Controlling apparatus for luminous lamp group accompanied by music broadcasting

A music playback and control device technology, applied in the field of light-emitting light group control devices, can solve the problems of inability to control the absolute value of three primary color light-emitting lights, lack of movement and imagination, etc., and achieve perfect color visual effects, bright colors, and colors. rich effects

Inactive Publication Date: 2005-09-28
VIMICRO CORP
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Problems solved by technology

For example, the Chinese patent application number is "200410078330.9", and the patent application title is "a light-emitting lamp controller that emits light when playing music or ringtones", but this existing technology cannot

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  • Controlling apparatus for luminous lamp group accompanied by music broadcasting
  • Controlling apparatus for luminous lamp group accompanied by music broadcasting
  • Controlling apparatus for luminous lamp group accompanied by music broadcasting

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] According to Grassman's law, the visual response of the human eye should depend on the algebraic sum of the three primary color components of red, green, and blue, that is, their ratio determines the chromaticity, and its brightness is quantitatively equal to the sum of the three primary colors. At present, the three-primary-color light-emitting lamp group is mainly controlled by a pulse width modulation signal (PWM), and the brightness of the three-primary-color light-emitting lamp group is proportional to the duty cycle of the PWM signal. Therefore, the required chromaticity can be obtained by adjusting the ratio between the duty ratios of the PWM signals of the red, green, and blue primary color light-emitting lamp groups, and all required brightness can be obtained by adjusting the absolute values ​​of their duty ratios.

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Abstract

The present invention discloses a control device of luminous lamp group accompanied by music playback which can be used in digital equipment. Said invention includes the following components: central control module, trichromatic luminous lamp group, look-up table, trichromatic luminous lamp control signal generation module and luminance control module. Said invention also provides the concrete function and action of the above-mentioned every component, and also provides the effect and application of said control device.

Description

technical field [0001] The invention relates to a control device for a light-emitting lamp group in a digital product, in particular to a control device for a light-emitting lamp group accompanied by music playing. technical background [0002] At present, some digital products, such as mobile phones, MP3 players, CD players and other products, usually associate the rhythm of music with LED lights in order to visually produce a rhythm effect when playing music or ringtones. Some major manufacturers now associate the rhythm of music with the on and off of LED light-emitting lights, that is, the LED light-emitting lights are turned on and off rhythmically with the rhythm of music or ringtones. Although this scheme produces a rhythmic change visually, the visual change is relatively monotonous because it only changes in light and dark but not in color. [0003] We know that the two basic parameters of color vision are chromaticity and brightness. At present, there is also a r...

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Application Information

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IPC IPC(8): F21S10/00H05B37/02
Inventor 王军金传恩
Owner VIMICRO CORP
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