Patents by Inventor Chao Dai

Chao Dai 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: 20190277413
    Abstract: A push button switching spool includes a switching body. The switching body includes a housing, a water inlet and a water outlet, wherein the housing comprises an upper casing and a lower casing with a gap for passing water. A mandrel is disposed in the housing, and the mandrel axially moved within the housing. The mandrel comprises a plurality of grooves with sealing rings. And, a left protrusion and a right protrusion are formed on each groove, wherein a diameter of the left protrusion is the same as a diameter of the right protrusion. The push button switching spool can normally switch water paths at high water pressure.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: ZHI-SHENG LI, SHENG-CHAO DAI, CAN-KUN WU, QING-PING WANG
  • Patent number: 10375338
    Abstract: A hybrid bonded image sensor has a photodiode die with macrocells having at least one photodiode and a bond contact; a supporting circuitry die with multiple supercells, each supercell having at least one macrocell unit having a bond contact coupled to the bond contact of a macrocell of the photodiode die. Each macrocell unit lies within a supercell and has a reset transistor adapted to reset photodiodes of the macrocell of the photodiode die. Each supercell has at least one common source amplifier adapted to receive signal from the bond contact of a selected macrocell unit of the supercell, the common source amplifier coupled to drive a column line through a selectable source follower. In embodiments, the common source amplifiers of several supercells drive the selectable source follower through a distributed differential amplifier.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: August 6, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Zheng Yang, Hiroaki Ebihara, Chun-Ming Tang, Chao-Fang Tsai, Rui Wang, Tiejun Dai
  • Patent number: 10360248
    Abstract: In general, in one aspect, the invention relates to a method for servicing requests, the method includes receiving, from a client system, a first request comprising a query, determining a first user associated with the first request, modifying the query to obtain a first modified query, where the first modified query includes a first permission definition token associated with the first user, processing the modified query to obtain a first object from a content repository, and providing the first object to the client system.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 23, 2019
    Assignee: EMC IP Holding Company LLC
    Inventors: Lei Zhang, Chao Chen, Jingjing Liu, Kunwu Huang, Hongtao Dai, Ying Teng
  • Publication number: 20190156723
    Abstract: A gate driving circuit includes a first switch element, a second switch element, a third switch element, a fourth switch element, a fifth switch element, and a sixth switch element. Wherein, the third switch element receives a reference low level voltage to stabilize the voltage of a pull-up control node. A stabilization module consisting of the fourth switch element, the fifth switch element and the sixth switch element is configured to stabilize the voltage of a gate drive signal outputted by a fourth conductive terminal of the second switch element during a non-scanning period.
    Type: Application
    Filed: September 14, 2017
    Publication date: May 23, 2019
    Applicants: NANJING CEC PANDA FPD TECHNOLOGY CO., LTD., NANJING HUADONG ELECTRONIOCS INFORMATION & TECHNOLOGY CO., LTD.
    Inventors: CHAO DAI, ZHIJUN WANG
  • Publication number: 20190098339
    Abstract: Video data processing method and apparatus are provided. The method includes: encoding, by an encoder side, obtained original video data according to a hierarchical P-frame prediction HPP structure to obtain an HPP bitstream; redundancy-coding the HPP bitstream according to a forward error correction FEC code, redundancy packet quantities in frames in the HPP bitstream progressively decreasing from lower to higher temporal layers to which the frames belong in the HPP structure; and sorting the frames in the redundancy-coded HPP bitstream and sequentially sending the frames in the redundancy-coded HPP bitstream to a decoder side.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: Yongfang SHI, Anlin GAO, Chao DAI, Jing LV
  • Patent number: 10204580
    Abstract: A scan-driving device is disclosed herein. The scan-driving device comprises a plurality of scan-driving circuits, a detective-driving circuit, and a modulating module. The scan-driving circuit comprises a n up-pull control module, an up-pull module, a down-transfer module, a down-pull module, a down-pull-sustain module, a bootstrap capacitor. The detective-driving circuit in the scan-driving device of the present invention is able to better maintain the ability of down-pull-sustain of the down-pull-sustain module, whereby the stability of the scan-driving device is increased.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 12, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Patent number: 10115362
    Abstract: The present invention provides a scan-driving circuit used to perform a driving operation on cascaded scanning lines, which comprises a pull-up control module, a pull-up module, a pull-down module, a pull-down sustain module, a down-transmitting module and a bootstrap capacitor. The scan-driving circuit of the present invention enhances the voltage-level control capability of the Q point and raises the reliability of the scan-driving circuit, by disposing a first constant-high voltage and a second constant-high voltage.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: October 30, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Publication number: 20180234116
    Abstract: The application discloses video data redundancy control methods and apparatuses. Video packet redundancy control information is determined according to packet loss at a reception apparatus. The video packet redundancy control information is received from the reception apparatus. Video data is encoded according to the video packet redundancy control information to obtain encoded video data of a plurality of frames by a transmission apparatus. A frame-level redundancy budget is allocated for one of the plurality of frames according to the video packet redundancy control information. Further, the one of the plurality of frames is packetized according to the frame-level redundancy budget to generate a packetized frame. Redundancy coding is performed on the packetized frame to generate video packets including data packets and redundant packets for transmission to the reception apparatus.
    Type: Application
    Filed: April 17, 2018
    Publication date: August 16, 2018
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Yongfang SHI, Anlin Gao, Jing Lv, Jingchang Chen, Jian He, Chenchen Gu, Xunan Mao, Haibo Deng, Licai Guo, Chao Dai, Xun Zhang
  • Patent number: 9904065
    Abstract: A refractive lens for displaying three-dimensional images (3D) comprises a first substrate, a second substrate, and a refractive layer configured between the first substrate and the second substrate and configured as a plurality of lens units of the refractive lens. The refractive lens is capable of being coupled to a first display panel having a pixel unit pitch A and a second display panel having a pixel unit pitch B to display the 3D images, the pixel unit pitch A being different from the pixel unit pitch B. Each lens unit of the refractive lens has an equal length p, and p is a common multiple of 2*A and 2*B. Each lens unit of the refractive lens is driven by a same driving voltage.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: February 27, 2018
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zengjian Jin, Chao Dai, Yu Zong, Hongmin Zhang, Hongkun Xiang
  • Patent number: 9898987
    Abstract: A gate driving circuit is provided, where includes a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, a gate driving signal of a first scan line and a first cascading signal are respectively transmitted by a first pull up module and a first down transmitting module, and a gate driving signal of a second scan line and a second cascading signal are respectively transmitted by a second pull up module and a second down transmitting module. By the above manner, the disclosure is capable of decreasing a component quantity of GOA circuit, thus achieving the ultra-narrow frame design.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 20, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Patent number: 9858880
    Abstract: The present invention provides a GOA circuit based on oxide semiconductor thin film transistor, which cannot only prevent the electrical leakage to raise the reliability of the GOA circuit but also avoid the generation of the crossfire current in the non-function period by shorting the gate and the source of the fortieth thin film transistor (T40) in the first pull-down module (400) for avoiding the influence of the constant high voltage level (DCH) to the pull-down holding of the first node by electrically coupling both the gate and the drain of the seventy-fifth thin film transistor (T75) in the pull-down holding module (600) to the first node (Q(N)), and clearing the interference of the residual charge to the GOA circuit by providing the reset module (700) to reset the first node (Q(N)) before generating the each frame to guarantee the normal output of the GOA circuit and the normal display of the image.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: January 2, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Dai
  • Patent number: 9847068
    Abstract: A scan driving circuit includes a repair assembly, a pull-up assembly, a pull-up control assembly that drives the pull-up assembly, a pull-down maintaining assembly, and a reference low-level signal. When the pull-down maintaining assembly turns off in a work stage of a current scanning line, the repair assembly turns off. When the pull-down maintaining assembly turns on in the work stage of the current scanning line, the repair assembly is connected with the pull-down maintaining assembly. In the work stage of the current scanning line, the reference low-level signal is sent to the repair assembly via the turn-off unit, and turns off the pull-down maintaining assembly through the repair assembly.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: December 19, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Chao Dai
  • Patent number: 9805679
    Abstract: The disclosure is related to a scan driving circuit for an oxide semiconductor thin film transistor and the NOR gate logic operation circuit thereof. The NOR gate logic operation circuit includes a first invertor and a second invertor applied in the pull down holding circuit of the GOA circuit, and a plurality of transistors. The combination of the NTFT and the invertor displaces the original function of the PMOS element to realize a characteristic similar to an original COMS NOR operation circuit, thereby solving a design problem of the logic operation circuit using a IGZO TFT single element, such that a larger scale digital integrated circuit is further suitably integrated into the liquid crystal display.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 31, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chao Dai
  • Patent number: 9786692
    Abstract: The invention provides a scan driving circuit for an oxide semiconductor thin film transistor and a NAND logic operation circuit thereof. The NAND logic operation circuit includes: a first inverter and a second inverter applied to a pull-down holding circuit of a GOA circuit, and multiple transistors. The invention uses the combination of NFTF and inverter to replace a function of original PMOS elements and thereby achieves characteristics similar to that of the original CMOS NAND operation circuit. Accordingly, the invention can solve the design problem of IGZO TFT single type of device logic operation circuit and thus is more suitable for integrating a large scale digital integrated circuit on a liquid crystal display device.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 10, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chao Dai
  • Patent number: 9779682
    Abstract: The present invention provides a GOA circuit with forward-backward scan function. In the GOA unit circuit of every stage, the pull-up controlling module comprises two thin film transistors respectively controlling the forward, backward scans. With proper received signals, as the thin film transistor controlling the forward scan is on, the GOA circuit performs forward scan from the GOA unit circuit of the first stage to the GOA unit circuit of the last stage, and as the thin film transistor controlling the backward scan is on, the GOA circuit performs backward scan from the GOA unit circuit of the last stage to the GOA unit circuit of the first stage. Thurs, the GOA circuit possessing functions of forward scan and backward scan at the same time can be achieved to expand the application field of the GOA circuit.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: October 3, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Dai
  • Patent number: 9767751
    Abstract: The present invention provides a GOA circuit based on oxide semiconductor thin film transistor. By adding the fifty-fifth, fifty-sixth, fifty-seventh thin film transistors (T55, T56, T57) respectively corresponding to the fourth, fifth, second nodes (S(N), K(N), P(N)) in the pull-down holding module (600). The fifty-fifth, fifty-sixth, fifty-seventh thin film transistors (T55, T56, T57) are controlled with the stage transfer signal of the GOA unit circuit of the former N?1th stage or the scan driving signal of the GOA unit circuit of the former N?1th stage to pull down the voltage levels of the fourth, fifth, second nodes (S(N), K(N), P(N)) under circumstance that the first node (Q(N)) is not completely boosted to rapidly deactivate the pull-down holding module (600) for ensuring the normal boost of the voltage level of the first node (Q(N)). The first node (Q(N)) is guaranteed to be high voltage level in the functioning period, and thus, the normal output of the GOA circuit is ensured.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: September 19, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Dai
  • Patent number: 9767756
    Abstract: The present disclosure relates to a scanning driving circuit and a LCD. The scanning driving circuit includes first driving circuits and second diving circuits, each of the first driving circuits connects with each of the second diving circuits, and the first driving circuit and the second diving circuit are alternately arranged. Each of the first driving circuit and second diving circuit includes a pull-up module, a pull-up controlling module for driving the pull-up module, a reference voltage end, and a first pull-down maintaining unit. Each of the first driving circuit also includes a first pull-down maintaining controlling unit. The first and second driving circuit share the first pull-down maintaining control unit of the first driving circuit. In this way, the scanning driving circuit is stable, and the structure of the circuit is simple. The power consumption may be reduced and the border of the LCD may be narrowed down.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: September 19, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Patent number: 9767754
    Abstract: Disclosed is a scan driving circuit for oxide semiconductor thin film transistors, in which a pull-down holding circuit part includes a main inverter and an auxiliary inverter. By introducing a constant low voltage level (DCL) and setting the constant low voltage level (DCL) less than the second negative voltage level (VSS2), which is in turn less than the first negative voltage level (VSS1), the influence of electrical property of the oxide semiconductor thin film transistors to the scan driving circuit, particularly the bad function due to the electric leakage issue, can be prevented to ensure that the pull-down holding circuit part can be normally pulled down in the functioning period and at higher voltage level in a non-functioning period to effectively maintain the first node (Q(N)) and the output end (G(N)) at low voltage level.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 19, 2017
    Assignee: Shenzhen China Star Optelectronics Technology Co., Ltd.
    Inventor: Chao Dai
  • Patent number: 9767755
    Abstract: A scan driving circuit for oxide semiconductor thin film transistors includes a pull-down holding circuit part including a first pull-down holding module and a second pull-down holding module to help extend the lifetime of the circuit. The first pull-down holding module includes a first main inverter and a first auxiliary inverter introducing a constant low voltage level. The second pull-down holding module includes a second main inverter and a second auxiliary inverter introducing a constant low voltage level. The constant low voltage level is set lower than a second negative voltage level, which is in turn lower than a first negative voltage level. An influence of electrical property of the oxide semiconductor thin film transistors on the scan driving circuit, particularly poor functioning resulting from an electric leakage issue, can be prevented.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 19, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chao Dai
  • Publication number: 20170256218
    Abstract: A gate driving circuit is provided, where includes a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, a gate driving signal of a first scan line and a first cascading signal are respectively transmitted by a first pull up module and a first down transmitting module, and a gate driving signal of a second scan line and a second cascading signal are respectively transmitted by a second pull up module and a second down transmitting module. By the above manner, the disclosure is capable of decreasing a component quantity of GOA circuit, thus achieving the ultra-narrow frame design.
    Type: Application
    Filed: September 29, 2015
    Publication date: September 7, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chao DAI