Patents by Inventor Guangfeng LIU

Guangfeng 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: 20250023235
    Abstract: The present disclosure is related to an antenna filter unit (AFU), a radio unit (RU), and a communication device including the same. The AFU includes: one or more antenna elements; a first digital phase shifter communicatively coupled to at least a first antenna element of the one or more antenna elements, and configured to shift a phase of a first signal that is to be transmitted by the first antenna element; and a first IM filtering module communicatively coupled between the first digital phase shifter and the first antenna element, and configured to filter out an IM component from the first signal and output the filtered first signal.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 16, 2025
    Inventors: Juandi SONG, Guangfeng LIU
  • Publication number: 20240381554
    Abstract: Provided are a box frame and an LED display. The box frame comprises a frame border for installing an LED module, the frame border comprises a plurality of connecting seats and a plurality of frames, each connecting seat connects two adjacent frames, the connecting seat and the frame are alternately connected to form a closed structure; and the frame comprises an inner plate, an outer plate, a partition, a first reinforcing structure and a second reinforcing structure, the inner plate and the outer plate are arranged at intervals, the partition is connected between the inner plate and the outer plate, so as to divide space between the inner plate and the outer plate into a first groove and a second groove, the first reinforcing structure is arranged in the first groove and the second reinforcing structure is arranged in the second groove.
    Type: Application
    Filed: June 15, 2023
    Publication date: November 14, 2024
    Inventors: Xianfeng Zhang, Yongjun Zhang, Guoqiang Li, Zhiqiang Gao, Guangfeng Liu
  • Publication number: 20230303497
    Abstract: The present invention discloses a compound as a sodium channel regulator, and this type of compound can effectively inhibit and block the activity of Nav1.8 ion channel, a subtype of voltage-gated sodium channels, and can be used as a specific Nav1.8 inhibitor and to prepare drugs for the treatment of pain diseases mediated by Nav1.8 such as of intestinal pain, neuropathic pain, musculoskeletal pain, acute pain, inflammatory pain, cancer pain, primary pain, multiple sclerosis, Charcot-Marie-Tooth syndrome, incontinence, and cardiac arrhythmia, with broad application prospects.
    Type: Application
    Filed: May 18, 2023
    Publication date: September 28, 2023
    Inventors: Junfeng REN, Guangfeng LIU, Xiancai WU, Nan DU, Pengwu LI, Xiaoyun YANG, Qingsong ZHOU, Chenguang YUAN, Yingfu LI
  • Publication number: 20220224291
    Abstract: Device and method are disclosed for downlink gain compensation at a radio unit. According to an embodiment, the device comprises a pre-distortion circuit, a digital gain adjuster, a gain determiner and a first gain controller. The pre-distortion circuit is configured to generate and apply a pre-distortion to an input signal. The digital gain adjuster is configured to apply an adjustable gain to an output signal from the pre-distortion circuit. The gain determiner is configured to determine a gain difference between a target downlink gain and current downlink gain. The first gain controller is configured to control the digital gain adjuster based on the gain difference. A radio unit comprising the device is also disclosed.
    Type: Application
    Filed: April 4, 2022
    Publication date: July 14, 2022
    Inventors: Peng Liu, Yahui LIU, Junfeng JIE, Gan WEN, Guangfeng LIU
  • Patent number: 11296658
    Abstract: Device and method are disclosed for downlink gain compensation at a radio unit. According to an embodiment, the device comprises a pre-distortion circuit, a digital gain adjuster, a gain determiner and a first gain controller. The pre-distortion circuit is configured to generate and apply a pre-distortion to an input signal. The digital gain adjuster is configured to apply an adjustable gain to an output signal from the pre-distortion circuit. The gain determiner is configured to determine a gain difference between a target downlink gain and current downlink gain. The first gain controller is configured to control the digital gain adjuster based on the gain difference. A radio unit comprising the device is also disclosed.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Peng Liu, Yahui Liu, Junfeng Jie, Gan Wen, Guangfeng Liu
  • Publication number: 20200177139
    Abstract: Device and method are disclosed for downlink gain compensation at a radio unit. According to an embodiment, the device comprises a pre-distortion circuit, a digital gain adjuster, a gain determiner and a first gain controller. The pre-distortion circuit is configured to generate and apply a pre-distortion to an input signal. The digital gain adjuster is configured to apply an adjustable gain to an output signal from the pre-distortion circuit. The gain determiner is configured to determine a gain difference between a target downlink gain and current downlink gain. The first gain controller is configured to control the digital gain adjuster based on the gain difference. A radio unit comprising the device is also disclosed.
    Type: Application
    Filed: August 13, 2018
    Publication date: June 4, 2020
    Inventors: Peng LIU, Yahui LIU, Junfeng JIE, Gan WEN, Guangfeng LIU