Power line transmission digital multiple track speaker system

A technology of power line transmission and speaker system, applied in the field of speaker system and power line transmission digital multi-channel speaker system, can solve the problems of high price, complicated structure of transmission device, unsuitable for popularization and application, etc., and achieves performance improvement and high transmission data rate. Effect

Inactive Publication Date: 2004-12-29
雅迪发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some people try to add digital signals to the power supply for online transmission, these transmission device

Method used

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  • Power line transmission digital multiple track speaker system
  • Power line transmission digital multiple track speaker system

Examples

Experimental program
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Embodiment Construction

[0016] figure 1 , figure 2 Example 1 is constructed. This embodiment includes a transmitting device and a receiving device.

[0017] from figure 1 It can be seen that the transmitting device is formed by connecting an analog-to-digital conversion circuit 11, an encoding circuit 12 and an output coupling circuit 13. The input end of the analog-to-digital conversion circuit 11 is connected to the input audio signal source 10, and the output end is connected to the input end of the encoding circuit 12. The encoding circuit The output terminal of 12 is connected to the input terminal of the output coupling circuit 13, and the output terminal of the output coupling circuit 13 is connected to the power line. The analog-to-digital conversion circuit 11 is composed of an analog-to-digital conversion chip CS5331A, and the encoding circuit 12 is composed of an encoding chip CS8402A and a clock circuit 14, and its clock signal input terminal is connected to the output terminal of the...

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PUM

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Abstract

The invention relates to a power line transmission multiple sound track digital speaker system comprising an emitting apparatus and a receiving apparatus, wherein wherein the emitting apparatus comprises an AD conversion circuit, a coding circuit and an output coupling circuit through connection, the AD conversion circuit connects input audio signals and the input end of the coding circuit, the coding circuit is provided with a RS422 drive, the output coupling circuit is connected to the power transmission line.

Description

technical field [0001] The invention relates to a sound box system, in particular to a power line transmission digital multi-channel sound box system. It belongs to the technical field of audio electronic products. Background technique [0002] Transmitting sound signals over power lines has been used for decades in applications such as baby monitors and light controls. Recently, FM stereo transmission and reception can also be transmitted through power lines. However, most of the power line transmissions in the prior art are direct audio transmissions. Compared with digital audio, the sound quality of this audio direct transmission is still far from the professional requirements. Although some people try to add digital signals to the power supply for online transmission, these transmission devices are complex in structure and expensive, and are not suitable for popularization and application, especially not suitable for popularization and application in families. Conten...

Claims

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Application Information

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IPC IPC(8): H04B3/54
Inventor 黄永基温达成
Owner 雅迪发展有限公司
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