Patents Assigned to Beijing Sigma Microelectronics Co., Ltd
  • Patent number: 10742223
    Abstract: A method and device for calibrating an RC oscillator, a storage medium and a processor are provided. The method may include: in a first communication time period, a frequency of a first RC oscillator is adjusted at a first communication frequency point; at the first communication frequency point, the frequency of the first RC oscillator is adjusted according to a default gear of the first RC oscillator sequentially, and at least one of a corresponding gear value and a corresponding frequency when the first device end may receive or may not receive data sent by a second device end is recorded; a first target frequency and a first target gear value of the first RC oscillator are determined according to the at least one of a corresponding gear value and a corresponding frequency; and the first device end is controlled to communicate with the second device end at a second communication frequency point which is determined by the first target gear value in a second communication time period.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 11, 2020
    Assignee: BEIJING SIGMA MICROELECTRONICS CO., LTD
    Inventors: Zhiqian Li, Zhixun Yang
  • Patent number: 10159281
    Abstract: The present disclosure claims an electronic cigarette, a cigarette rod, a cigarette cartridge, and a recognition method of a cigarette cartridge, wherein the electronic cigarette includes: the cigarette rod and the cigarette cartridge. The cigarette rod includes: a battery and a controller, and the cigarette cartridge includes: an atomizer and a recognition information provider component connected with the atomizer, wherein the atomizer is connected with the controller via the recognition information provider component, wherein the recognition information provider component is configured to send recognition information to the controller, and the controller is configured to judge whether the cigarette rod and the cigarette cartridge are matched, and if so, allow the atomizer to work normally. Otherwise, the controller executes alarming or prohibits the atomizer from working normally.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 25, 2018
    Assignee: Beijing Sigma Microelectronics Co., Ltd
    Inventor: Zhiqian Li