Patents by Inventor EDDY LIU

EDDY LIU 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: 11022420
    Abstract: A flatness sensing device includes a pressure sensing unit and a controller. The pressure sensing unit includes a plate portion, and a pressure sensor fixed and exposed at an edge of the plate portion. A sensing surface of the pressure sensor is flush with the bottom surface of the plate portion. The pressure sensor senses a pressure or lack of pressure of an object to be tested when it touches the object to be tested. The controller receives the pressure value output from the pressure sensor and determines a flatness of the object to be tested, the controller can issue an alarm on finding non-flatness and cause the degree of flatness to be displayed to a user.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 1, 2021
    Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Xi-Hang Li, Jun-Kang Fang, Po-Lin Su, Wei Wu, Xue-Wei Wang, Yi-Lung Chen, Guo-Yi Cui
  • Patent number: 11026278
    Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: June 1, 2021
    Assignee: HongKong Applied Science and Technology Research Institute Company Limited
    Inventors: Yun Hou, Yuyi Mao, Eddy Chiu, Xiangyu Liu, Yaming Luo, Man Wai Kwan, Kong Chau Eric Tsang
  • Publication number: 20210116967
    Abstract: A transparent display device includes a flexible circuit board, a plurality of lamps, and a plurality of IC components. The flexible circuit board includes lamp fixing portions, a first bending portion, and second bending portions. The lamp fixing portions are spaced apart from each other and arranged in X-axis columns. Each lamp fixing portion extends as a strip along a Y axis. The X axis is perpendicular to the Y axis. Each lamp fixing portion includes an X-axis end edge and a Y-axis side edge. The first bending portion is bent from the end edge of each lamp fixing portion. Each second bending portion is bent from the side edge of one lamp fixing portion.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 22, 2021
    Inventors: EDDY LIU, JUN-KANG FANG, WEI WU, BIN WANG
  • Publication number: 20210009001
    Abstract: A battery exchange method is implemented in a control device communicatively coupled to a work machine and a battery exchange device. The method includes receiving a battery exchange request from the work machine, calculating a synchronization location and a synchronization time of the work machine and the battery exchange device, generating pre-judgment information, sending the pre judgment information and a synchronization command to the battery exchange device to control the battery exchange device to move toward the work machine according to the pre-judgment information and the synchronization command, continually receiving the first status information from the work machine and second status information from the battery exchange device, determining whether synchronization of the work machine and the battery exchange device is complete, and sending a battery exchange command to the battery exchange device to control the battery exchange device to exchange the battery of the work machine.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 14, 2021
    Inventors: EDDY LIU, WEI-DA YANG, LI-QUAN ZHANG, QING CAI, MING LAN
  • Publication number: 20200356109
    Abstract: A magnetic stripe sensor adaptable for different automated guided vehicles and with enhanced precision of guidance includes a main body, a plurality of first assembly members, and a plurality of second assembly members. The first assembly members and the second assembly members are respectively fixed to a first and a second surface of the main body. Each assembly member defines a slot, and each second assembly member includes a guiding block. The size and shape of the guiding block matches those of the slot, allowing combinations of first and second assembly members as desired. A combined magnetic navigation sensor assembled from first and second assembly members is also disclosed.
    Type: Application
    Filed: September 9, 2019
    Publication date: November 12, 2020
    Inventors: EDDY LIU, WEI-DA YANG, XIAO-MING LV, SHU-FA JIANG, SHUANG-WEN CHEN
  • Patent number: 10823628
    Abstract: A device to sense degree of twist in a screwdriver and the magnitude of force applied includes a contacting portion, a deformation portion, a sensing portion, and a processor. The contacting portion receives a grip and twist pressure through the deformation portion which is tiltedly fixed to the contacting portion. The deformation portion carries the sensing portion and elastically deforms under the force and/or the torsion. The sensing portion detects a deformation of the deformation portion and generates a corresponding electrical signal. The processor receives the signal and determines the values of the twist caused and the force applied.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: November 3, 2020
    Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Po-Lin Su, Jie-Peng Kang, Xue-Rui Deng, Liu-Ming Zhang, Wei-Wei Hao, Su-Min Li, Guang-Xing Wang, Rui Li, Jie Lai
  • Patent number: 10760649
    Abstract: A speed reducer includes an input shaft, an output shaft, and a gear assembly coupled to the input shaft. The gear assembly includes a housing, an external gear, and at least two internal gears. The external gear is located within the housing and inscribes the at least two internal gears. One side of the at least two internal gears is rotatably coupled to the input shaft, and another side of the at least two internal gears is coupled to a connecting column of the output shaft. The at least two internal gears are offset on the input shaft, and the input shaft drives the at least two internal gears to maintain engagement with the external gear. The connecting column maintains transmission of the output shaft and the at least two internal gears.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: September 1, 2020
    Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Wei-Da Yang, Po-Lin Su, Jie-Peng Kang, Liu-Ming Zhang, Su-Min Li, Guang-Xing Wang, Jie Lai
  • Patent number: 10706531
    Abstract: A method for checking the proper dispensation of glue onto a circuit board in manufacture includes the use of fluorescent materials in such glue, activating a light source to illuminate a circuit board when the circuit board is placed on an electronic device, and controlling an image capturing device to capture an image of the circuit board. The image captured by the capturing device is compared with a standard stored image of the circuit board, and a determination is made as to whether the circuit board passes test according to the comparison.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 7, 2020
    Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Xi-Hang Li, Jun-Kang Fang
  • Publication number: 20200209081
    Abstract: A device to sense degree of twist in a screwdriver and the magnitude of force applied includes a contacting portion, a deformation portion, a sensing portion, and a processor. The contacting portion receives a grip and twist pressure through the deformation portion which is tiltedly fixed to the contacting portion. The deformation portion carries the sensing portion and elastically deforms under the force and/or the torsion. The sensing portion detects a deformation of the deformation portion and generates a corresponding electrical signal. The processor receives the signal and determines the values of the twist caused and the force applied.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 2, 2020
    Inventors: EDDY LIU, PO-LIN SU, JIE-PENG KANG, XUE-RUI DENG, LIU-MING ZHANG, WEI-WEI HAO, SU-MIN LI, GUANG-XING WANG, RUI LI, JIE LAI
  • Publication number: 20200200520
    Abstract: A flatness sensing device includes a pressure sensing unit and a controller. The pressure sensing unit includes a plate portion, and a pressure sensor fixed and exposed at an edge of the plate portion. A sensing surface of the pressure sensor is flush with the bottom surface of the plate portion. The pressure sensor senses a pressure or lack of pressure of an object to be tested when it touches the object to be tested. The controller receives the pressure value output from the pressure sensor and determines a flatness of the object to be tested, the controller can issue an alarm on finding non-flatness and cause the degree of flatness to be displayed to a user.
    Type: Application
    Filed: March 11, 2019
    Publication date: June 25, 2020
    Inventors: EDDY LIU, XI-HANG LI, JUN-KANG FANG, PO-LIN SU, WEI WU, XUE-WEI WANG, YI-LUNG CHEN, GUO-YI CUI
  • Patent number: 10676302
    Abstract: A stub plucking device includes a transfer mechanism, a grasping mechanism, and a sensing mechanism. The grasping mechanism is driven by the transfer mechanism to move toward or away from a reel. The grasping mechanism includes a connector mounting a movable clasp, a fixed clasp, and a grasping driving member. The grasping driving member drives the movable clasp to move toward the fixed clasp to grasp an end stub of the reel. The sensing mechanism senses whether a contact force between the fixed clasp and the reel has reached a predetermined force. When the sensing mechanism senses that the contact force between the fixed clasp and the reel has reached the predetermined force, the transfer mechanism drives the grasping mechanism to move a predetermined distance away from the reel.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 9, 2020
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Xi-Hang Li, Eddy Liu, Jun Chen
  • Patent number: 10676012
    Abstract: An unpowered stop mechanism includes a mounting seat, a driving member, and a stop assembly. The stop assembly is located on the mounting seat and oppositely positioned to the driving member. The stop assembly includes a guide member, a stop member, and a hinge arm. The stop member is received within a guide slot defined in the guide member. The hinge arm is pivotably coupled to the guide member. The hinge arm protrudes from the guide member and is oppositely positioned to the driving member. The driving member drives the hinge arm to drive the stop member to retract within the guide slot. Then the driving member is moved to be spaced from the hinge arm, the stop member is driven by a resilient member received within the guide slot to protrude out of the guide slot.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 9, 2020
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yan-Fang Yan, Jing-Wei Liu, Shun-Ming Wang, Zhen-Ke Zhang, Shi-Li Zhang, Zheng-Hu Jiang, Ri-Qing Chen, Xue-Feng Che, Xi-Hang Li, Eddy Liu
  • Publication number: 20200067329
    Abstract: An electric vehicle automatic charging system includes an electric vehicle including a receiving cavity with an opening and a shutter for closing the opening, a battery assembly receiving in the receiving cavity and a charging device. The battery assembly includes a battery pack including an electrode connecting member and a movable bracket including a magnetic member. The charging device includes a support table, a support plate, an electromagnetic fitting member being capable of generating a magnetic force for attracting the magnetic member, and a charger. When the shutter comes into contact with the support plate, the shutter changes from a closed state to an open state, the movable bracket drives the battery pack to move away from the receiving cavity along the support plate by the magnetic force until the electrode connecting member is electrically connected to the charger. An electric vehicle automatic charging method is also provided.
    Type: Application
    Filed: February 19, 2019
    Publication date: February 27, 2020
    Inventors: EDDY LIU, WEI-DA YANG, LI-QUAN ZHANG, RUI-RUI LV, ZHI-JUN PENG
  • Publication number: 20190351813
    Abstract: An unpowered stop mechanism includes a mounting seat, a driving member, and a stop assembly. The stop assembly is located on the mounting seat and oppositely positioned to the driving member. The stop assembly includes a guide member, a stop member, and a hinge arm. The stop member is received within a guide slot defined in the guide member. The hinge arm is pivotably coupled to the guide member. The hinge arm protrudes from the guide member and is oppositely positioned to the driving member. The driving member drives the hinge arm to drive the stop member to retract within the guide slot. Then the driving member is moved to be spaced from the hinge arm, the stop member is driven by a resilient member received within the guide slot to protrude out of the guide slot.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 21, 2019
    Inventors: YAN-FANG YAN, JING-WEI LIU, SHUN-MING WANG, ZHEN-KE ZHANG, SHI-LI ZHANG, ZHENG-HU JIANG, RI-QING CHEN, XUE-FENG CHE, XI-HANG LI, EDDY LIU
  • Publication number: 20190346021
    Abstract: A speed reducer includes an input shaft, an output shaft, and a gear assembly coupled to the input shaft. The gear assembly includes a housing, an external gear, and at least two internal gears. The external gear is located within the housing and inscribes the at least two internal gears. One side of the at least two internal gears is rotatably coupled to the input shaft, and another side of the at least two internal gears is coupled to a connecting column of the output shaft. The at least two internal gears are offset on the input shaft, and the input shaft drives the at least two internal gears to maintain engagement with the external gear. The connecting column maintains transmission of the output shaft and the at least two internal gears.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 14, 2019
    Inventors: EDDY LIU, WEI-DA YANG, PO-LIN SU, JIE-PENG KANG, LIU-MING ZHANG, SU-MIN LI, GUANG-XING WANG, JIE LAI
  • Patent number: 10379157
    Abstract: A system for determining a position of a test probe of a test fixture applied to a test pad on a dummy board is disclosed. The test pad includes conductive test zones, resistors, a first insulating zone, and a plurality of second insulating zones. Each resistor has a different resistance. Each resistor is connected to a different test zone. The test zones include a first test zone and a surrounding plurality of second test zones. The first test zone is insulated from the second test zones by the first insulating zone. Adjacent second test zones are insulated from each other by a different second insulating zone. Probe correction can be carried out according to the value of resistance read by a resistance measuring device which stores a correspondence table, and position of the probe adjusted accordingly.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 13, 2019
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Wei-Da Yang, Xiao-Feng Hou, Guo-Dong Liang
  • Patent number: 10225968
    Abstract: A fixture to enable correct positioning of components in surface mount technology (SMT) field includes a tray, a positioning mechanism, at least one first upper magnet, at least one second upper magnet, and at least one lower magnet. The tray has at least one positioning hole. The positioning mechanism includes a base member, at least one sliding assembly, and at least one positioning post. The sliding assembly is slidably mounted to the base member. The positioning post is mounted to the base member, and disposed in the positioning hole of the tray. The first upper magnet and the second upper magnet are attached to the tray. The lower magnet is attached to the sliding assembly. The tray and the positioning mechanism are repulsive when the lower magnet aligns with the first upper magnet but are attracted when the lower magnet aligns with the second upper magnet.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: March 5, 2019
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Eddy Liu, Xi-Hang Li, Xue-Feng Che, Ri-Qing Chen, Xing Xia
  • Publication number: 20180275191
    Abstract: A system for determining a position of a test probe of a test fixture applied to a test pad on a dummy board is disclosed. The test pad includes conductive test zones, resistors, a first insulating zone, and a plurality of second insulating zones. Each resistor has a different resistance. Each resistor is connected to a different test zone. The test zones include a first test zone and a surrounding plurality of second test zones. The first test zone is insulated from the second test zones by the first insulating zone. Adjacent second test zones are insulated from each other by a different second insulating zone. Probe correction can be carried out according to the value of resistance read by a resistance measuring device which stores a correspondence table, and position of the probe adjusted accordingly.
    Type: Application
    Filed: September 15, 2017
    Publication date: September 27, 2018
    Inventors: EDDY LIU, WEI-DA YANG, XIAO-FENG HOU, GUO-DONG LIANG
  • Publication number: 20180268378
    Abstract: A system for evaluating all functions of a mobile phone to benefit recycling purposes includes a robotic arm assembly, a camera test device, a touch test device, and a 3D Touch test device. The camera test device has a backlight screen and a target picture. The touch test device has at least one first stylus for applying input to a touch screen of a mobile phone. The 3D Touch test device has at least one second stylus for applying strong presses to the touch screen of the mobile phone. The robotic arm assembly can also move the mobile phone to enable image-capturing. A method for functionality-testing is also provided.
    Type: Application
    Filed: September 6, 2017
    Publication date: September 20, 2018
    Inventors: EDDY LIU, YU-NAN LIN, WEI-DA YANG, PO-LIN SU, GUO-WEI LIU, QING WANG, JIE-PENG KANG, XIAO-JUN JIANG
  • Publication number: 20180189940
    Abstract: A method for checking the proper dispensation of glue onto a circuit board in manufacture includes the use of fluorescent materials in such glue, activating a light source to illuminate a circuit board when the circuit board is placed on an electronic device, and controlling an image capturing device to capture an image of the circuit board. The image captured by the capturing device is compared with a standard stored image of the circuit board, and a determination is made as to whether the circuit board passes test according to the comparison.
    Type: Application
    Filed: December 26, 2017
    Publication date: July 5, 2018
    Inventors: EDDY LIU, XI-HANG LI, JUN-KANG FANG