Patents by Inventor Cheng Dai

Cheng Dai 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: 20250228157
    Abstract: A mower includes a body including a housing assembly, a cutting element used for performing a cutting function and including a first blade and a second blade, a chassis for accommodating at least part of the cutting element, a drive assembly including a first electric motor configured to drive the first blade and a second electric motor configured to drive the second blade, and a battery pack configured to power the drive assembly. The mower further includes a synchronization member drivingly connected to the first electric motor and the second electric motor.
    Type: Application
    Filed: December 30, 2024
    Publication date: July 17, 2025
    Inventors: Toshinari Yamaoka, Cheng Dai, Xuwen Gao, Guigong Ni
  • Publication number: 20250042385
    Abstract: A vehicle-type driving device includes a traveling assembly including multiple traveling wheels; a steering wheel configured to control the vehicle-type driving device to steer; a traveling motor for driving the vehicle-type driving device to steer at a target angular velocity, where the ratio of the target angular velocity to the change in the steering angle of the steering wheel is defined as a steering ratio; and a control device configured to, when the traveling speed of the vehicle-type driving device is within a preset range, set the steering ratio according to a steering ratio curve function, where variables of the steering ratio curve function include the steering angle of the steering wheel and the traveling speed of the vehicle-type driving device.
    Type: Application
    Filed: October 24, 2024
    Publication date: February 6, 2025
    Inventors: Tonghao Li, Lei Wang, Xu Chen, Jian Du, Cheng Dai, Dezhong Yang, Zhen Wang, Min Zhang
  • Patent number: 12201059
    Abstract: A riding lawn mower includes a seat, a frame, a mowing element, a deck surrounding, and forming a mowing space for accommodating at least part of the mowing element, and a first motor for driving the mowing element to rotate. The riding lawn mower may further include a footrest provided on a front side of the seat and used to support a user's feet, wherein the footrest comprises a bottom plate and a front cover protruding relative to the bottom plate. The riding lawn mower may include an indicator device for displaying a remaining capacity of the power supply device, and the indicator device is at least partially mounted to the front cover of the footrest.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: January 21, 2025
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Zhen Wang, Toshinari Yamaoka, Xi Chen, Fan Gao, Dezhong Yang, Lei Wang, Cheng Dai, Qiqi Yin, Zhongning Ding
  • Patent number: 12150405
    Abstract: A riding lawn mower includes: a seat; a frame; a mowing element; a deck surrounding and forming a mowing space for accommodating at least part of the mowing element; and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly including a rotor shaft enabled to rotate about a rotation axis and a stator assembly, a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing; the deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: November 26, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Zhen Wang, Toshinari Yamaoka, Xi Chen, Fan Gao, Dezhong Yang, Lei Wang, Cheng Dai, Qiqi Yin, Zhongning Ding
  • Publication number: 20240324501
    Abstract: A riding lawn mower includes a seat, a chassis configured to support the seat, a cutting assembly mounted to the chassis, a walking assembly configured to drive the riding lawn mower to walk on a plane, and a steering wheel assembly. The steering wheel assembly includes a steering wheel operable by the user and a connecting rod configured to connect the steering wheel and the chassis. The steering wheel assembly further includes a pivot assembly that rotatably connects the connecting rod and the chassis, and the pivot assembly enables the steering wheel assembly to switch between a working position and a storage position. A distance between the steering wheel and the plane when the steering wheel assembly is in the storage position is smaller than a distance between the steering wheel and the plane when the steering wheel assembly is in the working position.
    Type: Application
    Filed: June 11, 2024
    Publication date: October 3, 2024
    Inventors: Cheng Dai, Xi Chen, Toshinari Yamaoka, Min Zhang, Zhen Wang, Lei Wang, Xu Chen
  • Patent number: 12035654
    Abstract: A riding lawn mower includes a seat, a chassis configured to support the seat, a cutting assembly mounted to the chassis, a walking assembly configured to drive the riding lawn mower to walk on a plane, and a steering wheel assembly. The steering wheel assembly includes a steering wheel operable by the user and a connecting rod configured to connect the steering wheel and the chassis. The steering wheel assembly further includes a pivot assembly that rotatably connects the connecting rod and the chassis, and the pivot assembly enables the steering wheel assembly to switch between a working position and a storage position. A distance between the steering wheel and the plane when the steering wheel assembly is in the storage position is smaller than a distance between the steering wheel and the plane when the steering wheel assembly is in the working position.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: July 16, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Cheng Dai, Xi Chen, Toshinari Yamaoka, Min Zhang, Zhen Wang, Lei Wang, Xu Chen
  • Publication number: 20240172588
    Abstract: A riding lawn mower includes: a seat; a frame; a mowing element; a deck surrounding and forming a mowing space for accommodating at least part of the mowing element; and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly including a rotor shaft enabled to rotate about a rotation axis and a stator assembly, a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing; the deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Inventors: Zhen Wang, Toshinari Yamaoka, Xi Chen, Fan Gao, Dezhong Yang, Lei Wang, Cheng Dai, Qiqi Yin, Zhongning Ding
  • Publication number: 20240081178
    Abstract: A riding mowing device includes a frame; a cutting assembly; a traveling assembly configured to drive the riding mowing device to travel and including a first traveling assembly located on the front part of the riding mowing device and a second traveling assembly located on the rear part of the riding mowing device, where the first traveling assembly and the second traveling assembly are separately mounted on the frame; and a power supply assembly configured to supply power to at least the cutting assembly and the traveling assembly and mounted to the frame. The riding mowing device further includes one of a steering wheel assembly and an operating lever assembly, and one of the steering wheel assembly and the operating lever assembly is selectively mounted on the frame.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Zhen Wang, Cheng Dai, Toshinari Yamaoka, Shuai Geng
  • Publication number: 20230292660
    Abstract: A riding lawn mower includes a seat, a frame, a mowing element, a deck surrounding, and forming a mowing space for accommodating at least part of the mowing element, and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly having a rotor shaft enabled to rotate about a rotation axis and a stator assembly, and a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing. The deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.
    Type: Application
    Filed: April 21, 2023
    Publication date: September 21, 2023
    Inventors: Zhen Wang, Toshinari Yamaoka, Xi Chen, Fan Gao, Dezhong Yang, Lei Wang, Cheng Dai, Qiqi Yin, Zhongning Ding
  • Publication number: 20230284560
    Abstract: A riding lawn mower includes a seat, a chassis configured to support the seat, a cutting assembly mounted to the chassis, a walking assembly configured to drive the riding lawn mower to walk on a plane, and a steering wheel assembly. The steering wheel assembly includes a steering wheel operable by the user and a connecting rod configured to connect the steering wheel and the chassis. The steering wheel assembly further includes a pivot assembly that rotatably connects the connecting rod and the chassis, and the pivot assembly enables the steering wheel assembly to switch between a working position and a storage position. A distance between the steering wheel and the plane when the steering wheel assembly is in the storage position is smaller than a distance between the steering wheel and the plane when the steering wheel assembly is in the working position.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 14, 2023
    Inventors: Cheng Dai, Xi Chen, Toshinari Yamaoka, Min Zhang, Zhen Wang, Lei Wang, Xu Chen
  • Publication number: 20230200294
    Abstract: A riding mowing device includes a seat, a frame, a cutting assembly, a walking assembly, a power supply assembly, and a steering wheel assembly. The cutting assembly includes a cutting deck and a mowing element. The cutting assembly is mounted to the frame. The walking assembly is used for driving the riding mowing device to walk. The power supply assembly is used for powering at least the cutting assembly and the walking assembly and mounted to the frame. The steering wheel assembly includes a steering wheel for the user to operate and a support rod connecting the steering wheel to the frame. The riding mowing device further includes a mounting assembly including a locked position and an unlocked position, where when the mounting assembly is in the unlocked position, the steering wheel assembly is switchable between at least a first working position and a second working position.
    Type: Application
    Filed: December 2, 2022
    Publication date: June 29, 2023
    Inventors: Cheng Dai, Zhusheng Nie, Toshinari Yamaoka
  • Publication number: 20220304226
    Abstract: A riding mower includes a seat for a user to sit on, a main frame configured to support the seat, a power output assembly configured to mow vegetation, a traveling assembly configured to enable the riding mower to travel, an operating assembly configured to be operated by the user, a control module configured to control the riding mower, and a power supply apparatus configured to supply power to the riding mower. At least a portion of the control module is disposed on the lower side of the seat, and the control module comprises a drive control board for controlling the power output assembly and the traveling assembly, a fuse, and a power supply management module.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Inventors: Dezhong Yang, Zhongyan Hou, Jicun Cai, Zhen Wang, Qian Liu, Fan Gao, Xi Chen, Fangjie Nie, Toshinari Yamaoka, Cheng Dai, Rong Wu
  • Publication number: 20210329836
    Abstract: A riding lawn mower includes: a seat; a frame; a mowing element; a deck surrounding and forming a mowing space for accommodating at least part of the mowing element; and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly including a rotor shaft enabled to rotate about a rotation axis and a stator assembly, a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing; the deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Zhen Wang, Toshinari Yamaoka, Xi Chen, Fan Gao, Dezhong Yang, Lei Wang, Cheng Dai, Qiqi Yin, Zhongning Ding
  • Patent number: 11100926
    Abstract: The disclosure provides an intelligent voice system and a method for controlling a projector. The system includes a voice assistant, a cloud service platform, a projector, and a management server. When the voice assistant receives a voice signal for controlling the projector, the voice assistant extracts keywords from the voice signal and transmits the keywords to the cloud service platform, wherein the keywords include an alias corresponding to the projector and a first control command, and the cloud service platform includes second control commands. The cloud service platform analyzes the first control command, retrieves the corresponding second control command according to the first control command, and transmits the alias of the projector and the corresponding second control command to the management server. The management server accesses/controls the projector in response to the alias and adjusts the projector as a first operating state according to the corresponding second control command.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 24, 2021
    Assignee: Coretronic Corporation
    Inventors: Ming-Cheng Lin, Yu-Meng Chen, Wei-Hsin Kan, Ji-Cheng Dai
  • Patent number: 11087754
    Abstract: The disclosure provides an intelligent voice system and a method for controlling a projector. The system includes a voice assistant, a cloud service platform, a projector, and a management server. When the voice assistant receives a voice signal for controlling a video platform interface, the voice assistant extracts keywords from the voice signal and forwards the keywords to the cloud service platform, wherein the keywords include an alias corresponding to the projector and a first interface control command. The cloud service platform analyzes the first interface control command, acquires the corresponding second interface control command according to the first interface control command, and transmits the alias of the projector and the corresponding second interface control command to the management server. The management server accesses the projector in response to the alias and adjusts a projection situation of the video platform interface projected by the projector.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 10, 2021
    Assignee: Coretronic Corporation
    Inventors: Ming-Cheng Lin, Yu-Meng Chen, Wei-Hsin Kan, Ji-Cheng Dai
  • Publication number: 20200105258
    Abstract: The disclosure provides an intelligent voice system and a method for controlling a projector. The system includes a voice assistant, a cloud service platform, a projector, and a management server. When the voice assistant receives a voice signal for controlling the projector, the voice assistant extracts keywords from the voice signal and transmits the keywords to the cloud service platform, wherein the keywords include an alias corresponding to the projector and a first control command, and the cloud service platform includes second control commands. The cloud service platform analyzes the first control command, retrieves the corresponding second control command according to the first control command, and transmits the alias of the projector and the corresponding second control command to the management server. The management server accesses/controls the projector in response to the alias and adjusts the projector as a first operating state according to the corresponding second control command.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 2, 2020
    Applicant: Coretronic Corporation
    Inventors: Ming-Cheng Lin, Yu-Meng Chen, Wei-Hsin Kan, Ji-Cheng Dai
  • Publication number: 20200105259
    Abstract: The disclosure provides an intelligent voice system and a method for controlling a projector. The system includes a voice assistant, a cloud service platform, a projector, and a management server. When the voice assistant receives a voice signal for controlling a video platform interface, the voice assistant extracts keywords from the voice signal and forwards the keywords to the cloud service platform, wherein the keywords include an alias corresponding to the projector and a first interface control command. The cloud service platform analyzes the first interface control command, acquires the corresponding second interface control command according to the first interface control command, and transmits the alias of the projector and the corresponding second interface control command to the management server. The management server accesses the projector in response to the alias and adjusts a projection situation of the video platform interface projected by the projector.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 2, 2020
    Applicant: Coretronic Corporation
    Inventors: Ming-Cheng Lin, Yu-Meng Chen, Wei-Hsin Kan, Ji-Cheng Dai
  • Patent number: 8838842
    Abstract: A method for optimizing control circuit for FC HDDs in a system includes determining the number of subsystems supported in a FC loop and the number of HDDs to be supported in each of the subsystems, analyzing binary values of address of all HDDs for each of the subsystems, enumerating logical variations of the address selection signals according to the analyzed binary values to obtain logic combinations for the address selection signals, analyzing logic relations between these logic combinations and a system address signal, selecting logic components required according to the found logic relations, and calculating the total number of required logic components and the number of address selections signals that can share an output pin of each of the required logic components based on properties of output pins of the logic components and maximum input current of the address selection signals.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 16, 2014
    Assignee: Jabil Circuit, Inc.
    Inventors: Guang-Cheng Dai, Wei Qin
  • Publication number: 20130229726
    Abstract: A method for optimizing control circuit for FC HDDs in a system includes determining the number of subsystems supported in a FC loop and the number of HDDs to be supported in each of the subsystems, analyzing binary values of address of all HDDs for each of the subsystems, enumerating logical variations of the address selection signals according to the analyzed binary values to obtain logic combinations for the address selection signals, analyzing logic relations between these logic combinations and a system address signal, selecting logic components required according to the found logic relations, and calculating the total number of required logic components and the number of address selections signals that can share an output pin of each of the required logic components based on properties of output pins of the logic components and maximum input current of the address selection signals.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: Jabil Circuit, Inc.
    Inventors: Guang-Cheng Dai, Wei Qin
  • Publication number: 20060120107
    Abstract: An LED backlight module comprises a light box, at least one heat conductor, placed in said light box, a plurality of light emitting diodes (LEDs), mounted on said heat conductor, a plurality of light masks, covering said plurality of light emitting diodes, and a optical cover plate, set on said light box at upper side, thereof, diffusing light that passes through it.
    Type: Application
    Filed: February 14, 2005
    Publication date: June 8, 2006
    Inventors: Yu-Nan Pao, Po-Hung Yao, Ming-Cheng Dai, Mao-Hong Lu