Zhang Haiping

TL;DR: In this article, a gesture-based photographing control method and device is presented, which comprises the following steps: identifying a gesture action of a user by use of an ultrasonic sensor in a mobile terminal; determining a shape indicated by the gesture action; and controlling a camera to photograph an image corresponding to the shape.

TL;DR: In this article, the authors present a fingerprint unlocking control method and equipment, which comprises the steps that when the terminal equipment is in a screen-off state, a fingerprint image is acquired; a power management service is started, a display screen of the device is pre-lightened through the power management services, and when the display screen is prelightened, the luminance is weaker than that of the displayed screen in a completely lightened state.

TL;DR: In this paper, an information processing method and apparatus is presented to obtain a target distance between a target object and a terminal, determining a predetermined distance interval matched with the target distance, and outputting predetermined information corresponding to the matched predetermined distance intervals.

TL;DR: In this article, a range-finding calibration tool consisting of a placing platform and a calibration substrate over the placing platform is described, and the calibration substrate is used for reflecting received ultrasonic back to the ultrasonic sensor of the mobile terminal.

TL;DR: In this paper, a biological code recognition mode switching method and a mobile terminal are presented, which detects scene information of the environment in which the mobile terminal is located and activating a recognition mode corresponding to the scene information, and identifying biological characteristics of a user, wherein the recognition mode comprises: iris recognition, fingerprint recognition and face recognition.