Patents by Inventor Nan ZHU

Nan ZHU 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).

  • Patent number: 10928613
    Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: February 23, 2021
    Assignee: Apple Inc.
    Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
  • Patent number: 10896341
    Abstract: A computer implemented method for surface defect inspection that includes recording an optical image of a surface including a defect; converting the optical image including the defect into a heat map; extracting a region of interest including the defect from the heat map; and comparing the region of interest including the defect from the heat map to a binary classification model using a sliding window based voting mechanism to determine if the defect is greater than or less than a threshold failure value.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: January 19, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sheng Nan Zhu, Guo Qiang Hu, Jun Zhu, Jing Chang Huang, Peng Ji
  • Publication number: 20210004945
    Abstract: A method, a device and a computer program product for image processing are proposed. In the method, whether a first image indicates a defect associated with a target object is determined. In response to determining that the first image indicates the defect, a second image absent from the defect is obtained based on the first image. The defect is identified by comparing the first image with the second image. In this way, the defect associated with the target object in the image can be accurately and efficiently identified or segmented.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 7, 2021
    Inventors: FAN LI, GUO QIANG HU, Sheng Nan Zhu, JUN ZHU, Jing Chang Huang, Peng Ji, Yuan Yuan Ding
  • Publication number: 20200365831
    Abstract: An electronic device may have a support structure that supports a display and lenses. Each lens may be a reflective lens such as a catadioptric lens that receives polarized image light from the display and provides a corresponding image to an eye box. The display may be an emissive display with pixels that include light-emitting diodes. The light-emitting diodes may be overlapped by a light recycling layer such as a reflective polarizer or cholesteric liquid crystal layer. The light recycling layer recycles emitted light to enhance display efficiency.
    Type: Application
    Filed: February 26, 2020
    Publication date: November 19, 2020
    Inventors: Aleksandr N. Polyakov, Aditi G. Kanhere, Brandon E. Clarke, Cheng Chen, John N. Border, Nan Zhu, Rui Liu, Wei-Liang Hsu
  • Publication number: 20200274306
    Abstract: The present application relates to a socket. The socket may include a housing and a plug. At least one of a slot or a hole may be positioned on at least one side of the housing. A clamping conducting strip may be positioned in the housing. At least two elastic conducting contacts may be positioned on a surface of plug. The elastic conducting contacts may connect to a power source, and the plug may be positioned outside the housing. A connecting groove may be positioned on a back side of the housing. An inner contact point may be positioned in the connecting groove and be connected to the clamping conducting strip. A connector may be positioned in the plug. An external contact point may be positioned on the connector. The external contact point may be connected to the elastic conducting contact. The connector may be inserted into the connecting groove.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 27, 2020
    Applicant: SHANUTEC (SHANGHAI) CO., LTD.
    Inventors: Wenting ZHU, Nan LUO, Bowei LU, Chao DU, Xiaoqiao SHEN, Xiaoyu WANG, Yan CHEN
  • Patent number: 10741965
    Abstract: The present disclosure relates to an electrical power transmission and outlet system. The electrical power transmission and outlet system may include an electrical power transmission and outlet device and an external power storage unit. The electrical power transmission and outlet device may include a housing having an opening for receiving an external plug, a connector in the housing for connecting with the external power storage unit; and a plurality of electrical conductors in the housing connected to the connector. When the external plug is inserted into the opening, the conductors are electrically connected to the external plug and disconnected from the connector, and when the external plug is pulled out of the opening, the conductors are electrically disconnected from the external plug and reconnected to the connector.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 11, 2020
    Assignee: SHANUTEC (SHANGHAI) CO., LTD.
    Inventors: Wenting Zhu, Enhua Geng, Guoxin Wu, Nan Luo, Quangang Zhang, Yan Chen, Bowei Lu
  • Patent number: 10732629
    Abstract: A system for fulfilling peer-to-peer transactions by autonomous robot vehicles includes processor(s) and a memory storing instructions which, when executed by the processor(s), cause the system to: receive information on a peer-to-peer transaction between a seller and a buyer for an item, communicate instructions to an autonomous vehicle to travel to a first destination and receive the item, receive an indication that the item has been received, communicate instructions to the autonomous vehicle to travel to a second destination to deliver the item to the buyer, receive a signal indicating that buyer funds are in escrow, and receive a signal indicating that the item is accepted or rejected by the buyer. In a case where the item is accepted, the system communicates a release of the funds from the escrow to the seller. In a case the item is rejected, the system determines a handling itinerary for the item.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: August 4, 2020
    Assignee: Nuro, Inc.
    Inventors: David Ferguson, Jiajun Zhu, Nan Ransohoff, Pichayut Jirapinyo, Cosimo Leipold
  • Patent number: 10725515
    Abstract: Embodiments describe a receiving element that includes a ferromagnetic structure axially symmetrical around a central axis disposed along a length of the ferromagnetic structure. The ferromagnetic structure includes a groove region defining two end regions on opposing sides of the groove region, where the groove region has a smaller length than the two end regions. The receiving element also includes an inductor coil wound about the groove region of the ferromagnetic structure and in between the two end regions.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 28, 2020
    Assignee: Apple Inc.
    Inventors: Blake R. Marshall, Florence W. Ow, Joel N. Ruscher, Liquan Tan, Aidan N. Zimmerman, Reza Nasiri Mahalati, Hao Zhu, Qigen Ji, Madhusudanan Keezhveedi Sampath, Nan Liu, Robert Scritzky, Gianpaolo Lisi
  • Patent number: 10719805
    Abstract: A system for a mobile secure locker in accordance with aspects of the present disclosure includes processor(s) and memory storing instructions. The instructions, when executed by the processor(s), cause the system to provide a user interface for a user to rent a mobile secure locker in an autonomous robot vehicle, receive information through the user interface from the user where the information includes a first destination, a second destination, and a time associated with the second destination, communicate instructions to the autonomous robot vehicle to travel to the first destination to receive the item, receive an indication from the autonomous robot vehicle that the item has been received, communicate instructions to the autonomous robot vehicle to travel to the second destination to deliver the item to the user at the time associated with the second destination, and receive from the autonomous robot vehicle an indication the item is retrieved.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: July 21, 2020
    Assignee: Nuro, Inc.
    Inventors: David Ferguson, Jiajun Zhu, Pichayut Jirapinyo, Nan Ransohoff
  • Publication number: 20200206971
    Abstract: The present invention discloses a ceramic photosensitive resin based anti-precipitation three-dimensional (3D) printing apparatus, including a trough having a light transmitting area at the bottom, a projector directly below the light transmitting area, a printing platform directly above a containing cavity of the trough, a first lifting drive device for driving the printing platform into or out of the containing cavity, a lifting frame, a disturbing wheel mounted on the lifting frame and protruding downward from the lifting frame, a second lifting drive device for driving the lifting frame together with the disturbing wheel to reciprocate in the containing cavity, a rotating motor located outside the containing cavity and having an output shaft passing through the trough in a sealed manner, a friction driving wheel located in the containing cavity and mounted on the output shaft, and a friction driven wheel mounted coaxially with the disturbing wheel.
    Type: Application
    Filed: December 24, 2019
    Publication date: July 2, 2020
    Inventors: Shenggui CHEN, Jiyao ZHOU, Zhenzhong SUN, Nan LI, Jingbo ZHU, Bingheng LU
  • Patent number: 10699887
    Abstract: Embodiments of the present disclosure relate to a preparation and feed apparatus of a standard sample for calibration of a trace-analysis instrument, and especially to a preparation and feed apparatus of a standard sample for calibration of a gas chromatograph-ion mobility spectrometer. When the trace-analysis instrument is being calibrated by taking advantage of the preparation and feed apparatus according to embodiments of the disclosure, it is unnecessary to use an additional dedicated tool and steps to prepare the sample for testing and to use an organic solvent or a dedicated sample application/dispensing tool, resulting in that the trace-analysis instrument is simple and convenient to carry and use, and the substance for calibration is also convenient to store and exchange; moreover, the trace-analysis instrument is also safe, reliable and environmentally friendly.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: June 30, 2020
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Qingjun Zhang, Yuanjing Li, Ziran Zhao, Weiping Zhu, Nan Bai, Qiufeng Ma
  • Patent number: 10693253
    Abstract: The present disclosure relates to a movable socket assembly. The movable socket assembly may include a housing, a plug part installed in said housing, a plurality of elastic conducting contact points formed on said plug part, and an adjusting mechanism for positioning the plug part out of the housing so that the plug part can be removably inserted into an external power outlet. The housing may further include a first housing and a second housing, and the second housing can retract into the first housing to extend the flat insertion piece out of the housing through an opening of the second housing.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 23, 2020
    Assignee: SHANUTEC (SHANGHAI) CO., LTD.
    Inventors: Wenting Zhu, Nan Luo, Quangang Zhang, Guoxin Wu, Jie Zhang, Bowei Lu, Panpan Zhou, Xiaoqiao Shen
  • Publication number: 20200174284
    Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have displays that produce images. Positioners may be used to move the displays relative to the eye positions of a user's eyes. An adjustable optical system may include tunable lenses such as tunable cylindrical liquid crystal lenses. The displays may be viewed through the lenses when the user's eyes are at the eye positions. A sensor may be incorporated into the head-mounted display to measure refractive errors in the user's eyes. The sensor may include waveguides and volume holograms, and a camera for gathering light that has reflected from the retinas of the user's eyes. Viewing comfort may be enhanced by adjusting display positions relative to the eye positions and/or by adjusting lens settings based on the content being presented on the display and/or measured refractive errors.
    Type: Application
    Filed: May 3, 2018
    Publication date: June 4, 2020
    Inventors: Victoria C. Chan, Christina G. Gambacorta, Graham B. Myhre, Hyungryul Choi, Nan Zhu, Phil M. Hobson, William W. Sprague, Edward A. Valko, Qiong Huang, Branko Petljanski, Paul V. Johnson, Brandon E. Clarke, Elijah H. Kleeman
  • Publication number: 20200166738
    Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
  • Publication number: 20200160083
    Abstract: A computer implemented method for surface defect inspection that includes recording an optical image of a surface including a defect; converting the optical image including the defect into a heat map; extracting a region of interest including the defect from the heat map; and comparing the region of interest including the defect from the heat map to a binary classification model using a sliding window based voting mechanism to determine if the defect is greater than or less than a threshold failure value.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 21, 2020
    Inventors: Sheng Nan Zhu, Guo Qiang Hu, Jun Zhu, Jing Chang Huang, Peng Ji
  • Patent number: 10650318
    Abstract: Systems and methods are disclosed for question generation to infer the most probable cause from the observable outcome and known Noisy-OR causal relations. In embodiments, the outcomes are sorted by indices according to an order including but not limited to the outcomes' natural frequency order, expert-labeled order, machine-learning derived order, etc. According to their assigned indices, in embodiments, observed outcomes with lower indices are assigned for exact inference while observed outcomes with higher indices are assigned for variational inference. In embodiments, results of exact inference and variational inference are combined to predict the most probable cause. The unique combination of exact inference and variational inference according to outcome indices makes the probable cause inferring process faster.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 12, 2020
    Assignee: Baidu USA LLC
    Inventors: Yusheng Xie, Nan Du, Jing Zhai, Weicheng Zhu, Dawen Zhou, Wei Fan
  • Patent number: 10630035
    Abstract: The present application relates to a socket. The socket may include a housing and a plug. At least one of a slot or a hole may be positioned on at least one side of the housing. A clamping conducting strip may be positioned in the housing. At least two elastic conducting contacts may be positioned on a surface of plug. The elastic conducting contacts may connect to a power source, and the plug may be positioned outside the housing. A connecting groove may be positioned on a back side of the housing. An inner contact point may be positioned in the connecting groove and be connected to the clamping conducting strip. A connector may be positioned in the plug. An external contact point may be positioned on the connector. The external contact point may be connected to the elastic conducting contact. The connector may be inserted into the connecting groove.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: April 21, 2020
    Assignee: SHANUTEC (SHANGHAI) CO., LTD.
    Inventors: Wenting Zhu, Nan Luo, Bowei Lu, Chao Du, Xiaoqiao Shen, Xiaoyu Wang, Yan Chen
  • Publication number: 20200112121
    Abstract: The present disclosure relates to an electrical power transmission and outlet system. The electrical power transmission and outlet system may include an electrical power transmission and outlet device and an external power storage unit. The electrical power transmission and outlet device may include a housing having an opening for receiving an external plug, a connector in the housing for connecting with the external power storage unit; and a plurality of electrical conductors in the housing connected to the connector. When the external plug is inserted into the opening, the conductors are electrically connected to the external plug and disconnected from the connector, and when the external plug is pulled out of the opening, the conductors are electrically disconnected from the external plug and reconnected to the connector.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: SHANUTEC (SHANGHAI) CO., LTD.
    Inventors: Wenting ZHU, Enhua GENG, Guoxin WU, Nan LUO, Quangang ZHANG, Yan CHEN, Bowei LU
  • Publication number: 20200103412
    Abstract: The present invention relates to methods and systems for detecting one or more analytes in a sample and/or for classifying a sample. In particular, the present invention relates to methods and systems which can be used to detect the analytes in real time and which rely on flowing through a microfluidic device one or more types of sensor molecule each comprising a domain that binds one or more analytes, a chemiluminescent donor domain and an acceptor domain, wherein the separation and relative orientation of the chemiluminescent donor domain and the acceptor domain, in the presence and/or the absence of analyte, is within ±50% of the Forster distance.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 2, 2020
    Inventors: Stephen Charles Trowell, Helen Dacres, Nam Cao Hoai Le, Murat Gel, Yonggang Zhu, Nan Wu
  • Patent number: 10607414
    Abstract: The invention provides a method and a device for seeing through an obstruction based on smart glasses, and a computer-readable storage medium, the method comprising: acquiring a first image of user's view by smart glasses and recognizing an obstruction image in the first image; acquiring a second image of the user's view by at least one image acquisition device; replacing the obstruction image in the first image with portion of the second image that corresponds to the obstruction image, which are spliced to generate an unobstruction image of the user's view. In the invention, the obstruction image in the first image is replaced with a portion of the second image that corresponds to the obstruction image, which can achieve seeing through an obstruction.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: March 31, 2020
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Nan Fu, Yaoqin Xie, Yanchun Zhu, Shaode Yu, Yili Chen, Zhicheng Zhang