Patents by Inventor Jianfeng Xu

Jianfeng Xu 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: 20190141614
    Abstract: This application provides a Wi-Fi configuration method, a Wi-Fi mobile terminal, and a Wi-Fi device. The Wi-Fi mobile terminal constructs an information string according to obtained Wi-Fi networking parameters, adds information of the information string to a plurality of multicast packets, and sends the plurality of multicast packets to the Wi-Fi device. The Wi-Fi device parses the plurality of received multicast packets according to a method for carrying the information string by the multicast packets, decapsulates the information string according to a method for constructing the information string, to obtain the Wi-Fi networking parameters, and further sends a connection request to a wireless router according to the obtained Wi-Fi networking parameters, to establish a connection to the wireless router. An AP to which the Wi-Fi mobile terminal is connected does not need to be switched, so that initial networking configuration of the Wi-Fi device can be quickly completed.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 9, 2019
    Inventors: Shunbao WANG, Jianfeng XU, Chen ZHANG
  • Patent number: 10188357
    Abstract: A support unit (200), a support device (100) and an emission tomography device using the support device (100) are provided. The support unit (200) comprises: a support body (210), in which an accommodation space (220) that penetrates through the support body is provided, comprising multiple support positions (230A, 230B) that are distributed along a circumferential direction of the accommodation space (220); and multiple fastening means (240A, 240B), connected to at least some of the multiple support positions. At least some of the multiple fastening means (240A, 240B) can move between a contraction position and an extension position along a radial direction of the accommodation space (220). The fastening means (240A, 240B) are used to fasten detectors of the emission tomography device.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 29, 2019
    Assignee: DONGGUAN SONGSHAN LAKE SOUTHERN MEDICAL UNIVERSITY SCI. & TECH. PARK CO., LTD.
    Inventors: Han Shi, Jianfeng Xu, Qiyu Peng
  • Publication number: 20180292550
    Abstract: An apparatus, device and method for measuring a breakdown voltage are disclosed. The apparatus comprises a controlled voltage source (122), a current detection circuit (124), and a processing circuit (126). An output end of the controlled voltage source (122) is connected to an input end of a sensor unit (110). The controlled voltage source (122) is used for providing a series of test bias voltages for the sensor unit (110). An input end of the current detection circuit (124) is connected to an output end of the sensor unit (110). The current detection circuit (124) is used for detecting a current signal output by the sensor unit (110) and generating a corresponding detection signal. An input end of the processing circuit (126) is connected to an output end of the current detection circuit (124). An output end of the processing circuit (126) is connected to an input end of the controlled voltage source (122).
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Applicant: ZHONGPAI S&T (SHENZHEN) CO., LTD
    Inventors: Jianfeng Xu, Zhixiang Zhao, Qiu Huang, Zheng Gong, Qiyu Peng
  • Publication number: 20180292549
    Abstract: An apparatus, device and method for measuring a gain of a sensor are disclosed. The apparatus comprises a current detection circuit (122) and a processing circuit (124). An input end of the current detection circuit (122) is used for connecting to an output end of a sensor unit (110). The current detection circuit (122) is used for detecting a current signal output by the sensor unit and generating a corresponding detection signal. An input end of the processing circuit (124) is connected to an output end of the current detection circuit (122). The processing circuit (124) is used for calculating energy of dark events occurring in the sensor unit (110) according to the detection signal, generating an energy spectrogram of the dark event, and calculating a gain of the sensor unit (110) based on the energy spectrogram.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Applicant: ZHONGPAI S&T (SHENZHEN) CO., LTD
    Inventors: Jianfeng Xu, Zhixiang Zhao, Qiu Huang, Zheng Gong, Qiyu Peng
  • Publication number: 20180260318
    Abstract: Described are a read-write control method for memory, and a corresponding memory and server. The method comprises: combining data to be written with each other into a data block, writing the data block in a free block of the memory, and recording an identifier and a corresponding index of the data in the memory, the index of the data being an offset indicating a memory location of the data in the memory; and reading the data from the memory location of the data in the memory according to an identifier and an index of the data to be read.
    Type: Application
    Filed: May 8, 2018
    Publication date: September 13, 2018
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jianfeng Xu, Yue Wu, Chaoyu Zhong, Ming Xie, Wenzheng Li
  • Publication number: 20180208994
    Abstract: The present invention provides a method of identifying a subject as having an increased risk of developing prostate cancer, comprising detecting in the subject the presence of various polymorphisms associated with an increased risk of developing prostate cancer.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 26, 2018
    Inventors: Jianfeng Xu, S. Lilly Zheng, Henrik Gronberg, William B. Isaacs
  • Patent number: 10021500
    Abstract: An audio file playing method and an apparatus are disclosed and are used to: when an audio file is played, expand a quantity of audio channel signals in the audio file and improve a playing effect of the audio file. The method is as follows: after the audio file is obtained, determining, whether the audio file includes an audio channel signal that can be played by the mobile device; if the audio file includes the audio channel signal that can be played by the mobile device, directly playing the audio channel signal. Therefore, when multiple mobile devices are used to play a same audio file, the mobile devices can avoid performing a same operation, thereby increasing a quantity of audio channels of the audio file, expanding a sound field of the audio file, and improving a playing effect of the audio file.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: July 10, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jianfeng Xu, Xiangjun Wang, Qing Zhang
  • Publication number: 20180187265
    Abstract: The present invention provides methods of assessing an individual subject's risk of developing prostate cancer, comprising: a) analyzing a nucleic acid sample obtained from the subject and determining a genotype for the subject at a plurality of biallelic polymorphic loci, wherein each of said plurality has an associated allele and an unassociated allele, wherein the genotype is selected from the group consisting of homozygous for the associated allele, heterozygous, and homozygous for the unassociated allele; and b) calculating a cumulative relative risk (CRR) for the subject based on the genotype determined in step (a). A CRR of greater than 1.00 identifies a subject as having an increased risk of developing prostate cancer and also can identify a subject who is a candidate for early PSA screening, prostate biopsy and/or chemoprevention.
    Type: Application
    Filed: August 11, 2017
    Publication date: July 5, 2018
    Inventors: Jianfeng Xu, Siqun Lilly Zheng, Jielin Sun, Andrew Karim Kader
  • Publication number: 20180187256
    Abstract: The present disclosure discloses a method for controlling a base sequence determination, a base sequence determination system, and a control device. The base sequence determination system includes a fluid device and an optical device, a reaction device includes a first component and a second component, and a repeated executable unit included in the base sequence determination is defined as: a second biochemical reaction—a first biochemical reaction—photographing. The method includes, after initiation steps are completed, using the fluid device to perform the second biochemical reaction and the first biochemical reaction of the sample on the first component, while using the optical device to photograph the sample on the second component. The initial steps include: a. using the fluid device to perform the first biochemical reaction of the sample on the first component, b. using the optical device to photograph the sample on the first component after the first biochemical reaction, and c.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 5, 2018
    Inventors: Jianfeng Xu, Ruitao Sun, Zefei Jiang, Zhiliang Zhou, Qin Yan
  • Patent number: 9996503
    Abstract: A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an FFT is performed; an in-place fixed rotate compensation is performed on the FFT signal and then an post-rotated is performed; a quantized signal is obtained and then wrote into a bitstream for transmitting or storing.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: June 12, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Deming Zhang, Haiting Li, Anisse Taleb, Jianfeng Xu
  • Patent number: 9990276
    Abstract: Described are a read-write control method for memory, and a corresponding memory and server. The method comprises: dividing a storage resource of the memory by taking a block as a unit; to write data, combining the data to be written into a data block, writing the data block in a free segment of the memory, and recording an identifier and a corresponding index of the data, the index of the written data is an offset indicating a memory location of the data in the memory; to read data, reading the data from the offset of the memory according to an identifier and a index of the data to be read. When read-write control is performed on the memory, the number of the times that the I/O operation is performed on the memory is reduced during data writing, thereby improving the efficiency of the write operation on the memory.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: June 5, 2018
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Jianfeng Xu, Yue Wu, Chaoyu Zhong, Ming Xie, Wenzheng Li
  • Publication number: 20170364479
    Abstract: A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an FFT is performed; an in-place fixed rotate compensation is performed on the FFT signal and then an post-rotated is performed; a quantized signal is obtained and then wrote into a bitstream for transmitting or storing.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Deming Zhang, Haiting Li, Anisse Taleb, Jianfeng Xu
  • Publication number: 20170303871
    Abstract: A support unit (200), a support device (100) and an emission tomography device using the support device (100) are provided. The support unit (200) comprises: a support body (210), in which an accommodation space (220) that penetrates through the support body is provided, comprising multiple support positions (230A, 230B) that are distributed along a circumferential direction of the accommodation space (220); and multiple fastening means (240A, 240B), connected to at least some of the multiple support positions. At least some of the multiple fastening means (240A, 240B) can move between a contraction position and an extension position along a radial direction of the accommodation space (220). The fastening means (240A, 240B) are used to fasten detectors of the emission tomography device.
    Type: Application
    Filed: November 6, 2015
    Publication date: October 26, 2017
    Applicant: DONGGUAN SONGSHAN LAKE SOUTHERN MEDICAL UNIVERSITY SCI. & TECH. PARK CO., LTD.
    Inventors: Han Shi, Jianfeng Xu, Qiyu Peng
  • Patent number: 9800453
    Abstract: A method and apparatus for providing signal processing coefficients for processing an input signal at a predetermined signal processing sampling rate, wherein the input signal is received at an input signal sampling rate, the method comprising the steps of computing a correlation or covariance function based on the received input signal at the input signal sampling rate to provide correlation or covariance coefficients at the input signal sampling rate, re-sampling the computed correlation or covariance coefficients having the input signal sampling rate to provide correlation or covariance coefficients at the predetermined signal processing sampling rate, and calculating the signal processing coefficients based on the correlation or covariance coefficients at the predetermined signal processing sampling rate.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: October 24, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Anisse Taleb, Jianfeng Xu, David Virette
  • Patent number: 9792257
    Abstract: An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a·W4L2p+1, p=0, . . . , L/2?1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b·W4L2q+1, q=0, . . . , L/2?1, and b is a constant; and obtaining output data.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: October 17, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Deming Zhang, Haiting Li, Anisse Taleb, Jianfeng Xu
  • Patent number: 9732389
    Abstract: The present invention provides methods of assessing an individual subject's risk of developing prostate cancer, comprising: a) analyzing a nucleic acid sample obtained from the subject and determining a genotype for the subject at a plurality of biallelic polymorphic loci, wherein each of said plurality has an associated allele and an unassociated allele, wherein the genotype is selected from the group consisting of homozygous for the associated allele, heterozygous, and homozygous for the unassociated allele; and b) calculating a cumulative relative risk (CRR) for the subject based on the genotype determined in step (a). A CRR of greater than 1.00 identifies a subject as having an increased risk of developing prostate cancer and also can identify a subject who is a candidate for early PSA screening, prostate biopsy and/or chemoprevention.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 15, 2017
    Assignee: Wake Forest University Health Sciences
    Inventors: Jianfeng Xu, Siqun Lilly Zheng, Jielin Sun, Andrew Karim Kader
  • Publication number: 20170175206
    Abstract: The present invention provides a method of identifying a subject as having an increased risk of having or developing aggressive prostate cancer, comprising detecting in the subject the presence of various polymorphisms associated with an increased risk of having or developing aggressive prostate cancer.
    Type: Application
    Filed: December 30, 2016
    Publication date: June 22, 2017
    Inventors: Jianfeng Xu, William B. Isaacs, Henrik Grönberg
  • Publication number: 20170152568
    Abstract: The present invention provides a method of identifying a subject for whom a prostate biopsy is indicated, comprising: a) determining, from a nucleic acid sample obtained from the subject, a genotype for the subject at a plurality of biallelic polymorphic loci, wherein each of said plurality has an associated allele and an unassociated allele, wherein the genotype is selected from the group consisting of homozygous for the associated allele, heterozygous, and homozygous for the unassociated allele; b) calculating a genetic risk score (GRS) for the subject based on the genotype determined in step (a); and c) analyzing the GRS of the subject in combination with a prostate specific antigen (PSA) level of the subject to identify a prostate cancer detection rate for the subject, whereby a prostate cancer detection rate of greater than or equal to a reference value identifies the subject as a subject for whom a prostate biopsy is indicated.
    Type: Application
    Filed: July 5, 2016
    Publication date: June 1, 2017
    Inventor: Jianfeng Xu
  • Publication number: 20170137559
    Abstract: The present invention relates to a transparent and abrasion resistant polyurethane elastomer prepared from a polyurethane composition under a mold pressure of 1-5 ton, wherein the polyurethane composition comprises: a) an isocyanate component comprising one or more organic polyisocyanates; b) an isocyanate-reactive component comprising: b1) polyester polyol, polyether polyol or a combination thereof; b2) one or more aliphatic diols having a molecular weight of less than 200 and an amount of 0.1-3.5 wt. %, based on 100 wt. % by weight of the isocyanate-reactive component; c) a polydiene, which is prepared by homopolymerization or copolymerization of aliphatic diene having 4-10 carbon atoms.
    Type: Application
    Filed: March 26, 2015
    Publication date: May 18, 2017
    Inventors: John Zhang, Jianfeng Xu, Zhong Cao
  • Publication number: 20170075860
    Abstract: An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a·W4L2p+1, p=0, . . . , L/2?1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b·W4L2q+1, q=0, . . . , L/2?1, and b is a constant; and obtaining output data.
    Type: Application
    Filed: November 7, 2016
    Publication date: March 16, 2017
    Inventors: Deming Zhang, Haiting Li, Anisse Taleb, Jianfeng Xu