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).

  • Publication number: 20190144113
    Abstract: Systems and methods are disclosed for determining a position of a camera affixed to a UAV in flight when the camera captures a digital aerial image. In particular, in one or more embodiments, the disclosed systems and methods utilize real time kinematic satellite navigation techniques to identify a position of a UAV. Moreover, the disclosed systems and methods precisely determine the time that a camera captures a digital aerial image together with an attitude of the UAV at the time of capture to calculate a location of a camera at the time of capture. In one or more embodiments, the disclosed systems and methods can utilize the determined position of the camera together with the captured digital aerial image to generate a three-dimensional representation of a site.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 16, 2019
    Inventors: David Chen, Colleen Kelly Twitty, Blaine Schanfeldt, James J. Johnson, Jacob Federico
  • Publication number: 20190130641
    Abstract: Systems and methods are disclosed for more efficiently and quickly utilizing digital aerial images to generate models of a site. In particular, in one or more embodiments, the disclosed systems and methods capture a plurality of digital aerial images of a site. Moreover, the disclosed systems and methods can cluster the plurality of digital aerial images based on a variety of factors, such as visual contents, capture position, or capture time of the digital aerial images. Moreover, the disclosed systems and methods can analyze the clusters independently (i.e., in parallel) to generate cluster models. Further, the disclosed systems and methods can merge the cluster models to generate a model of the site.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 2, 2019
    Inventors: Manlio Francisco Barajas Hernandez, David Chen, Pablo Arturo Martinez Gonzalez, Christian Sanz
  • Publication number: 20190110270
    Abstract: Systems and methods are disclosed for determining the position of a UAV in flight. In particular, in one or more embodiments, the disclosed systems utilize real time kinematic and precise point positioning techniques to identify the position of a UAV without use of RTK correction data from an RTK network. Moreover, the disclosed systems and methods can precisely and accurately determine the absolute position of a base station and a UAV in flight at various times during a flight mission without use of RTK correction data from an RTK network. In one or more embodiments, the disclosed systems and methods can utilize the absolute position of a UAV in flight to perform various aerial missions or tasks.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 11, 2019
    Inventor: David Chen
  • Patent number: 10257555
    Abstract: A playlist server application is provided on a server at a first network node. A playlist local application is provided for a remote device. An indication of a change to a playlist on one of the server and the remote device is obtained from a corresponding one of the playlist server application and the playlist local application. The change is synchronized to another one of the server and the remote device.
    Type: Grant
    Filed: July 8, 2017
    Date of Patent: April 9, 2019
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: David Chen, Vipul Patel, Jian Yu, John Chen, Marc Lawrence-Apfelbaum
  • Publication number: 20190098353
    Abstract: Methods, systems and devices are provided for communicating multimedia content over a service provider network. A network server may receive an audio-video stream from a content provider server, relaying the audio-video stream to a receiver device via the service provider network, receive an operating mode notification identifying a user behavior from the receiver device, and ceasing the relaying of the audio-video stream to the receiver device based on the user behavior. The network server may also alter the audio-video stream based on the received operating mode notification and send the altered audio-video stream to the receiver device via the service provider network.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventors: Jian Yu, David Chen, Vipul Patel, Kenneth Gould
  • Patent number: 10235566
    Abstract: Systems and methods are disclosed for utilizing digital aerial images to determine stockpile volumes. In particular, in one or more embodiments, the disclosed systems and methods utilize a UAV to capture a plurality of digital aerial images portraying stockpiles on a site. The disclosed systems and methods can generate a two-dimensional representation of the site and a three-dimensional representation of the site based on the plurality of digital aerial images. Moreover, the disclosed systems and methods can apply an elevation filter to the three-dimensional representation of the site to identify potential stockpiles. Further, the disclosed systems and methods can utilize a neural network to analyze two-dimensional features and three-dimensional features of the potential stockpiles to identify final stockpiles. The disclosed systems and methods can then utilize three-dimensional stockpile representations to determine stockpile volumes.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: March 19, 2019
    Assignee: SKYCATCH, INC.
    Inventors: Rodolfo Ruben Alvarez Gonzalez, Manlio Francisco Barajas Hernandez, Leonardo Felipe Romo Morales, David Chen
  • Patent number: 10231254
    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: Grant
    Filed: January 18, 2017
    Date of Patent: March 12, 2019
    Assignee: Nokia Technologies Oy
    Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
  • Patent number: 10197621
    Abstract: A testing device includes a system circuit board, a first chip component, a supporting structure, a circuit board and an interposer. The system circuit board has a surface where the first chip component is disposed. The first chip component is connected to the system circuit board. The supporting structure is disposed on the surface and surrounds the first chip component; the circuit board is fixed on the supporting structure and keeps distance from the first chip component. The circuit board has a connector for connecting to a chip component that is to be tested. The interposer is located between the circuit board and the first chip component. The circuit board is connected to the first chip component via the interposer. The first chip component need not connect to the chip component to be tested, so is less liable to be damaged by the frequent testing.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: February 5, 2019
    Assignee: Kingston Digital, Inc.
    Inventors: David Chen, Chengvee Ong, Chichih Yu
  • Patent number: 10200436
    Abstract: Techniques are disclosed for representing a user quality of experience (QoE) experienced by users of a streaming media service using a single QoE metric. The single QoE metric may be determined based on a set of empirical characteristics relating to the streaming video service such as startup latency, video quality, and the likelihood of interruptions in streaming playback. The empirical characteristics may be weighted according to how much one factor influences user quality of experience, relative to the others. Representing the QoE as a single metric may allow a streaming media service provider to improve key business measures such as subscriber retention and engagement.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: February 5, 2019
    Assignee: NETFLIX, INC.
    Inventors: John Funge, Mark Watson, Wei Wei, David Chen
  • Publication number: 20190035047
    Abstract: The present disclosure provides image capture devices and associated methods that feature intelligent use of hardware-generated statistics. An example image capture device can include an imaging hardware pipeline that generates frames of imagery. The imaging hardware pipeline can generate one or more hardware-generated statistics based at least in part on, for example, the raw image data captured by the image sensor or intermediate image data within the pipeline. The image capture device can analyze the hardware-generated statistics to determine one or more metrics for the raw image data or the image. The image capture device can determine a downstream operation of the image capture device relative to the image based at least in part on the metrics determined from the hardware generated statistics.
    Type: Application
    Filed: July 28, 2017
    Publication date: January 31, 2019
    Inventors: Suk Hwan Lim, Huizhong Chen, David Chen, Hsin-I Liu
  • Patent number: 10189567
    Abstract: Systems and methods are disclosed for determining a position of a camera affixed to a UAV in flight when the camera captures a digital aerial image. In particular, in one or more embodiments, the disclosed systems and methods utilize real time kinematic satellite navigation techniques to identify a position of a UAV. Moreover, the disclosed systems and methods precisely determine the time that a camera captures a digital aerial image together with an attitude of the UAV at the time of capture to calculate a location of a camera at the time of capture. In one or more embodiments, the disclosed systems and methods can utilize the determined position of the camera together with the captured digital aerial image to generate a three-dimensional representation of a site.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: January 29, 2019
    Assignee: SKYCATCH, INC.
    Inventors: David Chen, Colleen Kelly Twitty, Blaine Schanfeldt, James J Johnson, Jacob Federico
  • Publication number: 20190026531
    Abstract: Systems and methods are disclosed for utilizing digital aerial images to determine stockpile volumes. In particular, in one or more embodiments, the disclosed systems and methods utilize a UAV to capture a plurality of digital aerial images portraying stockpiles on a site. The disclosed systems and methods can generate a two-dimensional representation of the site and a three-dimensional representation of the site based on the plurality of digital aerial images. Moreover, the disclosed systems and methods can apply an elevation filter to the three-dimensional representation of the site to identify potential stockpiles. Further, the disclosed systems and methods can utilize a neural network to analyze two-dimensional features and three-dimensional features of the potential stockpiles to identify final stockpiles. The disclosed systems and methods can then utilize three-dimensional stockpile representations to determine stockpile volumes.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 24, 2019
    Inventors: Rodolfo Ruben Alvarez Gonzalez, Manlio Francisco Barajas Hernandez, Leonardo Felipe Romo Morales, David Chen
  • Patent number: 10182252
    Abstract: Methods, systems and devices are provided for communicating multimedia content over a service provider network. A network server may receive an audio-video stream from a content provider server, relaying the audio-video stream to a receiver device via the service provider network, receive an operating mode notification identifying a user behavior from the receiver device, and ceasing the relaying of the audio-video stream to the receiver device based on the user behavior. The network server may also alter the audio-video stream based on the received operating mode notification and send the altered audio-video stream to the receiver device via the service provider network.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: January 15, 2019
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: Jian Yu, David Chen, Vipul Patel, Kenneth Gould
  • Patent number: 10174530
    Abstract: A device may limit opening of a sash hingedly coupled to a master frame, and includes: a bracket attached to the sash; a first arm having a first end pivotally coupled to the bracket; a second arm having a first end pivotally coupled to the first arm's second end; means for biasing the second arm into a retracted position; and a release assembly. The release assembly is secured to the master frame and includes a hook pivotable between a first position and a second position, which, in the first position, may be releasably received in an opening in the second end of the second arm when the second arm is in the retracted position, as the sash is closed and received within the master window frame The second arm is disengaged from the hook, permitting full opening of the sash, when the hook is pivoted into the second position.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 8, 2019
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20180340355
    Abstract: A window fastener includes a forced-entry-resistant sash lock and tilt latch assembly. The sash lock is actuated to engage a keeper to lock the closed sash window. The tilt latch assembly permits sliding of the unlocked window, and prevents tilting until the tilt latch assembly is actuated by the interconnected sash lock. The sash lock and tilt latch assembly cooperate with a stop member secured to a master window frame, to limit opening of the window to a position between the closed position and a full open position, through contact of the latch assembly with a portion of the stop member. The sash lock is configured to actuate the latch assembly into a cocked position, permitting window movement beyond the limited position, and selective contact between the latch assembly and stop member that triggers latch assembly repositioning, causing automatic locking of the sash window when moved into the closed position.
    Type: Application
    Filed: October 2, 2017
    Publication date: November 29, 2018
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20180325759
    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 portion 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: Application
    Filed: March 9, 2018
    Publication date: November 15, 2018
    Inventors: Robson Lindsay Splane, David A. Chen
  • Patent number: 10119310
    Abstract: A combination sash lock and tilt latch in one integral fastener may suitably secure a sash window that is slidable and tiltable with respect to a master window frame. The fastener includes a lock assembly and latch assembly. The lock assembly is releasably mounted upon the meeting rail of the sash window without screws, using legs received within corresponding openings in the rail. The lock assembly is secured thereto by a biasing member causing engagement between the legs and rail openings. The lock assembly includes a pivotable cam to releasably engage a keeper on the master frame, and a pivotable arm extending into the meeting rail. The latch assembly includes biasing means and a latch member, which includes a fixed funnel member and a flexible funnel member on a distal end of a flexible beam, to blindly engage the lock assembly arm within the meeting rail, when installed therein.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 6, 2018
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 10107021
    Abstract: A window vent stop for use in a sliding sash window 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 the tumbler is formed with a plastic member for selectively 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 the housing and the flexible member.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 23, 2018
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20180301041
    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: Application
    Filed: June 15, 2018
    Publication date: October 18, 2018
    Inventor: David Chen
  • Publication number: 20180302807
    Abstract: A mesh network includes domain(s) of multiple nodes interconnected through links and in which there are gateway(s) connecting a domain to another network. The domain(s), their multiple nodes, and their links are part of a topology. A set of primary and backup routing paths, each including an ST that includes the selected gateway and route to that selected gateway for nodes in the domain, for a selected one of the gateway(s) is accessed or determined. Schedule(s) to be used by node(s) in the mesh network over one or more scheduling cycles are accessed or determined. Based on status of link(s) between nodes and on the schedule(s), switching is performed to a selected one of the primary or backup routing paths for the selected gateway. Routing in the mesh network is caused to be modified based on the selected routing path. Information is sent to nodes for the paths and schedules.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 18, 2018
    Inventors: David CHEN, Pekka Juhani WAINIO, Kari SEPPANEN, Tapio SUIHKO, Jorma KILPI, Jori PAANANEN