Patents by Inventor Chenghui Liang

Chenghui Liang 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).

  • Touch unlocking method and apparatus, and electronic device
    Patent number: 9280282
    Abstract: A touch unlocking method includes obtaining position information of a plurality of touch points on a device screen in response to sliding of a touch medium on the device screen. A value that reflects a change of a distance between touch points of the plurality of touch points is monitored when the plurality of touch points are located in plurality of touch areas on the device screen respectively. The unlocking control on the device screen is performed according to a result of a comparison between the value that reflects the change of the distance between the touch points and a distance change threshold.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: March 8, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chenghui Liang, Chao Ruan
  • Touch Unlocking Method and Apparatus, and Electronic Device
    Publication number: 20130321305
    Abstract: A touch unlocking method includes obtaining position information of a plurality of touch points on a device screen in response to sliding of a touch medium on the device screen. A value that reflects a change of a distance between touch points of the plurality of touch points is monitored when the plurality of touch points are located in plurality of touch areas on the device screen respectively. The unlocking control on the device screen is performed according to a result of a comparison between the value that reflects the change of the distance between the touch points and a distance change threshold.
    Type: Application
    Filed: May 16, 2013
    Publication date: December 5, 2013
    Inventors: Chenghui Liang, Chao Ruan