Patents by Inventor Jun Tian

Jun Tian 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: 11564612
    Abstract: An automatic recognition and classification method for electrocardiogram heartbeat based on artificial intelligence, comprising: processing a received original electrocardiogram digital signal to obtain heartbeat time sequence data and lead heartbeat data; cutting the lead heartbeat data according to the heartbeat time sequence data to generate lead heartbeat analysis data; performing data combination on the lead heartbeat analysis data to obtain a one-dimensional heartbeat analysis array; performing data dimension amplification and conversion according to the one-dimensional heartbeat analysis array to obtain four-dimensional tensor data; and inputting the four-dimensional tensor data to a trained LepuEcgCatNet heartbeat classification model, to obtain heartbeat classification information.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 31, 2023
    Assignee: Shanghai Lepu CloudMed Co., Ltd
    Inventors: Chuanyan Hu, Xue Zhang, Liang Tian, Tao Liu, Jun Cao, Chang Liu
  • Publication number: 20230006563
    Abstract: A power supply device includes a transformer, a first rectifier, a first voltage conversion module, a second voltage conversion module, and a control unit. The first rectifier, connected to a primary winding of the transformer, converts a received alternating-current voltage to a first direct-current voltage. The first voltage conversion module is connected to the first secondary winding of the transformer. The second voltage conversion module is connected to the second secondary winding of the transformer. The control unit, connected to the first voltage conversion module and second voltage conversion module, controls the first voltage conversion module or second voltage conversion module to adjust an output voltage or an output current of the power supply device.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventors: Senlong JIANG, Jun ZHANG, Chen TIAN, Jialiang ZHANG, Chih-wei CHIU
  • Publication number: 20230007425
    Abstract: Aspects of the disclosure provide methods and apparatuses for audio processing. In some examples, an apparatus for media processing includes processing circuitry. The processing circuitry receive audio inputs associated with a layered description for a space of interest in an audio scene. The space of interest includes a plurality of subspaces. The layered description includes a first layer and a second layer. The first layer has a common node with a first value that is a common attribute value of two or more subspaces in the plurality of subspaces. The second layer has individual nodes respectively associated with each of the plurality of subspaces. The processing circuitry determines the plurality of subspaces of the space of interest based on the layered description, and renders an audio output based on the audio inputs in response to a location of a subject of the audio scene being in the space of interest.
    Type: Application
    Filed: May 23, 2022
    Publication date: January 5, 2023
    Applicant: Tencent America LLC
    Inventors: Jun TIAN, Xiaozhong XU, Shan LIU
  • Publication number: 20230006462
    Abstract: A power supply device includes a transformer, a first rectifier, a voltage conversion module, and a control unit. The first rectifier is connected to a primary winding of the transformer, converts a received alternating-current voltage to a first direct-current voltage. The transformer is configured to convert the first direct-current voltage to a second direct-current voltage. The voltage conversion module is connected to the secondary winding of the transformer and configured to convert the second direct-current voltage to output a third direct-current voltage. The control unit, connected to the voltage conversion module, controls the voltage conversion module to adjust an output voltage or an output current of the power supply device.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD
    Inventors: Senlong JIANG, Jialiang ZHANG, Chen TIAN, Chih-wei CHIU, Jun ZHANG
  • Publication number: 20230002800
    Abstract: The present invention relates to new methods and processes for culturing mammalian cells with the addition of phenolic antioxidants. Performance of the cell culturing methods and processes in their various aspects result in a higher viable cell density and higher protein titer.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 5, 2023
    Inventors: JUN TIAN, Jianlin Xu, Qin He
  • Publication number: 20230007349
    Abstract: Aspects of the disclosure provide methods and apparatuses for subjective evaluation. In some examples, processing circuitry receives scores graded by a subject to a media presentation. The scores by the subject includes a plurality of self comparison scores that are graded to self comparison tests in the media presentation. The processing circuitry applies a first rule and a second rule to the plurality of self comparison scores. The first rule requires a first subset of the plurality of self comparison scores in a first range. The second rule requires a second subset of the plurality of self comparison scores in a second range to limit at least an outlier to the first rule according to the second range. The processing circuitry determines that the scores by the subject are qualified for the subjective evaluation in response to the first rule and the second rule being satisfied.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 5, 2023
    Applicant: Tencent America LLC
    Inventors: Jun TIAN, Xiaozhong XU, Shan LIU
  • Publication number: 20230006557
    Abstract: Provided by the present disclosure are a power supply circuit and a charging device. The power supply circuit comprises a pulse transformer circuit and a first power supply conversion circuit. The pulse transformer circuit comprises a pulse transformer and a switch control circuit; a primary winding of the pulse transformer is connected to a power supply and is connected to the switch control circuit, and the switch control circuit is used to modulate the voltage on the primary winding into a pulse voltage; and the input terminal of the first power supply conversion circuit is connected to a secondary winding of the pulse transformer, and is used to transform the voltage on the secondary winding of the pulse transformer into a first preset voltage range when the voltage outputted by the secondary winding exceeds the first preset voltage range, and then output the voltage.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Senlong JIANG, Chih-wei CHIU, Jialiang ZHANG, Chen TIAN, Jun ZHANG
  • Publication number: 20230006461
    Abstract: A power supply circuit includes a rectifier circuit, configured to convert an alternating current inputted to the rectifier circuit into a direct current; a primary power supply conversion circuit having an input end connected with an output end of the rectifier circuit, configured to convert an input voltage of the primary power supply conversion circuit which is out of a preset voltage range into an output voltage of the primary power supply conversion circuit within the preset voltage range; and a secondary power supply conversion circuit having an input end connected with an output end of the primary power supply conversion circuit, configured to convert a direct current voltage outputted by the primary power supply conversion circuit into a target direct current voltage. A lower limit of the preset voltage range is greater than a minimum working voltage of the secondary power supply conversion circuit.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP, LTD.
    Inventors: Senlong JIANG, Chih-Wei CHIU, Jialiang ZHANG, Chen TIAN, Jun ZHANG
  • Publication number: 20230006460
    Abstract: A power supply conversion circuit and a charging device are provided. The power supply conversion circuit includes: a first voltage conversion circuit that converts a voltage when the voltage exceeds a preset voltage range and outputs the converted voltage; a post-stage voltage conversion circuit that receives the converted voltage and converts the converted voltage into a target voltage for outputting; and a signal feedback circuit that feeds back a signal to the first voltage conversion circuit according to the target voltage, so that the first voltage conversion circuit is synchronized with the post-stage voltage conversion circuit.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Inventors: Senlong JIANG, Chih-wei CHIU, Jialiang ZHANG, Chen TIAN, Jun ZHANG
  • Publication number: 20230006558
    Abstract: Disclosed in the embodiments of the present application is a power conversion circuit, comprising a direct current conversion circuit, a pulse width control circuit, and a transformer. The transformer comprises a primary transformer coil and a secondary transformer coil. The direct current conversion circuit is connected to the primary transformer coil, and is used for adjusting an initial voltage inputted to the direct current conversion circuit to a target voltage. The pulse width control circuit is connected to the primary transformer coil, and is used for generating a pulse square wave on the basis of the target voltage. The primary transformer coil is coupled with the secondary transformer coil. The primary transformer coil is used for generating an electromagnetic filed according to the pulse square wave, and coupling the electromagnetic field to the secondary transformer coil so that the secondary transformer coil generates an output voltage.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventors: Senlong Jiang, Chih-wei Chiu, Jialiang Zhang, Chen Tian, Jun Zhang
  • Publication number: 20230006562
    Abstract: Provided are a power supply conversion circuit and a power supply conversion method. The power supply conversion circuit includes a first direct-current conversion circuit connected to an electric load, a secondary transformer coil connected to the first direct-current conversion circuit, and a primary transformer coil coupled to the secondary transformer coil. The primary transformer coil is configured to generate, based on an initial voltage inputted to the primary transformer coil, an electromagnetic field and couple the electromagnetic field to the secondary transformer coil. The secondary transformer coil is configured to generate an induced current by virtue of the electromagnetic field, generate a secondary output voltage based on the induced current, and transmit the secondary output voltage to the first direct-current conversion circuit.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventors: Senlong JIANG, Chih-Wei CHIU, Chen TIAN, Jun ZHANG, Jialiang ZHANG
  • Patent number: 11535721
    Abstract: A film including: an organic polymeric substrate having a first major surface and a second major surface; an optional acrylic hardcoat layer disposed on the first major surface of the substrate; a siliceous primer layer disposed on the organic polymeric substrate or on the optional acrylic hardcoat layer, wherein the siliceous primer layer includes composite particles including an organic polymer portion and a siliceous portion; and a superhydrophilic surface layer disposed on the siliceous primer layer, wherein the superhydrophilic surface layer includes hydrophilic-functional groups.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: December 27, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Xue Tian, Jun Ma, Garry W. Lachmansingh
  • Publication number: 20220401005
    Abstract: Disclosed are a heartbeat data classification method and device based on a point R.
    Type: Application
    Filed: December 9, 2020
    Publication date: December 22, 2022
    Inventors: Biying Zhang, Liang Tian, Jun Cao
  • Publication number: 20220404766
    Abstract: A holographic storage optical system includes a storage medium, a recording unit, an imaging unit and a servo unit. The recording unit comprises a movable Fourier lens, by which the positions and irradiation angles of a signal light spot and a reference light spot are adjusted. The servo unit comprises a calibration lens for adjusting the positions of a servo light spot in the horizontal and vertical directions so that the servo light spot is located at an optimal position relative to signal light beam and reference light beam. The beam calibrating method comprises (1) before recording a data hologram, burning a calibration hologram at a calibration holographic positioning mark on an optical track of a storage medium; (2) before reproducing the data hologram, using the calibration hologram to optimize the signal-to-noise ratio of the hologram reproduced by adjusting the calibration lens and the Fourier lens.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Inventors: Dejiao HU, Yicheng LIU, Jun TIAN
  • Publication number: 20220404767
    Abstract: A transmission-type holographic optical storage medium includes a first substrate, a second substrate, a recording layer and a dichroic layer. The recording layer is used for recording a hologram with data information. One side of the second substrate facing the recording layer is engraved with a concave-convex structure for a servo light beam to position a recording/reading position and achieve a servo track locking function. The dichroic layer can reflect the servo light beam and transmit recording/reading light. The storage medium according to the present invention is less susceptible to influence of external environment and is more stable compared with a conventional reflection-type storage medium.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Inventors: Dejiao HU, Yicheng LIU, Jun TIAN
  • Publication number: 20220407988
    Abstract: The present disclosure relates to devices, apparatus and methods of improving the accuracy of an image-based assay. One aspect of the present invention is to sandwich a sample between two plates and add reference marks in the sample areas of the plates, with at least one of the geometric and/optical properties of the reference marks being predetermined and known, and taking images of the sample with the reference marks, and applying a machine learning model in the analysis of the image-based assay.
    Type: Application
    Filed: August 26, 2022
    Publication date: December 22, 2022
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi, Jun Tian, Wei Dong
  • Publication number: 20220398250
    Abstract: An embodiment includes deriving usage data associated with records of a database by monitoring requests to perform read operations on the records of the database. The embodiment generates record correlation data representative of correlations between respective groups of records of the database by parsing the usage data associated with the records of the database. The embodiment stores a plurality of records received as respective write requests during a first time interval in an intermediate storage medium. The embodiment identifies a correlation in the record correlation data between a first record of the plurality of records and a second record of the plurality of records. The embodiment selects, responsive to identifying the correlation, a first location in the database for writing the first record and a second location in the database for writing the second record based on a proximity of the first location to the second location.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 15, 2022
    Applicant: International Business Machines Corporation
    Inventors: Guang Han Sui, Peng Hui Jiang, Jia Tian Zhong, Jun Su
  • Publication number: 20220396776
    Abstract: In accordance with the present invention, CHO cells expressing a recombinant polypeptide of interest are grown in media where the amino acids, vitamins, phosphate, lipids and/or antioxidant optimization is utilized to manipulate and/or control the protein quality attributes of the polypeptides. Polypeptides expressed in accordance with the present invention may be advantageously used in the preparation of pharmaceutical compositions.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 15, 2022
    Applicant: BRISTOL-MYERS SQUIBB COMPANY
    Inventor: Jun TIAN
  • Publication number: 20220391167
    Abstract: Aspects of the disclosure provide methods and apparatuses (e.g., client devices and server devices) for audio processing. In some examples, a client device includes processing circuitry. The processing circuitry transmits, to a server device, a selection signal indicative of an audio encoding configuration for encoding audio content in an audio input. The processing circuitry receives, from the server device, an encoded bitstream in response to the transmitting of the selection signal. The encoded bitstream includes the audio content that is encoded according to the audio encoding configuration. The processing circuitry renders audio signals based on the encoded bitstream.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 8, 2022
    Applicant: Tencent America LLC
    Inventors: Shan LIU, Jun TIAN, Xiaozhong XU
  • Publication number: 20220388157
    Abstract: A desktop horizontal joint robot, including: a lift apparatus and a fixation apparatus. The lift apparatus includes: a base, a casing supported on the base, a slider seat liftably arranged within the casing, and a lift driving mechanism configured to move the slider seat. The fixation apparatus includes: a fixation seat in fixed connection with the slider seat, a first rotational shaft rotatably supported at the fixation seat, and a first shaft driving assembly configured to rotate the first rotational shaft. An optical length encoder is arranged within the casing and configured to detect a linear displacement of the slider seat. The fixation apparatus further include a first optical angle encoder configured to detect a rotation angle of the first rotational shaft. The desktop horizontal joint robot features non-wear, high reliability, and long service life.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 8, 2022
    Inventors: JUN TIAN, YAOJUN LIU, HAO LIU