Patents Assigned to GEO MICRO DEVICES (XIAMEN) CO., LTD
  • Patent number: 11454943
    Abstract: A serial isolated communication method, applied to a transmitter of a serial isolated communication system, includes: obtaining isolated communication data to be transferred; encoding isolated communication data with more than two bits into corresponding data pulse signals according to a preset encoding rule, wherein a group of data pulse signals include a positive pulse, a negative pulse, and a delay of 0 or N pulse widths between the positive pulse and the negative pulse, and N?1; and transferring the data pulse signals to a receiver. A serial isolated communication method, applied to a receiver of a serial isolated communication system, includes: receiving data pulse signals transferred from a transmitter; decoding the data pulse signals into the isolated communication data according to a preset decoding rule; and obtaining the isolated communication data. Serial isolated communication device and system are further provided.
    Type: Grant
    Filed: November 21, 2020
    Date of Patent: September 27, 2022
    Assignee: GEO MICRO DEVICES (XIAMEN) CO., LTD
    Inventors: Hengsheng Liu, Yixin Wang, Jiangbo Xu, Zhongjian Hang
  • Publication number: 20220163936
    Abstract: A serial isolated communication method, applied to a transmitter of a serial isolated communication system, includes: obtaining isolated communication data to be transferred; encoding isolated communication data with more than two bits into corresponding data pulse signals according to a preset encoding rule, wherein a group of data pulse signals include a positive pulse, a negative pulse, and a delay of 0 or N pulse widths between the positive pulse and the negative pulse, and N?1; and transferring the data pulse signals to a receiver. A serial isolated communication method, applied to a receiver of a serial isolated communication system, includes: receiving data pulse signals transferred from a transmitter; decoding the data pulse signals into the isolated communication data according to a preset decoding rule; and obtaining the isolated communication data. Serial isolated communication device and system are further provided.
    Type: Application
    Filed: November 21, 2020
    Publication date: May 26, 2022
    Applicant: Geo Micro Devices (Xiamen) Co., Ltd
    Inventors: Hengsheng LIU, Yixin WANG, Jiangbo XU, Zhongjian HANG
  • Patent number: 11171645
    Abstract: A transistor switching circuit and an integrated circuit thereof are provided. The transistor switching circuit includes: at least two transistors M1 and M2, and a voltage follower. The gate of the transistor M1 and the gate of the transistor M2 are connected to a first node G, the first node G is connected to a first current source, and the source of the transistor M1 and the source of the transistor M2 are connected to a second node S1. The voltage follower includes a transistor M3 and a second current source. The gate of the transistor M3 is connected to the second node S1, and the source of the transistor M3 is connected to the second current source. One end of a resistive device is connected to the source of the transistor M3, and another end of the resistive device is connected to the first node G.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: November 9, 2021
    Assignee: GEO MICRO DEVICES (XIAMEN) CO., LTD
    Inventor: Hengsheng Liu