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).
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Publication number: 20240425357Abstract: 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: ApplicationFiled: September 5, 2023Publication date: December 26, 2024Inventors: Shih-Yuan LIU, Chao-Shiun WANG, Shih-Wei LEE
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Patent number: 12163791Abstract: 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: GrantFiled: August 11, 2022Date of Patent: December 10, 2024Assignee: Motional AD LLCInventor: Shih-Yuan Liu
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Patent number: 12135547Abstract: 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: GrantFiled: April 20, 2020Date of Patent: November 5, 2024Assignee: Motional AD LLCInventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang
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Publication number: 20240295877Abstract: 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: ApplicationFiled: May 14, 2024Publication date: September 5, 2024Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
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Patent number: 12067810Abstract: 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: GrantFiled: February 10, 2022Date of Patent: August 20, 2024Assignee: Motional AD LLCInventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang
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Patent number: 12019450Abstract: 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: GrantFiled: April 4, 2022Date of Patent: June 25, 2024Assignee: Motional AD LLCInventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
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Publication number: 20240171173Abstract: 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: ApplicationFiled: December 27, 2022Publication date: May 23, 2024Inventor: Shih-Yuan LIU
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Publication number: 20240124029Abstract: 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: ApplicationFiled: January 2, 2023Publication date: April 18, 2024Inventors: Puneet Singhal, Yash Trikannad, Shih-Yuan Liu, Qianli Ma
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Patent number: 11899464Abstract: 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: GrantFiled: December 5, 2019Date of Patent: February 13, 2024Assignee: Motional AD LLCInventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
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Patent number: 11878695Abstract: 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: GrantFiled: January 26, 2021Date of Patent: January 23, 2024Assignee: Motional AD LLCInventors: Bence Cserna, Shih-Yuan Liu, Scott D. Pendleton
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Publication number: 20230311850Abstract: 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: ApplicationFiled: June 7, 2023Publication date: October 5, 2023Inventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
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Patent number: 11774065Abstract: 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: GrantFiled: July 20, 2021Date of Patent: October 3, 2023Assignee: Nano Precision Taiwan LimitedInventors: Ching-Nan Chuang, Yen-Ni Lin, Shih-Yuan Liu
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Patent number: 11708066Abstract: 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: GrantFiled: January 21, 2021Date of Patent: July 25, 2023Assignee: Motional AD LLCInventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
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Patent number: 11604071Abstract: 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: GrantFiled: November 13, 2019Date of Patent: March 14, 2023Assignee: MOTIONAL AD LLCInventor: Shih-Yuan Liu
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Publication number: 20230003533Abstract: 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: ApplicationFiled: June 30, 2021Publication date: January 5, 2023Inventors: Qianli Ma, Sipu Ruan, Shu-Kai Lin, Shih-Yuan Liu
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Publication number: 20220381563Abstract: 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: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Inventor: Shih-Yuan Liu
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Publication number: 20220283586Abstract: 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: ApplicationFiled: April 4, 2022Publication date: September 8, 2022Inventors: Sourabh Vora, Oscar Olof Beijbom, Shih-Yuan Liu, Tichakorn Wongpiromsarn, Daniele De Francesco, Scott D. Pendleton
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Publication number: 20220234589Abstract: 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: ApplicationFiled: January 26, 2021Publication date: July 28, 2022Inventors: Bence Cserna, Shih-Yuan Liu, Scott D. Pendleton
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Publication number: 20220227353Abstract: 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: ApplicationFiled: January 21, 2021Publication date: July 21, 2022Inventors: Bence Cserna, Eric Wolff, Shih-Yuan Liu
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Publication number: 20220165100Abstract: 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: ApplicationFiled: February 10, 2022Publication date: May 26, 2022Inventors: Shih-Yuan Liu, Harshavardhan Ravichandran, Karl Iagnemma, Hsun-Hsien Chang