Patents by Inventor Yifei Zhang

Yifei Zhang 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: 20220234627
    Abstract: Systems and methods for creation of custom behavior zones for autonomous vehicles, providing a more tailored experience for passengers as well as businesses. Custom behavior zones allow passengers to request or select a specific pick-up/drop-off location on private property. In some examples, custom behavior zones are created in private gated communities, on residential properties with long driveways, on government property, and at businesses that have multiple entrances and/or offer different services at various locations on the business property.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Jeremy Stephen Juel, Alexander Willem Gerrese, Yifei Zhang, Aakanksha Mirdha
  • Publication number: 20220238023
    Abstract: Systems and methods for customizable autonomous vehicle service for large scale events. A centralized ride management system allows event hosts to integrate with a rideshare vehicle fleet for booking, customizing, tracking, and managing guest rides. The centralized ride management system collects basic event information from the host, such as event location, event start time, number of event guests, and guest pick-up locations. Using this information, the centralized ride management system schedules various guest pick-up times and determines routes to the event location that optimize traffic conditions and reduce congestion at the drop-off location.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Aakanksha Mirdha, Alexander Willem Gerrese, Jeremy Stephen Juel, Yifei Zhang
  • Patent number: 11342766
    Abstract: A shopping cart charging device, a charging system, an escalator and a shopping cart is disclosed. The shopping cart charging device includes a charging electrode configured to be disposed on a wheel of a shopping cart. The charging electrode is configured to allow electrical connection with a power supply electrode disposed on an escalator, so as to charge the shopping cart.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: May 24, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tailiang Li, Yifei Zhang, Hongtao Guan, Ying Zhang, Hua Cao
  • Patent number: 11320647
    Abstract: Alloys of GeSbSeTe (GSST) can be used to make actively tunable infrared transmission filters that are small, fast, and solid-state. These filters can be used for hyperspectral imaging, 3D LIDAR, portable bio/chem sensing systems, thermal emission control, and tunable filters. GSST is a low-loss phase-change material that can switch from a low-index (n=3), amorphous state to a high-index (n=4.5), hexagonal state with low loss (k<0.3) over a wavelength range of 2-10 microns or more. The GSST thickness can be selected to provide pure phase modulation, pure amplitude modulation, or coupled phase and amplitude modulation. GSST can be switched thermally in an oven, optically with visible light, or electrically via Joule heating at speeds from kilohertz to Gigahertz. It operates with reversible and polarization independent transmission switching over a wide incident angle (e.g., 0-60 degrees).
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 3, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Jeffrey Chou, Vladimir Liberman, Juejun Hu, Yifei Zhang, William Herzog, Jason Stewart, Christopher Roberts
  • Publication number: 20220120569
    Abstract: Systems and methods are provided for long distance trips in an autonomous vehicle fleet. In particular, systems and methods are provided for autonomous vehicle trips that are a longer distance than a vehicle can travel without recharging. In some implementations, a user is provided an option between stopping to recharge the autonomous vehicle and switching from a first autonomous vehicle to a second autonomous vehicle at a selected stopping location.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 21, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Alexander Willem Gerrese, Aakanksha Mirdha, Yifei Zhang, Jeremy Stephen Juel
  • Publication number: 20220119005
    Abstract: Systems and methods are provided for autonomous vehicle passenger safety monitoring following an autonomous vehicle route. In particular, an autonomous vehicle waits for a selected time period after a passenger exits the vehicle. In some examples, the autonomous vehicle remains until the passenger has entered a building at the passenger's destination. In some examples, the autonomous vehicle remains until the passenger is no longer detectable by the vehicle's sensors. During the waiting period, the passenger may choose to re-enter the vehicle.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 21, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Alexander Willem Gerrese, Jeremy Stephen Juel, Yifei Zhang
  • Patent number: 11276178
    Abstract: The present disclosure provides a line segment detection method, apparatus, device, and a computer-readable storage medium. Said method includes: extracting image features of an image to be processed, the image features including an image gradient angle and an image gradient amplitude; determining a plurality of seed points based on the extracted image features; for each seed point of the plurality of seed points, determining a current connected region of respective seed point according to a region growth rule, wherein the region growth rule needs to satisfy both a gradient amplitude growth rule and a gradient angle growth rule simultaneously; and performing line segment fitting on line segments within the current connected region of respective seed point.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 15, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huanhuan Zhang, Tong Liu, Xiaojun Tang, Yifei Zhang, Zhiguo Zhang
  • Publication number: 20220068140
    Abstract: A fleet management system provides a shared trip platform that virtually connects multiple autonomous vehicles (AVs). Multiple AVs, each transporting at least one passenger, are connected in a shared trip. Each of the AVs provides an audio/video stream of the passenger compartment and a current location to a server. The shared trip platform provides a display in each of the AVs showing the current locations of the two AVs in the shared trip. The shared trip platform also transmits the audio/video streams to AVs connected in the shared trip, enabling a video chat between the passengers in the connected AVs.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 3, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Jeffrey Brandon, Alexander Willem Gerrese, Jeremy Stephen Juel, Yifei Zhang
  • Publication number: 20220068139
    Abstract: A fleet management system coordinates multiple autonomous vehicles (AVs) to transport a group of passengers from one location to another. A single user can submit a request to the fleet management system to provide a ride for the group, the request specifying the number of passengers and the pickup location. The fleet management system determines a number of AVs to transport the group based on the number passengers, and dispatches this number of AVs to the pickup location. The AVs pick up the passengers at the pickup location, drive the passengers to a destination, and drop the passengers off at the destination.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 3, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Jeffrey Brandon, Alexander Willem Gerrese, Yifei Zhang, Jeremy Stephen Juel
  • Patent number: 11252310
    Abstract: A camera module, an electronic device and a photographing method are disclosed, which relates to the field of camera devices, in order to mitigate or alleviate the problem of an excessively small view angle for the existing camera module. The camera module includes a fixing member, a photographing unit connected with the fixing member via a connection shaft, a driving component including a first magnetic member and a first conductive member. Either of the first magnetic member and the first conductive member is fixed to the photographing unit, the other is fixed to the fixing member. The first conductive member is arranged to be located in a magnetic field of the first magnetic member so as to generate, when the first conductive member is energized, a driving force capable of driving the photographing unit to rotate around the connection shaft in the magnetic field of the first magnetic member.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 15, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Xitong Ma, Yifei Zhang, Kai Zhao, Yu Gu, Hongli Ding
  • Patent number: 11231603
    Abstract: An alloy of GexSbySezTem includes atoms of Ge, Sb, Se, and Te that form a crystalline structure having a plurality of vacancies randomly distributed in the crystalline structure. The alloy can be used to construct an optical device including a first waveguide to guide a light beam and a modulation layer disposed on the first waveguide. The modulation includes the alloy of GexSbySezTem which has a first refractive index n1 in an amorphous state and a second refractive index n2, greater than the first refractive index by at least 1, in a crystalline state. The first waveguide and the modulation layer are configured to guide about 1% to about 50% of the light beam in the modulation layer when the alloy is in the amorphous state and guide no optical mode when the alloy is in the crystalline state.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: January 25, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Zhuoran Fang, Tian Gu, Juejun Hu, Junying Li, Yifei Zhang
  • Publication number: 20220017120
    Abstract: Systems and methods are provided for adding stops to an autonomous vehicle route. A passenger can request an intermediate stop during which the passenger can exit the autonomous vehicle. An intermediate stop request may include a stop duration. Autonomous vehicle driving behavior during the intermediate stop may include parking, driving around, and performing a different route.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 20, 2022
    Applicant: GM Cruise Holdings LLC
    Inventors: Alexander Willem Gerrese, Jeffrey Shaw, Yifei Zhang, Jeremy Stephen Juel
  • Publication number: 20210409149
    Abstract: A method for transmitting data includes: sending, by a server, a first message to a target terminal in response to determining that target data corresponding to the target terminal is long data, wherein the first message is intended to instruct the target terminal to enable a long data transmission mode before a first moment, and the long data is data untransmittable between a terminal and a gateway within one time slot; and sending, by the server, a second message to a first gateway, wherein the second message is intended to instruct the first gateway to enable the long data transmission mode before the first moment to receive the target data from the server, and the target data is sent to the target terminal from the first moment.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 30, 2021
    Inventors: Wei Deng, Yifei Zhang, Hongtao Guan
  • Publication number: 20210394774
    Abstract: An autonomous vehicle (AV) maintenance system engages a user of an AV to assist in maintenance tasks. A sensor interface receives data captured by a sensor of the AV. An issue detector processes the sensor data to detect an issue in the AV. A user interface module instructs a user to perform a maintenance task addressing the detected issue. A verification module verifies that the user successfully completed the maintenance task.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 23, 2021
    Applicant: GM Cruise Holdings LLC
    Inventors: Yifei Zhang, Jeffrey Shaw, Alexander Willem Gerrese, Jeremy Stephen Juel
  • Patent number: 11189044
    Abstract: A method and a device for detecting an object stacking state, and an intelligent shelf are disclosed. The method comprises capturing a color image and a depth image that are aligned with each other above a reference plane in which the object is located, identifying the object and an area occupied by the object in the color image, converting the depth image into a height map relative to the reference plane, determining a reference height of the object based on the height map and the area occupied by the object, acquiring an actual height of the object based on the identified object, and comparing the reference height of the object with the actual height of the object and judging a stacking state of the object based on a result of the comparing.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Yifei Zhang, Kai Zhao
  • Publication number: 20210334574
    Abstract: A commodity detection terminal is disclosed, the commodity detection terminal includes: an image segmentation unit configured to obtain position information of each grid of a goods shelf in an image of the goods shelf based on a first image, which is an image of the goods shelf not placed with commodities; a detector unit configured to obtain a current grid where each commodity is located and a current quantity of each commodity based on a second image, which is a current image of the goods shelf placed with commodities; and a determination unit configured to compare the current grid and the current quantity with a preset grid and a preset quantity of the each commodity, so as to determine whether a status of each commodity satisfies a preset condition. A commodity detection method, an intelligent goods shelf system, a computer device, and a readable medium are also disclosed.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 28, 2021
    Inventors: Huanhuan ZHANG, Tong LIU, Yifei ZHANG, Xiaojun TANG
  • Publication number: 20210333575
    Abstract: Reversible phase-change materials (PCMs) can be added to or incorporated into meta-lenses, wave plates, waveguides, gratings, and other optical components to form active optical devices with controllable and adjustable optical characteristics. Local heating can be used to induce solid-state phase changes and large refractive index changes in the PCMs. The phase and index changes can provide large changes in the device's optical characteristics. Optical devices with PCM can be used for imaging applications, orbital angular momentum control, photonic integrated circuits and optical communication systems, beam steering, and other application.
    Type: Application
    Filed: February 23, 2021
    Publication date: October 28, 2021
    Applicant: Massachusetts Institute of Technology
    Inventors: Juejun Hu, Tian GU, Yifei ZHANG, Carlos Andres Rios Ocampo, Mikhail Shalaginov, Xiaoming Qiu
  • Publication number: 20210336455
    Abstract: A shopping cart charging device, a charging system, an escalator and a shopping cart is disclosed. The shopping cart charging device includes a charging electrode configured to be disposed on a wheel of a shopping cart. The charging electrode is configured to allow electrical connection with a power supply electrode disposed on an escalator, so as to charge the shopping cart.
    Type: Application
    Filed: May 17, 2019
    Publication date: October 28, 2021
    Inventors: Tailiang LI, Yifei ZHANG, Hongtao GUAN, Ying ZHANG, Hua CAO
  • Publication number: 20210197724
    Abstract: The present application discloses a method of controlling a rear-view mirror for a vehicle. The method includes determining a gaze position and a gaze direction of a user; and controlling the rear-view mirror based on the user's gaze position and gaze direction.
    Type: Application
    Filed: June 16, 2017
    Publication date: July 1, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Gu, Ying Zhang, Yifei Zhang, Kai Zhao, Hongli Ding
  • Patent number: 11022438
    Abstract: The present disclosure provides a distance measuring device, a distance measuring system and a distance measuring method. The distance measuring device includes a finger sleeve assembly and a communication component. The finger sleeve assembly includes a first interphalangeal joint and a second interphalangeal joint that is rotatable connected to the first interphalangeal joint. The communication component is disposed on the finger sleeve assembly and is configured to transmit and/or receive a ranging signal.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 1, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifei Zhang, Tailiang Li, Ying Zhang, Kai Zhao