Patents by Inventor Shih-Yuan Liu

Shih-Yuan 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: 20240425357
    Abstract: The present application provides an inertial sensor, which comprising an anchor point, a first sensing proof mass, and a second sensing proof mass. The first sensing proof mass and the second sensing proof mass are connected with the anchor point by a corresponding flexible member. Each of the first sensing proof mass and the second sensing proof mass is provided with a groove to create mass imbalance on two sides of the flexible member for sensing accelerations in an out-of-plane direction. By mounting electrodes in a plane direction and in the grooves, in-plane accelerations orthogonal to each other are sensed.
    Type: Application
    Filed: September 5, 2023
    Publication date: December 26, 2024
    Inventors: Shih-Yuan LIU, Chao-Shiun WANG, Shih-Wei LEE
  • Patent number: 12163791
    Abstract: Using a planning circuit of a vehicle, a map is accessed that includes information identifying at least one lane on which vehicles can travel. Using the planning circuit and from the map, a graph representing a driving environment of the vehicle is generated. The graph includes multiple trajectories. At least one trajectory includes a lane change. Each trajectory is a path for the vehicle to move from a first spatiotemporal location to a second spatiotemporal location. The trajectory includes at least one lane alone which the vehicle can move. Using the planning circuit, a trajectory of the multiple trajectories for the vehicle to travel is selected based on an initial vehicle trajectory of the vehicle. The selected trajectory includes a stem. The stem is a portion of the selected trajectory to which the vehicle is configured to adhere. Using the control circuit, the vehicle is moved along the selected trajectory.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: December 10, 2024
    Assignee: Motional AD LLC
    Inventor: Shih-Yuan Liu
  • Patent number: 12135547
    Abstract: Among other things, a determination is made that intervention in an operation of one or more autonomous driving capabilities of a vehicle is appropriate. Based on the determination, a person is enabled to provide information for an intervention. The intervention is caused in the operation of the one or more autonomous driving capabilities of the vehicle.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: November 5, 2024
    Assignee: Motional AD LLC
    Inventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang
  • Publication number: 20240295877
    Abstract: Techniques for operation of a vehicle using machine learning with motion planning include storing, using one or more processors of a vehicle located within an environment, a plurality of constraints for operating the vehicle within the environment. One or more sensors of the vehicle receive sensor data describing the environment. The one or more processors extract a feature vector from the stored plurality of constraints and the received sensor data. The feature vector includes a first feature describing an object located within the environment. A machine learning circuit of the vehicle is used to generate a first motion segment based on the feature vector. A number of violations of the stored plurality of constraints is below a threshold. The one or more processors operate the vehicle in accordance with the generated first motion segment.
    Type: Application
    Filed: May 14, 2024
    Publication date: September 5, 2024
    Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
  • Patent number: 12067810
    Abstract: Among other things, a determination is made that intervention in an operation of one or more autonomous driving capabilities of a vehicle is appropriate. Based on the determination, a person is enabled to provide information for an intervention. The intervention is caused in the operation of the one or more autonomous driving capabilities of the vehicle.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: August 20, 2024
    Assignee: Motional AD LLC
    Inventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang
  • Patent number: 12019450
    Abstract: Techniques for operation of a vehicle using machine learning with motion planning include storing, using one or more processors of a vehicle located within an environment, a plurality of constraints for operating the vehicle within the environment. One or more sensors of the vehicle receive sensor data describing the environment. The one or more processors extract a feature vector from the stored plurality of constraints and the received sensor data. The feature vector includes a first feature describing an object located within the environment. A machine learning circuit of the vehicle is used to generate a first motion segment based on the feature vector. A number of violations of the stored plurality of constraints is below a threshold. The one or more processors operate the vehicle in accordance with the generated first motion segment.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: June 25, 2024
    Assignee: Motional AD LLC
    Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
  • Publication number: 20240171173
    Abstract: An adjustable capacitor device and a method for adjusting a capacitance value are provided. The adjustable capacitor device includes a first variable resistor, a first comparator coupled between the first variable resistor and a first node, a first capacitor, a second capacitor, a first transistor coupled between the first node, the first capacitor and the second capacitor, and a second transistor coupled between the first node, the first capacitor and the second capacitor.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 23, 2024
    Inventor: Shih-Yuan LIU
  • Publication number: 20240124029
    Abstract: Provided are methods and systems for lane change and intent determination. A method for operating an autonomous vehicle is provided. The method includes obtaining, first scene data associated with a scene of an autonomous vehicle. The method includes generating a plurality of trajectories for the autonomous vehicle. The method includes selecting a trajectory from the plurality of trajectories. The method includes determining a vehicle action intent of the selected trajectory. The method includes combining the vehicle action intent of the selected trajectory with a set of vehicle action intents to form a plurality of vehicle action intents. The set of vehicle action intents correspond to a set of trajectories generated prior to the selected trajectory from second scene data. The method includes selecting a vehicle action for the autonomous vehicle and causing the autonomous vehicle to initiate performance of the vehicle action based on the selecting the action.
    Type: Application
    Filed: January 2, 2023
    Publication date: April 18, 2024
    Inventors: Puneet Singhal, Yash Trikannad, Shih-Yuan Liu, Qianli Ma
  • Patent number: 11899464
    Abstract: Techniques for operation of a vehicle using machine learning with motion planning include storing, using one or more processors of a vehicle located within an environment, a plurality of constraints for operating the vehicle within the environment. One or more sensors of the vehicle receive sensor data describing the environment. The one or more processors extract a feature vector from the stored plurality of constraints and the received sensor data. The feature vector includes a first feature describing an object located within the environment. A machine learning circuit of the vehicle is used to generate a first motion segment based on the feature vector. A number of violations of the stored plurality of constraints is below a threshold. The one or more processors operate the vehicle in accordance with the generated first motion segment.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: February 13, 2024
    Assignee: Motional AD LLC
    Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
  • Patent number: 11878695
    Abstract: Among other things, techniques are described for receiving, from at least one sensor of a vehicle, a sensor measurement indicative of at least one of a sound or a vibration associated with a road element; identifying the road element based on a pattern in the sensor measurement; determining, based on the road element, a vehicle behavior for the vehicle; and controlling the vehicle to operate according to vehicle behavior.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: January 23, 2024
    Assignee: Motional AD LLC
    Inventors: Bence Cserna, Shih-Yuan Liu, Scott D. Pendleton
  • Publication number: 20230311850
    Abstract: Among other things, techniques are described for receiving, from at least one sensor of a vehicle, sensor data associated with a surface along a path to be traveled by a vehicle; using a surface classifier to determine a classification of the surface based on the sensor data; determining, based on the classification of the surface, drivability properties of the surface; planning, based on the drivability properties of the surface, a behavior of the vehicle when driving near the surface or on the surface; and controlling the vehicle based on the planned behavior.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
  • Patent number: 11774065
    Abstract: A quantum dot composition includes a matrix resin, a quantum dot phosphor, and a polysilane polymer. The matrix resin includes epoxy-fluorene copolymer acrylic resin represented by Formula 1: Formula 1. In Formula 1, R1 and R4 each is independently hydrogen or a C1-C12 long alkyl carbon chain. R2 and R3 each is independently a is an integer from 1 to 10, and b and c each is independently an integer from 0 to 10. X is 0.1 to 0.9. A color conversion film including the quantum dot composition and a backlight module using the color conversion film are also provided.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 3, 2023
    Assignee: Nano Precision Taiwan Limited
    Inventors: Ching-Nan Chuang, Yen-Ni Lin, Shih-Yuan Liu
  • Patent number: 11708066
    Abstract: Among other things, techniques are described for receiving, from at least one sensor of a vehicle, sensor data associated with a surface along a path to be traveled by a vehicle; using a surface classifier to determine a classification of the surface based on the sensor data; determining, based on the classification of the surface, drivability properties of the surface; planning, based on the drivability properties of the surface, a behavior of the vehicle when driving near the surface or on the surface; and controlling the vehicle based on the planned behavior.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: July 25, 2023
    Assignee: Motional AD LLC
    Inventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
  • Patent number: 11604071
    Abstract: Using a planning circuit of a vehicle, a map is accessed that includes information identifying at least one lane on which vehicles can travel. Using the planning circuit and from the map, a graph representing a driving environment of the vehicle is generated. The graph includes multiple trajectories. At least one trajectory includes a lane change. Each trajectory is a path for the vehicle to move from a first spatiotemporal location to a second spatiotemporal location. The trajectory includes at least one lane alone which the vehicle can move. Using the planning circuit, a trajectory of the multiple trajectories for the vehicle to travel is selected based on an initial vehicle trajectory of the vehicle. The selected trajectory includes a stem. The stem is a portion of the selected trajectory to which the vehicle is configured to adhere. Using the control circuit, the vehicle is moved along the selected trajectory.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: March 14, 2023
    Assignee: MOTIONAL AD LLC
    Inventor: Shih-Yuan Liu
  • Publication number: 20230003533
    Abstract: Among other things, techniques are described for collision free path generation by connecting C-slices through cell decomposition. An environment is sampled at discrete headings of a vehicle to generate a configuration space (C-space) with one or more C-slices. A first C-slice is decomposed into one or more cells that represent free space. A C-slice adjacency list is generated for the first C-slice. A super adjacency list is derived that connects vertices of interest across the one or more C-slices to form a super adjacency graph. In embodiments, Dubins path is used for connecting the vertices of interest both within and across C-slices to ensure the kinematic feasibility of all the searched paths. An optimal path is navigated, wherein the optimal path is a shortest path from a starting pose to a goal pose on the super adjacency graph.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Inventors: Qianli Ma, Sipu Ruan, Shu-Kai Lin, Shih-Yuan Liu
  • Publication number: 20220381563
    Abstract: Using a planning circuit of a vehicle, a map is accessed that includes information identifying at least one lane on which vehicles can travel. Using the planning circuit and from the map, a graph representing a driving environment of the vehicle is generated. The graph includes multiple trajectories. At least one trajectory includes a lane change. Each trajectory is a path for the vehicle to move from a first spatiotemporal location to a second spatiotemporal location. The trajectory includes at least one lane alone which the vehicle can move. Using the planning circuit, a trajectory of the multiple trajectories for the vehicle to travel is selected based on an initial vehicle trajectory of the vehicle. The selected trajectory includes a stem. The stem is a portion of the selected trajectory to which the vehicle is configured to adhere. Using the control circuit, the vehicle is moved along the selected trajectory.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Inventor: Shih-Yuan Liu
  • Publication number: 20220283586
    Abstract: Techniques for operation of a vehicle using machine learning with motion planning include storing, using one or more processors of a vehicle located within an environment, a plurality of constraints for operating the vehicle within the environment. One or more sensors of the vehicle receive sensor data describing the environment. The one or more processors extract a feature vector from the stored plurality of constraints and the received sensor data. The feature vector includes a first feature describing an object located within the environment. A machine learning circuit of the vehicle is used to generate a first motion segment based on the feature vector. A number of violations of the stored plurality of constraints is below a threshold. The one or more processors operate the vehicle in accordance with the generated first motion segment.
    Type: Application
    Filed: April 4, 2022
    Publication date: September 8, 2022
    Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
  • Publication number: 20220234589
    Abstract: Among other things, techniques are described for receiving, from at least one sensor of a vehicle, a sensor measurement indicative of at least one of a sound or a vibration associated with a road element; identifying the road element based on a pattern in the sensor measurement; determining, based on the road element, a vehicle behavior for the vehicle; and controlling the vehicle to operate according to vehicle behavior.
    Type: Application
    Filed: January 26, 2021
    Publication date: July 28, 2022
    Inventors: Bence Cserna, Shih-Yuan Liu, Scott D. Pendleton
  • Publication number: 20220227353
    Abstract: Among other things, techniques are described for receiving, from at least one sensor of a vehicle, sensor data associated with a surface along a path to be traveled by a vehicle; using a surface classifier to determine a classification of the surface based on the sensor data; determining, based on the classification of the surface, drivability properties of the surface; planning, based on the drivability properties of the surface, a behavior of the vehicle when driving near the surface or on the surface; and controlling the vehicle based on the planned behavior.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 21, 2022
    Inventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
  • Publication number: 20220165100
    Abstract: Among other things, a determination is made that intervention in an operation of one or more autonomous driving capabilities of a vehicle is appropriate. Based on the determination, a person is enabled to provide information for an intervention. The intervention is caused in the operation of the one or more autonomous driving capabilities of the vehicle.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Inventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang