Patents by Inventor Chih-An Liao

Chih-An Liao 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: 11298787
    Abstract: An adjustable workpiece support system includes an adjustable support apparatus, an analysis support point module, a coordinate post-processing module and a control module. The adjustable support apparatus has a group of support devices for supporting a supported workpiece, the each support device being adjustable in height and angle. The analysis support point module is used to import a computer-aided design file of the supported workpiece, and analyze the computer-aided design file to obtain a group of support points of the supported workpiece. The coordinate post-processing module is configured to calculate the support coordinates of the each support device corresponding to the group of support points. The control module is configured to receive the support coordinates of the each support device, and adjust the height and angle of the each support device to support the supported workpiece, so that the amount of deformation of the supported workpiece is the minimum.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: April 12, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-Ting Chen, Chien-Chih Liao, Pei-Yin Chen, Bo-Jyun Jhang, Jen-Ji Wang
  • Publication number: 20220050506
    Abstract: An electronic device display may have pixels formed from crystalline semiconductor light-emitting diode dies, organic light-emitting diodes, or other pixel structures. The pixels may be formed on a display panel substrate. A display panel may extend continuously across the display or multiple display panels may be tiled in two dimensions to cover a larger display area. Interconnect substrates may have outwardly facing contacts that are electrically shorted to corresponding inwardly facing contacts such as inwardly facing metal pillars associated with the display panels. The interconnect substrates may be supported by glass layers. Integrated circuits may be embedded in the display panels and/or in the interconnect substrates. A display may have an active area with pixels that includes non-spline pixels in a non-spline display portion located above a straight edge of the display and spline pixel in a spline display portion located above a curved edge of the display.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 17, 2022
    Inventors: Elmar Gehlen, Zhen Zhang, Francois R. Jacob, Paul S. Drzaic, Han-Chieh Chang, Abbas Jamshidi Roudbari, Anshi Liang, Hopil Bae, Mahdi Farrokh Baroughi, Marc J. DeVincentis, Paolo Sacchetto, Tiffany T. Moy, Warren S. Rieutort-Louis, Yong Sun, Jonathan P. Mar, Zuoqian Wang, Ian D. Tracy, Sunggu Kang, Jaein Choi, Steven E. Molesa, Sandeep Chalasani, Jui-Chih Liao, Xin Zhao, Izhar Z. Ahmed
  • Patent number: 11247291
    Abstract: The disclosed technology generally relates to welding, and more particularly to a consumable welding wire for metal arc welding, and a method and a system for metal arc welding using the consumable welding wire. In one aspect, a method of arc welding includes providing a welding wire comprising one or more alkaline earth metal elements. The method additionally includes applying power to the welding wire to generate a plasma arc sufficient to melt the welding wire. The method further includes depositing molten droplets formed by melting the welding wire onto a workpiece at a high deposition rate while regulating to maintain a substantially constant power delivered to the plasma arc.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: February 15, 2022
    Assignee: LINCOLN GLOBAL, INC.
    Inventors: John Benjamin Schaeffer, Steven R. Peters, Badri K. Narayanan, Yen-Chih Liao
  • Publication number: 20220029054
    Abstract: A light-emitting device includes a substrate including a top surface; a semiconductor stack including a first semiconductor layer, an active layer and a second semiconductor layer formed on the substrate, wherein a portion of the top surface is exposed; a distributed Bragg reflector (DBR) formed on the semiconductor stack and contacting the portion of the top surface of the substrate; a metal layer formed on the distributed Bragg reflector (DBR), contacting the portion of the top surface of the substrate and being insulated with the semiconductor stack; and an insulation layer formed on the metal layer and contacting the portion of the top surface of the substrate.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Inventors: Che-Hung Lin, Chien-Chih Liao, Chi-Shiang Hsu, De-Shan Kuo, Chao-Hsing Chen
  • Publication number: 20220006859
    Abstract: A distributed computing system uses dynamically calculates a subset size for each of a plurality of load balancers. Each of a plurality of load balancers logs requests from client devices for connections to back-end servers and periodically sends a request report to a traffic aggregator, which aggregates the report requests from the load balancers in the corresponding zone. Each traffic aggregator sends the aggregated request data to a traffic controller, which aggregates the request data to determine a total number of requests received at the system. The total request data is transmitted through each traffic aggregator to each load balancer instance, which calculates a percentage of the total number of requests produced by the load balancer and determines a subset size based on the calculated percentage.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Prashant Varanasi, Chien-Chih Liao, Simon Jeffrey Newton
  • Publication number: 20220000714
    Abstract: A method for improving blood flow of the cerebral cortex is provided in the present invention. The method for improving blood flow of the cerebral cortex includes the following steps: stimulating a predetermined site of a subject in need thereof to improve blood flow of the cerebral cortex of the subject in need thereof, wherein the predetermined site is Shousanli (LI10) acupoint.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 6, 2022
    Inventor: Yan-Chih LIAO
  • Publication number: 20210350575
    Abstract: An example system includes a plurality of cameras to capture images of a target object and a controller to connect to the plurality of cameras. The controller is to control the plurality of cameras to capture the images of the target object. The controller is further to determine a pose of a camera of the plurality of cameras. The system further includes a platform to support the target object. The platform includes a plurality of unique markers arranged in a predetermined layout. The controller is further to determine the pose of the camera based on unique markers of the plurality of unique markers that are detected in an image captured by the camera.
    Type: Application
    Filed: February 1, 2019
    Publication date: November 11, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Yun David Tang, Vijaykumar Nayak, Shaymus Alwan, Javier Urquizu, Yow Wei Cheng, Andy Yi-Chih Liao
  • Publication number: 20210343913
    Abstract: A light-emitting device comprises a substrate comprising a sidewall, a first top surface, and a second top surface, wherein the second top surface is closer to the sidewall of the substrate than the first top surface to the sidewall of the substrate; a semiconductor stack formed on the substrate comprising a first semiconductor layer, an active layer, and a second semiconductor layer; a dicing street surrounding the semiconductor stack, and exposing the first top surface and the second top surface of the substrate; a protective layer covering the semiconductor stack; a reflective layer comprising a Distributed Bragg Reflector structure covering the protective layer; and a cap layer covering the reflective layer, wherein the second top surface of the substrate is not covered by the protective layer, the reflective layer, and the cap layer.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 4, 2021
    Inventors: Hsin-Ying WANG, Chih-Hao CHEN, Chien-Chih LIAO, Chao-Hsing CHEN, Wu-Tsung LO, Tsun-Kai KO, Chen OU
  • Publication number: 20210343906
    Abstract: A light-emitting device comprises a substrate comprising a top surface and a sidewall; a semiconductor stack formed on the top surface of the substrate comprising a first semiconductor layer, an active layer and a second semiconductor layer; a dicing street surrounding the semiconductor stack and exposing the top surface of the substrate; a protective layer covering the semiconductor stack and the dicing street; a reflective layer comprising a Distributed Bragg Reflector structure and covering the protective layer; and a cap layer covering the reflective layer, wherein the reflective layer comprises an uneven portion adjacent to the sidewall of the substrate, and the uneven portion comprises an uneven thickness.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 4, 2021
    Inventors: Hsin-Ying WANG, Chih-Hao CHEN, Chien-Chih LIAO, Chao-Hsing CHEN, Wu-Tsung LO, Tsun-Kai KO, Chen OU
  • Patent number: 11165860
    Abstract: A distributed computing system uses dynamically calculates a subset size for each of a plurality of load balancers. Each of a plurality of load balancers logs requests from client devices for connections to back-end servers and periodically sends a request report to a traffic aggregator, which aggregates the report requests from the load balancers in the corresponding zone. Each traffic aggregator sends the aggregated request data to a traffic controller, which aggregates the request data to determine a total number of requests received at the system. The total request data is transmitted through each traffic aggregator to each load balancer instance, which calculates a percentage of the total number of requests produced by the load balancer and determines a subset size based on the calculated percentage.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 2, 2021
    Assignee: Uber Technologies, Inc.
    Inventors: Prashant Varanasi, Chien-Chih Liao, Simon Jeffrey Newton
  • Patent number: 11159973
    Abstract: A mobile communication device supporting wireless communications using a first subscriber identity and a second subscriber identity is provided. The mobile communication device includes a Radio Frequency (RF) device and a controller. The controller is coupled to the RF device such that the controller performs the following actions: performing a first measurement on a cell via the RF device by using the first subscriber identity to obtain a first measurement result; determining whether the first measurement result is valid; and based on a result of the determining, performing a second measurement on the cell via the RF device by using the second subscriber identity to obtain a second measurement result.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 26, 2021
    Assignee: MEDIATEK INC.
    Inventors: Chih-Cheng Yang, Tsung-Ming Lee, Wei-Chih Liao
  • Publication number: 20210325735
    Abstract: The present disclosure provides a display device including a liquid crystal panel, a light source, and an optical sensor. The light source includes two light emitting elements for emitting two lights with different wavelengths to the liquid crystal panel. The optical sensor is for sensing one of the lights, and the light source is disposed between the liquid crystal panel and the optical sensor.
    Type: Application
    Filed: March 19, 2021
    Publication date: October 21, 2021
    Inventors: Chien-Chih LIAO, Hsing-Yuan HSU, Po-Yang CHEN, I-An YAO
  • Publication number: 20210326559
    Abstract: Sensing pixels each store a sensing voltage level. A method for driving the plurality of sensing pixels includes providing a plurality of readout scan signals to the plurality of sensing pixels, and providing a plurality of reset scan signals to the plurality of sensing pixels. One of the plurality of readout scan signals enables one of the plurality of sensing pixels to output the sensing voltage level stored in the one of the plurality of sensing pixels. One of plurality of reset scan signals resets the sensing voltage level stored in one of the plurality of sensing pixels. One of the plurality of reset scan signals is generated by converting one of the plurality of readout scan signals with a level shift circuit or one of the plurality of readout scan signals is generated by converting one of the plurality of reset scan signals with a level shift circuit.
    Type: Application
    Filed: March 22, 2021
    Publication date: October 21, 2021
    Inventors: Chien-Chih LIAO, Hsing-Yuan HSU, Po-Yang CHEN, I-An YAO
  • Patent number: 11145789
    Abstract: A light-emitting device includes a substrate including a top surface; a semiconductor stack including a first semiconductor layer, an active layer and a second semiconductor layer formed on the substrate, wherein a portion of the top surface is exposed; a distributed Bragg reflector (DBR) formed on the semiconductor stack and contacting the portion of the top surface of the substrate; a metal layer formed on the distributed Bragg reflector (DBR), contacting the portion of the top surface of the substrate and being insulated with the semiconductor stack; and an insulation layer formed on the metal layer and contacting the portion of the top surface of the substrate.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 12, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Che-Hung Lin, Chien-Chih Liao, Chi-Shiang Hsu, De-Shan Kuo, Chao-Hsing Chen
  • Publication number: 20210313388
    Abstract: A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Chao-Hsing CHEN, I-Lun MA, Bo-Jiun HU, Yu-Ling LIN, Chien-Chih LIAO
  • Publication number: 20210299864
    Abstract: A method for reducing vibration of a robot arm includes: a step of mounting at least one inertia actuator and at least one vibration signal capturing unit to a processing end of a robot arm; a step of applying the at least one vibration signal capturing unit to detect a vibration generated at the processing end of the robot arm so as to generate a vibration signal; a step of applying a central processing unit to evaluate the vibration signal and coordinates of the processing end of the robot arm so as to capture at least one set of corresponding control parameters for calculating at least one output force; and, a step of having the inertia actuator to apply the output force to the processing end of the robot arm for counteracting the vibration at the processing end of the robot arm.
    Type: Application
    Filed: July 15, 2020
    Publication date: September 30, 2021
    Inventors: HUNG-I LU, JEN-JI WANG, CHIEN-CHIH LIAO
  • Patent number: 11128846
    Abstract: A projection display system having a projector, the projector includes a laser light source, a lighting system, and a control circuit. The laser light source has a first laser light source module and a second laser light source module. The first and second laser light source modules provide laser light. The lighting system converts the laser light into image light for displaying an image. The image light includes first polarized light and second polarized light. The control circuit controls the laser light source and the lighting system. The control circuit independently controls the light energy output by the first and second laser light source modules to change the intensity of the first and second polarized light.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: September 21, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Tien-Chih Liao, Chia-Jui Lin
  • Patent number: 11119465
    Abstract: A method for inspecting defects of a machining path is provided. The method includes the following steps. Firstly, a contour mold with a plurality of surface nodes is generated according to a machining program code. Next, a normal vector of each surface node of the contour mold is calculated. Then, a tangent vector of a block of the machining program code corresponding to the normal vector is calculated. Afterwards, an error information is obtained according to a relation between the normal vector and the tangent vector. When the error information is greater than a predetermined value, a defect information is shown on the contour mold.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: September 14, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Cheng-Wei Wang, Kuo-Hua Chou, Chien-Chih Liao, Jen-Ji Wang
  • Publication number: 20210249565
    Abstract: A light-emitting element includes a semiconductor light-emitting stack including a first semiconductor layer, a second semiconductor layer formed on the first semiconductor layer, and an active layer formed therebetween; a first conductive layer disposed on the second semiconductor layer and electrically connecting the second semiconductor layer; a second conductive layer disposed on the second semiconductor layer and electrically connecting the first semiconductor layer; and a cushion part disposed on and directly contacts the first conductive layer, wherein in a top view, the cushion part is surrounded by and electrically isolated from the second conductive layer.
    Type: Application
    Filed: April 27, 2021
    Publication date: August 12, 2021
    Inventors: Chao-Hsing CHEN, Tsung-Hsun CHIANG, Chien-Chih LIAO, Wen-Hung CHUANG, Min-Yen TSAI, Bo-Jiun HU
  • Publication number: 20210234071
    Abstract: An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in a
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Chien-Chih LIAO, Tzu-Yao TSENG, Tsun-Kai KO, Chien-Fu SHEN