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: 20150037930
    Abstract: A method of manufacturing a semiconductor structure includes the steps of depositing a layer of semiconductor oxide on a base semiconductor layer, scavenging oxygen from the layer of semiconductor oxide and recrystallizing the oxygen scavenged layer of semiconductor oxide as a semiconductor heteroepitaxy layer.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 5, 2015
    Applicant: The University of Kentucky Research Foundation
    Inventor: Zhi David Chen
  • Patent number: 8935581
    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: Grant
    Filed: April 19, 2012
    Date of Patent: January 13, 2015
    Assignee: Netflix, Inc.
    Inventors: Gregory S. Orzell, John Funge, David Chen
  • Patent number: 8925702
    Abstract: The present invention relates to a clutch actuation mechanism having a valve, a plurality of couplings in fluid communication with the valve, wherein one of the plurality of couplings is operable to distribute power between a primary set of wheels and a secondary set of wheels, and another of the plurality of couplings is operable to distribute power between each of the secondary set of wheels. The present invention also includes a drive shaft driven by a source of power, which is also connected to the secondary set of wheels, and a pressure supply device in fluid communication with the valve, wherein the valve directs fluid to the plurality of couplings, and when the valve directs fluid to the one of the plurality of couplings operable to distribute power between the primary set and secondary set of wheels, the drive shaft will transfer power to the secondary set of wheels.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: January 6, 2015
    Assignee: BorgWarner Inc.
    Inventors: Eric C. Sandstrom, Larry A. Pritchard, David Chen
  • Patent number: 8918230
    Abstract: Described are systems and methods, including computer program products for controlling an unmanned vehicle. A user controls one or more unmanned vehicles with a smart phone. The smart phone receives video stream from the unmanned vehicles, and the smart phone displays the controls from the unmanned vehicle over the video. The smart phone and the unmanned vehicle communicate wirelessly.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: December 23, 2014
    Assignee: Mitre Corporation
    Inventors: Peter David Chen, Dennis Bushmitch
  • Publication number: 20140361794
    Abstract: A moisture sensor includes a first electrode, a layer of porous insulating material including a plurality of pores, a film of dielectric sensing material covering the inner surfaces of the plurality of pores and a second electrode.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Inventor: Zhi David Chen
  • Publication number: 20140361802
    Abstract: A testing device is disclosed, including 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: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventors: David CHEN, Chengvee ONG, Chichih YU
  • Publication number: 20140362501
    Abstract: A connector and an electronic device for connecting an electronic component and a testing apparatus are provided. The connector includes a substrate and a plurality of conductive resilient sheets. The substrate includes a surface and a plurality of recesses disposed on the surface. Each of the conductive resilient sheets is disposed on the surface and has an end portion sunk in the recess. And the electronic device includes the aforesaid connector and an electronic component, which is disposed on the connector and has a plurality of bumps disposed on a surface of the electronic component. The bumps touch the end portions of the conductive resilient sheets and partially sunk in the recesses. Therefore, the touching connection between the electronic component and the conductive resilient sheets can be more stable.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventors: David CHEN, Chengvee ONG, Chichih YU
  • Publication number: 20140335899
    Abstract: An event based service provides services and/or products based on an event. Services/products are made available to persons attending an event. Services, products, and/or advertisements can be made available to persons via wireless mobile communications devices. The services/products can be made available to persons attending an event. Services/products can be made available while the event is occurring. Additionally, advertising space is auctioned allowing the ability to bid for advertising space for advertising services/products via the event based service. Individual providers can offer services/products to a group of people at the same location, and at a time that people may be most interested in the services/products. Access to the event based service can be via service provider offered access points. An individual provider's device can act as a server that enables services/products to be purchased.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 13, 2014
    Inventors: James Fan, David Chen, Richard Kuo
  • Publication number: 20140319342
    Abstract: A system for adaptive electron beam scanning may include an inspection sub-system configured to scan an electron beam across the surface of a sample. The inspection sub-system may include an electron beam source, a sample stage, a set of electron-optic elements, a detector assembly and a controller communicatively coupled to one or more portions of the inspection sub-system. The controller may assess one or more characteristics of one or more portions of an area of the sample for inspection and, responsive to the assessed one or more characteristics, adjust one or more scan parameters of the inspection sub-system.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: KLA-Tencor Corporation
    Inventors: Gary Fan, David Chen, Vivekanand Kini, Hong Xiao
  • Patent number: 8870244
    Abstract: A sash lock comprises a housing, latch member, activator arm, and trigger. The latch member is spring biased to slide from an unlocked position towards a locked position. The activator arm and trigger are pivotally mounted within the housing, with a torsion spring biasing the trigger relative to the activator arm, to cause the activator arm to pivot and contact the latch member. When the latch member is moved to the unlocked position, the biased activator arm engages the latch member to retain it in the unlocked position, while the biased trigger member pivots to have a portion protrude out of the housing. Upon closing the sash member, an angled surface of a keeper contacts a curved surface of the protruding trigger to cause it to counter-rotate and drive the activator arm to disengage from the latch member and automatically permit biasing of the latch member into the locked position.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: October 28, 2014
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20140306462
    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: Application
    Filed: March 6, 2014
    Publication date: October 16, 2014
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 8844985
    Abstract: An improved forced entry resistant sash lock comprises a housing, a shaft rotatably mounted thereto, a locking cam and a delay cam rotatably and fixedly mounted to the shaft, respectively, and a locking spring. The delay cam selectively engages and drives the locking cam between a locked position and an unlocked position. Locking spring biasing causes engagement with a locking earn opening to lock the cam when in the latch-locked position, with engagement to a depth permitting releasable detent engagement in a delay cam recess. Selective engagement and driving of the locking cam comprises a first portion of delay cam rotation being without driven locking cam rotation, and a second portion causing driven locking cam rotation from a retracted position into a protruding position. Selective engagement is by contact between corresponding protrusions on the delay and locking cams. Shaft/delay cam counter-rotation to unlock the latch proceeds in a reverse manner.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: September 30, 2014
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20140282772
    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: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: David Chen, Vipul Patel, Jian Yu, John Chen, Marc Lawrence-Apfelbaum
  • Patent number: 8833809
    Abstract: A window vent stop for use in a sliding member of 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 of the assembly. This housing includes a cavity with a bottom plate. 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 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 toward the extended position. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to the non-movable sash member.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: September 16, 2014
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20140215539
    Abstract: Methods and apparatus for providing enhanced catalog data capacity and functionality within a content distribution network. In one embodiment, the apparatus includes an architecture configured to utilize an upstream out-of-band (OOB) channel for upstream catalog data request carriage, while a downstream in-band (IB) QAM is used for carriage of the catalog data issued by the network in response to the request. In another embodiment, the extant catalog structure is largely retained, yet modified so as to (i) eliminate redundancy within “barker” channel audio/video data delivery, and (ii) reduce the encoding resolution of the barker audio and/or video so as to utilize less bandwidth, thereby allowing enhanced capacity for catalog title expansion (and/or reduced latency in responding to catalog requests).
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: Time Warner Cable Enterprises LLC
    Inventors: David Chen, Vipul Patel, Jian Yu
  • Patent number: 8789857
    Abstract: An improved forced entry resistant sash lock comprises a housing, a shaft rotatably mounted thereto, a locking spring, and a locking cam and a delay cam rotatably and fixedly mounted to the shaft, respectively. The delay cam selectively engages and drives the locking cam between a locked position and an unlocked position. Locking spring biasing causes engagement with a locking cam opening to lock the cam when in the latch-locked position, with engagement to a depth permitting releasable detent engagement in a delay cam recess. Selective engagement and driving of the locking cam comprises a first portion of delay cam rotation being without driven locking cam rotation, and a second portion causing driven locking cam rotation from a retracted position into a protruding position. Selective engagement is by contact between corresponding protrusions on the delay and locking cams. Shaft/delay cam counter-rotation to unlock the latch proceeds in a reverse manner.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 29, 2014
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 8789862
    Abstract: An adjustable stop is adapted to limit travel of a sliding sash window/door, and can be installed upon the window/door master frame during initial manufacturing of the product, or may be an after-market option added at some time after manufacturing was completed. The stop may even be installed upon sash windows/doors currently in service in a building. The stop is intended to limit sash travel between a closed position and a safe position, where the safe position is a position significantly less than a full-open position. The safety stop may be comprised of a housing and a tumbler being pivotally mounted within a cavity in the housing, with a spring to bias the tumbler out of an opening in the housing. Mounting is by a flange extending from the housing, with spacers of varying thickness that are capable of removably attaching thereon to accommodate sash to master frame height differences.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 29, 2014
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, David Chen
  • Patent number: D717300
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 11, 2014
    Assignee: 3D Systems, Inc.
    Inventors: Venkat Gourishankar, Pulkit Kapur, David Chen, Scott Summit, Seth Astle, Kristin Size
  • Patent number: D721208
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 13, 2015
    Assignee: Amerihua International Enterprises Inc.
    Inventors: David Chen, Leighton Chen
  • Patent number: D721942
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: February 3, 2015
    Inventors: Luke Liang, Tong Liang, David Chen