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Audio signal switching and receiving device and audio signal transmission system

一种音频信号接收、音频信号的技术，应用在电子领域，能够解决无法通信等问题，达到降低成本、减小体积的效果

Active Publication Date: 2014-02-05
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The speaker interface to USB interface adapter cable in the prior art (for example, a 3.5mm headphone jack to USB interface adapter cable) can only be connected with a USB host device (for example, a personal computer) and a speaker interface device (for example, a mobile communication device) , for normal communication between the speaker interface device (e.g., a mobile communication device) and the USB host device
And the existing electronic equipment that is provided with USB interface usually belongs to USB slave equipment, can't use the horn interface in the prior art to transfer the USB interface adapter line and carry out communication with mobile communication device

Method used

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  • Audio signal switching and receiving device and audio signal transmission system
  • Audio signal switching and receiving device and audio signal transmission system
  • Audio signal switching and receiving device and audio signal transmission system

Examples

Experimental program
Comparison scheme
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no. 1 example

[0060] figure 1 It is a schematic structural diagram of the first embodiment of the audio signal switching device of the present invention; figure 1 As shown, the audio signal conversion device includes: speaker interface (such as figure 1 headphone plug shown), USB adapter (such as figure 1 USB plug shown); where:

[0061] The earphone plug is used to connect with the earphone jack of the audio signal sending device (for example, mobile phone) to receive the audio signal output by the audio signal sending device.

[0062] The headphone plug contains: audio pins (such as figure 1 AUDIO pin shown), ground pin.

[0063] The USB plug is used to connect with the USB slot of the audio signal receiving device to output the audio signal thereto.

[0064] The USB plug includes: power pin (VBUS pin), D+ pin, D- pin, and ground pin.

[0065] In this embodiment, the audio pin of the earphone plug is connected to the D+ pin of the USB plug, and the ground pin of the earphone plug is...

no. 2 example

[0075] image 3 It is a schematic structural diagram of the second embodiment of the audio signal switching device of the present invention; image 3 As shown, the difference between the second embodiment of the audio signal switching device of the present invention and the first embodiment is:

[0076] In the second embodiment, the audio signal conversion device connects the D- pin of the USB plug as an audio signal pin to the audio pin of the earphone plug, and uses the D+ pin as a reference signal pin to connect to the ground pin of the earphone plug. Connected to output audio signal to audio signal receiving device.

[0077] The second embodiment of the audio signal receiving device is the same as the first embodiment.

[0078] The second embodiment of the audio signal transmission system of the present invention is composed of the above audio signal switching device and audio signal receiving device.

no. 3 example

[0080] Figure 4 It is a schematic structural diagram of the third embodiment of the audio signal switching device of the present invention; Figure 4 As shown, the difference between the third embodiment of the audio signal switching device of the present invention and the first embodiment is:

[0081] The audio pins of the headphone plug are divided into: left channel pin and right channel pin. Both the left channel pin and the right channel pin are connected to the D+ pin (audio signal pin of the USB plug) of the USB plug.

[0082] The third embodiment of the audio signal receiving device is the same as the first embodiment.

[0083] The third embodiment of the audio signal transmission system of the present invention consists of the above audio signal switching device and audio signal receiving device.

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PUM

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Abstract

An audio signal adapter and receiver device and an audio signal transmission system. The adapter device comprises: an audio port and an adapter-end port, where the audio port is used for connecting to an audio signal transmitter device and comprises a ground pin and at least one audio pin. The adapter-end port is used for connecting to the audio signal receiver device and comprises an audio signal pin and a reference signal pin. The audio pin of the audio port is used for receiving an audio signal outputted by the audio signal transmitter device and for connecting to the audio signal pin of the adapter-end port. The ground pin of the audio port and the reference signal pin of the adapter-end port are connected. The audio signal pin and the reference signal pin are used for outputting to the audio signal receiver device connected thereto an audio signal.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an audio signal switching device, an audio signal receiving device, and an audio signal transmission system. Background technique [0002] With the development of audio signal encoding / decoding technology, more and more electronic devices transmit data through audio interface. For example, the electronic device may be connected to the mobile communication device through a speaker interface (eg, earphone interface) of the mobile communication device (eg, a mobile phone), and receive audio signals output by the mobile communication device. [0003] In addition, with the popularization of USB interfaces, a large number of electronic devices are provided with USB interfaces, so how to transmit audio signals between mobile communication devices and electronic devices through the speaker interface of the mobile communication device and the USB interface of the electronic device is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/16H04B1/40
CPCH05K5/0278H04R2420/03H04R2420/09G06F3/162H04R1/1091
Inventor 李东声
Owner TENDYRON CORP
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