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Ambient light detection device and method, and interactive device using the ambient light detection device

A detection device and ambient light technology, applied in the input/output of user/computer interaction, mechanical mode conversion, input/output process of data processing, etc., can solve the problems of cost, energy consumption, and high complexity

Active Publication Date: 2018-02-02
PIXART IMAGING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, multiple sensors are installed in the interactive device, and if the proximity sensor is installed, an infrared light source must be added, which is relatively high in terms of cost, energy consumption, and complexity.

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  • Ambient light detection device and method, and interactive device using the ambient light detection device
  • Ambient light detection device and method, and interactive device using the ambient light detection device
  • Ambient light detection device and method, and interactive device using the ambient light detection device

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Embodiment Construction

[0042] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. The drawings in the present invention are all schematic, mainly intended to show the functional relationship between each device and each component, and the shapes, thicknesses and widths are not drawn to scale.

[0043] The ambient light detection device of the present invention can be applied to various interactive devices such as touch panels, touch screens, mobile phones, personal digital assistants (PDAs), notebook computers, tablet computers, etc., or other applications.

[0044] refer to figure 2 , which is a schematic diagram of an ambient light detection device 20 according to an emb...

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Abstract

The invention provides an ambient light detection device which receives at least one visible light image generated by an image sensing element. The ambient light detection device includes an image sampling element and an analysis element. The image sampling component divides the visible light image into a plurality of image blocks, captures at least one sampling information in each image block, and generates a comparison information according to the sampling information captured before and after. The analysis element analyzes the comparison information to generate an analysis output signal.

Description

technical field [0001] The present invention relates to an ambient light detection device and method, in particular to an ambient light detection method that divides a visible light image into multiple image blocks, samples and analyzes the image blocks respectively to obtain an analysis output signal Devices and methods. The present invention also relates to an interactive device using such an ambient light detection device. Background technique [0002] The ambient light sensor (Ambient Light Sensor) is used to sense the ambient light and analyze the state of the ambient light; in order to produce a wavelength spectrum effect similar to that of the human naked eye, the structure of the ambient light sensor usually includes a coating, a digital-to-analog converter , and power amplifiers. Also, the proximity sensor (Proximity Sensor) is also used for sensing light, but its function is mainly used for sensing distance; the proximity sensor usually needs to add an infrared l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06F3/042G06F3/0484
Inventor 李泉欣
Owner PIXART IMAGING INC