Patents by Inventor Kai Chen

Kai 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: 11662828
    Abstract: A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: May 30, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Tien-Chung Yang, Chia-Kai Chen, En-Feng Hsu, Chen-Lung Liu
  • Publication number: 20230158942
    Abstract: Provided herein is a headlamp assembly comprising a housing that encloses: a sensor that acquires data associated with a surrounding environment; a light source that illuminates a field of view comprising a portion of the surrounding environment; and one or more processors that analyze the acquired data and determine a direction, field of view, power, or an intensity of the illumination of the portion based on the analyzed data.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: Timofey Uvarov, Kai Chen
  • Publication number: 20230158470
    Abstract: A continuous synthesis system of urea, including: a reactor, a mixing buffer tank for accommodating a first raw material, a feeding pump for pumping the first raw material to the reactor, a pressure regulating valve connected to the reactor to transfer a second raw material and regulate a pressure of the second raw material, a first heat exchanger connected to the reactor to regulate a temperature inside the reactor to a first preset temperature, and a back pressure valve connected to an end of the reactor away from the feeding pump to maintain a pressure of the continuous synthesis system at a preset pressure. The second raw material is gaseous. The second raw material is fed to the reactor through the pressure regulating valve to react with the first raw material in the reactor to generate a target product.
    Type: Application
    Filed: December 16, 2022
    Publication date: May 25, 2023
    Inventors: Jing QING, Hengzhi YOU, Kai CHEN, Quansheng HAN, Guowei LI, Jingyuan LIAO, Xuelei JIA, Desheng DAI
  • Patent number: 11656497
    Abstract: An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 23, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Lung-Kuan Lai, Ting-Kai Chen, Jiun-Hong Lin
  • Patent number: 11646828
    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices (e.g., base stations, user equipment (UEs), etc.) may utilize polar coding along with hybrid automatic repeat request (HARQ) techniques. In these systems, a device may encode bits for transmission by mapping information and parity check bits to a first set of polarized bit channels of a polar code. If this transmission is not successfully received at a decoding device, the encoding device may generate a HARQ retransmission. The device may copy information bits to a second set of polarized bit channels of a second polar code containing the first polar code and may assign parity check bits to the second set of bit channels for the copied information bits. These additional parity check bits for the repeated information bits may increase transmission reliability and may support improved early termination at the decoding device.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: May 9, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Jian Li, Changlong Xu, Jing Jiang, Kai Chen, Liangming Wu, Hao Xu
  • Patent number: 11646830
    Abstract: A device may identify that an incremental redundancy hybrid automatic repeat request (IR-HARQ) scheme is used in association with sequential transmissions of an information bit vector to or from another wireless device, where each transmission in the scheme is associated with a resource size. The device may identify a mother code length for a polar code based at least in part on an aggregate resource size associated with the sequential transmissions. The device may identify an adjusted bit index set for the polar code based at least in part on the IR-HARQ scheme. The device may transmit (or receive), for each transmission of the information bit vector, a respective subset of encoded bits generated by mapping the information bit vector to a set of polarized bit channels of the polar code in accordance with the bit index set.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 9, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Kai Chen, Jian Li, Changlong Xu, Liangming Wu, Hao Xu
  • Patent number: 11646823
    Abstract: A method, apparatus, and computer-readable medium for transmitting coded messages to a receiving device including constructing a data vector including a plurality of data bits, transforming the data vector into a u-domain vector, applying a mask to the u-domain vector, encoding the masked u-domain vector with polar encoding to generate a transmission vector, and transmitting, to the receiving device, the transmission vector.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 9, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Kai Chen, Liangming Wu, Changlong Xu, Jian Li, Hao Xu
  • Publication number: 20230138843
    Abstract: A source driver includes a plurality of output terminals and a plurality of driving channels. Each of the plurality of driving channels is coupled to an output terminal among the plurality of output terminals and includes an output buffer, an output enable switch and a charge sharing circuit. The output enable switch is coupled between the output buffer and the corresponding output terminal. The charge sharing circuit is coupled to the corresponding output terminal. Wherein, the charge sharing circuits of at least two of the plurality of driving channels are commonly coupled to a charge sharing bus.
    Type: Application
    Filed: August 5, 2022
    Publication date: May 4, 2023
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Yen-Kai Chen, Jui-Chan Chang, Chih-Hsien Chou
  • Patent number: 11641457
    Abstract: A method for high-precision true color three dimensional reconstruction of mechanical component. Firstly performs image acquisition: the left and right high-resolution grayscale cameras are fixed at same height and spaced at certain distance, an optical transmitter fixed between the two grayscale cameras, and low-resolution color camera fixed above optical transmitter, thus images of measured high-precision mechanical component are shot. Then performs image processing: all images are transmitted to a computer, which uses image processing to record surface information of measured high-precision mechanical component in the point cloud by high-precision true color three-dimensional reconstruction, which reflects color texture information of the surface, so as to realize the non-contact high-precision true color three dimensional reconstruction of high-precision mechanical component.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: May 2, 2023
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Chun Yin, Yuhua Cheng, Zeqi Wang, Xutong Tan, Kai Chen, Gen Qiu, Jianhao Luo, Junjie Liu, Zhibo Li, Aolin Yang
  • Publication number: 20230128037
    Abstract: A transparent keycap manufacturing method includes adhering an opaque base to a fixing film, performing a laser engraving process or an etching process on a bottom surface of the opaque base to generate a continuous hollow pattern region and a pattern component surrounded by the continuous hollow pattern region, coating transparent glue on the bottom surface of the opaque base to fill the continuous hollow pattern region with the transparent glue, adhering a transparent base to the bottom surface of the opaque base, and removing the fixing film from the opaque base.
    Type: Application
    Filed: April 29, 2022
    Publication date: April 27, 2023
    Applicant: DARFON ELECTRONICS CORP.
    Inventors: Shih-Kai Chen, Tsai-Jung Hu
  • Patent number: 11635853
    Abstract: A touch sensing method, apparatus for a touch panel, and electronic device are provided. The method includes: determining a first number of to-sense touch sensing circuits, and determining a second number of reference touch sensing circuits, each to-sense touch sensing circuit having a corresponding reference touch sensing circuit; causing each to-sense touch sensing circuit to receive a touch excitation signal TX1, and apply TX1 to a corresponding touch sensitive cell and receive a touch sensing signal therefrom, and output a first output signal; causing each reference touch sensing circuit to receive a touch reference signal DC/TX2, and apply DC/TX2 to a corresponding touch sensitive cell and receive a reference sensing signal therefrom, wherein DC/TX2 and TX1 are different signals; and obtaining, according to respective first and second output signals, a capacitance difference of capacitances sensed by each to-sense touch sensing circuit and its corresponding reference touch sensing circuit.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 25, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hung-Kai Chen, Yu-Huang Chen, Feng-Lin Chan
  • Publication number: 20230120816
    Abstract: In some examples, an electronic device includes a wireless charger, a detector, and a controller. The controller is to detect a peripheral device via the detector and, in response to detecting the peripheral device via the detector, determine an operation mode of the wireless charger, the operation mode including a power saving mode, a standby mode, and a charging mode.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventors: Yen-Chi CHEN, Chi-Chu CHEN, Hui-Jen TSENG, Wen-Hua NI, Jun-Hung CHOU, Cheng-Kai CHEN, Cheng-Han TSAI
  • Publication number: 20230121853
    Abstract: A locking device includes a base, a hook pivoted to the base to move between an engaging position and a releasing position, a sliding member slidably disposed at the base and locked to the base to maintain the hook at the releasing position, a knob pivoted to the base, and an actuating member slidably disposed at the base. The sliding member slides relative to the base to be disengaged from the hook or to drive the hook to be transported to the releasing position. The knob rotates relative to the base and blocks the sliding member from sliding or allows the sliding member to slide relative to the base. The actuating member receives a force to slide relative to the base and drives the sliding member to be disengaged from the base and moved and disengaged from the hook to allow the hook to be transported to the engaging position.
    Type: Application
    Filed: June 1, 2022
    Publication date: April 20, 2023
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Hung-Yun Wu, Pi-Nan Lee, Kai-Chen Tien
  • Publication number: 20230124002
    Abstract: A continuous-flow synthesis method of 13C-urea, including: (S1) mixing sulphur and a methanol solution containing NH3 in a feed kettle to obtain a slurry; or mixing ammonia gas, sulphur and methanol in a feed kettle to obtain a slurry; (S2) feeding the slurry into a mixing unit; and feeding 13CO into the mixing unit to obtain a three-phase mixture; (S3) mixing the three-phase mixture in the mixing unit evenly; feeding the three-phase mixture into a continuous-flow reactor for reaction to obtain a reaction product; and (S4) feeding the reaction product into a gas-liquid separator for gas-liquid separation, and collecting a liquid phase as a crude product solution; and subjecting the liquid phase to purification to obtain the 13C-urea.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Inventors: Jing QING, Hengzhi YOU, Kai CHEN, Quansheng HAN, Guowei LI, Jingyuan LIAO, Xuelei JIA, Desheng DAI
  • Publication number: 20230095658
    Abstract: Provided herein is an additive manufacturing method of making a three-dimensional object comprising polyurea, comprising: (a) dispensing a one part (1K) dual cure resin into a stereolithography apparatus, the resin comprising or consisting essentially of a photoinitiator, a reactive blocked polyisocyanate, and optionally a polyepoxide, the reactive blocked polyisocyanate comprising the reaction product of a polyisocyanate and an amine or hydroxyl (meth)acrylate or (meth)acrylamide monomer blocking agent; (b) additively manufacturing from said resin an intermediate object comprising the light polymerization product of said reactive blocked polyisocyanate; (c) optionally cleaning said intermediate object; and (d) reacting said polymerization product in said intermediate with water to generate polyamine in situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and hereby produce a three-dimensional object comprising polyurea.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 30, 2023
    Inventors: Andrew Gordon Wright, Kai Chen, Jason P. Rolland
  • Patent number: 11616030
    Abstract: A method for making a three-dimensional (3-D) module includes the steps of: A) forming a laminate of alternate ceramic tape layers and internal electrode layers on a substrate; B) etching said laminate to form first and second capacitor stacks at said first and second locations; C) firing said first and second capacitor stacks integrally; D) forming first and second pairs of external electrodes on said first and second capacitor stacks, respectively.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 28, 2023
    Assignee: Southern University of Science and Technology
    Inventors: Guobiao Zhang, Hongyu Yu, Shengming Zhou, Yuejin Guo, Kai Chen, Yida Li, Jun Lan
  • Publication number: 20230089961
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing content presentation.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Inventors: Scott Tadashi Davies, Kai Chen, Michael Jee-Kai Wang, Wei Jiang, Maryam Tavafi, Peter Zaimis Tipton
  • Patent number: 11609108
    Abstract: A sensor enclosure comprises a cover and a structure. The structure can be encased by the cover. The structure comprises a frame, a ring, and one or more anchoring posts. The frame can be configured to mount one or more sensors. The ring, disposed peripherally to the frame, can be operatively coupled to the cover. The ring can include a drainage ring plate that drains rainwater accumulated on the cover away from the sensor enclosure. The one or more anchoring posts, disposed underneath the frame and the ring, can be used to anchor the sensor enclosure to a vehicle.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 21, 2023
    Assignee: Pony AI Inc.
    Inventors: Zhongnan Hu, Zuoteng Chen, Nengxiu Deng, Cheng Jin, Kai Chen, Yubo Zhang, Xiang Yu, Tiancheng Lou, Jun Peng
  • Publication number: 20230078173
    Abstract: The present disclosure provides antibodies, including antibody fusions, which specifically bind to human PD-L1 protein (huPD-L1) and are capable of decreasing, inhibiting, and/or fully-blocking immune regulatory effects mediated by PD-L1, such as binding to the immune checkpoint molecule PD-1 in the tumor microenvironment. Additionally, the antibodies include fusions with the cytokine inhibitory factor, IL10, which can replenish and/or activate CD8+ T-cell cytotoxicity in the tumor microenvironment. The present disclosure also provides methods of using the antibodies (and compositions thereof) to treat diseases and conditions responsive to decreasing, inhibiting and/or blocking immune regulatory function or activity mediated by PD1 binding to PD-L1.
    Type: Application
    Filed: July 21, 2022
    Publication date: March 16, 2023
    Applicant: ELIXIRON IMMUNOTHERAPEUTICS (HONG KONG) LIMITED
    Inventors: Hung-Kai CHEN, Hong-Sen CHEN, Huey-Wen HSIAO
  • Publication number: 20230084371
    Abstract: Provided herein according to some embodiments is a dual cure additive manufacturing resin, comprising: (i) a light polymerizable component, (ii) a photoinitiator, (iii) a heat polymerizable component, and (iv) a non-reactive diluent, which resin is useful for the production of three-dimensional objects by additive manufacturing. Methods of using the same are also provided.
    Type: Application
    Filed: October 18, 2022
    Publication date: March 16, 2023
    Inventors: Andrew Gordon Wright, Kai Chen, Bob E. Feller