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Digital loudspeaker and connection method thereof

A digital audio and speaker technology, applied in the field of digital speakers and their connections, can solve the problems of a large number of speakers and inconvenient connections, and achieve the effects of expanding audio output output power, facilitating music sharing, and increasing output power

Active Publication Date: 2015-05-06
TGI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The audio interfaces of the ordinary speakers are unidirectional, that is, they can only be used as audio input interfaces or audio output interfaces, and they must be connected in sequence according to the corresponding interfaces. It is inconvenient to connect, and there are many speakers to be connected.
[0003] Although the digital speakers of the prior art are more convenient to use than the traditional common speakers, their audio interfaces still have unidirectionality. The interfaces are connected in turn, and the shared audio signal can only be output by a specific speaker, and other speakers share and play the audio signal. It cannot be realized that the shared audio signal is output by any speaker, and other speakers share the audio signal.

Method used

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  • Digital loudspeaker and connection method thereof
  • Digital loudspeaker and connection method thereof
  • Digital loudspeaker and connection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Please refer to Figure 2 to Figure 6 , Figure 8 :

[0041] A digital speaker has a multiplexing port that can be used as an audio output or input. The speaker can play its own audio signal or an external audio signal. The external audio signal is an audio signal input to the speaker through the multiplexing port. The self-audio Signals can be output through this multiplexing port.

[0042] The digital sound box includes a digital audio module 1 , a logic selection switch 2 , a first analog switch 3 , a second analog switch 4 and a power amplifier module 5 .

[0043] The digital audio module 1 can be used to wirelessly receive the original audio signal sent from an external device (mobile phone, tablet computer, computer, etc.) and play the original audio signal as the speaker's own audio signal or output it through the multiplexing port 6 The logic selection switch 2 is used as an input signal for selecting an external audio signal or its own audio signa...

Embodiment 2

[0049] Embodiment two: please refer to Figure 2 to Figure 9 :

[0050] On the basis of Embodiment 1, the digital sound box of this embodiment also includes a third analog switch 7, which is used to select whether the left and right channel signals of the own audio signal are mixed, and the third analog switch The channel selection signal of 7 comes from the button control signal on the sound box, and the third analog switch 7 adopts a high-speed dual-channel analog switch (chip model is SGM4717). The audio signal output end of the digital audio module 1 is connected to the to-be-selected channel connection end of the third analog switch 7, and the common end of the third analog switch 7 is respectively connected to the part of the to-be-selected channel connection end of the logic selection switch 2 and the first channel connection end. The connection terminal of the path to be selected of the second analog switch 4 .

[0051] When the multiplexing port 6 is used as an audi...

Embodiment 3

[0053] Example 3: Please refer to Figure 1 to Figure 5 :

[0054] Certainly this digital sound box also can not set second analog switch and the 3rd analog switch, only comprises digital audio module 1, logical selection switch 2, first analog switch 3 and power amplifier module 5, the audio signal output end of this digital audio module 1 Respectively connect part of the to-be-selected path connection end of the logic selection switch 2 and a to-be-selected path connection end of the first analog switch 3, the common end of the logic selection switch 2 is connected to the input end of the power amplifier module 5, the first analog The other to-be-selected path connection end of the switch 3 is connected to another part of the to-be-selected path connection end of the logic selection switch 2, and the common end of the first analog switch 3 is connected to the multiplexing port 6;

[0055] When the multiplexing port is used as an audio output port, the digital audio module 1...

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Abstract

The invention discloses a digital loudspeaker and a connection method thereof. The digital loudspeaker is provided with a reuse port capable of serving as audio output or input, and the reuse ports of two digital loudspeakers can be connected through an audio signal line to form a stereo combined loudspeaker, or the reuse ports of a plurality of digital loudspeakers can be connected to form a loudspeaker array playing the same audio signal. The connection method of the loudspeaker is simple, a plurality of people can conveniently share music, output power can be enlarged, the requirements of parties are commonly met, and a plurality of digital loudspeakers can be distributed in a meeting place to create a uniform sound field.

Description

technical field [0001] The invention relates to a digital sound box and a connection method thereof. Background technique [0002] Ordinary speakers in the prior art receive the audio signal sent from the smart terminal through the input audio interface and then amplify and play it, or use two ordinary slave speakers and a main speaker, and the main speaker receives the audio signal sent from the smart terminal through its input audio interface. After processing, the left channel audio signal and the right channel audio signal are formed, and then the left channel audio signal and the right channel audio signal are respectively output to two ordinary slave speakers through its output audio interface to play the audio signal To form stereo sound, the two common slave speaker signals only have an input audio interface, and the one common master speaker has two interfaces, an input audio interface and an output audio interface. The audio interfaces of the ordinary speakers are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/24
CPCH04R1/20
Inventor 李世煌
Owner TGI TECH