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Universal digital crossover network audio system

A technology of audio system and crossover network, which is applied in the field of popular digital crossover network audio system, and can solve problems such as difficulty in popularization

Inactive Publication Date: 2011-12-21
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of expensive components, it is only suitable for expensive audio systems, so it is difficult to popularize

Method used

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  • Universal digital crossover network audio system

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Experimental program
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Embodiment Construction

[0027] Hereinafter, embodiments of the popular digital crossover network audio system according to the present invention will be described in detail with reference to the accompanying drawings.

[0028] figure 2 It is a diagram showing the configuration of an embodiment of a digital crossover network audio system (Digital Crossover Network System) according to the present invention, that is, an audio enclosure (Speaker Encloser) 40. The audio device in the audio housing 40 is composed of a decoder 41, a power supply unit 42, a PWM (Pulse Width Modulator) part 43, and a digital power amplifier.

[0029] In the above-mentioned configuration, the above-mentioned PWM component 43 includes a pulse width modulator (PWM) for pulse amplitude conversion audio signals, and is composed of EQ HPF (EQ high pass filter), EQ BPF (EQ band pass filter), EQ LPF (EQ low A crossover network (with EQ) constituted by a pass filter) and a gain controller (Gain Controller) for obtaining and adjusting th...

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PUM

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Abstract

The invention relates to a popular digital crossover network sound system. Including: a pulse width modulator for converting the input audio of the pulse width; a filter for dividing the above-mentioned pulse-width-converted audio signal into high, medium and low frequencies respectively; an acquisition control for adjusting the output level of the above-mentioned divided audio signal The device; the power amplifies the above-mentioned audio signal output by the controller and outputs it to the digital power amplifier in the speaker. The present invention can utilize digital components to minimize the error in the frequency division of the audio signal, and can also properly preserve the audio reproduction and output level to suit the inherent characteristics of the audio, thereby fully reproducing the original sound of the audio, so as to effectively prevent the inherent characteristics of the audio from being affected by the audio. It can be distorted by the original sound of the original sound, and it can be used without expensive components such as DSP and preamplifier, so this is a very useful invention that can be popularized.

Description

Technical field [0001] The present invention relates to a popular digital crossover network audio system, in particular to a popular digital crossover network audio system that can preserve audio reproduction and output levels suitable for the characteristics of the audio without using expensive components, so that the original audio can be fully reproduced. Background technique [0002] Recently, various types of audio equipment capable of amplifying and outputting high-quality audio signals into high-output sound are being developed and marketed, and such audio equipment requires an audio system. [0003] figure 1 It is a diagram showing the configuration of the Analog Crossover Network System (Analog Crossover Network System) mainly used in general audio equipment. It includes a pre-amplifier (Pre-Amp) (10), a power amplifier (Power Amp) 20, a crossover network composed of R, L, and G, and a speaker enclosure (Speaker Encloser) 30 including a speaker. [0004] The above-mentioned...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S7/00H04S5/00
Inventor 权悟石金钟宇那太英崔敬石
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI