Patents by Inventor Songtao LIU

Songtao LIU 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: 20240100697
    Abstract: The present disclosure relates to a multi-thread controller for a parallel robot. All tasks are concentrated in four layered threads, namely, a main thread, a real-time thread, a preprocessing thread and a background thread; different priorities of tasks are placed in different levels of threads, so that motion logic is first ensured, second motion planning, then communication and interface interaction, and finally file reading and time consumption calculation; various operations are strictly performed in respective threads; and between the threads are provided a thread security queue for data interaction and a thread clock calling and task pushing mechanism, so that the security of communication calling and the flexibility of data interaction are realized between the threads.
    Type: Application
    Filed: April 12, 2022
    Publication date: March 28, 2024
    Inventors: Pingbu Zhu, Yanhua Li, Hui Wang, Zhifeng Li, Songtao Liu
  • Publication number: 20230224047
    Abstract: An optical power supply includes a plurality of lasers in a laser array. Each of the plurality of lasers is configured to generate a separate beam of continuous wave laser light. The optical power supply includes a temperature sensor that acquires a temperature associated with the laser array. The optical power supply includes a digital controller that receives notification of the temperature from the temperature senor. The optical power supply includes an optical power adjuster controlled by the digital controller. The optical power adjuster adjusts an optical power level of one or more beams of continuous wave laser light generated by the plurality of lasers to produce an optical power encoding that conveys information about the temperature associated with the laser array as acquired by the temperature sensor. An electro-optic chip receives the beams of continuous wave laser light from the optical power supply and decodes the optical power encoding.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 13, 2023
    Inventors: Matthew Sysak, Chen Sun, Shahab Ardalan, Daniel Jeong, Songtao Liu
  • Patent number: 11029466
    Abstract: There is set forth herein a method including a substrate; a dielectric stack disposed on the substrate; one or more photonics device integrated in the dielectric stack; and a laser light source having a laser stack including a plurality of structures arranged in a stack, wherein structures of the plurality of structures are integrated in the dielectric stack, wherein the laser stack includes an active region configured to emit light in response to the application of electrical energy to the laser stack.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: June 8, 2021
    Assignees: The Research Foundation for the State University of New York, The Regents of the University of California
    Inventors: William Charles, John Bowers, Douglas Coolbaugh, Daehwan Jung, Jonathan Klamkin, Douglas La Tulipe, Gerald L. Leake, Jr., Songtao Liu, Justin Norman
  • Patent number: 10757662
    Abstract: A method for transmitting pilots of an uplink shared channel comprises: determining, by a UE, transmit power of data carried in the uplink shared channel; determining, by the UE, transmit power of the pilots carried in the uplink shared channel according to the transmit power of the data carried in the uplink shared channel, and a pilot power boosting factor of the UE, wherein the pilot power boosting factor represents a multiple of transmit power of the pilots of the uplink shared channel in a resource element relative to transmit power of the data carried in the uplink shared channel in a resource element, the multiple is more than or equal to 1, and the pilots are transmitted in a symbol occupied by the pilots with a comb-like pattern; and transmitting, by the UE, the pilots of the uplink shared channel at the transmit power of the pilots.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 25, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Songtao Liu, Xueming Pan
  • Publication number: 20200166703
    Abstract: There is set forth herein a method including a substrate; a dielectric stack disposed on the substrate; one or more photonics device integrated in the dielectric stack; and a laser light source having a laser stack including a plurality of structures arranged in a stack, wherein structures of the plurality of structures are integrated in the dielectric stack, wherein the laser stack includes an active region configured to emit light in response to the application of electrical energy to the laser stack.
    Type: Application
    Filed: September 19, 2019
    Publication date: May 28, 2020
    Inventors: William CHARLES, John BOWERS, Douglas COOLBAUGH, Daehwan JUNG, Jonathan KLAMKIN, Douglas La Tulipe, Gerald L. LEAKE, JR., Songtao LIU, Justin NORMAN
  • Patent number: 10560902
    Abstract: The present disclosure provides a method, a device and an apparatus for controlling uplink transmission power, and a storage medium. The method includes: receiving, by a UE, configuration information, and determining a PC parameter corresponding to a TTI length of a first type and a PC parameter corresponding to a TTI length of a second type in accordance with the configuration information; and determining, by the UE, transmission power of a channel which is transmitted using the TTI length of the first type in accordance with the PC parameter corresponding to the TTI length of the first type, and transmission power of a channel which is transmitted using the TTI length of the second type in accordance with the PC parameter corresponding to the TTI length of the second type.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 11, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Songtao Liu, Xueming Pan
  • Publication number: 20190306808
    Abstract: A method for transmitting pilots of an uplink shared channel comprises: determining, by a UE, transmit power of data carried in the uplink shared channel; determining, by the UE, transmit power of the pilots carried in the uplink shared channel according to the transmit power of the data carried in the uplink shared channel, and a pilot power boosting factor of the UE, wherein the pilot power boosting factor represents a multiple of transmit power of the pilots of the uplink shared channel in a resource element relative to transmit power of the data carried in the uplink shared channel in a resource element, the multiple is more than or equal to 1, and the pilots are transmitted in a symbol occupied by the pilots with a comb-like pattern; and transmitting, by the UE, the pilots of the uplink shared channel at the transmit power of the pilots.
    Type: Application
    Filed: May 12, 2017
    Publication date: October 3, 2019
    Inventors: Xuejuan GAO, Songtao LIU, Pan XUEMING
  • Publication number: 20190230600
    Abstract: The present disclosure provides a method, a device and an apparatus for controlling uplink transmission power, and a storage medium. The method includes: receiving, by a UE, configuration information, and determining a PC parameter corresponding to a TTI length of a first type and a PC parameter corresponding to a TTI length of a second type in accordance with the configuration information; and determining, by the UE, transmission power of a channel which is transmitted using the TTI length of the first type in accordance with the PC parameter corresponding to the TTI length of the first type, and transmission power of a channel which is transmitted using the TTI length of the second type in accordance with the PC parameter corresponding to the TTI length of the second type.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 25, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Songtao LIU, Xueming PAN