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: 9219562
    Abstract: Systems, methods, apparatuses, and computer program products for dynamically redistributing timing and synchronization in a packet switched network are provided. One method includes creating, by a slave node, a peer list comprising an identifier of at least one peer slave node that shares a same master node as the slave node or that has a certain predefined affinity with the slave node. The method may also include announcing a holdover time of the slave node to the at least one peer slave node, and, when a predefined event occurs, announcing to the at least one peer slave node that the slave node is taking on a mini-master role for at least the announced holdover time.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: December 22, 2015
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventor: David Chen
  • Publication number: 20150337563
    Abstract: A clip assembly may safely secure sliding sashes of a window or door during transportation, and, in one embodiment, be comprised of a strap member and a pawl member. The strap member may be comprised of a bumper portion, and a strap portion extending therefrom, where the strap portion may have a plurality of teeth formed within the thickness of the strap. The pawl member may have a pair of sidewalls supported by a top wall and an intermediate wall. The top wall may have a protrusion which includes a plurality of pawl teeth formed to complement the strap teeth, and be located proximate to the intermediate wall. The strap may be introduced through the gap between the top rail of an upper sash and bottom rail of the second sash, to then be inserted into the pawl, and thereby be retained by the respective teeth to secure the sashes.
    Type: Application
    Filed: May 28, 2015
    Publication date: November 26, 2015
    Applicant: Vision Industries Group, Inc.
    Inventors: Luke Liang, David Chen
  • Publication number: 20150330121
    Abstract: A combination sash lock and tilt latch secures 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 sash window meeting rail without screws, using legs received within corresponding openings in the rail. The lock assembly is releasably secured thereto by a spring 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 with a plurality of openings, each configured to receive the post of the lock assembly, within the meeting rail, with the lock assembly installed thereon in any one of a plurality of positions corresponding to said openings in said latch member.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20150330124
    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 fill opening of the sash, when the hook is pivoted into the second position.
    Type: Application
    Filed: June 23, 2015
    Publication date: November 19, 2015
    Applicant: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20150326332
    Abstract: Systems, methods, apparatuses, and computer program products for dynamically redistributing timing and synchronization in a packet switched network are provided. One method includes creating, by a slave node, a peer list comprising an identifier of at least one peer slave node that shares a same master node as the slave node or that has a certain predefined affinity with the slave node. The method may also include announcing a holdover time of the slave node to the at least one peer slave node, and, when a predefined event occurs, announcing to the at least one peer slave node that the slave node is taking on a mini-master role for at least the announced holdover time.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 12, 2015
    Applicant: NOKIA SOLUTIONS AND NETWORKS OY
    Inventor: David CHEN
  • Publication number: 20150252600
    Abstract: A combination sash lock and tilt latch secures 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 sash window meeting rail without screws, using legs received within corresponding openings in the rail. The lock assembly is releasably secured thereto by a spring 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 with a plurality of openings, each configured to receive the post of the lock assembly, within the meeting rail, with the lock assembly installed thereon in any one of a plurality of positions corresponding to said openings in said latch member.
    Type: Application
    Filed: December 11, 2014
    Publication date: September 10, 2015
    Inventors: Luke Liang, Glen Paesano, David Chen
  • Publication number: 20150252596
    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: Application
    Filed: March 6, 2014
    Publication date: September 10, 2015
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20150254596
    Abstract: One embodiment of the invention disclosed herein provides techniques for distributing tasks to skilled workers participating in a managed crowd-sourcing workforce. A crowd worker routing system receives a request for a task assignment from a first worker participating in the crowd-sourcing workforce. The crowd worker routing system retrieves one or more scores associated with the first worker, wherein each score is related to the performance of the first worker with respect to completing a prior set of task assignments. The crowd worker routing system determines that a first task assignment included in a first set of task assignments is related to a first score included in the one or more scores. The crowd worker routing system determines whether to route the first task assignment to the first worker for completion based on the first score and one or more routing rules.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 10, 2015
    Applicant: NETFLIX, INC.
    Inventors: Venu Gopal NAYAR, David CHEN, Aroon RAMADOSS, Ryan SCHROEDER, Vinod VISHWANATHAN
  • Patent number: 9131283
    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 ob 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: December 14, 2012
    Date of Patent: September 8, 2015
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: Vipul Patel, Kenneth Gould, David Chen
  • Patent number: 9127486
    Abstract: A clip assembly may safely secure sliding sashes of a window or door during transportation, and, in one embodiment, be comprised of a strap member and a pawl member. The strap member may be comprised of a bumper portion, and a strap portion extending therefrom, where the strap portion may have a plurality of teeth formed within the thickness of the strap. The pawl member may have a pair of sidewalls supported by a top wall and an intermediate wall. The top wall may have a protrusion which includes a plurality of pawl teeth formed to complement the strap teeth, and be located proximate to the intermediate wall. The strap may be introduced through the gap between the top rail of an upper sash and bottom rail of the second sash, to then be inserted into the pawl, and thereby be retained by the respective teeth to secure the sashes.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: September 8, 2015
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, David Chen
  • Patent number: 9115529
    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: October 1, 2013
    Date of Patent: August 25, 2015
    Assignee: VISION INDUSTRIES GROUP, INC.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20150233231
    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: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Paul F. Rodney, Chenkang David Chen, Carl A. Robbins
  • Publication number: 20150233232
    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: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Paul F. Rodney, Chenkang David Chen, Carl A. Robbins
  • Patent number: 9103144
    Abstract: A door travel limiting device includes a housing, a stop member, a compression spring, and a flexible member. The stop member is slidably received by the housing, and is slidable in first and second sliding directions, and has first and second ends respectively extending outwardly from different portions of the housing. The stop member is biased to slide in the first sliding direction, causing a portion proximate to its second end to normally retract into the housing. Extreme sliding positions of the stop member are limited by protrusions. A flexible member protrudes from the stop member to selectively engage portions of a housing track, to retain the second end of the stop member at an intermediate position between its first and second positions, when the stop member is first actuated to slide from the first position to the second position, and is then no longer actuated but biased.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: August 11, 2015
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 9077468
    Abstract: Systems and techniques for delivering timing over packet (ToP) data over a wireless hop. Timing information is synchronized between a master and a slave node of a wireless hop. When a ToP packet arrives at the master node, an arrival time of the packet at an ingress point of the master node is noted and stored as a timestamp. The packet is transmitted over a wireless link to the slave node. The packet makes its way to an egress point of the slave node, and the residence time of the packet in the wireless link is calculated and stored. The residence time of the packet is the time between the packet's arrival at the ingress point of the master and the egress point of the slave. The packet is then transmitted out of the egress point of the slave.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 7, 2015
    Assignee: Nokia Solutions and Networks Oy
    Inventor: David Chen
  • Publication number: 20150143664
    Abstract: A door travel limiting device includes a housing, a stop member, a compression spring, and a flexible member. The stop member is slidably received by the housing, and is slidable in first and second sliding directions, and has first and second ends respectively extending outwardly from different portions of the housing. The stop member is biased to slide in the first sliding direction, causing a portion proximate to its second end to noimally retract into the housing. Extreme sliding positions of the stop member are limited by protrusions. A flexible member protrudes from the stop member to selectively engage portions of a housing track, to retain the second end of the stop member at an intermediate position between its first and second positions, when the stop member is first actuated to slide from the first position to the second position, and is then no longer actuated but biased.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 9027062
    Abstract: Methods and apparatus for the delivery of digital content in a network. In one embodiment, the digital content comprises internet content received from an Internet host server in a first container format, and converted to a second container format at a headend entity of a cable television or satellite network. The headend entity transmits the re-containerized content to one or more consumer devices, and acts as a gateway device between the consumer devices and various internet content sources. Delivery of internet content from the gateway device can be via broadcast, nPVR, DVR and/or VOD delivery mechanisms. The internet content gateway device is adapted to request, receive and process the internet content. Requests for internet content may be made from either a CPE or the gateway device itself according to one or more rules. The content may also be selectively transcoded before re-encapsulation based on the consumer device capabilities.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 5, 2015
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Vipul Patel, David Chen, Scott Miller, Mehul Shah
  • Patent number: 9022145
    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: May 27, 2010
    Date of Patent: May 5, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul F. Rodney, Chenkang David Chen, Carl A. Robbins
  • Publication number: 20150113103
    Abstract: Techniques are described for detecting faults in media content based on the behavior of users viewing the media content. Embodiments stream a first instance of media content to one or more users. The behavior of the one or more users is monitored while the users are viewing the streaming first instance of media content. Embodiments then determine whether the first instance of media content is faulty, based on the monitored behavior of the one or more users.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Gregory ORZELL, John FUNGE, David CHEN
  • Patent number: D730713
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 2, 2015
    Assignee: Vision Industries, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen