Patents by Inventor JUNQING WEI
JUNQING WEI 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: 20240354194Abstract: Encoding methods based on erasure code are disclosed, and a distributed system, a device and a storage medium are provided. The method comprises: acquiring K data blocks of data to be processed; dividing the K data blocks into L data groups, wherein each data group at least comprises K encoding parameters respectively corresponding to the K data blocks, and K and L are integers greater than 1; and for each data group, performing encoding by using at least part of data blocks in other data groups and encoding parameters, which correspond to the at least part of data blocks, in the present data group, to generate a local reconstruction parity block of the present data group. The data groups and the local reconstruction parity blocks are stored in data nodes of a distributed system.Type: ApplicationFiled: November 8, 2022Publication date: October 24, 2024Applicant: HANGZHOU ALICLOUD FEITIAN INFORMATION TECHNOLOGY CO., LTD.Inventors: Shuzhan WEI, Yafei ZHAO, Junqing GU, Yuanyuan DONG, Liang CHEN
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Publication number: 20240345917Abstract: A parity block generation method and apparatus. The method comprises: for a plurality of original data blocks for which parity blocks are to be generated, determining (102) a global coding matrix for the plurality of original data blocks; for each local domain that is obtained by dividing the plurality of original data blocks, determining (104) a local coding matrix of the local domain on the basis of the global coding matrix, wherein each local domain comprises original data blocks that belong to the local domain; and generating (106), on the basis of the global coding matrix, global parity blocks for the plurality of original data blocks, and generating, on the basis of the local coding matrix of each local domain, a local reconstruction parity block of each local domain, such that the global parity blocks have a derivation relationship with the local reconstruction parity block of each local domain.Type: ApplicationFiled: September 30, 2022Publication date: October 17, 2024Inventors: Shuzhan WEI, Junqing GU, Yafei ZHAO, Yuanyuan DONG
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Patent number: 12067786Abstract: Among other things, we describe systems and method for validating sensor calibration. For validating calibration of a system of sensors having several types of sensors, an object may be configured to have a substantially reflective portion such that the sensors can isolate the substantially reflective portion, and their sensor data can be compared to determine, if the detected locations of the substantially reflective portion by each sensor are aligned. For calibrating a system of sensors, an object having known calibration features can be used and detected by each sensor, and the detected data can be compared to known calibration data associated with the object to determine if each sensor is correctly calibrated.Type: GrantFiled: August 16, 2022Date of Patent: August 20, 2024Assignee: Motional AD LLCInventors: Mauro Aguiar, Noam Weinstein, Eric Wolff, Matthias Sapuan, Hsun-Hsien Chang, Philipp Robbel, Maurilio Di Cicco, Guchan Ozbilgin, Bishwamoy Sinha Roy, Yifan Yang, Akshay Bhagat, David Butterworth, Andrew J. Eick, Alok Sharma, Junqing Wei
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Patent number: 12013694Abstract: An operation-security system for an automated vehicle includes an object-detector and a controller. The object-detector includes at least three sensors. Each sensor is one of a camera used to determine an image-location of an object proximate to a host-vehicle, a lidar-unit used to determine a lidar-location of the object proximate to the host-vehicle, and a radar-unit used to determine a radar-location of the object proximate to the host-vehicle. The controller is in communication with the at least three sensors. The controller is configured to determine a composite-location based on a comparison of locations indicated by the at least three sensors. Information from one sensor is ignored when a respective location indicated by the one sensor differs from the composite-location by greater than an error-threshold. If a remote sensor not on the host-vehicle is used, V2V or V2I communications may be used to communicate a location to the host-vehicle.Type: GrantFiled: December 3, 2021Date of Patent: June 18, 2024Assignee: Motional AD LLCInventors: Serge Lambermont, Junsung Kim, Junqing Wei, Gaurav Bhatia
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Patent number: 11802967Abstract: A sensor data fusion system for a vehicle with multiple sensors includes a first-sensor, a second-sensor, and a controller-circuit. The first-sensor is configured to output a first-frame of data and a subsequent-frame of data indicative of objects present in a first-field-of-view. The first-frame is characterized by a first-time-stamp, the subsequent-frame of data characterized by a subsequent-time-stamp different from the first-time-stamp. The second-sensor is configured to output a second-frame of data indicative of objects present in a second-field-of-view that overlaps the first-field-of-view. The second-frame is characterized by a second-time-stamp temporally located between the first-time-stamp and the subsequent-time-stamp. The controller-circuit is configured to synthesize an interpolated-frame from the first-frame and the subsequent-frame. The interpolated-frame is characterized by an interpolated-time-stamp that corresponds to the second-time-stamp.Type: GrantFiled: August 15, 2022Date of Patent: October 31, 2023Assignee: Motional AD LLCInventors: Guchan Ozbilgin, Wenda Xu, Jarrod M. Snider, Yimu Wang, Yifan Yang, Junqing Wei
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Patent number: 11774974Abstract: An operating system for an automated vehicle includes a failure-detector and a controller. The failure-detector detects a component-failure on a host-vehicle. Examples of the component-failure include a flat-tire and engine trouble that reduces engine-power. The controller operates the host-vehicle based on a dynamic-model. The dynamic-model is varied based on the component-failure detected by the failure-detector.Type: GrantFiled: April 26, 2021Date of Patent: October 3, 2023Assignee: Motional AD LLCInventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider, Junsung Kim
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Patent number: 11604474Abstract: A scenario aware perception system (10) suitable for use on an automated vehicle includes a traffic-scenario detector (14), an object-detection device (24), and a controller (32). The traffic-scenario detector (14) is used to detect a present-scenario (16) experienced by a host-vehicle (12). The object-detection device (24) is used to detect an object (26) proximate to the host-vehicle (12). The controller (32) is in communication with the traffic-scenario detector (14) and the object-detection device (24). The controller (32) configured to determine a preferred-algorithm (36) used to identify the object (26). The preferred-algorithm (36) is determined based on the present-scenario (16).Type: GrantFiled: December 29, 2020Date of Patent: March 14, 2023Assignee: Motional AD LLCInventors: Wenda Xu, Jarrod M. Snider, Junqing Wei
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Publication number: 20220390957Abstract: A sensor data fusion system for a vehicle with multiple sensors includes a first-sensor, a second-sensor, and a controller-circuit. The first-sensor is configured to output a first-frame of data and a subsequent-frame of data indicative of objects present in a first-field-of-view. The first-frame is characterized by a first-time-stamp, the subsequent-frame of data characterized by a subsequent-time-stamp different from the first-time-stamp. The second-sensor is configured to output a second-frame of data indicative of objects present in a second-field-of-view that overlaps the first-field-of-view. The second-frame is characterized by a second-time-stamp temporally located between the first-time-stamp and the subsequent-time-stamp. The controller-circuit is configured to synthesize an interpolated-frame from the first-frame and the subsequent-frame. The interpolated-frame is characterized by an interpolated-time-stamp that corresponds to the second-time-stamp.Type: ApplicationFiled: August 15, 2022Publication date: December 8, 2022Inventors: Guchan Ozbilgin, Wenda Xu, Jarrod M. Snider, Yimu Wang, Yifan Yang, Junqing Wei
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Publication number: 20220392232Abstract: Among other things, we describe systems and method for validating sensor calibration. For validating calibration of a system of sensors having several types of sensors, an object may be configured to have a substantially reflective portion such that the sensors can isolate the substantially reflective portion, and their sensor data can be compared to determine, if the detected locations of the substantially reflective portion by each sensor are aligned. For calibrating a system of sensors, an object having known calibration features can be used and detected by each sensor, and the detected data can be compared to known calibration data associated with the object to determine if each sensor is correctly calibrated.Type: ApplicationFiled: August 16, 2022Publication date: December 8, 2022Inventors: Mauro Aguiar, Noam Weinstein, Eric Wolff, Matthias Sapuan, Hsun-Hsien Chang, Philipp Robbel, Maurilio Di Cicco, Guchan Ozbilgin, Bishwamoy Sinha Roy, Yifan Yang, Akshay Bhagat, David Butterworth, Andrew J. Eick, Alok Sharma, Junqing Wei
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Patent number: 11488476Abstract: A detection system includes a first-sensor, a second-sensor, and a controller. The first-sensor is mounted on a host-vehicle. The first-sensor detects objects in a first-field-of-view. The second-sensor is positioned at a second-location different than the first-location. The second-sensor detects objects in a second-field-of-view that at least partially overlaps the first-field of view. The controller is in communication with the first-sensor and the second-sensor. The controller selects the second-sensor to detect an object-of-interest in accordance with a determination that an obstruction blocks a first-line-of-sight between the first-sensor and the object-of-interest.Type: GrantFiled: January 9, 2018Date of Patent: November 1, 2022Assignee: Motional AD LLCInventors: Junsung Kim, Junqing Wei, Wenda Xu, Gaurav Bhatia
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Patent number: 11443524Abstract: Among other things, we describe systems and method for validating sensor calibration. For validating calibration of a system of sensors having several types of sensors, an object may be configured to have a substantially reflective portion such that the sensors can isolate the substantially reflective portion, and their sensor data can be compared to determine, if the detected locations of the substantially reflective portion by each sensor are aligned. For calibrating a system of sensors, an object having known calibration features can be used and detected by each sensor, and the detected data can be compared to known calibration data associated with the object to determine if each sensor is correctly calibrated.Type: GrantFiled: November 26, 2019Date of Patent: September 13, 2022Assignee: Motional AD LLCInventors: Mauro Aguiar, Noam Weinstein, Eric Wolff, Matthias Sapuan, Hsun-Hsien Chang, Philipp Robbel, Maurilio Di Cicco, Guchan Ozbilgin, Bishwamoy Sinha Roy, Yifan Yang, Akshay Bhagat, David Butterworth, Andrew J. Eick, Alok Sharma, Junqing Wei
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Patent number: 11435752Abstract: A sensor data fusion system for a vehicle with multiple sensors includes a first-sensor, a second-sensor, and a controller-circuit. The first-sensor is configured to output a first-frame of data and a subsequent-frame of data indicative of objects present in a first-field-of-view. The first-frame is characterized by a first-time-stamp, the subsequent-frame of data characterized by a subsequent-time-stamp different from the first-time-stamp. The second-sensor is configured to output a second-frame of data indicative of objects present in a second-field-of-view that overlaps the first-field-of-view. The second-frame is characterized by a second-time-stamp temporally located between the first-time-stamp and the subsequent-time-stamp. The controller-circuit is configured to synthesize an interpolated-frame from the first-frame and the subsequent-frame. The interpolated-frame is characterized by an interpolated-time-stamp that corresponds to the second-time-stamp.Type: GrantFiled: March 26, 2018Date of Patent: September 6, 2022Assignee: Motional AD LLCInventors: Guchan Ozbilgin, Wenda Xu, Jarrod M. Snider, Yimu Wang, Yifan Yang, Junqing Wei
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Publication number: 20220163964Abstract: An operation-security system for an automated vehicle includes an object-detector and a controller. The object-detector includes at least three sensors. Each sensor is one of a camera used to determine an image-location of an object proximate to a host-vehicle, a lidar-unit used to determine a lidar-location of the object proximate to the host-vehicle, and a radar-unit used to determine a radar-location of the object proximate to the host-vehicle. The controller is in communication with the at least three sensors. The controller is configured to determine a composite-location based on a comparison of locations indicated by the at least three sensors. Information from one sensor is ignored when a respective location indicated by the one sensor differs from the composite-location by greater than an error-threshold. If a remote sensor not on the host-vehicle is used, V2V or V2I communications may be used to communicate a location to the host-vehicle.Type: ApplicationFiled: December 3, 2021Publication date: May 26, 2022Inventors: Serge Lambermont, Junsung Kim, Junqing Wei, Gaurav Bhatia
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Patent number: 11250276Abstract: A steering-system for an automated vehicle is provided. The system includes an object-detector and a controller. The object-detector indicates a height and/or a width of an object approached by a host-vehicle. The controller is configured to steer the host-vehicle and is in communication with the object-detector. The controller steers the host-vehicle to straddle the object when the height of the object is less than a ground-clearance of the host-vehicle, and/or the width of the object is less than a track-width of the host-vehicle.Type: GrantFiled: July 30, 2019Date of Patent: February 15, 2022Assignee: Motional AD LLCInventors: Junqing Wei, Wenda Xu
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Patent number: 11194328Abstract: An operation-security system for an automated vehicle includes an object-detector and a controller. The object-detector includes at least three sensors. Each sensor is one of a camera used to determine an image-location of an object proximate to a host-vehicle, a lidar-unit used to determine a lidar-location of the object proximate to the host-vehicle, and a radar-unit used to determine a radar-location of the object proximate to the host-vehicle. The controller is in communication with the at least three sensors. The controller is configured to determine a composite-location based on a comparison of locations indicated by the at least three sensors. Information from one sensor is ignored when a respective location indicated by the one sensor differs from the composite-location by greater than an error-threshold. If a remote sensor not on the host-vehicle is used, V2V or V2I communications may be used to communicate a location to the host-vehicle.Type: GrantFiled: February 21, 2020Date of Patent: December 7, 2021Assignee: Motional AD LLCInventors: Serge Lambermont, Junsung Kim, Junqing Wei, Gaurav Bhatia
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Patent number: 11099264Abstract: A radar system for an automated vehicle includes a digital-map, a radar, and a controller. The digital-map indicates a characteristic of a roadway traveled by a host-vehicle. The radar detects objects proximate to the host-vehicle. The radar is equipped with a range-setting that is selectively variable. The controller is in communication with the digital-map and the radar. The controller is configured to select the range-setting of the radar based on the characteristic of the roadway. The characteristic may be based on speed-limit, road-shape (e.g. curve-radius), a horizon-distance, and/or an obstruction (e.g. hill, sign, or building). The radar may be equipped with a frame-rate-setting (i.e. pulse repetition frequency or PRF) that is selectively variable, and the controller may be further configured to select the frame-rate-setting based on the characteristic of the roadway.Type: GrantFiled: September 20, 2017Date of Patent: August 24, 2021Assignee: Motional AD LLCInventors: Gaurav Bhatia, Junqing Wei, Wenda Xu
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Patent number: 11092963Abstract: A system for operating an autonomous vehicle includes a passenger-detector and a controller-circuit. The passenger-detector is operable to determine a passenger-count of passengers present in a host-vehicle. The controller-circuit is in communication with the passenger-detector and vehicle-controls of the host-vehicle. The controller-circuit is configured to operate the host-vehicle in an autonomous-mode and in accordance with a parameter. The parameter is set to an empty-value when passenger-count is equal to zero, and the parameter is set to an occupied-value different from the empty-value when the passenger count is greater than zero.Type: GrantFiled: May 1, 2018Date of Patent: August 17, 2021Assignee: Motional AD LLCInventors: Junqing Wei, Wenda Xu
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Publication number: 20210247772Abstract: An operating system for an automated vehicle includes a failure-detector and a controller. The failure-detector detects a component-failure on a host-vehicle. Examples of the component-failure include a flat-tire and engine trouble that reduces engine-power. The controller operates the host-vehicle based on a dynamic-model. The dynamic-model is varied based on the component-failure detected by the failure-detector.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Inventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider, Junsung Kim
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Patent number: 11087626Abstract: A system for operating an automated vehicle in a crowd of pedestrians includes an object-detector, optionally, a signal detector, and a controller. The object-detector detects pedestrians proximate to a host-vehicle. The signal-detector detects a signal-state displayed by a traffic-signal that displays a stop-state that indicates when the host-vehicle should stop so the pedestrians can cross in front of the host-vehicle, and displays a go-state that indicates when the pedestrians should stop passing in front of the host-vehicle so that the host-vehicle can go forward. The controller is in control of movement of the host-vehicle and in communication with the object-detector and the signal-detector. The controller operates the host-vehicle to stop the host-vehicle when the stop-state is displayed, and operates the host-vehicle to creep-forward after a wait-interval after the traffic-signal changes to the go-state when the pedestrians fail to stop passing in front of the host-vehicle.Type: GrantFiled: August 5, 2019Date of Patent: August 10, 2021Assignee: Motional AD LLCInventors: Junqing Wei, Wenda Xu, Jong Ho Lee
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Patent number: 11087624Abstract: A safe-to-proceed system (10) for operating an automated vehicle proximate to an intersection (14) includes an intersection-detector (18), a vehicle-detector (20), and a controller (24). The intersection-detector (18) is suitable for use on a host-vehicle (12). The intersection-detector (18) is used to determine when a host-vehicle (12) is proximate to an intersection (14). The vehicle-detector (20) is also suitable for use on the host-vehicle (12). The vehicle-detector (20) is used to estimate a stopping-distance (22) of an other-vehicle (16) approaching the intersection (14). The controller (24) is in communication with the intersection-detector (18) and the vehicle-detector (20). The controller (24) is configured to prevent the host-vehicle (12) from entering the intersection (14) when the stopping-distance (22) indicates that the other-vehicle (16) will enter the intersection (14) before stopping.Type: GrantFiled: May 4, 2017Date of Patent: August 10, 2021Assignee: Motional AD LLCInventors: Junqing Wei, Gaurav Bhatia, Wenda Xu