Patents by Inventor Zhenwei Wang

Zhenwei Wang 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: 20240115162
    Abstract: In order to calculate, with a high degree of accuracy, step lengths for both feet on the basis of a physical quantity relating to the movement of one foot, this calculation device includes: a detection unit that generates a walking waveform using sensor data and detects a walking event from the generated walking waveform, the sensor data being based on a physical quantity that is measured by a sensor positioned on one foot of a walker and relates to the movement of the foot; and a step length calculation unit that calculates the step lengths for both left and right feet on the basis of the timing of the detected walking event.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 11, 2024
    Applicant: NEC CORPORATION
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240115164
    Abstract: In order to detect a detailed walking event in both legs on the basis of a physical quantity that relates to leg motion measured by a sensor mounted on one leg, there is provided a detection device including: an extraction unit for generating time-series data that accompany walking, using sensor data based on a physical quantity that relates to leg motion measured by a sensor installed on one leg part of a walking person, and extracting a walking waveform from the generated time-series data; and a detection unit for detecting a walking event in both legs of the walking person from the walking waveform extracted by the extraction unit.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 11, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240115163
    Abstract: In order to calculate, with a high degree of accuracy, step lengths for both feet on the basis of a physical quantity relating to the movement of one foot, this calculation device includes: a detection unit that generates a walking waveform using sensor data and detects a walking event from the generated walking waveform, the sensor data being based on a physical quantity that is measured by a sensor positioned on one foot of a walker and relates to the movement of the foot; and a step length calculation unit that calculates the step lengths for both left and right feet on the basis of the timing of the detected walking event.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240115214
    Abstract: Provided is a measurement device comprising: a detection unit which detects a walking event from time series data of sensor data pertaining to the movements of feet in order to measure lower limbs on the basis of the sensor data acquired by a single sensor; and a measurement unit which measures the lower limbs by using the sensor data for a prescribed period starting from a walking event timing on the basis of a geometric model to which a constraint condition pertaining to the movements of the lower limbs is given.
    Type: Application
    Filed: February 14, 2022
    Publication date: April 11, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Zhenwei WANG, Kenichiro FUKUSHI
  • Publication number: 20240108251
    Abstract: In order to calculate, with a high degree of accuracy, step lengths for both feet on the basis of a physical quantity relating to the movement of one foot, this calculation device includes: a detection unit that generates a walking waveform using sensor data and detects a walking event from the generated walking waveform, the sensor data being based on a physical quantity that is measured by a sensor positioned on one foot of a walker and relates to the movement of the foot; and a step length calculation unit that calculates the step lengths for both left and right feet on the basis of the timing of the detected walking event.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 4, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240108249
    Abstract: In order to detect a detailed walking event in both legs on the basis of a physical quantity that relates to leg motion measured by a sensor mounted on one leg, there is provided a detection device including: an extraction unit for generating time-series data that accompany walking, using sensor data based on a physical quantity that relates to leg motion measured by a sensor installed on one leg part of a walking person, and extracting a walking waveform from the generated time-series data; and a detection unit for detecting a walking event in both legs of the walking person from the walking waveform extracted by the extraction unit.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240099608
    Abstract: In order to detect a detailed walking event in both legs on the basis of a physical quantity that relates to leg motion measured by a sensor mounted on one leg, there is provided a detection device including: an extraction unit for generating time-series data that accompany walking, using sensor data based on a physical quantity that relates to leg motion measured by a sensor installed on one leg part of a walking person, and extracting a walking waveform from the generated time-series data; and a detection unit for detecting a walking event in both legs of the walking person from the walking waveform extracted by the extraction unit.
    Type: Application
    Filed: December 12, 2023
    Publication date: March 28, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Patent number: 11941480
    Abstract: An information processing system includes an identification unit configured to identify unique information on shoes using at least part of a captured image of the shoes, and a setting unit configured to set an association between an acquisition device configured to acquire the unique information and a module device attached to the shoes based on the unique information.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 26, 2024
    Assignee: NEC CORPORATION
    Inventors: Kenichiro Fukushi, Zhenwei Wang, Hiroaki Nakano, Toshinori Takemura, Kentaro Nakahara, Hannah Pokka, Itsumi Kato, Akira Kamei, Chenhui Huang, Hiroshi Kajitani, Koichi Morikawa, Hiroshi Okuda
  • Publication number: 20240085395
    Abstract: A water quality detection system including a light source, a spectrometer, and a data processor is disclosed, and relates to the technical field of detection systems. The light source emits excitation light pulse trains of different wavelengths to a to-be-detected water sample contained in a sample cell, where the excitation light pulse trains of different wavelengths may be emitted in a time-division manner, to excite the to-be-detected water sample, thereby generating fluorescence separately corresponding to the excitation light pulse trains of different wavelengths. The spectrometer receives the fluorescence and output a fluorescence spectrum based on the fluorescence.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Inventor: Zhenwei Wang
  • Publication number: 20240084203
    Abstract: A heat recovery apparatus and process for cracked gas are provided. The cracked gas comprises liquid feedstock cracked gas and gaseous feedstock cracked gas, and the apparatus comprises a heat recovery device for liquid feedstock cracked gas, a heat recovery device for gaseous feedstock cracked gas and a heavy component removal unit. The invention solves the problems in the art, i.e., incomplete heat recovery technology for cracked gas, insufficient control of viscosity of quench oil, high capital investment and large footprint of the equipment, as well as unstable operation and high energy consumption.
    Type: Application
    Filed: January 27, 2022
    Publication date: March 14, 2024
    Inventors: Zhenwei WANG, Liqing YANG, Bairen ZHAO, Mingrui ZHAO, Gang LIU
  • Publication number: 20240065581
    Abstract: In order to provide a gait measurement system by which gait symmetry in day-to-day life can easily be measured, the present invention offers a gait measurement system comprising a data acquisition device that measures physical quantities associated with the respective movement of the left and right feet, and a calculation device that uses the physical quantities associated with the respective movement of the left and right feet to calculate gait symmetry.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 29, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Patent number: 11909824
    Abstract: A mobile terminal detects a self-device being located at a predetermined location, and stops reception of sensing information from a module device that transmits the sensing information, if being located at the predetermined location is detected. A fixed device receives the sensing information from the module device, and transmits the sensing information to a cloud server.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 20, 2024
    Assignee: NEC CORPORATION
    Inventors: Hiroshi Kajitani, Toshinori Takemura, Kentaro Nakahara, Hannah Pokka, Itsumi Haneda, Akira Kamei, Kenichiro Fukushi, Chenhui Huang, Zhenwei Wang, Yuka Imai, Koichi Morikawa, Hiroshi Okuda, Hiroaki Nakano
  • Publication number: 20240049987
    Abstract: A gait measurement system including: a data acquisition device that measures physical quantities related to pressures of left and right feet; and a calculation device that calculates a symmetry of walking using the physical quantities related to the pressures of the left and right feet.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 15, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20240049990
    Abstract: In order to easily measure the foot angle of a pedestrian with high accuracy, the present invention provides a foot angle calculation device comprising: a posture angle calculation unit that uses an angular velocity vector of a foot to calculate the posture angle thereof; and a foot angle calculation unit that uses a foot velocity vector and the posture angle to calculate a foot angle, which is the angle formed by the velocity vector and the center line of the foot.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 15, 2024
    Applicant: NEC Corporation
    Inventors: Kenichiro FUKUSHI, Chenhui Huang, Zhenwei Wang
  • Publication number: 20230414130
    Abstract: This walking index calculation device comprises: a waveform generation unit that uses sensor data related to foot movement acquired by a sensor installed in footwear to generate a walking waveform in order to calculate the toe clearance while walking in daily life; a detection unit that detects, from the walking waveform, the timing at which the toe clearance is minimized; and a calculation unit that uses walking parameters at the timing when the toe clearance is minimized to calculate the minimum value of the toe clearance.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 28, 2023
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Fumiyuki NIHEY, Kenichiro FUKUSHI, Zhenwei WANG
  • Publication number: 20230410048
    Abstract: In the information processing device, the information acquisition means acquires project information inputted by an R&D worker. The information output means outputs the project information to a user terminal. The project application acquisition means acquires applications for a project inputted by a plurality of user terminals. The project establishment determination means determines whether or not the project is established, based on the applications for the project.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 21, 2023
    Applicant: NEC Corporation
    Inventors: Kei Shibuya, Zhenwei WANG, Kenichiro FUKUSHI, Masanori TSUJIKAWA
  • Publication number: 20230397879
    Abstract: Provided is a pelvic inclination estimation device including a communication unit that acquires feature amount data including a feature amount to be used for estimation of a pelvic inclination, the feature amount being extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data related to movement of a foot of a subject, a storage unit that stores an estimation model that outputs an estimation value related to the pelvic inclination according to an input of the feature amount included in the feature amount data, an estimation unit that inputs a feature amount included in the acquired feature amount data to the estimation model and estimate a pelvic inclination of the subject according to the estimation value output from the estimation model, and an output unit that outputs information associated to the pelvic inclination of the subject.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 14, 2023
    Applicant: NEC Corporation
    Inventors: Zhenwei WANG, Chenhui Huang, Kenichiro Fukushi, Kazuki Ihara, Fumiyuki Nihey, Hiroshi Kajitani, Yoshitaka Nozaki, Kentaro Nakahara
  • Publication number: 20230397839
    Abstract: Provided is a waist swinging estimation device including a communication unit that acquires feature amount data including a feature amount extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data regarding a movement of a foot of a subject and used for estimation of waist swinging that is an index regarding a movement of a waist, a storage unit that stores an estimation model that outputs an estimated value regarding the waist swinging according to an input of a feature amount included in the feature amount data, an estimation unit that inputs a feature amount included in the acquired feature amount data to the estimation model, and estimate waist swinging of the subject according to an estimated value regarding the waist swinging output from the estimation model, and an output unit that outputs information according to waist swinging of the subject.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 14, 2023
    Applicant: NEC Corporation
    Inventors: Zhenwei Wang, Chenhui Huang, Kazuki Ihara, Kenichiro Fukushi, Fumiyuki Hihey, Hiroshi Kajitani, Yoshitaka Nozaki, Kentaro Nakahara
  • Publication number: 20230397840
    Abstract: A detection device includes a waveform generation unit that generates a gait waveform using sensor data related to a motion of a foot, and a detection unit that detects a gait event from the gait waveform based on a condition set for each of an angle, an angular velocity, and an acceleration in a sagittal plane.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 14, 2023
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG, Fumiyuki NIHEY, Hiroshi OKUDA
  • Publication number: 20230397841
    Abstract: Provided is a harmonic index estimation device including a communication unit that acquires feature amount data including a feature amount used for estimation of a harmonic index related to smoothness of movement of a waist, the feature amount being extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data related to movement of a foot of a subject, a storage unit that stores an estimation model that outputs an estimation value related to the harmonic index, according to an input of the feature amount included in the feature amount data, an estimation unit that inputs the feature amount included in the feature amount data to the estimation model and estimate a harmonic index of the subject according to the estimation value output from the estimation model, and an output unit that outputs information associated to the harmonic index.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 14, 2023
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Zhenwei Wang, Fumiyuki Nihey