A RGB LED Driving Structure and Signal Processing Based on Tone-to-Color Conversion  

作　　者：LUO Guizhou QI Kejun XIONG Xiaodong 

机构地区：[1]College of Electronics and Information, Yangtze University,Jingzhou 434102, Hubei, China [2]Wuhan Aladdin Science and Technology Corporation Limited, Wuhan 430205, Hubei, China

出　　处：《Wuhan University Journal of Natural Sciences》2017年第3期252-256,共5页武汉大学学报（自然科学英文版）

摘　　要：In order to solve the uncertainty of voice-to-color conversion in which one of the three voice features（loudness, tone, rhythm） is applied to control LED color, a linear conversion solution is proposed. And a chromaticity diagram is defined by using hue definition on hue-saturation-lightness（HSL） hue ring and the normalization of CIE xyY which is a color standard defined by International Commission on Illumination（CIE）. The chromaticity diagram shows a linear relation between pitch and color, which is referred to conversions of other physical parameters as well. Based on the solution, red（R）, green（G） and blue（B） LEDs, the driving structure of a conversion circuit is designed and set up. The results indicate that signal processing of tone-to-color conversion is effective, from 30 Hz to 3 kHz with a resolution of 10 Hz mapped to the chromaticity diagram.In order to solve the uncertainty of voice-to-color conversion in which one of the three voice features（loudness, tone, rhythm） is applied to control LED color, a linear conversion solution is proposed. And a chromaticity diagram is defined by using hue definition on hue-saturation-lightness（HSL） hue ring and the normalization of CIE xyY which is a color standard defined by International Commission on Illumination（CIE）. The chromaticity diagram shows a linear relation between pitch and color, which is referred to conversions of other physical parameters as well. Based on the solution, red（R）, green（G） and blue（B） LEDs, the driving structure of a conversion circuit is designed and set up. The results indicate that signal processing of tone-to-color conversion is effective, from 30 Hz to 3 kHz with a resolution of 10 Hz mapped to the chromaticity diagram.

关 键 词：International Commission on Illumination（CIE） hue-saturation-lightness（HSL） chromaticity diagram tone-to-color conversion RGB LED driving structure 

分 类 号：TN206[电子电信—物理电子学]