Patents by Inventor Jiandan Liu

Jiandan Liu 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).

  • Patent number: 10979814
    Abstract: An adaptive audio control method based on scenario identification includes: acquiring acceleration data of a user, and analyzing a use scenario of the user according to the acceleration data; acquiring an ambient sound signal of the surrounding environment of the user, calculating a sound level intensity of the ambient sound signal, and analyzing an energy and a spectral distribution of the ambient sound signal; and controlling, according to the use scenario, the sound level intensity of the ambient sound signal, and the energy and the spectral distribution of the ambient sound signal, an audio signal volume, and an active noise cancellation level, and regulation of the ambient sound signal of an audio playback device. The method further enables acquisition of geographic location data of the user and uses the same, as well as acceleration data, for analysis of the use scenario of the user.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: April 13, 2021
    Assignee: Beijing Xiaoniao Tingling Technology Co., LTD
    Inventors: Jian Zhao, Jiandan Liu
  • Publication number: 20200236466
    Abstract: An adaptive audio control method based on scenario identification includes: acquiring acceleration data of a user, and analyzing a use scenario of the user according to the acceleration data; acquiring an ambient sound signal of the surrounding environment of the user, calculating a sound level intensity of the ambient sound signal, and analyzing an energy and a spectral distribution of the ambient sound signal; and controlling, according to the use scenario, the sound level intensity of the ambient sound signal, and the energy and the spectral distribution of the ambient sound signal, an audio signal volume, and an active noise cancellation level, and regulation of the ambient sound signal of an audio playback device. The method further enables acquisition of geographic location data of the user and uses the same, as well as acceleration data, for analysis of the use scenario of the user.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 23, 2020
    Inventors: Jian Zhao, Jiandan Liu
  • Publication number: 20190246840
    Abstract: A horizontal shaking type automatic cooker includes five parts: a shaking platform, a heating device, a cooking pan, a motor, and an electronic control unit. The shaking platform includes two parts: a fixed base and a shaking flat plate. The fixed base and the shaking flat plate are connected through four eccentric gears that have a same diameter and are in rectangular arrangement. When the four eccentric gears synchronously rotate under the drive of the motor, the shaking flat plate and the cooking pan start to shake horizontally and circumferentially in a non-rotating manner, and a dish in the pan is turned and mixed under the action of inertia and impact force at a pan edge, so as to achieve a stirring effect. When the automatic cooker works during cover opening, water evaporates rapidly, there is much contact with oxygen gas, and a stir-frying effect is desirable.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 15, 2019
    Inventors: Jiandan Liu, Haiping Yang, Xiaoyan Liu