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: 20200304456
    Abstract: This application discloses a network, including a first switch, a second switch, and a controller. A management port of the first switch is connected to a first forwarding port of the first switch, and a third forwarding port of the first switch is connected to a fourth forwarding port of the second switch. In a boot phase of the network, the first switch communicates with a DHCP server by using a preset flow table, and obtains an IP address of the first switch. Then, the controller learns a connection relationship between forwarding ports of the first switch and the second switch by using a probe packet and a probe flow table, so as to control the first switch and the second switch.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Inventors: Lei Ding, Shaofu Zuo
  • Publication number: 20200242302
    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: Application
    Filed: January 23, 2020
    Publication date: July 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Liang LIANG, Lei DING, Bin DONG, Shanshan JIANG, Yixuan TONG
  • Publication number: 20200242486
    Abstract: A method and an apparatus for recognizing an intention, and a non-transitory computer-readable recording medium are provided.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Liang LIANG, Lei Ding, Bin Dong, Shanshan Jiang, Yixuan Tong
  • Publication number: 20200225345
    Abstract: Ultrasonic ranging systems and methods that use coding to distinguish emitted bursts from multiple transducers temporally stagger the bursts emitted from the transducers. The stagger delay between bursts from different transducers in a sensing frame can be randomized between different sensing frames to prevent blind zones. The stagger delay can be relatively small (e.g., between 3 ms and 10 ms) as compared to delays required between bursts in a single-tone ranging system (which would need to be more on the order of between 30 ms and 40 ms, depending on the maximum detecting range of the ranging system). The coding of bursts can be selected to utilize the entire bandwidth of the bursting transducer so as to preserve short-range sensitivity over transducer ringing. Schemes in which some transducers in a system only listen for bursts from other transducers but do not themselves burst within a sensing frame are also described.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 16, 2020
    Inventors: LEI DING, Srinath Mathur Ramaswamy, Anand Gopalan, Vaibhav Garg, Anand Ganesh Dabak
  • Publication number: 20200209388
    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: Application
    Filed: December 26, 2018
    Publication date: July 2, 2020
    Inventors: Lei DING, Srinath Mathur RAMASWAMY, Anand DABAK
  • Patent number: 10682670
    Abstract: An ultrasonic detection circuit includes a transmitter circuit that provides excitation signals to an ultrasonic transducer during an excitation interval. A control circuit includes a port to receive a command. The control circuit controls the frequency and the duty cycle of the excitation signals of the transmitter circuit during the excitation interval. The control circuit generates a first excitation signal sequence of the excitation interval followed by a first monitoring period to receive a first echo signal in response to the command. The control circuit generates a second excitation signal sequence of the excitation interval followed by a second monitoring period to receive a second echo signal in response to the command. The control circuit outputs results via the port based on at least one of the first or second echo signals received.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 16, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy, Baher Haroun
  • Patent number: 10677902
    Abstract: An ultrasonic detection circuit includes a transmitter circuit that provides excitation signals to a terminal of an ultrasonic transducer to drive the ultrasonic transducer during an excitation interval. The excitation signals provided during the excitation interval include a first excitation signal at a first resonant frequency of the ultrasonic transducer followed by a second excitation signal at a second resonant frequency of the ultrasonic transducer. The first resonant frequency is different from the second resonant frequency.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: June 9, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy
  • Patent number: 10666204
    Abstract: A circuit includes an amplifier to amplify an input signal and generate an output signal. The circuit also includes a tuning network to tune frequency response of the amplifier. The tuning network includes at least one tunable capacitor, which includes at least one micro-electro mechanical system (MEMS) capacitor. The amplifier could include a first die, the at least one MEMS capacitor could include a second die, and the first die and the second die could be integrated in a single package. The at least one MEMS capacitor could include a MEMS superstructure over a control structure, which is to control the MEMS superstructure and tune the capacitance of the at least one MEMS capacitor.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 26, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Aritra Banerjee, Nathan R. Schemm, Rahmi Hezar, Lei Ding, Baher Haroun
  • Patent number: 10634917
    Abstract: The application discloses a smart user experience apparatus and a smart helmet, and the smart user experience apparatus includes a display device and a watching device, and further includes: a detecting device, located on the side of the watching device facing the experiencing user, configured to detect diopters of eyes of an experiencing user; and a vision correction device, located on the side of the watching device facing the experiencing user, connected with the detecting device, and configured to compensate for the vision of the experiencing user according to the diopters detected by the detecting device, so visions of experiencing users with the different visions can be compensated differently for, so that a nearsighted or farsighted experiencing user can see a clear image during watching even without wearing his or her glasses, thus eliminating his or her feeling of a pressure on his or her eyes while the experiencing user is wearing his or her glasses as in the prior art.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 28, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Ning Wang, Lei Ding, Pan Guo, Wei Li, Yanqing Chen
  • Publication number: 20200125731
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for container image vulnerability reduction. In one aspect, a method includes obtaining a first container image that is formed from a set of files, determining that a first particular file of the set of files is necessary for an application and a second particular file of the set of files is not necessary for the application based on execution of the application in a first container instantiated with the first container image, in response generating a second container image from the first particular file and not from the second particular file, and executing the application in a second container instantiated with the second container image.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 23, 2020
    Inventors: Azzedine Benameur, Chien An Chen, Lei Ding
  • Publication number: 20200117817
    Abstract: A device processes, with a model, an application to identify a set of file paths with process identifiers. The device identifies patterns associated with the set of file paths with process identifiers, and determines positions of random elements in each file path of the set of file paths with process identifiers. The device processes the patterns and the positions of the random elements to train a machine learning model, and utilizes the machine learning model to generate a first set of rules to identify files required for execution of the application, and a second set of rules to identify files not required for execution of the application. The device generates a mandatory access control policy based on the first set of rules and the second set of rules, and provides the mandatory access control policy to be implemented by an operating system of a client device.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 16, 2020
    Inventors: Chien An CHEN, Azzedine BENAMEUR, Lei DING
  • Publication number: 20200116961
    Abstract: A resistance weldable cover for an OSA may include multiple walls, one or more supports, and an opening disposed in one of the walls. The walls may define an interior cavity within the walls. The one or more supports may extend from one or more of the walls. Each of the one or more supports may be weldable to a heat sink stiffener. The opening may be sized and shaped to receive at least a portion of a barrel such that optical signals are transmittable between the interior cavity and the barrel.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Inventors: Frank Lei Ding, Maziar Amirkiai, Jianwei Mu, Hongyu Deng, Tao Wu
  • Patent number: 10585177
    Abstract: A circuit includes an ultrasonic transducer having a first terminal and a second terminal. The first terminal receives an electrical drive signal and excites the ultrasonic transducer during an excitation interval to provide an ultrasound signal. The first terminal also provides an electrical receive signal in response to the ultrasonic transducer receiving a reflected ultrasound signal. The circuit includes a capacitor having one terminal connected to the first terminal of the ultrasonic transducer. A resistor is connected to another terminal of the capacitor to form a resistor-capacitor (RC) network. At least one of resistor and the capacitor have a variable resistance or capacitance value that is set to tune the RC network to mitigate ringing of the ultrasonic transducer following the excitation interval.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: March 10, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lei Ding, Srinath Mathur Ramaswamy
  • Publication number: 20200050306
    Abstract: A method for interaction is provided. The method comprises: receiving a first content through a user interface (UI) of an application; sending the first content to a server; receiving a second content in response to the first content and a UI configuration-related data from the server; updating the UI based on the UI configuration-related data; and outputting the second content through the updated UI.
    Type: Application
    Filed: November 30, 2016
    Publication date: February 13, 2020
    Inventors: Tian Tan, Justin Ting, Yuan ZHANG, Lei Ding
  • Publication number: 20200041629
    Abstract: An ultrasonic sensing system includes: an amplifier including an input and an output; and an n-level comparator, coupled to the output of the amplifier, to compare an adjustable threshold voltage to an output signal from the output of the amplifier. N is greater than or equal to 1. The system also includes a noise power estimator, coupled to an output of the n-level comparator, to generate a noise power signal indicative of noise power of an input signal at the input of the amplifier. The system further includes a time-varying threshold circuit, coupled to the noise power estimator and the n-level comparator, to adjust the adjustable threshold voltage based on the noise power signal.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 6, 2020
    Inventors: Lei DING, Srinath Mathur RAMASWAMY
  • Publication number: 20200033462
    Abstract: In an ultrasonic detection system that uses frequency-modulation coding to distinguish emitted bursts from multiple transducers, a receiver associated with a transducer uses dynamic thresholding to discriminate valid echoes from system and environmental noise in multiple envelope signals produced by multiple correlators. The time-varying dynamic thresholds are generated from the mean of noise in a respective envelope derived from the output of a respective correlator. Multiple thresholds can be combined together such that a single time-varying threshold is applied to all correlators' envelopes. Such thresholding has the benefits of a constant false-alarm rate with regard to detection of echoes (as opposed to false triggering from noise), and, owing to finer-resolution and adaptive thresholds, can detect targets or obstacles as further distances and with greater time responsiveness.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 30, 2020
    Inventors: LEI DING, SRINATH MATHUR RAMASWAMY, VAIBHAV GARG, ANAND GOPALAN
  • Publication number: 20190389693
    Abstract: An elevator interactive terminal and an elevator interactive system. The elevator interactive system of the present invention comprises an elevator interactive terminal, configured with a social communication media module, wherein a user is registered as a first registered user in the social communication media module; and a server coupled to a communication bus of an elevator system, configured with the social communication media module and to register an elevator as the second registered user in the social communication media module, wherein, based on the social communication media module, interactive communication is performed between the first registered user on the elevator interactive terminal corresponding to the user and the second registered user on the server corresponding to the elevator.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Inventors: Dan Qing Sha, Murilo Bonilha, Yi Lin Chen, Jin Lei Ding, Jing Long Zhang, Ke Yang
  • Publication number: 20190379176
    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: Application
    Filed: August 6, 2019
    Publication date: December 12, 2019
    Inventors: Jianwei Mu, Frank Lei Ding, Tao Wu, Hongyu Deng, Maziar Amirkiai
  • Publication number: 20190339386
    Abstract: In an ultrasonic detection system that uses frequency-modulation or phase-modulation coding to distinguish emitted bursts from multiple transducers, a receiver associated with a transducer uses peak search, peak buffer, and peak rank stages in one or more receiver signal processing paths to identify valid received ultrasonic signal envelope peaks in correlator outputs. The peak rank stage can support different modes respectively designed to handle one code, two or more codes, or two or more codes with support for Doppler frequency shift detection. Valid peak information (e.g., amplitude and time) can be reported to a central controller and/or stored locally in a fusion stage to generate more intelligent information for targets or obstacles using peaks from multiple bursts.
    Type: Application
    Filed: March 26, 2019
    Publication date: November 7, 2019
    Inventors: LEI DING, SRINATH MATHUR RAMASWAMY, ANAND GOPALAN, VAIBHAV GARG, ANAND GANESH DABAK, BAHER S. HAROUN
  • Patent number: 10450163
    Abstract: An elevator interactive terminal and an elevator interactive system. The elevator interactive system of the present invention comprises an elevator interactive terminal, configured with a social communication media module, wherein a user is registered as a first registered user in the social communication media module; and a server coupled to a communication bus of an elevator system, configured with the social communication media module and to register an elevator as the second registered user in the social communication media module, wherein, based on the social communication media module, interactive communication is performed between the first registered user on the elevator interactive terminal corresponding to the user and the second registered user on the server corresponding to the elevator.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: October 22, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Dan Qing Sha, Murilo Bonilha, Yi Lin Chen, Jin Lei Ding, Jing Long Zhang, Ke Yang