Patents by Inventor Jun Pei

Jun Pei 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: 20200309910
    Abstract: A LiDAR system includes a first optical lens, and one or more first optoelectronic packages spaced apart from the first optical lens along the optical axis of the first optical lens. Each respective first optoelectronic package includes a first plurality of optoelectronic components positioned on the respective first optoelectronic package such that a surface of each respective optoelectronic component lies substantially on the first surface of best focus. The LiDAR system further includes a second optical lens, and one or more second optoelectronic packages spaced apart from the second optical lens along the optical axis of the second optical lens. Each respective second optoelectronic package includes a second plurality of optoelectronic components positioned on the respective second optoelectronic package such that a surface of each respective optoelectronic component lies substantially on the second surface of best focus.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Applicant: Cepton Technologies, Inc.
    Inventors: Mark Armstrong McCord, Roger David Cullumber, Jun Pei, Henrik K. Nielsen
  • Patent number: 10754036
    Abstract: A three-dimensional imaging system includes a first illumination source configured to project a first fan of light toward an object in a field of view, and a second illumination source configured to project a second fan of light substantially parallel to and spaced apart from the first fan of light. The first illumination source and the second illumination source are further configured to scan the first fan of light and the second fan of light synchronously laterally across the field of view. The three-dimensional imaging system further includes a camera configured to capture a plurality of image frames of the field of view as the first fan of light and the second fan of light are scanned over a plurality of regions the object, and a processor coupled to the camera and configured to construct a three-dimensional image of the object based on the plurality of image frames.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 25, 2020
    Assignee: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark McCord, Jun Ye, Yupeng Cui, Liqun Han
  • Publication number: 20200241113
    Abstract: A LiDAR system includes a first lens, a second lens, a first set of light sources and a first set of detectors positioned at a focal plane of the first lens, and a second set of light sources and a second set of detectors positioned at a focal plane of the second lens. Each detector of the second set of detectors is located at a respective detector position on the focal plane of the second lens that is optically conjugate with a position of a corresponding light source of the first set of light sources. Each detector of the first set of detectors is located at a respective detector position on the focal plane of the first lens that is optically conjugate with a position of a corresponding light source of the second set of light sources.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Applicant: Cepton Technologies, Inc.
    Inventors: Roger David Cullumber, Jun Pei, Mark A. McCord
  • Publication number: 20200243577
    Abstract: An imaging system includes a base, an imaging lens fixedly attached to the base, a board, a first set of flexures flexibly attaching the board to the base, and a detector mounted on the board and positioned at an image plane of the imaging lens. The imaging system further includes a driving mechanism configured to scan the board via the first set of flexures in a plane substantially perpendicular to an optical axis of the imaging lens, thereby scanning the detector to a plurality of image positions in the image plane. The imaging system further includes electronic circuitry configured to read out a respective electrical signal output by the detector as the detector is scanned to each respective image position of the plurality of image positions in the image plane, and generate an image based on the electrical signals read out from the detector at the plurality of image positions.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: Cepton Technologies, Inc.
    Inventors: Jun Pei, Dongyi Liao, Mark A. McCord
  • Patent number: 10690754
    Abstract: A scanning lidar system includes a fixed frame, a first platform flexibly attached to the fixed frame, a lens assembly including a first lens and a second lens mounted on the first platform, a second platform flexible attached to the fixed frame, an electro-optic assembly including a first laser source and a first photodetector mounted on the second platform, a drive mechanism mechanically coupled to the first platform and the second platform and configured to translate the first platform and the second platform with respect to the fixed frame, and a controller coupled to the drive mechanism and configured to translate the first platform to a plurality of first positions through the drive mechanism and translate the second platform to a plurality of second positions through the drive mechanism such that a motion of the second platform is substantially opposite to a motion of the first platform.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 23, 2020
    Assignee: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark McCord, Jun Ye, Yupeng Cui, Liqun Han
  • Publication number: 20200096642
    Abstract: A lidar system includes a laser source, a photodetector, an emission lens, a receiving lens, and a processor. The laser source is configured to be translated through a plurality of emission locations, and to emit a plurality of laser pulses therefrom. The emission lens is configured to collimate and direct the plurality of laser pulses towards an object. The receiving lens is configured to focus the portion of each of the plurality of laser pulses reflected off of the object to a plurality of detection locations. The photodetector is configured to be translated through the plurality of detection locations, and to detect the portion of each of the plurality of laser pulses. The processor is configured to determine a time of flight for each of the plurality of laser pulses from emission to detection, and construct a three-dimensional image of the object based on the determined time of flight.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 26, 2020
    Applicant: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark A. McCord, Jun Ye
  • Patent number: 10571871
    Abstract: The present invention discloses an automatic loading system and method for service functions of a hydraulic machine. The loading system includes an acquiring portion for acquiring i service function component chains of a hydraulic machine, a determining portion for determining a demand sequence of the service function component chains used by a user within each preset time period in a measuring cycle based on the acquired service function component chains and a deciding portion for automatically loading a service function of the hydraulic machine in a next moment according to the demand sequence based on a current input operation command of the user. By adopting the automatic loading system or method provided by the present invention, response speed of intelligent services of the hydraulic machine can be improved.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: February 25, 2020
    Assignee: Hefei University of Technology
    Inventors: Qiang Zhang, Shanlin Yang, Zhanglin Peng, Jun Pei, Xiaonong Lu
  • Publication number: 20200018835
    Abstract: A scanning LiDAR system includes a base frame, an optoelectronic assembly, and a lens assembly. The optoelectronic assembly includes one or more laser sources and one or more photodetectors, and is fixedly attached to the base frame. The lens assembly includes one or more lenses. The one or more lenses have a focal plane. The scanning LiDAR system further includes a first flexure assembly flexibly coupling the lens assembly to the base frame. The first flexure assembly is configured such that the one or more laser sources and the one or more photodetectors are positioned substantially at the focal plane of the one or more lenses. The first flexure assembly is further configured to be flexed so as to scan the lens assembly laterally in a plane substantially perpendicular to an optical axis of the emission lens.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 16, 2020
    Applicant: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark A. McCord, Ying Xu
  • Patent number: 10481266
    Abstract: A three-dimensional imaging system includes a lidar sensor having a first optical axis oriented at a first angle toward a scene and configured to determine a three-dimensional image of one or more first objects in the scene, and an optical three-dimensional sensor having a second optical axis oriented at a second angle toward the scene and configured to construct a three-dimensional image of one or more second objects in the scene. The first three-dimensional sensor is characterized by a first angular field of view. The second three-dimensional sensor is characterized by a second angular field of view different from the first angular field of view.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: November 19, 2019
    Assignee: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark A. McCord, June Ye
  • Patent number: 10451740
    Abstract: A lidar system includes a laser source, a photodetector, an emission lens, a receiving lens, and a processor. The laser source is configured to be translated through a plurality of emission locations, and to emit a plurality of laser pulses therefrom. The emission lens is configured to collimate and direct the plurality of laser pulses towards an object. The receiving lens is configured to focus the portion of each of the plurality of laser pulses reflected off of the object to a plurality of detection locations. The photodetector is configured to be translated through the plurality of detection locations, and to detect the portion of each of the plurality of laser pulses. The processor is configured to determine a time of flight for each of the plurality of laser pulses from emission to detection, and construct a three-dimensional image of the object based on the determined time of flight.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 22, 2019
    Assignee: CEPTON TECHNOLOGIES, INC.
    Inventors: Jun Pei, Mark McCord, Jun Ye
  • Patent number: 10401840
    Abstract: A method and a system for scheduling parallel machines based on hybrid shuffled frog leaping algorithm and variable neighborhood search algorithm are provided to solve collaborative production and processing of jobs on a plurality of unrelated batch processing machines. The jobs are distributed to machines based on the normal processing time and deterioration situation of the jobs on different machines and are arranged. An effective multi-machine heuristic rule is designed according to the structural properties of an optimal solution for the single-machine problem, and the improved rule is applied to the improved shuffled frog leaping algorithm to solve this problem. The improvement strategy for the traditional shuffled frog leaping algorithm is to improve the local search procedure of the traditional frog leaping algorithm by introducing the variable neighborhood search algorithm. The convergence rate and optimization capacity of the original algorithm are thus improved.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 3, 2019
    Assignee: Hefei University of Technology
    Inventors: Xinbao Liu, Jun Pei, Min Kong, Shaojun Lu, Xiaofei Qian, Zhiping Zhou
  • Patent number: 10402404
    Abstract: The present invention discloses a scheduling method and system based on a hybrid variable neighborhood search and gravitational search algorithm. The method includes: 1 setting parameters of the algorithm; 2 initializing an initial solution of the algorithm; 3 performing local search based on a gravitational search algorithm (GSA); 4 updating the initial solution; 5 determining whether an algorithm termination condition is satisfied; if yes, outputting the global optimal solution searched for by the algorithm, otherwise, returning to the step 3. According to the present invention, a near-optimal solution for the continuous batch processing problem based on position learning effect and linear starting time can be obtained, so that an enterprise can make full use of production resources thereof to the utmost extent, and thus reduce production costs and improve the enterprise service level and the customer satisfaction level.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: September 3, 2019
    Assignee: Hefei University of Technology
    Inventors: Jun Pei, Wenjuan Fan, Xinbao Liu, Qiang Zhang, Min Kong, Shaojun Lu
  • Publication number: 20190257922
    Abstract: A headlamp module of a vehicle includes a housing including a window, an illumination submodule disposed inside the housing and configured to provide illumination light to be transmitted through the window toward a scene in front of the vehicle, and a first LiDAR sensor disposed inside the housing and laterally displaced from the illumination submodule. The first LiDAR sensor includes one or more laser sources configured to emit laser beams to be transmitted through the window toward the scene, the laser beams being reflected off of one or more objects in the scene, thereby generating return laser beams to be transmitted through the window toward the first LiDAR sensor and one or more detectors configured to receive and detect the return laser beams.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 22, 2019
    Applicant: Cepton Technologies, Inc.
    Inventors: Mark A. McCord, Jun Pei, Liqun Han, Dongyi Liao, Wei Wei
  • Patent number: 10318931
    Abstract: The present invention discloses a method and system for determining a maintenance policy of a complex forming device. The method and system include: establishing a performance judgement standard; obtaining actual operation data; and determining a performance stage of the complex forming device, and determining the maintenance policy of the complex forming device. The establishing a performance judgement standard includes allocating data located at different performance stages to corresponding working condition units; setting data located at a normal performance stage to normal reference data, and calculating, by using a shortest path algorithm, distances between operation data of different working condition units in different functional modules and the normal reference data, to obtain performance statuses of the different functional modules.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 11, 2019
    Assignee: Hefei University of Technology
    Inventors: Qiang Zhang, Wanying Wang, Zhanglin Peng, Xiaonong Lu, Jun Pei, Yu Fan, Jianwen Yan
  • Publication number: 20190162858
    Abstract: A lidar system includes a laser source, an emission lens configured to collimate and direct a laser beam emitted by the laser source, a receiving lens configured to receive and focus a return laser beam reflected off of one or more objects to a return beam spot at a focal plane of the receiving lens, and a detector including a plurality of photo sensors arranged as an array at the focal plane of the receiving lens. Each photo sensor has a respective sensing area and is configured to receive and detect a respective portion of the return laser beam. The lidar system further includes a processor configured to determine a respective time of flight for each respective portion of the return laser beam, and construct a three-dimensional image of the one or more objects based on the respective time of flight for each respective portion of the return laser beam.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Applicant: Cepton Technologies, Inc.
    Inventors: Mark A. McCord, Jun Pei, Dongyi Liao
  • Publication number: 20190162857
    Abstract: An optical system includes a laser source having an emission area that has a first width in a first direction and a first height in a second direction orthogonal to the first direction, the first width being greater than the first height. The optical system further includes a cylindrical lens having a negative power and positioned in front of the laser source. The cylindrical lens is oriented such that a power axis of the cylindrical lens is along the first direction. The cylindrical lens is configured to transform the emission area of a laser beam emitted by the laser source into a virtual emission area having a virtual width and a virtual height, where the virtual width is less than the first width. The optical system further includes an rotationally symmetric lens positioned downstream from the cylindrical lens and configured to collimate and direct the laser beam towards a far-field.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Applicant: Cepton Technologies, Inc.
    Inventors: Mark A. McCord, Jun Pei, Dongyi Liao
  • Publication number: 20190120940
    Abstract: A scanning lidar system includes a fixed frame, a first platform, and a first electro-optic assembly. The first electro-optic assembly includes a first laser source and a first photodetector mounted on the first platform. The scanning lidar system further includes a first flexure assembly flexibly coupling the first platform to the fixed frame, and a drive mechanism configured to scan the first platform with respect to the fixed frame in two dimensions in a plane substantially perpendicular to an optical axis of the lidar system. The scanning lidar system further includes a controller coupled to the drive mechanism. The controller is configured to cause the drive mechanism to scan the first platform in a first direction with a first frequency and in a second direction with a second frequency. The second frequency is similar but not identical to the first frequency.
    Type: Application
    Filed: May 4, 2018
    Publication date: April 25, 2019
    Applicant: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark A. McCord, Roger David Cullumber, Yupeng Cui, Dongyi Liao
  • Publication number: 20190095876
    Abstract: The present invention discloses a method and system for determining a maintenance policy of a complex forming device. The method and system include: establishing a performance judgement standard; obtaining actual operation data; and determining a performance stage of the complex forming device, and determining the maintenance policy of the complex forming device. The establishing a performance judgement standard includes allocating data located at different performance stages to corresponding working condition units; setting data located at a normal performance stage to normal reference data, and calculating, by using a shortest path algorithm, distances between operation data of different working condition units in different functional modules and the normal reference data, to obtain performance statuses of the different functional modules.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 28, 2019
    Inventors: Qiang ZHANG, Wanying WANG, Zhanglin PENG, Xiaonong LU, Jun PEI, Yu FAN, Jianwen YAN
  • Patent number: 10231910
    Abstract: An oral care composition comprising 20% to 75% of water by weight of the composition; 25% to 60% of a calcium-containing abrasive by weight of the composition; 0.001% to 5% of a flavorant by weight of the composition; and a rheology profile characterized by at least one of the following parameters: 10*K (Pa·s) value from 100 to 3,000; (?10000*)n (rate index) value from ?5000 to ?1300; 10*Yield Stress value from 100 to 3,500; Average G? value from 100 to 2000; or Average G? value 100 to 1000.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: March 19, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Zhong Lei, Jun Pei, Ross Strand, Hongmei Yang, Yan Zhang
  • Publication number: 20190080270
    Abstract: The present invention disclose a parallel machine batch scheduling method and system based on an improved artificial bee colony algorithm in a deterioration situation. With this method, a near-optimal solution for the parallel machine batch scheduling problem with deteriorating jobs and maintenance consideration can be obtained. The model of the present invention is derived from an actual production process with considerations of machine maintenance and batching as well as additional processing and maintenance time for jobs and machines over time in actual production. According to the present invention, the settlement of this problem is conducive to providing reliable decision support for the production and maintenance of an enterprise in complex real production conditions, thus reducing enterprise operation costs, increasing enterprise productivity, and promoting building of a modern smart factory of the enterprise.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Inventors: Xinbao Liu, Jun Pei, Shaojun Lu, Min Kong, Xiaofei Qian, Zhiping Zhou