Terminal Light Emitting Element Synchronization for Depth Sensing
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Solution Overview
Problem
Legacy sensors face challenges in obtaining and processing data in real time, often misrecognizing subjects due to background and environmental factors, leading to inconveniences and false operations, especially in conditions like dark rooms or with ambient light.
Innovation Solution
A terminal equipped with a camera, a light emitting unit comprising multiple light emitting elements, and a controller that synchronizes the light emission with a sensor to extract depth information, allowing precise subject detection and movement tracking even in challenging environments by controlling light emission based on predetermined times or intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a legacy sensor is used to sense pixel data, then the terminal can perform basic sensing functions, but it cannot obtain and process information in real time and may misrecognize subjects due to background and environmental factors
Solution Approach 1:
The sensor array is divided into multiple independently controllable sensing units, each capable of being selectively activated. This segmentation allows the system to activate only specific sensing units corresponding to regions of interest, improving measurement precision while reducing interference from background environments.
Solution Approach 2:
The light emitting elements and sensors operate in synchronized periodic cycles, with light emission and sensing operations coordinated in time. This periodic synchronization enables real-time information acquisition and allows the system to capture subject information at specific time intervals, improving both accuracy and reliability.
2Adaptability or versatility
If multiple light emitting elements are used to extract depth information, then the terminal can perform various camera functions, but power consumption increases
Solution Approach 1:
Different light emitting elements are activated based on the specific camera function being performed. The system selectively activates only the necessary light emitting elements corresponding to the current operational requirements, providing adaptability for various functions while minimizing power consumption by avoiding unnecessary activation.
Solution Approach 2:
The system activates only a subset of light emitting elements rather than all elements simultaneously. By activating only the minimum necessary number of light emitting elements to achieve the desired depth information and camera function, the system reduces power consumption while maintaining functional versatility.
3Speed
If the sensor operates continuously to capture real-time data, then the terminal can detect subject movement accurately, but power consumption increases
Solution Approach 1:
The sensor operates in periodic intervals rather than continuously, with activation synchronized to light emission cycles. This periodic operation maintains the ability to detect subject movement accurately by capturing data at regular intervals while significantly reducing power consumption compared to continuous operation.
Solution Approach 2:
The system activates the sensor in advance of or in synchronization with light emission events. By preliminarily activating the sensor before or during the light emission window, the system ensures real-time data capture capability while limiting operation to specific time intervals, thereby reducing overall power consumption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time data processing and precise subject detection, minimizing misrecognition and power consumption through optimized synchronization between light emitting elements and sensors, enhancing system efficiency and reliability.
Implementation Method 1
a light emitting element configured to emit a light to a space corresponding to an image received through the camera
Implementation Method 2
at least one sensor configured to sense a pixel-based data
Data Source
AI summary
A terminal including a light emitting element and at least one sensor and a method of controlling the terminal are disclosed in the present specification. According to one embodiment of the present invention, the terminal includes a camera, a light emitting unit configured to include a plurality of light emitting elements and emit a light to a space corresponding to an image received via the camera, a first sensor configured to sense a pixel-based data, and a controller configured to control a light emitting element to emit a light to a space corresponding to a part of a plurality of the light emitting elements according to a predetermined time or an interval to extract depth information on a part of the image, the controller configured to control the first sensor to sense a pixel data in a manner of being activated according to a light emission time or an interval of the light emitting element.