Patents by Inventor Chien-An Liu

Chien-An Liu 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: 20230326890
    Abstract: Various embodiments of the present disclosure are directed towards a three-dimensional (3D) IC comprising semiconductor substrates with different bandgaps. The 3D IC chip comprises a first IC chip and a second IC chip overlying and bonded to the first IC chip. The first IC chip comprises a first semiconductor substrate with a first bandgap, and further comprises and a first device on and partially formed by the first semiconductor substrate. The second IC chip comprises a second semiconductor substrate with a second bandgap different than the first bandgap, and further comprises a second device on the second semiconductor substrate.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 12, 2023
    Inventors: Yao-Chung Chang, Shih-Chien Liu, Chia-Jui Yu, Chun-Lin Tsai
  • Patent number: 11769400
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: September 26, 2023
    Assignee: Geotab Inc.
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20230261083
    Abstract: A method of manufacturing a semiconductor device includes providing a substrate. A channel layer is formed on the substrate. A barrier layer is formed on the channel layer. A source and a drain are formed on the barrier layer. A recess is formed in the barrier layer, in which the recess has a bottom surface, and a portion of the barrier underneath the recess has a thickness. A first dielectric layer is formed to cover the bottom surface of the recess. A charge trapping layer is formed on the first dielectric layer. A first ferroelectric material layer is formed on the charge trapping layer. A second dielectric layer is formed on the first ferroelectric material layer. A second ferroelectric material layer is formed on the second dielectric layer. A gate is formed over the second ferroelectric material layer.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 17, 2023
    Inventors: Edward Yi CHANG, Shih-Chien LIU, Chung-Kai HUANG, Chia-Hsun WU, Ping-Cheng HAN, Yueh-Chin LIN, Ting-En HSIEH
  • Patent number: 11670699
    Abstract: A semiconductor device includes a substrate, a channel layer, a barrier layer, a ferroelectric composite material layer, a gate, a source and a drain. The channel layer and the barrier layer having a recess are disposed on the substrate in sequence. The ferroelectric composite material layer including a first dielectric layer, a charge trapping layer, a first ferroelectric material layer, a second dielectric layer and a second ferroelectric material layer is disposed in the recess. The gate is disposed on the ferroelectric composite material layer. The source and the drain are disposed on the barrier layer.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: June 6, 2023
    Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Edward Yi Chang, Shih-Chien Liu, Chung-Kai Huang, Chia-Hsun Wu, Ping-Cheng Han, Yueh-Chin Lin, Ting-En Hsieh
  • Publication number: 20230100052
    Abstract: A method includes encrypting a first message that contains a first public key of a first peer, by using a second public key of a second peer; and decrypting a second message sent from the second peer by using a first private key paired with the first public key. The second message may be encrypted at the second peer by using the first public key, and may contain an encrypted data encrypted by the second peer using the second public key and hashed by using a secret key of the first peer. The first public key, the second public key, the first private key and the secret key may be physically unclonable function (PUF)-based keys.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Inventor: MEI-CHIEN LIU
  • Publication number: 20230082960
    Abstract: Systems and methods for associating vehicle trip data with a base map are provided herein. Systems and methods for providing vehicle trip data showing the greatest usage of routes between an origin and destination are also provided. Systems and methods for predicting a speed limit of a road based on vehicle trip data are also provided. Systems and methods for providing vehicle trip data showing popular stops between an origin and a destination are also provided. Systems and methods for providing contiguous region identification based on vehicle trip data are also provided.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 16, 2023
    Applicant: Geotab Inc.
    Inventors: Daniel Jacob Lewis, Chien An Liu
  • Publication number: 20230048627
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Patent number: 11548308
    Abstract: The present invention relates generally to a printing system, and more specifically to an ordering of color-forming layers in a direct thermal printing medium. The present invention provides a direct thermal print medium with an ordering of the color layers that improves the perceived image sharpness and color uniformity of prints.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: January 10, 2023
    Assignee: ZINK HOLDINGS, LLC
    Inventors: Brian D. Busch, Chien Liu, Suhail S. Saquib, Stephen J. Telfer, William T. Vetterling
  • Patent number: 11536811
    Abstract: A distance measuring device includes a pulsed laser source, a light receiving unit and a computing module. The pulsed laser source emits a laser pulse to a target in accordance with a predetermined period. The light receiving unit has a photon receiving type of light receiving element that receives incident light and outputs a binary pulse, and the binary pulse is used to indicate whether a photon receiving event occurs. The computing module is configured to receive the binary pulse and determine whether an inter-period coincidence event occurs, and the inter-period coincidence event is defined by detecting a plurality of photon receiving events exceeding a predetermined count, on relative positions in a predetermined period number of the predetermined periods. If the calculation module determines that the inter-period coincidence event occurs, a distance of the target is calculated according to time information related to the inter-period coincidence event.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 27, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Chia-Ming Tsai, Yu-Wei Chen, Yung-Chien Liu
  • Patent number: 11533169
    Abstract: A method includes encrypting a first message that contains a first public key of a first peer, by using a second public key of a second peer; and decrypting a second message sent from the second peer by using a first private key paired with the first public key. The second message includes a write command and is encrypted at the second peer by using the first public key, and contains an encrypted data encrypted by the second peer using the second public key and hashed by using a secret key of the first peer. The first public key, the second public key, the first private key and the secret key are physically unclonable function (PUF)-based keys.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: December 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventor: Mei-Chien Liu
  • Patent number: 11527153
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: December 13, 2022
    Assignee: Geotab Inc.
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20220383735
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Application
    Filed: July 14, 2021
    Publication date: December 1, 2022
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20220383737
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Application
    Filed: July 14, 2021
    Publication date: December 1, 2022
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20220383734
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Application
    Filed: July 14, 2021
    Publication date: December 1, 2022
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20220336600
    Abstract: Various embodiments of the present disclosure are directed towards a two-dimensional carrier gas (2DCG) semiconductor device comprising an ohmic source/drain electrode with a plurality of protrusions separated by gaps and protruding from a bottom surface of the ohmic source/drain electrode. The ohmic source/drain electrode overlies a semiconductor film, and the protrusions extend from the bottom surface into the semiconductor film. Further, the ohmic source/drain electrode is separated from another ohmic source/drain electrode that also overlies the semiconductor film. The semiconductor film comprises a channel layer and a barrier layer that are vertically stacked and directly contact at a heterojunction. The channel layer accommodates a 2DCG that extends along the heterojunction and is ohmically coupled to the ohmic source/drain electrode and the other ohmic source/drain electrode. A gate electrode overlies the semiconductor film between the ohmic source/drain electrode and the other source/drain electrode.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 20, 2022
    Inventors: Shih-Chien Liu, Yao-Chung Chang, Chun Lin Tsai
  • Publication number: 20220163643
    Abstract: A LiDAR and a method of a fast photon-count integration for a LiDAR are disclosed. The proposed method, wherein the LiDAR includes a laser, includes: providing a target and the LiDAR; causing the laser to fire a laser pulse towards the target according to a random mechanism; and causing an interval between two adjacent laser pulses to be less than a time that the laser spent for a round trip of maximum unambiguous range to speed up a detection and a ranging of the target.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 26, 2022
    Inventors: Tzu-Hsien Sang, Chia-Ming Tsai, Yung-Chien Liu, Ningkai Yang, Ting-Yuan Wang
  • Patent number: 11340662
    Abstract: A portable electronic device including a first body, a second body, a hinge mechanism, a control unit, a sensor unit, a sterilization module, and a shielding module, is provided. The first body has a first inner surface. The second body has a second inner surface. The hinge mechanism is connected between the first body and the second body. The control unit is disposed in the first body or the second body. The sensor unit is disposed in the first body or the second body and coupled to the control unit. The sterilization module is disposed at the hinge mechanism and coupled to the control unit, the sterilization module is configured to generate light for sterilization and disinfection. The shielding module is disposed on the hinge mechanism and the shielding module can move relative to the hinge mechanism.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 24, 2022
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Yi-Chun Lin, Ya-Hui Tseng, I-Kai Liu, Po-Ching Chiang, Chien-Lun Sun, Yen-Kang Chen, Jih-Houng Lee, Chih-Chien Liu
  • Patent number: 11335142
    Abstract: A traffic analysis system analyzes location data from a plurality of vehicles to determine journeys made by the vehicles. Vehicles may make one or more rest stops during a journey. The traffic analysis system compares rest periods to journey criteria to determine whether a rest period delineates the end of a journey, or whether a rest period is still within the journey. In this way, a plurality of trips can be chained together into a journey to provide more accurate analysis of traffic patterns.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: May 17, 2022
    Assignee: Geotab Inc.
    Inventors: Shweta Pravinchandra Shah, Daniel J. Lewis, Jean Pilon-Bignell, Pooria Poorsarvi Tehrani, Chien An Liu, Robert Bradley, Terence Michael Branch
  • Publication number: 20220093434
    Abstract: A supporting shelf module includes a plurality of plastic supporting plates parallelly arranged in a height direction, and at least one pair of metal-made connectors located at two opposite ends of the supporting plates in the height direction. The connectors in one pair are correspondingly located in two horizontal planes perpendicular to the height direction. A wafer container is also disclosed, which includes a container body having at least two sets of the supporting shelf modules mounted therein, at least two top retaining brackets and at least two bottom retaining grooves provided on an inward side of a top and a bottom panel of the container body, respectively. The supporting shelf module has upper ends engaged with the top retaining brackets and lower ends engaged with and limited to the bottom retaining grooves in an engaging direction. Thus, the tolerance problem of the conventional wafer shelf can be solved.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 24, 2022
    Inventors: MING-CHIEN CHIU, EN-NIEN SHEN, YUNG-CHIN PAN, CHENG-EN CHUNG, PO-TING LEE, WEI-CHIEN LIU, TZU-WEI HUANG
  • Patent number: D976001
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 24, 2023
    Assignee: GUDENG PRECISION INDUSTRIAL CO., LTD.
    Inventors: Ming-Chien Chiu, Yung-Chin Pan, Wei-Chien Liu, Tzu-Ning Huang