Patents by Inventor Xiaozhong Cheng

Xiaozhong Cheng 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: 20240035917
    Abstract: The present invention relates to an oil leakage detection method of a microphone circuit, a microphone circuit, a microphone and an electronic product. The oil leakage detection method of a microphone circuit includes: detecting an equivalent resistance and/or equivalent voltage in an environment where the microphone circuit is located through an oil leakage detection pin arranged on a microphone circuit package; determining whether the equivalent resistance and/or equivalent voltage exceeds a corresponding preset value through a detection circuit arranged in the microphone circuit package; and outputting a signal for stopping operation of the microphone circuit when the equivalent resistance and/or equivalent voltage exceeds the preset value. Adoption of the present invention can ensure that the detection circuit can normally work when an oil leakage accident occurs in the environment where the microphone circuit package is located, thereby reducing potential safety hazards of the electronic product.
    Type: Application
    Filed: January 18, 2023
    Publication date: February 1, 2024
    Applicant: Shenzhen Chiptech Electronics Co., Ltd
    Inventors: Xiaozhong CHENG, Yanxu CHENG
  • Patent number: 8928277
    Abstract: An electronic cigarette and a wireless charging device for the same. The electronic cigarette comprises a receiving coil electrically connected with a battery. The receiving coil is provided in a body of the electronic cigarette and an axis of the coil is parallel to the electronic cigarette. The charging device comprises an electronic switch and a transmitting coil connected with a power source in sequence. The electronic switch is controlled by a transmitting control unit, and the transmitting coil is used for the electronic cigarette to be inserted therein. A housing of the charging device is provided with an inserting hole or a sleeve, which is placed correspondingly with the transmitting coil. The electronic cigarette and the wireless charging device for the same work in a non-contact manner by using a insert total electromagnetic coupling structure.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: January 6, 2015
    Assignee: Kimree Hi-Tech Inc
    Inventors: Zhiyong Xiang, Xiaozhong Cheng
  • Publication number: 20130298922
    Abstract: An electronic cigarette and a wireless charging device for the same. The electronic cigarette comprises a receiving coil electrically connected with a battery. The receiving coil is provided in a body of the electronic cigarette and an axis of the coil is parallel to the electronic cigarette. The charging device comprises an electronic switch and a transmitting coil connected with a power source in sequence. The electronic switch is controlled by a transmitting control unit, and the transmitting coil is used for the electronic cigarette to be inserted therein. A housing of the charging device is provided with an inserting hole or a sleeve, which is placed correspondingly with the transmitting coil. The electronic cigarette and the wireless charging device for the same work in a non-contact manner by using a insert total electromagnetic coupling structure.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 14, 2013
    Inventors: Zhiyong Xiang, Xiaozhong Cheng