Patents Assigned to Shenzhen Shengyuan Tech Ltd.
  • Filter circuit for noise cancellation earphones
    Patent number: 9941860
    Abstract: The invention is a filter circuit for noise cancelling earphones wherein one end of the filter circuit for noise cancelling earphones is connected to the circuit for noise cancelling microphones. In the circuit starting from one end of the said noise cancelling microphones circuit connected to the resistor R0 set the first current node. The other end of the said noise cancelling microphones circuit is connected to the ground while the other end of the said resistor R0 is connected to the high level.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 10, 2018
    Assignee: Shenzhen Shengyuan Tech Ltd.
    Inventor: Zoey Liu
  • Wireless earphone
    Patent number: D999194
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: September 19, 2023
    Assignee: SHENZHEN SHENGYUAN TECH LTD
    Inventor: Huiyue Chen