash member. This housing includes a cavity with a bottom plate therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position to prevent movement of the sliding member and a retracted position, to allow movement of the sliding member. Also within the housing is a spring for biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in a window sash when a portion of the window sash is positioned between the underside of a lip on said housing and the flexible member.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 21, 2018
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20180230710
    Abstract: A tamper-proof lock includes: a housing, shaft/handle, cam, lever, spring, and plate. The shaft is pivotally mounted in a housing orifice, with the cam pivotally mounted to the shaft. The cam has first and second shaped openings at first and second respective radial positions, and an arcuate recess. The lever is secured to the shaft, and has a protrusion that alternately engages each of first and second ends of the arcuate recess to respectively/selectively drive the cam to rotate/counter-rotate in first and second directions, into locked and unlocked cam positions. The spring biases the plate for a protrusion thereon to be respectively received within each of first and second shaped cam openings, when aligned therewith at those cam positions, and for a curved surface of the plate to be correspondingly received within first and second curved cam recesses, respectively, when aligned therewith, which facilitate withdrawal of the plate protrusion.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 16, 2018
    Applicant: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen, Troy A. Kirkland
  • Publication number: 20180181570
    Abstract: Aspects of the disclosure relate to determining relevant content in response to a request for information. One or more computing devices may receive a query requesting information regarding a place of interest and identify a first place which satisfies the query associated with a first database and a set of displayable content associated with the first place within a second database. The one or more computing devices may identify a subset of the displayable content for display in response to the query, the identification of the subset of displayable content comprising determining a ranking for each item of displayable content in the set of displayable content according to the query. The subset of displayable content and the first place may be provided for presentation on a client device.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 28, 2018
    Inventors: Timothy Chou, Qichi Yang, Boris Mazniker, Chris Schilling, David Chen
  • Patent number: 10008123
    Abstract: Systems and methods are disclosed for generating a digital flight path within complex mission boundaries. In particular, in one or more embodiments, systems and methods generate flight legs that traverse a target site within mission boundaries. Moreover, one or more embodiments include systems and methods that utilize linking algorithms to connect the generated flight legs into a flight path. Moreover, one or more embodiments include systems and methods that generate a mission plan based on the flight path. In one or more embodiments, the generated mission plan enables a UAV to traverse a flight area within mission boundaries and capture aerial images with regard to the target site. Furthermore, in one or more embodiments, systems and methods capture digital aerial images of vertical surfaces of a structure by generating a reference surface and flight legs corresponding to the reference surface.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 26, 2018
    Assignee: SKYCATCH, INC.
    Inventor: David Chen
  • Patent number: 10006232
    Abstract: A window vent stop for use in a sliding sash window assembly or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in a non-movable sash member. A tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of a sliding member and a retracted position to allow movement of the sliding member. Also within the housing is a spring for biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in the non-movable sash member.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: June 26, 2018
    Assignee: Vision Industries Group
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 10009295
    Abstract: Methods and systems for a more efficient transmission of network traffic are provided. According to one embodiment, presence of outbound payload data, distributed across a first and second payload buffer, within a user memory space of a network device that has been generated by a user process is determined by a bus/memory interface or a network interface unit. The payload data is fetched by performing direct virtual memory addressing of the user memory space including mapping virtual addresses of the payload buffers to corresponding physical addresses, including: (i) when the payload buffers are noncontiguous, then retrieving the outbound payload data with reference to multiple buffer descriptors having starting virtual addresses of the payload buffers and (ii) when they are contiguous, then retrieving the outbound payload data with reference to a single buffer descriptor. The outbound payload data is then segmented across one or more TCP packets.
    Type: Grant
    Filed: November 18, 2017
    Date of Patent: June 26, 2018
    Assignee: Fortinet, Inc.
    Inventors: Xu Zhou, David Chen, Lin Huang, Guansong Zhang
  • Patent number: 9993132
    Abstract: A dish treating appliance for treating dishes according to an automatic cycle of operation and including a tub at least partially defining a treating chamber, multiple sprayers emitting a liquid into the treating chamber, and a diverter valve having a rotatable valve body, which can be rotated to discrete rotational positions to selectively fluidly couple with the multiple sprayers. A rotary drive is located exteriorly of the tub and comprises a housing defining an interior with a liquid leak reservoir, a motor carried by the housing, an output shaft rotationally driven by the motor, extending through the housing and the tub, and operably coupled to the valve body, and a printed circuit board (PCB) located within the housing.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 12, 2018
    Assignee: Whirlpool Corporation
    Inventors: David Chen, Mark S. Feddema, Ryan K. Roth, Demetrius J. Schaaf, Mohan Takale
  • Patent number: 9986885
    Abstract: A dish treating appliance has a tub at least partially defining a treating chamber for holding dishes for treatment according to an automatic cycle of operation. An access opening provides access to the treating chamber. There are multiple sprayers that emit liquid into the treating chamber, multiple feed tubes fluidly coupled to the multiple sprayers, a diverter valve selectively fluidly connecting to the multiple feed tubes, and a pump having an inlet fluidly coupled to the treating chamber and an outlet fluidly coupled to the diverter valve.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Whirlpool Corporation
    Inventors: David Chen, Kristopher L. Delgado, Kevin Miller
  • Patent number: 9968372
    Abstract: A cannula insertion tool includes a body having a first end portion, a second end portion, and a grip located between the first end portion and the second end portion. The body defines a channel extending through the first end portion and the grip. The insertion tool also includes a slider having a drive member and an actuator. The drive member is positioned within the channel of the body. The actuator extends outwardly from the second end portion of the body. The insertion tool further includes a needle coupled to the drive member adjacent the first end portion of the body. The needle is movable with the slider between a retracted position, in which the needle is positioned substantially within the first end portion of the body, and an extended position, in which at least a portion of the needle extends outwardly from the first end portion of the body.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 15, 2018
    Assignee: Medical Instrument Development Laboratories, Inc.
    Inventors: David Chen, Steven Smith
  • Patent number: 9918886
    Abstract: A seat assist device is described. The seat assist device includes a base, a lift platform having a front portion and a rear portion, with the front portion of the lift platform being pivotally connected with the base. A lifting arm is connected with the rear portion of the lift platform. The lifting arm extends from the lift platform to project beyond the front potion of the lift platform, with the lifting arm terminating in handles for grasping by a user. A lift bar is pivotally connected between the base and the lifting arm, whereby a user sitting upon the seat assist device can press downward on the handles to cause the rear portion of the lift platform to rise and, in doing so, assist the user in rising from a seated position.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: March 20, 2018
    Assignee: SPLANE DESIGN ASSOCIATES, INC.
    Inventors: Robson Lindsay Splane, Jr., David A. Chen
  • Publication number: 20180077087
    Abstract: Methods and systems for a more efficient transmission of network traffic are provided. According to one embodiment, presence of outbound payload data, distributed across a first and second payload buffer, within a user memory space of a network device that has been generated by a user process is determined by a bus/memory interface or a network interface unit. The payload data is fetched by performing direct virtual memory addressing of the user memory space including mapping virtual addresses of the payload buffers to corresponding physical addresses, including: (i) when the payload buffers are noncontiguous, then retrieving the outbound payload data with reference to multiple buffer descriptors having starting virtual addresses of the payload buffers and (ii) when they are contiguous, then retrieving the outbound payload data with reference to a single buffer descriptor. The outbound payload data is then segmented across one or more TCP packets.
    Type: Application
    Filed: November 18, 2017
    Publication date: March 15, 2018
    Applicant: Fortinet, Inc.
    Inventors: Xu Zhou, David Chen, Lin Huang, Guansong Zhang
  • Publication number: 20180042040
    Abstract: An exemplary method includes determining, at a centralized processing apparatus of a wireless network, a first subset of downlink user plane data corresponding to one or more wireless user equipments at least by calculating input data required at each of one or more L1 PHY processing stages of a remote processing apparatus, wherein the first subset includes bits required by a remote processing apparatus to select a first symbol for transmission to the one or more user equipments at a first time slot; and streaming, via a fronthaul interface, the bits of the first subset followed by bits of one or more further subset of downlink user plane data, wherein the bits of the further subset of user plane data includes only the bits required to select by the remote processing apparatus a next symbol for transmission to the one or more of the wireless user equipments at a next time slot immediately following the first time slot.
    Type: Application
    Filed: January 18, 2017
    Publication date: February 8, 2018
    Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
  • Publication number: 20180040137
    Abstract: Systems and methods are disclosed for generating georeference information with respect to aerial images. In particular, in one or more embodiments, systems and methods generate georeference information relating to aerial images captured without ground control points based on existing aerial images. For example, systems and methods can access a new set of aerial images without ground control points and utilize existing aerial images containing ground control points to generate a georeferenced representation corresponding to the features of the new set of aerial images. Similarly, systems and methods can access a new image without ground control points and utilize an existing georeferenced orthomap to produce a georeferenced orthomap corresponding to the features of the new image. One or more embodiments of the disclosed systems and methods permit users to obtain georeference information related to new images without the need to place ground control points or collect additional georeference information.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventors: Manlio Francisco Barajas Hernandez, Leonardo Felipe Romo Morales, David Chen, Sida Li
  • Publication number: 20180042003
    Abstract: This specification describes a method comprising generating a first packet based on user plane data relating to a single user which is output by a first L1 PHY processing stage, the first packet including a proper subset of the user plane data which is to be transmitted to the user equipment during a first time-slot symbol; passing the first packet to a second L1 PHY processing stage across a split fronthaul interface in a first time period having a duration corresponding to a duration of transmission of the first time-slot symbol; and passing one or more subsequent packets including the remainder of the user plane data across the split fronthaul interface in one or more successive time periods which are immediately subsequent to the first time period.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 8, 2018
    Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
  • Patent number: 9883223
    Abstract: Methods and apparatus for providing coordination between two or more different media distribution channels. In one embodiment, the apparatus includes a server and associated client processes disposed of various components of a managed content distribution network (e.g., cable or satellite network). The server process coordinates with the client processes to obtain user interactivity data useful is assessing the efficacy of certain secondary content (e.g., advertisements). In one variant, input is received from, and provided to, other associated media campaigns (e.g., print, online, and/or telephonic) so as to allow rapid and effective coordination between the campaigns. Mechanisms for improving user engagement to the secondary content are also disclosed.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 30, 2018
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Vipul Patel, Kenneth Gould, David Chen
  • Patent number: 9852639
    Abstract: Systems and methods are disclosed for generating a digital flight path within complex mission boundaries. In particular, in one or more embodiments, systems and methods generate flight legs that traverse a target site within mission boundaries. Moreover, one or more embodiments include systems and methods that utilize linking algorithms to connect the generated flight legs into a flight path. Moreover, one or more embodiments include systems and methods that generate a mission plan based on the flight path. In one or more embodiments, the generated mission plan enables a UAV to traverse a flight area within mission boundaries and capture aerial images with regard to the target site.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 26, 2017
    Assignee: SKYCATCH, INC.
    Inventors: Yifei Teng, David Chen, Patrick Stuart