Patents by Inventor Jian Cheng

Jian Cheng 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: 20200267063
    Abstract: A sampling frequency recommendation method, apparatus, and device, and a storage medium relating to the field of communications technologies are disclosed.
    Type: Application
    Filed: May 7, 2020
    Publication date: August 20, 2020
    Inventors: Haonan YE, Liang ZHANG, Jian CHENG, Jun WU, Li XUE
  • Publication number: 20200258427
    Abstract: The present invention discloses a method and a system for automatically generating a hole location map for golf course, relating to the field of the automatic measurement technology. The method includes the following steps: acquiring longitude and latitude data of all fairway center points or green center points, longitude and latitude data of all green front edge points, and longitude and latitude data of all current-date hole position points; calculating hole position data of respective current-date hole position points according to the longitude and latitude data of the current-date hole position point, the longitude and latitude data of the fairway center point or the green center point corresponding to the current-date hole position point and the longitude and latitude data of the green front edge point; and automatically generating a current-date hole location map for golf course according to the hole position data of the respective current-date hole position points.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 13, 2020
    Inventors: JIANJIA PAN, JIAN CHENG, XIAOFENG CHEN
  • Patent number: 10732049
    Abstract: An electronic device includes an outer case, a circuit substrate, a thermopile sensor chip, a filter structure, and a waterproof structure. The outer case has an opening. The circuit substrate is disposed inside the outer case. The thermopile sensor chip is disposed on the circuit substrate. The filter structure is disposed above the thermopile sensor chip. The waterproof structure is surroundingly connected between the filter structure and the outer case for sealing up the opening of the outer case, wherein the waterproof structure has a through hole for exposing the filter structure and communicated with the opening of the outer case.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 4, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ming-Han Tsai, Chih-Ming Sun, Jian-Cheng Liao
  • Publication number: 20200242226
    Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: REN-HAU GU, CHIH-HSIN LIN, TZUNG-MIN SU, YUNG-CHANG LIN, JIAN-CHENG LIAO, CHUN-CHIH CHEN
  • Patent number: 10698996
    Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 30, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chih-Hsin Lin, Tzung-Min Su, Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
  • Publication number: 20200169880
    Abstract: The network service system includes a transmission controller and an authentication server. The transmission controller determines whether a service request belongs to a service of a proprietary network registered with the mobile edge computing platform and comprises an authentication request. The service request is from an electronic device. When the transmission controller determines that the service request belongs to a service of the proprietary network and comprises an authentication request, the authentication server executes an authentication mechanism according to packet information that corresponds to the service request, and the authentication mechanism triggers a permission server to confirm the identity information and permission information of the electronic device.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 28, 2020
    Inventors: Kuo-Wei WEN, Jian-Cheng CHEN, Jian-Hao CHEN
  • Publication number: 20200146749
    Abstract: Embodiments of the present application provide a radiofrequency ablation catheter and a radiofrequency ablation system. The radiofrequency ablation catheter includes: a catheter body; a ring electrode, annularly provided at a head of the catheter body; a location sensor, provided in the catheter body; and an ablation needle, provided in the catheter body and capable of moving forward or backward. The ablation needle, when applied, pushes out from the head of the catheter body and penetrates into a lesion tissue. The embodiments of the disclosure enable an accurate location of the lesion position and the puncture into lesion for performing radiofrequency ablation therapy, so as to achieve the targeted precise ablation therapy and reduce the damage to normal tissues.
    Type: Application
    Filed: August 17, 2017
    Publication date: May 14, 2020
    Applicant: CHANGZHOU LUNGHEALTH MEDTECH COMPANY LIMITED
    Inventors: Jian CHENG, Hongyi LIU, Jiajun MA
  • Publication number: 20200144483
    Abstract: A semiconductor device includes a substrate having an array region defined thereon, a ring of magnetic tunneling junction (MTJ) region surrounding the array region, wherein the ring of MTJ region comprises a first MTJ, and metal interconnect patterns overlapping part of the ring of MTJ region. Preferably, each of the metal interconnect patterns includes a first metal interconnection connected to the first MTJ directly.
    Type: Application
    Filed: December 31, 2019
    Publication date: May 7, 2020
    Inventors: Chung-Liang Chu, Jian-Cheng Chen, Yu-Ping Wang, Yu-Ruei Chen
  • Publication number: 20200144485
    Abstract: A semiconductor device includes a substrate having an array region defined thereon, a ring of magnetic tunneling junction (MTJ) region surrounding the array region, a gap between the array region and the ring of MTJ region, and metal interconnect patterns overlapping part of the ring of MTJ region. Preferably, the ring of MTJ region comprises an octagon and the ring of MTJ region includes a first MTJ region and a second MTJ region extending along a first direction, a third MTJ region and a fourth MTJ region extending along a second direction, a fifth MTJ region and a sixth MTJ region extending along a third direction, and a seventh MTJ region and an eighth MTJ region extending along a fourth direction.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 7, 2020
    Inventors: Chung-Liang Chu, Jian-Cheng Chen, Yu-Ping Wang, Yu-Ruei Chen
  • Publication number: 20200136944
    Abstract: A method for implementing transmission performance detection includes: after successively receiving data packets whose sequence numbers are N1 and N2, determining, by a detection apparatus, that N2 is greater than N1 and that N1 and N2 are inconsecutive; after receiving the data packet whose sequence number is N2, receiving a data packet whose sequence number is M1; and when determining N1<M1<N2 and T2?T1>=RTT, determining that the data packet whose sequence number is M1 is a retransmitted packet corresponding to an upstream packet loss, where T1 is a time for receiving the data packet whose sequence number is N2, T2 is a time for receiving the data packet whose sequence number is M1.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Jian Cheng, Yanfang Zhang, Yan Bai, Liang Zhang
  • Patent number: 10610132
    Abstract: Examples described herein include a medical device system comprising an accelerometer circuitry configured to output a signal indicative of variations in accelerations along a single axis of movement of patient; and processing circuitry configured to receive the output signal from the accelerometer, and to rectify the output signal to generate a rectified signal, wherein rectification of the output signal comprises generating a rectified value for each of a plurality of moving windows imposed over the output signal, wherein generating the rectification value for each of the plurality of moving windows comprises determining a current value of the output signal for the window, determining a maximum value for a portion of the output signal enclosed by the window, and subtracting the current value from the maximum value; and analyze the rectified signal to detect the occurrence of a step taken by a patient based on the rectified signal.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 7, 2020
    Assignee: Medtronic, Inc.
    Inventors: Bruce D. Gunderson, Ya-Jian Cheng
  • Publication number: 20200098338
    Abstract: A display apparatus includes a pixel array, an optical modulator, a controller, and at least one memory device storing a frame memory. The optical modulator modulates the light emitted from the pixel array to corresponding angles. The controller generates images of a scene with different lighting profiles corresponding to different viewing angles according to information stored in the frame memory. The frame memory stores color information and material information of objects in the scene. The display apparatus displays the images through the first pixel array at the same time.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 26, 2020
    Inventors: Naoki Sumi, Keiko Edo, Jian-Cheng Chen, Toshihiko Araki
  • Publication number: 20200099981
    Abstract: A fault detection method, a monitoring device, and a network device for accurately performing fault detection on a video service are provided. The method includes: obtaining a video quality parameter of a monitored video stream, where the video quality parameter is determined according to a packet loss recovery method of the monitored video stream, the video quality parameter includes an effective packet loss factor, and the effective packet loss factor is used to indicate effectiveness of network packet loss recovery performed by using the packet loss recovery method of the monitored video stream; and performing fault detection based on the video quality parameter of the monitored video stream.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Yanfang Zhang, Jian Cheng, Yan Bai, Liang Zhang
  • Publication number: 20200098440
    Abstract: Various embodiments of the present application are directed towards a one-time-programmable (OTP) implementation using magnetic junctions. In some embodiments, an array comprises multiple magnetic junctions in multiple columns and multiple rows, and the magnetic junctions comprise a first magnetic junction and a second magnetic junction. The first and second magnetic junctions comprise individual top ferromagnetic elements and individual bottom ferromagnetic elements, and further comprise individual barrier elements between the top and bottom ferromagnetic elements. A first barrier element of the first magnetic junction electrically separates first top and bottom ferromagnetic elements of the first magnetic junction. A second barrier element of the second magnetic junction has undergone breakdown, such that it has defects defining a leakage path between second top and bottom ferromagnetic elements of the second magnetic junction.
    Type: Application
    Filed: May 13, 2019
    Publication date: March 26, 2020
    Inventors: Harry-Hak-Lay Chuang, Tien-Wei Chiang, Wen-Chun You, Yi-Chieh Chiu, Yu-Lin Chen, Jian-Cheng Huang, Chang-Hung Chen
  • Patent number: 10591325
    Abstract: A flow feature detection method is described. The method includes storing a plurality of points at locations over a region in which vortex detection is to be performed. A value for each of a plurality of fluid flow parameters, such as velocity, pressure and density, is determined at each point. The points are grouped as being contained in either a flow feature portion or normal flow portion of the region according to one or more statistical distribution for the fluid flow parameters. A point is identified as being indicative of the flow feature by identifying multiple further points at least partially surrounding the point, and determining a plane in which the flow feature is identifiable based upon the relative values of the one or more fluid flow parameter for the further points. The method may be used to detect vortices and to identify a two-dimensional plane representative of a vortex.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 17, 2020
    Assignee: ROLLS-ROYCE plc
    Inventors: Yiping Ke, Jian Cheng Wong, Chi-Keong Goh, Kee Khoon Lee
  • Publication number: 20200067629
    Abstract: A video quality assessment method and device are provided. The video quality assessment method includes: obtaining a to-be-assessed video, where the to-be-assessed video includes a forward error correction (FEC) redundancy data packet; when a quantity of lost data packets of a first source block in the to-be-assessed video is less than or equal to a quantity of FEC redundancy data packets of the first source block, generating a first summary packet for a non-lost data packet of the first source block, and generating a second summary packet for a lost data packet of the first source block; and calculating a mean opinion score of video (MOSV) of the to-be-assessed video based on the first summary packet and the second summary packet. The MOSV calculated according to the method is more consistent with real video experience of a user, so accuracy of video quality assessment can be improved.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 27, 2020
    Inventors: Jie XIONG, Yanfang ZHANG, Ligang FENG, Jian CHENG
  • Patent number: 10566520
    Abstract: A semiconductor device includes a substrate having an array region defined thereon, a ring of magnetic tunneling junction (MTJ) region surrounding the array region, a gap between the array region and the ring of MTJ region, and metal interconnect patterns overlapping part of the ring of MTJ region. Preferably, the ring of MTJ region further includes a first MTJ region and a second MTJ region extending along a first direction and a third MTJ region and a fourth MTJ region extending along a second direction.
    Type: Grant
    Filed: July 8, 2018
    Date of Patent: February 18, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chung-Liang Chu, Jian-Cheng Chen, Yu-Ping Wang, Yu-Ruei Chen
  • Patent number: D883248
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: May 5, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou
  • Patent number: D885360
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 26, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou
  • Patent number: D886075
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 2, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou