Patents by Inventor Zhichun Zhang

Zhichun 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: 20240135315
    Abstract: Systems and methods of analyzing on-shelf price tag labels and products at a product storage facility include an image capture device that captures one or more images of one or more product storage structures at a product storage facility. A computing device communicatively coupled to the image capture device analyzes the images of the product storage structures captured by the image capture device and detects individual price tag labels and individual products located on the product storage structure. Based on the detection of the price tag labels and the products, the computing device also defines separate product storage spaces of the product storage structure, determines which price tag labels are allocated to which of the separate product storage spaces, and associates in a database the price tag labels allocated to the product storage spaces with the products stored in those product storage spaces.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 25, 2024
    Inventors: Jing Wang, Han Zhang, Lingfeng Zhang, Zhaoliang Duan, Mingquan Yuan, Wei Wang, Benjamin R. Ellison, Avinash M. Jade, Raghava Balusu, Zhichun Xiao
  • Patent number: 11966900
    Abstract: A transaction record is created showing a purchase transaction of a customer. A CV profile showing a list of items in the transaction obtained from images is also obtained. The items in the transaction record are compared to items on the list. When there is a discrepancy, an action to take is determined.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: April 23, 2024
    Assignee: Walmart Apollo, LLC
    Inventors: Zhichun Xiao, Lingfeng Zhang, Jon Hammer, Joseph Duffy, Yao Liu, Sicong Fang, Xiang Yao, Pingyuan Wang, Yu Tao, Tianyi Mao, Yutao Tang, Feiyun Zhu, Han Zhang, Chunmei Wang, Pingjian Yu, Muzzammil Afroz, Haining Liu
  • Publication number: 20240119735
    Abstract: Systems and methods of monitoring inventory of a product storage facility include an image capture device configured to move about the product storage areas of the product storage facility and capture images of the product storage areas from various angles. A computing device coupled to the image capture device obtains the images of the product storage areas captured by the image capture device and processes the obtained images of the product storage areas to detect individual products captured in the obtained images. Based on detection of the individual products captured in the images, the computing device analyzes each of the obtained images to detect one or more adjacent product storage structures (shelves, pallets, etc.) and identifies and selects a single image that fully shows a product storage structure of interest and fully shows each of the products stored on the product storage structure of interest.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Inventors: Lingfeng Zhang, Mingquan Yuan, Paul Lewis Lobo, Avinash M. Jade, Zhichun Xiao, William Craig Robinson, JR., Zhaoliang Duan, Wei Wang, Han Zhang, Raghava Balusu, Tianyi Mao
  • Patent number: 11954928
    Abstract: In some embodiments, apparatuses and methods are provided herein useful to detecting text in images. In some embodiments, a system for detecting text in images comprises a database configured to store images and a control circuit configured to retrieve an image, generate, based on the image, a collection of augmented images, detect characters in each of the augmented images, generate bounding boxes for the characters in each of augmented images, recognize the characters in each of the augmented images, select, based on the recognition of the characters in each of the augmented images, candidate characters, wherein the candidate characters are selected based on consistency of the recognition of the characters in each of the augmented images, detect, for the image, a color associated with the characters, and store, in the database, the image, the candidate characters, and the color associated with the characters.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: April 9, 2024
    Assignee: Walmart Apollo, LLC
    Inventors: Haining Liu, Feiyun Zhu, Jon Hammer, Ryan B. Reagan, Pingjian Yu, Zhichun Xiao, Yuqi Zhang, Yao Liu
  • Patent number: 11691266
    Abstract: Embodiments of the present disclosure disclose a mounting bracket and a self-propelled robot. The mounting bracket includes a housing, a rotating shaft and a magnetic positioning assembly. The housing is provided with an inner cavity. The rotating shaft is configured to rotate about an axis in the inner cavity. The magnetic positioning assembly includes a first magnetic element and a second magnetic element which are respectively arranged on the housing and the rotating shaft. The laser distance sensor is attached to the rotating shaft and configured to rotate about the axis. The mounting bracket is configured to prevent the rotating shaft from deviating from the axis by generating a force between the first magnetic element and the second magnetic element in a radial direction of the rotating shaft.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: July 4, 2023
    Assignee: Beijing Roborock Technology Co., Ltd.
    Inventors: Xiaoyu Liu, Shuai Zhi, Zhichun Zhang
  • Publication number: 20230075678
    Abstract: Embodiments of the present disclosure disclose a mounting bracket and a self-propelled robot. The mounting bracket includes a housing, a rotating shaft and a magnetic positioning assembly. The housing is provided with an inner cavity. The rotating shaft is configured to rotate about an axis in the inner cavity. The magnetic positioning assembly includes a first magnetic element and a second magnetic element which are respectively arranged on the housing and the rotating shaft. The laser distance sensor is attached to the rotating shaft and configured to rotate about the axis. The mounting bracket is configured to prevent the rotating shaft from deviating from the axis by generating a force between the first magnetic element and the second magnetic element in a radial direction of the rotating shaft.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 9, 2023
    Inventors: Xiaoyu LIU, Shuai ZHI, Zhichun ZHANG
  • Publication number: 20230008790
    Abstract: A laser ranging device and a robot. The laser ranging device comprises an emitting unit and a receiving unit. The emitting unit comprises an emitter configured to emit a laser pulse to a target object that is to be ranged, and an emitting lens configured for the laser pulse to pass through. The receiving unit comprises a photodetector configured to receive a reflected laser pulse by the target object, and a receiving lens configured for the reflected laser pulse to pass through. The photodetector is encapsulated in an encapsulation module, the encapsulation module is disposed aft of and faces the receiving lens, and a side surface of the encapsulation module facing the receiving lens is constructed as an extinction surface.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 12, 2023
    Inventors: Zhichun ZHANG, Xiaoyu LIU, Ke PAN
  • Publication number: 20220299613
    Abstract: A pulse ranging apparatus, includes: an emitting unit configured to emit an optical pulse signal; a receiving unit configured to receive a reflected optical pulse signal by an obstacle, and convert it into an electrical signal; a threshold comparator, configured to compare the electrical signal with a preset threshold and to generate a pulse trigger signal according to a comparison result; a time delay unit configured to delay the pulse trigger signal by a preset time length to generate a delay trigger signal; a timing unit, configured to determine a time of flight of the optical pulse signal according to an emitting time of the optical pulse signal, a generating time of the delay trigger signal, and a delay of the preset time length; and a distance determination unit configured to determine a distance between the pulse ranging apparatus and the obstacle according to the time of flight.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 22, 2022
    Inventors: Zhichun ZHANG, Yuqing ZHANG, Wei ZHANG, Chao GAO
  • Patent number: 10813361
    Abstract: Disclosed are the use of an Agrimonia pilosa extract in the preparation of an agent for inhibiting or reducing growth virus in tomato plants, and a method for the Agrimonia pilosa extract.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 27, 2020
    Assignee: JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
    Inventors: Huifang Guo, Kaili Zhang, Zhichun Zhang, Dongxiao Zhao
  • Publication number: 20200107553
    Abstract: Disclosed are the use of an Agrimonia pilosa extract in the preparation of an agent for inhibiting or reducing growth virus in tomato plants, and a method for the Agrimonia pilosa extract.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 9, 2020
    Inventors: Huifang GUO, Kaili ZHANG, Zhichun ZHANG, Dongxiao ZHAO
  • Patent number: 8241376
    Abstract: A self-cleaning device of a filtering net is disposed in a wall-hanging type air conditioner and includes a filtering net with an upper filtering net and a front filtering net, which is disposed outside a heat exchanger and is used for absorbing dust in the air passing through the heat exchanger. A dust sweeping assembly with a detachable brush is disposed outside the filtering net, and is used for sweeping the dust adhered on the filtering net. A drive device with a drive motor and a transmission mechanism is used for driving the dust sweeping assembly to slide on the filtering net to sweep off the dust. A dust box is used for collecting the dust and is detachably disposed in the air conditioner to clear up the dust in the box. A dust exchanging device is disposed on the left or right side of the filtering net, and is used for transferring the dust swept out by the sweeping assembly into the dust box.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 14, 2012
    Assignees: Haier Group Corporation, Qingdao Haier Air Conditioner Gen Corp., Ltd.
    Inventors: Zhichun Zhang, Renzhen Chu, Shouxin Zhang, Yu Fu, Zhaozhi Yu, Jiangang Liu, Ting Yang, Baohua Gao
  • Patent number: 8118899
    Abstract: A self-cleaning device of a filtering net of air conditioner is installed on a filtering frame in an air inlet of a dust spiral case of a package air conditioner and is disposed outside the filtering net. A filtering net guide rail with slots is installed on an upper frame and a lower frame. The filtering net is fixed on the filtering net frame by the slots of guide rails. The cleaning device of the filtering net includes a sweeping assembly with a brush, a drive motor fixed on the sweeping assembly, a transmission mechanism connected to the drive motor, a rack group installed on the left and right side of the filtering net, a dust collecting box installed under the filtering net for collecting dust, and a dust exchanging device is disposed between the dust collecting box and the filtering net.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 21, 2012
    Assignees: Haier Group Corporation, Qingdao Haier Air Conditioning Gen Corp., Ltd.
    Inventors: Zhichun Zhang, Renzhen Chu, Shouxin Zhang, Yu Fu, Fanqing Lin, Yongfeng Lei, Fuxian Zhang, Qiyuan Yao
  • Publication number: 20100116463
    Abstract: A self-cleaning device of a filtering net is disposed in a wall-hanging type air conditioner and includes a filtering net with an upper filtering net and a front filtering net, which is disposed outside a heat exchanger and is used for absorbing dust in the air passing through the heat exchanger. A dust sweeping assembly with a detachable brush is disposed outside the filtering net, and is used for sweeping the dust adhered on the filtering net. A drive device with a drive motor and a transmission mechanism is used for driving the dust sweeping assembly to slide on the filtering net to sweep off the dust. A dust box is used for collecting the dust and is detachably disposed in the air conditioner to clear up the dust in the box. A dust exchanging device is disposed on the left or right side of the filtering net, and is used for transferring the dust swept out by the sweeping assembly into the dust box.
    Type: Application
    Filed: October 18, 2007
    Publication date: May 13, 2010
    Applicants: Haier Group Corporation, Qingdao Haier Air Conditioner Gen Corp Ltd
    Inventors: Zhichun Zhang, Renzhen Chu, Shouxin Zhang, Yu Fu, Zhaozhi Yu, Jiangang Liu, Ting Yang, Baohua Gao
  • Publication number: 20100107575
    Abstract: A self-cleaning device of a filtering net of air conditioner is installed on a filtering frame in an air inlet of a dust spiral case of a package air conditioner and is disposed outside the filtering net. A filtering net guide rail with slots is installed on an upper frame and a lower frame. The filtering net is fixed on the filtering net frame by the slots of guide rails. The cleaning device of the filtering net includes a sweeping assembly with a brush, a drive motor fixed on the sweeping assembly, a transmission mechanism connected to the drive motor, a rack group installed on the left and right side of the filtering net, a dust collecting box installed under the filtering net for collecting dust, and a dust exchanging device is disposed between the dust collecting box and the filtering net.
    Type: Application
    Filed: October 18, 2007
    Publication date: May 6, 2010
    Applicants: Haier Group Corproation, Qingdao Haier Air Conditiioner Gen Corp., Ltd.
    Inventors: Zhichun Zhang, Renzhen Chu, Shouxin Zhang, Yu Fu, Fanqing Lin, Yongfeng Lei, Fuxian Zhang, Qiyuan Yao
  • Patent number: 7580633
    Abstract: A method for data-flow protection of an optical interface in data communication equipment includes: receiving an optical-signal from a source-neighboring device, then duplicating the received optical signal into two duplicated optical signals. One of the optical signals is sent to a protected device for processing. According to the protected device working status, either the optical signal having been processed by the protected device or the second duplicated optical signal is selected and sent to a destination-neighboring device. The device includes a first optical-signal duplicating unit and an optical-signal selecting unit. The first optical-signal duplicating unit is used for duplicating an optical signal, and the optical-signal selecting unit is used as a selector. The method and device proposed by the disclosure are independent to network topology and can protect data-flow reliably.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 25, 2009
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chongyang Wang, Zhichun Zhang, Shuyou Dong
  • Publication number: 20090022490
    Abstract: A method for data-flow protection of an optical interface in data communication equipment includes: receiving an optical-signal from a source-neighboring device, then duplicating the received optical signal into two duplicated optical signals. One of the optical signals is sent to a protected device for processing. According to the protected device working status, either the optical signal having been processed by the protected device or the second duplicated optical signal is selected and sent to a destination-neighboring device. The device includes a first optical-signal duplicating unit and an optical-signal selecting unit. The first optical-signal duplicating unit is used for duplicating an optical signal, and the optical-signal selecting unit is used as a selector. The method and device proposed by the disclosure are independent to network topology and can protect data-flow reliably.
    Type: Application
    Filed: September 26, 2008
    Publication date: January 22, 2009
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chongyang Wang, Zhichun Zhang, Shuyou Dong
  • Patent number: 7475445
    Abstract: A transmission mechanism suitable to be used in a washing machine for creating dual-direction driving comprises a drive power input end and two drive power output ends, in which one of drive power output ends is connected to an agitator shaft (10) to drive the agitator shaft rotating in a first direction; while the other of drive power output ends is connected with an inner basket shaft (11) to drive the inner basket shaft rotating in a second direction opposed to the first direction. A washing machine for creating dual-direction washing and a washing method for creating dual-direction washing in a washing machine are disclosed in the present invention. Furthermore, an agitator and an inner basket suitable to be used in the washing machine are disclosed in the present invention.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: January 13, 2009
    Assignees: Haier Group Corporation, Haier Electric Appliances International Co., Ltd.
    Inventors: Yongsen Chai, Zhancun Jiang, Kaiming Wang, Zhichun Zhang, Peishi Lu, Zezhen Hua, Sheng Xu, Zongrui Chi
  • Publication number: 20080314066
    Abstract: The present invention discloses a refrigerator including a refrigeration chamber which comprises an upper wall, a lower wall, two side walls and a rear wall connected to the upper wall, the lower wall and two side walls to form a receiving container surroundingly. The refrigeration chamber is provided therein with a baffle which has a distance of 0 to 10 mm from the rear wall of the refrigeration chamber. As the refrigerating chamber is provided with the baffle, vegetable and fruit etc. can be prevented from frostbiting due to directly contacting with the rear wall of the refrigeration chamber, and the temperature in the refrigeration chamber can be kept even.
    Type: Application
    Filed: July 18, 2005
    Publication date: December 25, 2008
    Applicants: HAIER GROUP CORPORATION, QINGDAO HAIER JOINT STOCK CO., LTD.
    Inventors: Zhichun Zhang, Dongning Wang, Binhou Wang, Guihong Sun
  • Patent number: 7447428
    Abstract: The invention discloses a method and device for data-flow protection of an optical interface in data communication equipment. First, receiving an optical-signal from a source-neighboring device, then duplicating the received optical signal into two duplicated optical signals. One of them is sent to a protected device for processing. According to the protected device working status, either the optical signal having been processed by the protected device or the second duplicated optical signal is selected and sent to a destination-neighboring device. The device of the invention includes a first optical-signal duplicating unit and an optical-signal selecting unit. The first optical-signal duplicating unit is used for duplicating an optical signal, and the optical-signal selecting unit is used as a selector. The method and device proposed by the invention are independent to network topology and can protect data-flow reliably.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: November 4, 2008
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chongyang Wang, Zhichun Zhang, Shunyou Dong
  • Publication number: 20080148745
    Abstract: The present invention relates to a multi-temperature control refrigerator, in which an ice machine is installed and the cooling mode of the refrigerator is a mixed air-cooling and direct cooling mode. Particularly, the present invention relates to a refrigerator having ice-making function, in which the refrigeration cycle is a dual cycle and two different evaporators are included. Due to that the ice making room of the of the refrigerator of the present invention adopts a mixed air-cooling and direct cooling mode, and that impulse solenoid valves and dual temperature control device are introduced to the dual cycle system, the energy is optimally distributed and utilized, the fluctuation of temperature is small and the ice making efficiency of the ice making room and the quality of the ice cubes are much improved. And the whole refrigerator makes less noise, consumes fewer refrigerants and makes ice of good quality rapidly.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 26, 2008
    Inventors: ZhiChun Zhang, Dongning Wang, LingYun Li, Guangming Dang