Patents by Inventor Lei Ding

Lei Ding 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: 20230003880
    Abstract: Ultrasonic audio processing circuitry and a method useful in ultrasonic presence detection. An ultrasonic burst generator produces an ultrasonic burst signal at one or more ultrasonic frequencies, and an equalizer equalizes that ultrasonic burst signal according to frequency response characteristics of the speaker and microphone at those ultrasonic frequencies. Driver circuitry drives a speaker with the ultrasonic burst signal, which may be combined with an audible audio signal. An ultrasonic separation filter separates an ultrasonic portion from a signal received at a microphone, and processing circuitry is provided to determine a delay time of an echo corresponding to the ultrasonic burst signal in that separated ultrasonic portion of the received signal. In another aspect, the equalizer equalizes an ultrasonic portion of the signal received at a microphone, according to frequency response characteristics of the speaker and microphone at the ultrasonic frequencies of the burst.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Inventors: Lei Ding, Srinath Mathur Ramaswamy, Brian Burk, Baher Haroun
  • Patent number: 11507854
    Abstract: A method and an apparatus for recognizing an intention, and a non-transitory computer-readable recording medium are provided.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: November 22, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Liang Liang, Lei Ding, Bin Dong, Shanshan Jiang, Yixuan Tong
  • Publication number: 20220347810
    Abstract: An intelligent plate parts machining production line combining universal equipment and special equipment. Four special machining tools are located on first to fourth stations, respectively, and a universal machining tool is located on a fifth station. The stations are sequential from an automatic feeding device. Truss conveying devices are behind the first to fourth stations, and four mechanical arms are on the truss conveying devices. A four-axis manipulator is between the fourth and fifth stations for transferring materials between the two stations and discharging finished products. Industrial cameras are on the second-station mechanical arm and the four-axis manipulator. Waste boxes are between the first and second stations and between the fourth and fifth stations. A discharging box is on the front side of the fifth station. A scrap conveying mechanism is below the production line. Flexible clamps and sliding rail cylinders are used, so that the production line is flexible.
    Type: Application
    Filed: September 7, 2020
    Publication date: November 3, 2022
    Inventors: Chengshun ZHU, Hui ZHANG, Yujun HUANG, Bincheng LI, Kaihang YANG, Lei DING
  • Patent number: 11476277
    Abstract: A method for forming a gate structure of a 3D memory device is provided. The method comprises: forming, on a substrate, an alternating dielectric stack including a plurality of dielectric layer pairs, each of the plurality of dielectric layer pairs comprising a first dielectric layer and a second dielectric layer different from the first dielectric layer; forming a slit penetrating vertically through the alternating dielectric stack and extending in a horizontal direction; removing the plurality of second dielectric layers in the alternating dielectric stack through the slit to form a plurality of horizontal trenches; forming a gate structure in each of the plurality of horizontal trenches; forming a spacer layer on sidewalls of the slit to cover the gate structures, wherein the spacer layer has a laminated structure; and forming a conductive wall in the slit, wherein the conductive wall is insulated from the gate structures by the spacer layer.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 18, 2022
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Lei Ding, Jing Gao, Chuan Yang, Lan Fang Yu, Ping Yan, Sen Zhang, Bo Xu
  • Patent number: 11469248
    Abstract: A three-dimensional (3D) NAND memory device is provided. The device comprises an alternating stack including a plurality of dielectric/conductive layer pairs each comprising a dielectric layer and a conductive layer. The device further comprises a conductive wall vertically penetrating through the alternating stack and extending in a horizontal direction, and a spacer layer on sidewalls of the conductive wall configured to insulate the conductive wall from the conductive layers of the alternating stack. The spacer layer comprises a first spacer sublayer having a first dielectric material, a second spacer sublayer having a second dielectric material, and a third spacer sublayer having a third dielectric material. The second spacer is sandwiched between the first spacer sublayer and the third spacer sublayer. A second k-value of the second dielectric material is higher than a first k-value of the first dielectric material and higher than a third k-value of the third dielectric material.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 11, 2022
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Lei Ding, Jing Gao, Chuan Yang, Lan Fang Yu, Ping Yan, Sen Zhang, Bo Xu
  • Patent number: 11468233
    Abstract: An intention identification method includes generating a heterogeneous text network based on a language material sample; using a graph embedding algorithm to perform learning with respect to the heterogeneous text network and obtain a vector representation of the language material sample and a word, and determining keywords of the language material sample based on a similarity in terms of a vector between the language material sample and the word in the language material sample; training an intention identification model until a predetermined training termination condition is satisfied, by using the keywords of the language material samples, and obtaining the trained intention identification model; and receiving a language material query, and using the trained intention identification model to identify an intention of the language material query.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: October 11, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Liang Liang, Lei Ding, Bin Dong, Shanshan Jiang, Yixuan Tong
  • Publication number: 20220277145
    Abstract: Methods and apparatuses for performing context completion to messages in a session are provided in the present disclosure. A message may be obtained. It may be detected that there exists context ellipsis in the message. It may be determined whether the message is retained in the current domain of the session. In response to determining that the message is retained in the current domain, a complementary text for recovering the context ellipsis may be selected in the current domain. A completed message may be generated based on the message and the complementary text.
    Type: Application
    Filed: June 17, 2020
    Publication date: September 1, 2022
    Inventors: Pingping Lin, Ruihua SONG, Lei DING, Yue LIU, Min ZENG
  • Publication number: 20220259768
    Abstract: Described are ?? T-cells that express a multivalent CLTX-CAR and also express a survival factor, a population of the ?? T-cells that express a multivalent CLTX-CAR and the survival factor, pharmaceutical compositions thereof, and methods of treating cancer or a tumor in a subject comprising administering to a subject an effective amount of the multivalent CLTX-CAR ?? T-cells and co-administering a chemotherapeutic agent, e.g., the chemotherapeutic agent to which the survival factor confers resistance.
    Type: Application
    Filed: January 20, 2022
    Publication date: August 18, 2022
    Inventors: Lei Ding, Lawrence S. Lamb, JR.
  • Patent number: 11418003
    Abstract: A chip may include a first substantially planar isolation layer with a first surface and a second surface opposite the first surface. The chip may include a first substantially planar conduction layer with a first surface positioned adjacent to the second surface of the first isolation layer and a second surface opposite the first surface. The chip may include a second substantially planar isolation layer with a first surface positioned adjacent to the second surface of the first conduction layer and a second surface opposite the first surface. The chip may include a second conduction layer etched on the second surface of the second isolation layer. The second conduction layer may include an anode trace, a cathode trace, and an optical transmitter positioned on the cathode trace. The chip may include one or more vias through the second isolation layer electrically coupling the anode trace with the first conduction layer.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 16, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventors: Jianwei Mu, Frank Lei Ding, Tao Wu, Hongyu Deng, Maziar Amirkiai
  • Patent number: 11378686
    Abstract: An ultrasound detect circuit includes a decimator that decimates a transmit signal to be transmitted through an ultrasonic transducer. The transmit signal is decimated to generate first and second template signals. The decimator uses a different decimation ratio to generate the first template signal than the second template signal. The circuit also includes a first correlator to correlate a signal derived from the ultrasonic transducer with the first template signal, aa second correlator to correlate the signal derived from the ultrasonic transducer with the second template signal, and a Doppler shift determination circuit to determine a Doppler frequency shift based on an output from the first correlator and an output from the second correlator.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: July 5, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy, Anand Dabak
  • Patent number: 11346941
    Abstract: Ultrasonic sensing systems and associated methods provide side-lobe reduction to improve the acoustic detection of small objects, the signature envelope peaks of which can otherwise be obscured by subsidiary envelope peaks in side lobes that result from residual correlation between a signal received by an ultrasonic transducer and a template signal corresponding to a burst signal emitted by the ultrasonic transducer. A shaping signal by which the amplitude of the burst signal can be varied with respect to time is taken into account in the template signal, and correlator circuitry correlates a signal derived from the ultrasonic transducer with the template signal to produce a correlated output exhibiting the desired side-lobe reduction. The distance from the transducer to the detected object can thereby be determined with enhanced accuracy and responsiveness.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: May 31, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy, Anand Gopalan, Michael John Zroka
  • Publication number: 20220161567
    Abstract: The present disclosure relates to the technical field of printer consumables, and in particular, to a communication method for a consumable chip, a consumable chip, and a consumable. The communication method for a consumable chip includes: in the process of consumable serial number authentication, performing non-AC authentication with an imaging device based on a first serial number, and performing AC authentication with the imaging device based on a second serial number. The non-AC authentication is performed on the chip by using the first serial number before the device is upgraded, such that the imaging device records the first serial number as a used chip serial number. The second serial number, which is set after the device is upgraded, is only used for AC authentication.
    Type: Application
    Filed: June 17, 2020
    Publication date: May 26, 2022
    Inventors: Lei Ding, Quan Sang
  • Patent number: 11270212
    Abstract: Knowledge graph processing method and device are disclosed. The method includes steps of obtaining an entity set containing a first entity, a second entity, and relation information; acquiring text information and image information related to the first entity and the second entity; generating a first structural information vector of the first entity and a second structural information vector of the second entity, and creating a first text information vector of the first entity, a first image information vector of the first entity, a second text information vector of the second entity, and a second image information vector of the second entity; and building a joint loss function so as to attain a first target vector of the first entity, a second target vector of the second entity, and a target relation vector of the relation information between the first entity and the second entity.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 8, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Lei Ding, Yixuan Tong, Bin Dong, Shanshan Jiang, Yongwei Zhang
  • Publication number: 20220065900
    Abstract: In a described example, a circuit includes a sensor circuit including multiple magnetic field sensors having respective sensor outputs. The magnetic field sensors are configured to provide magnetic field sensor signals at the respective sensor outputs representative of a measure of current flow through a conductive structure. A combiner interface has combiner inputs and a combiner output. The combiner inputs are coupled to the respective sensor outputs. The combiner interface is configured to provide an aggregate sensor measurement at the combiner output responsive to the magnetic field sensor signals, in which the aggregate sensor measurement is decoupled from magnetic fields generated responsive to the current flow through the conductive structure.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 3, 2022
    Inventors: LEI DING, SRINATH MATHUR RAMASWAMY, DOK WON LEE, BAHER HAROUN, WAI LEE, STEVEN JOHN LOVELESS
  • Publication number: 20220035031
    Abstract: Ultrasonic ranging systems and methods that emit coded bursts and correlate transduced acoustical echoes of the bursts with a receive template characterizing a burst code to determine time-of-flight information use receive templates of time-variable length to improve short-range object detection. The template length is based on a time index measured from the start of the burst emission. The detection can account for a dead zone of transducer ringing following a burst. A time-variable gain that is also based on the time index can be applied to the correlated signal. The length and gain can be adjusted with reduced temporal frequency to reduce computation cost.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Inventors: LEI DING, SRINATH MATHUR RAMASWAMY, ANAND GOPALAN
  • Patent number: 11223597
    Abstract: A network, including a first switch, a second switch, and a controller, where a management port of the first switch is coupled to a first forwarding port of the first switch, and a third forwarding port of the first switch is coupled to a fourth forwarding port of the second switch. In a boot phase of the network, the first switch communicates with a Dynamic Host Configuration Protocol (DHCP) server using a preset flow table, and obtains an Internet Protocol (IP) address of the first switch. The controller learns a connection relationship between forwarding ports of the first switch and the second switch using a probe packet and a probe flow table in order to control the first switch and the second switch.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: January 11, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei Ding, Shaofu Zuo
  • Patent number: 11186766
    Abstract: The invention discloses an intelligent water-control and gas-diversion particle for water-gas reservoirs and preparation method and application thereof, comprising core support layer with barbs, expandable water shutoff layer, water discharge and gas diversion layer, migration protection layer and suspension lift layer; the expandable water shutoff layer is wrapped on the outer surface of the core support layer and the root of the barb; the water discharge and gas diversion layer is wrapped on the outer surfaces of the expandable water shutoff layer and the barbs; the migration protection layer is wrapped on the outer surface of the water discharge and gas diversion layer; the outer surface of the migration protection layer forms a sphere; the suspension lift layer is wrapped on the outer surface of the migration protection layer.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 30, 2021
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Xiaohua Tan, Hao Yang, Xiaoping Li, Honglin Lu, Lei Ding, Yilong Li
  • Patent number: 11175402
    Abstract: Ultrasonic ranging systems and methods that emit coded bursts and correlate transduced acoustical echoes of the bursts with a receive template characterizing a burst code to determine time-of-flight information use receive templates of time-variable length to improve short-range object detection. The template length is based on a time index measured from the start of the burst emission. The detection can account for a dead zone of transducer ringing following a burst. A time-variable gain that is also based on the time index can be applied to the correlated signal. The length and gain can be adjusted with reduced temporal frequency to reduce computation cost.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 16, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy, Anand Gopalan
  • Patent number: 11171616
    Abstract: A first branch group circuit includes a first branch circuit receiving a first RF input signal and first control information; and a second branch circuit receiving the first input signal and second control information. Each of the first and second branch circuits includes a power amplifier. The second control information enables the second branch circuit to be switched on or off while the first branch circuit remains on. A second branch group circuit includes: a third branch circuit receiving a second RF input signal and third control information; and a fourth branch circuit receiving the second input signal and fourth control information. Each of the third and fourth branch circuits includes a power amplifier. The fourth control information enables the fourth branch circuit to be switched on or off while the third branch circuit remains on. A combiner combines output signals of the power amplifiers to produce an output signal.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: November 9, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Aritra Banerjee, Rahmi Hezar, Lei Ding, Nathan Richard Schemm
  • Patent number: D937727
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: December 7, 2021
    Assignee: Human Horizons (Jiangsu) Technology Co., Ltd.
    Inventor: Lei Ding