Mobile terminal and method for determining signal-to-noise ratio of distance sensor
A technology of distance sensors and mobile terminals, applied in instruments, positioning, measuring devices, etc., can solve the problems of low signal-to-noise ratio of distance sensors and reduce the measurement accuracy of distance sensors, and achieve the effect of improving measurement accuracy and reducing noise floor.
Pending Publication Date: 2021-11-30
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology
The existence of this overlapping area can make the distance sensor have a stable reflection floor noise, resulting in a low signal-to-noise ratio of the distance sensor and reducing the measurement accuracy of the distance sensor
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[0039] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0040] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0041] Please refer to the attached figure 1 , in the mobile terminal 100, the distance sensor is generally installed on the top of the mobile terminal 100, and is used to measure the distance between the mobile phone and the human body during a call and control the display surface 111 and board 1...
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The invention discloses a mobile terminal and a method for determining the signal-to-noise ratio of a distance sensor, the mobile terminal comprises a screen cover plate, a middle frame, a display panel and the distance sensor, the screen cover plate is located at one side of the display panel, the display panel is located in the middle frame, and a gap is formed between the display panel and the middle frame; the distance sensor comprises a sensing part, the sensing part is provided with a light emitting part, a light receiving part and a light absorption plate arranged between the light emitting part and the light receiving part, the light emitting part and the light receiving part are arranged in the mobile terminal and located on the side, away from the screen cover plate, of the gap, and at least one of the light emitting part and the light receiving part is arranged relative to the gap. The emission view field of the light emitting part and the receiving view field of the light receiving part have an overlapping area, the overlapping area has a nearest point to the sensing part, and the nearest point is located on the screen cover plate. According to the mobile terminal and the method for determining the signal-to-noise ratio of the distance sensor, the ground noise of the distance sensor can be reduced, and the measurement precision of the distance sensor is improved.
Description
technical field [0001] The present invention generally relates to the technical field of electronic equipment, specifically to the technical field of distance sensors, and in particular to a mobile terminal and a method for determining the signal-to-noise ratio of the distance sensor. Background technique [0002] In order to improve the visual experience of the mobile terminal, the mobile terminal is tending to be developed with a full screen. When the mobile terminal is developing towards a full screen, it is necessary to solve the obstacle of the distance sensor to the full screen design. Taking mobile phones as an example, in order to increase the screen-to-body ratio of mobile terminals, the gap between the middle frame and the display panel is narrow, and the transmitter and receiver of the distance sensor cannot be placed, so the transmitter and receiver of the distance sensor are moved down to the gap. Directly below. [0003] However, when the transmitting part an...
Claims
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IPC IPC(8): G01S5/16G01S11/12
CPCG01S5/16G01S11/12
Inventor 陈朝喜
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD