Patents by Inventor Da Chen

Da 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: 9977127
    Abstract: The present invention discloses a ship draught detection apparatus and its detection method. The ship draught detection apparatus includes two servo motors, a guide rail, a sonar detection device, a traction device, a locating device, and a control device. Compared with the provision of a series of sonar detection devices in the prior art, the provision of one sonar detection device reduces the cost and there is no mutual interference between adjacent sonars.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 22, 2018
    Assignee: HOHAI University
    Inventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Lijun Hou, Ning Zhuang
  • Patent number: 9967248
    Abstract: Described are techniques for establishing secure communication channels between user devices and service providing devices. Correspondence between a request received from a user device and security data may be used to determine that the user device has provided a valid access credential. The access credential may be replaced with a subsequent access credential after use. Correspondence between the request and service data may be used to determine that the request may be processed by the receiving service and that the user device has the permissions necessary for the request to be processed. Portions of the request that meet these criteria may be provided to the service. The secure communication channel may also be used to provide the response from the service to the user device.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 8, 2018
    Assignee: Amazon Technologies Inc.
    Inventors: Yu-Hsiang Cheng, Siddhartha Shankara Rao, Robert Dale Francis, Da Chen, Ruoyu Fei, Jingyu Ji, Christopher Chad Lake, Alan Lau, Hanyu Liu, Ajaykumar Selvaraj, Haifeng Xu
  • Publication number: 20180073613
    Abstract: A linkage mechanism includes a pivot assembly, a gear assembly, and a linkage assembly. The pivot assembly pivots around a first rotation axis. The gear assembly is pivoted with the pivot assembly and moves in conjunction with the pivot assembly. The gear assembly includes a cam, and the cam pivots around a second rotation axis. The second rotation axis is not parallel to the first rotation axis. The linkage assembly is disposed at a side of the gear assembly and contacts the cam. When the pivot assembly drives the gear assembly to pivot, the linkage assembly abuts against the cam to produce a relative movement with the cam.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 15, 2018
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Pai-Feng Chen, Mao-Da Chen, Chih-Hsueh Tsai
  • Patent number: 9892787
    Abstract: A multi-time programmable memory cell has a differential multi-time programmable memory cell and a second-level latch cell. The differential multi-time programmable memory cell provides a first balance signal and a second balance signal, and the second-level latch cell receives the first balance signal and the second balance signal and provides an output signal according to the first balance signal and the second balance signal based on a first latch control signal and a second latch control signal.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: February 13, 2018
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Da Chen, Eric Braun
  • Publication number: 20180011191
    Abstract: The present invention discloses a ship draught detection apparatus and its detection method. The ship draught detection apparatus includes two servo motors, a guide rail, a sonar detection device, a traction device, a locating device, and a control device. Compared with the provision of a series of sonar detection devices in the prior art, the provision of one sonar detection device reduces the cost and there is no mutual interference between adjacent sonars.
    Type: Application
    Filed: November 18, 2016
    Publication date: January 11, 2018
    Applicant: HoHai University
    Inventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Lijun Hou, Ning Zhuang
  • Publication number: 20180011030
    Abstract: The present invention discloses a damage detection apparatus for a lock gate sill, including a support, a water storage tank, a water inlet barrel, a filter device, a water pump, and a control device, wherein a barrier is vertically disposed at the bottom of the water storage tank, multiple water discharge pipes are vertically disposed in the barrier, upper ends of the water discharge pipes are communicated with the water storage tank, the water discharge pipes have different heights, lower ports of the water discharge pipes together compose a truncated conical cavity, a camera is disposed at the bottom of the water storage tank in a sealed manner, and a lens of the camera is located in an upper part of the truncated conical cavity.
    Type: Application
    Filed: November 18, 2016
    Publication date: January 11, 2018
    Applicant: HoHai University
    Inventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Xingguo Feng, Lijun Hou
  • Patent number: 9864001
    Abstract: An electronic device is provided. The electronic device includes a printed circuit board (PCB), an antenna structure, a radio frequency signal transceiving circuit and a testing structure. The antenna structure is disposed on the PCB. The radio frequency signal transceiving circuit is disposed on the PCB, and is connected to the antenna structure through a conductive line. The testing structure includes a testing point and a grounding structure. The testing point is disposed on the conductive line, and the grounding structure is disposed on the PCB.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: January 9, 2018
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Jui-Hung Hsu, Li-Hsin Wang, Ping-Yueh Hsieh, Yi-Da Chen, Jhu-Jyun Chang, Hou-Lung Lin
  • Publication number: 20170352955
    Abstract: A tunable antenna device includes a substrate, a switch, a control circuit, an antenna and a frequency adjustment portion. The substrate includes first and second surfaces and first and second through-holes. The switch is on the first surface and includes first, second and first control terminals. The control circuit is on the first surface and electrically coupled to the first control terminal. The antenna is on the second surface and includes first and second radiation members. The frequency adjustment portion is on the second surface and includes first and second metal portions. The first metal portion includes a first interdigital structure electrically coupled to the first radiation member. The second metal portion includes second and third interdigital structures electrically coupled to the second radiation member. The second and third interdigital structures are electrically coupled to the first and second terminals through the first and second through-holes respectively.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 7, 2017
    Inventors: En-Tsao Chang, Yi-Da Chen, Yi-Hsin Tsai
  • Publication number: 20170287559
    Abstract: A multi-time programmable memory cell has a differential multi-time programmable memory cell and a second-level latch cell. The differential multi-time programmable memory cell provides a first balance signal and a second balance signal, and the second-level latch cell receives the first balance signal and the second balance signal and provides an output signal according to the first balance signal and the second balance signal based on a first latch control signal and a second latch control signal.
    Type: Application
    Filed: March 22, 2017
    Publication date: October 5, 2017
    Inventors: Da Chen, Eric Braun
  • Patent number: 9779827
    Abstract: A voltage control circuit for a memory cell having a floating gate transistor and a capacitive device, comprising a first input terminal, a second input terminal, a first output terminal and a second input terminal, wherein the first input terminal is configured to receive a power supply voltage, the second input terminal is configured to receive a ground reference, and wherein based on the power supply voltage and the ground reference, the first output terminal and the second output terminal respectively provides a first voltage signal and a second voltage signal, and wherein a voltage value of the first voltage signal is twice the power supply voltage, and a maximum of a voltage difference between the first voltage signal and the second voltage signal is three times the power supply voltage.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: October 3, 2017
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Tianzhu Zhang, Da Chen
  • Publication number: 20170154684
    Abstract: A voltage control circuit for a memory cell having a floating gate transistor and a capacitive device, comprising a first input terminal, a second input terminal, a first output terminal and a second input terminal, wherein the first input terminal is configured to receive a power supply voltage, the second input terminal is configured to receive a ground reference, and wherein based on the power supply voltage and the ground reference, the first output terminal and the second output terminal respectively provides a first voltage signal and a second voltage signal, and wherein a voltage value of the first voltage signal is twice the power supply voltage, and a maximum of a voltage difference between the first voltage signal and the second voltage signal is three times the power supply voltage.
    Type: Application
    Filed: November 17, 2016
    Publication date: June 1, 2017
    Inventors: Tianzhu Zhang, Da Chen
  • Patent number: 9668064
    Abstract: A microelectromechanical system microphone includes a semiconductor-on-insulator structure, a plurality of resistors, a plurality of first openings, and a vent hole. The semiconductor-on-insulator structure includes a substrate, an insulating layer and a semiconductor layer. The resistors are formed in the semiconductor layer, the first openings are formed in the semiconductor layer, and the vent hole is formed in the insulating layer and the substrate. The resistors are connected to each other to form a resistor pattern, and the first openings are all formed within the resistor pattern.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 30, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chang-Sheng Hsu, Yuan-Sheng Lin, Wei-Hua Fang, Kuan-Yu Wang, Yan-Da Chen
  • Publication number: 20160355398
    Abstract: Provided herein is a semiconductor device is provided. The semiconductor device includes a substrate including a MEMS region and a connection region thereon; a dielectric layer disposed on the substrate in the connection region; a poly-silicon layer disposed on the dielectric layer, wherein the poly-silicon layer serves as an etch-stop layer; a connection pad disposed on the poly-silicon layer; and a passivation layer covering the dielectric layer, wherein the passivation layer includes an opening that exposes the connection pad and a transition region between the connection pad and the passivation layer.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 8, 2016
    Inventors: YAN-DA CHEN, WENG YI CHEN, CHANG-SHENG HSU, KUAN-YU WANG, YUAN SHENG LIN
  • Publication number: 20160229692
    Abstract: A semiconductor structure and a method for manufacturing the same are provided. The semiconductor structure comprises a base substrate and a MEMS structure. The base substrate comprises a CMOS structure. The MEMS structure is formed on the base substrate adjacent to the CMOS structure. The MEMS structure is connected to the CMOS structure. The MEMS structure comprises a membrane and a backplate. The base substrate has a cavity corresponding to the MEMS structure.
    Type: Application
    Filed: March 10, 2015
    Publication date: August 11, 2016
    Inventors: Yuan-Sheng Lin, Chang-Sheng Hsu, Meng-Jia Lin, Shih-Wei Li, Yan-Da Chen
  • Publication number: 20160212551
    Abstract: A microelectromechanical system microphone includes a semiconductor-on-insulator structure, a plurality of resistors, a plurality of first openings, and a vent hole. The semiconductor-on-insulator structure includes a substrate, an insulating layer and a semiconductor layer. The resistors are formed in the semiconductor layer, the first openings are formed in the semiconductor layer, and the vent hole is formed in the insulating layer and the substrate. The resistors are connected to each other to form a resistor pattern, and the first openings are all formed within the resistor pattern.
    Type: Application
    Filed: February 24, 2015
    Publication date: July 21, 2016
    Inventors: Chang-Sheng Hsu, Yuan-Sheng Lin, Wei-Hua Fang, Kuan-Yu Wang, Yan-Da Chen
  • Publication number: 20160187472
    Abstract: An ultrasound imaging system includes a beam receiving circuit and a back-end circuit. The beam receiving circuit receives a plurality of digitized echo signals. The back-end circuit is coupled to the beam receiving circuit for outputting a plurality of compressed delay timing parameters corresponding to a plurality of channels to the beam receiving circuit. The beam receiving circuit decompresses the compressed delay timing parameters into a plurality of delay timing parameters, and processes the digitized echo signals into an ultrasound beamforming value according to the delay timing parameters corresponding to the channels. The back-end circuit synthesizes an ultrasound image according to the ultrasound beamforming value outputted from the beam receiving circuit.
    Type: Application
    Filed: September 22, 2015
    Publication date: June 30, 2016
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chi CHANG, Yi-Jung WANG, Guo-Zua WU, Oscal Tzyh-Chiang CHEN, Chien-Ju LI, Ji-Da CHEN
  • Publication number: 20160171914
    Abstract: A three-dimensional (3D) display including a display panel and a micro lens array is provided. The display panel includes a plurality of scan lines, a plurality of data lines, and a sub-pixel array. The sub-pixel array includes a plurality of sub-pixels arranged in an array. The sub-pixels arranged in any row are electrically connected to the same scan line. Each two sub-pixels in any column are electrically connected to an adjacent data line on a different side alternately. Polarity distribution of the sub-pixels is cyclically repeated in a row direction by one sub-pixel, and polarity distribution of the sub-pixels is cyclically repeated in a column direction by two sub-pixels. The micro lens array includes a plurality of lens units. An image displayed by the display panel produces a left-eye image and a right-eye image after passing through the micro lens array. Furthermore, a driving method is also provided.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Yu-Da Chen, Chun-Huai Li
  • Patent number: 9331509
    Abstract: A charger system with a digital interface circuit, wherein the digital interface circuit has an N-bit control register, wherein N is a positive integer no less than 2, and wherein the N-bit register has a primary state machine, at a first portion of addresses of the control register, configured to instruct operation statuses of a system management bus host; and a secondary state machine, at a second portion of addresses of the control register, configured to instruct a data bit of transmission of a corresponding control instruction under each of the operation statuses of the system management bus host.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 3, 2016
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Da Chen, Zhengwei Zhang, Yue Leng
  • Patent number: 9322710
    Abstract: An optical sensing device includes a plurality of scanning lines having a plurality of first scanning lines and a plurality of second scanning lines, a plurality of sensing lines, a plurality of reading lines, and a plurality of optical sensing modules electrically connected to the scanning lines. Each optical sensing module includes a first optical sensing unit and a second optical sensing unit, each of which includes a sensing unit, a charge storage unit, and a reading unit. The optical sensing module further includes a plurality of differential amplifiers electrically connected to the corresponding reading lines, for determining the difference between the reading lines, wherein the difference indicates the ambient light variation. A first transistor of the sensing unit of the first optical sensing unit is different to a first transistor of the sensing unit of the second sensing unit in channel width.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: April 26, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Yung-Da Chen, Yueh-Hung Chung
  • Patent number: D786760
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 16, 2017
    Inventor: Xian Da Chen