CN204993803U

CN204993803U - Digital audio's optical signal switches adapter

Info

Publication number: CN204993803U
Application number: CN201520396021.XU
Authority: CN
Inventors: 朱小平; 李森山
Original assignee: Shenzhen East Toptech Electronic Technology Co ltd
Current assignee: Shenzhen East Toptech Electronic Technology Co ltd
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2016-01-20
Anticipated expiration: 2025-06-10

Abstract

The utility model provides a digital audio's optical signal switches adapter includes signal input module, signal output module, connects signal switching module between signal input module and the signal output module and audio frequency conversion module, instruction receiving module, MCU control module, the signal input module is including 4 way audio signal's of input optic fibre input terminal, the signal output module is including 1 way audio signal's of output optic fibre output terminal, signal switching module is used for following in the signal input module selectively with 1 way audio signal in the optic fibre input terminal send to the output of optic fibre output terminal. This adapter has loaded four ways optic fibre (SPDIF) input terminal, handles through the internal circuit, can to AUDIO playback devices, greatly make things convenient for the use with optic fibre (SPDIF) the signal output that wherein goes the same way wantonly, it is more convenient to make audio equipment use, more comfortable, more high -efficient, more energy -conserving.

Description

The fiber-optic signal of digital audio switches adapter

Technical field

The utility model relates to signal shifter field, particularly relates to a kind of fiber-optic signal multi-channel optical fibre signal being converted to the digital audio that a road fiber-optic signal exports and switches adapter.

Background technology

When demonstrating multimedia audio-visual equipment, there is the playing audio/video needing output multi-channel HDMI signal, these HDMI signal output apparatus need to be wired to respectively on the display device of compatible high-definition signal, but the quantity of live play equipment and display device is not necessarily mated, or some display device often will change the program of the different playback equipment of display, if plug HDMI Signal plug back and forth, waste time on the one hand, easily damage HDMI Signal plug, socket on the other hand.A kind of signal shifter switching to multichannel HDMI to output signal to multichannel HDMI input signal is needed in market badly.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of fiber-optic signal multi-channel optical fibre signal being converted to the digital audio that a road fiber-optic signal exports to switch adapter.

For achieving the above object, the utility model provides a kind of fiber-optic signal of digital audio to switch adapter, comprises the signal input module of input optical fibre audio signal and the signal output module for output optical fibre audio signal.

Wherein, the fiber-optic signal of described digital audio switches adapter and also comprises: be connected to signal switching module between described signal input module and signal output module and audio conversion module in turn, the command reception module of reception operator switching command, link order receiver module carry out code conversion to switching command thus control the MCU control module of described signal switching module work; Described signal input module comprises optic fibre input end of input 4 tunnel audio signal, and described signal output module comprises fiber-optic output of output 1 tunnel audio signal; Described signal switching module is used for from described signal input module, selectively 4 tunnel audio signals are sent to described fiber-optic output and exports.

Further, optic fibre input end of described 4 tunnel audio signals is input optical fibre signals independent of one another.

Further, described audio conversion module is used for the audio signal after the switching of described signal switching module being selected and is converted to the optical fiber audio signal supporting Optical Fiber Transmission, and this optical fiber audio signal is sent to described signal output module.

Further, the switching command that described command reception module sends for receiving operator, and send to MCU control module to encode this instruction, switching command after coding is sent to described signal switching module by described MCU control module, controls described signal switching module and switches the 4 tunnel audio signals selecting the input of optical fiber input terminal according to switching command.

Further, described command reception module comprises LED light and button assembly, and described LED light is used to indicate the switching selection mode of the optical fiber audio signal that current described signal output module exports.

Further, the fiber-optic signal of described digital audio switches adapter and also comprises power module, and described in described electric power source pair of module, signal switching module, described command reception module, described MCU control module, described audio conversion module provide operating voltage.

The beneficial effects of the utility model:

The fiber-optic signal of the digital audio that the utility model provides switches adapter the utility model optical fiber and digital audio signal switch and is loaded with four road optical fiber (SPDIF) input terminals, by internal circuit process, wherein any road optical fiber (SPDIF) signal can be outputted to AUDIO playback equipment, be very easy to use; Audio frequency apparatus is made to use more convenient, more comfortable, more efficiently, more energy-conservation.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, by describing in detail embodiment of the present utility model, will make the technical solution of the utility model and other beneficial effect apparent.

In accompanying drawing,

Fig. 1 is that the fiber-optic signal of the utility model digital audio switches adaptor module schematic diagram;

Fig. 2 is the utility model power module schematic diagram;

Fig. 3 is the utility model power module circuitry connection diagram;

Fig. 4 is the utility model signal input module and audio conversion module circuit diagram;

Fig. 5 A and 5B is the utility model command reception modular circuit connection diagram;

Fig. 6 is the utility model MCU control module circuit connection diagram;

Fig. 7 is the utility model signal output module circuit connection diagram.

Drawing reference numeral:

1, signal input module; 2, signal output module; 3, signal switching module; 4, command reception module; 5, MCU control module; 6, audio conversion module; 7, power module; 71, Power Entry Module; 72, power supply processing module.

Embodiment

For further setting forth the technological means and effect thereof that the utility model takes, be described in detail below in conjunction with preferred embodiment of the present utility model and accompanying drawing thereof.

Refer to Fig. 1, for achieving the above object, the utility model provides a kind of fiber-optic signal of digital audio to switch adapter.

Refer to Fig. 1, the fiber-optic signal of described digital audio switches adapter and comprises: signal input module 1, signal output module 2, signal switching module 3, audio conversion module 6, MCU control module 5 and command reception module 4;

Wherein, described signal input module 1 for input optical fibre audio signal, described signal output module 2 for output optical fibre audio signal.

Wherein, described signal switching module 3 and audio conversion module 6 are connected in turn between described signal input module 1 and signal output module 2; Described command reception module 4 is for receiving operator's switching command; Described MCU control module 5 link order receiver module 4 pairs of switching commands carry out code conversion thus control described signal switching module 3 working.

Wherein, described signal input module 1 comprises optic fibre input end of input 4 tunnel audio signal, and described signal output module 2 comprises fiber-optic output of output 1 tunnel audio signal; Described signal switching module 3 exports for selectively 4 tunnel audio signals being sent to described fiber-optic output from described signal input module 1.

In the present embodiment, optical fiber audio signal described in 4 tunnels inputs from described signal input module 1, selecting wherein optical fiber audio signal described in 1 tunnel to export audio conversion module 6 to according to the switching command of signal switching module 3, described audio conversion module 6 is sent to signal output module 2 after the optical fiber audio signal that this 1 tunnel exports being converted to the signal format of applicable optical fiber output and exports.

In the present embodiment, the switching command of described signal switching module 3 comes from MCU control module 5 and command reception module 4, concrete, described command reception module 4 receives the switching command that operator sends, and this switching command is sent to described MCU control module 5, the switching command of reception is encoded by described MCU control module 5, and the switching command after coding is sent to described signal switching module 3 for its identification, and controls the switching action of described signal switching module 3.

Owing to being originally execution mode, have employed the terminal of the terminal of many optical fiber input, the output of single optical fiber, multiple input but only audio frequency apparatus of exporting of needs one when can adapt to apply, the selectable multiple audio signal of broadcasting in such as, a sound system in market.

In the present embodiment, independently optical fiber input signal, can ensure that the fiber-optic signal switched out does not interfere with each other.

Further, this optical fiber audio signal for the audio signal after the switching of described signal switching module 3 selection is converted to the optical fiber audio signal supporting optical fiber communication, and is sent to described signal output module 2 by described audio conversion module 6.

In the present embodiment, the audio signal conversion of described audio conversion module 6 can make this signal output module 2 obtain the optical fiber audio signal being applicable to output.

Further, the switching command that described command reception module 4 sends for receiving operator, and send to MCU control module 5 to encode this instruction, switching command after coding is sent to described signal switching module 3 by described MCU control module 5, controls described signal switching module 3 and switches the 4 tunnel audio signals selecting the input of optical fiber input terminal according to switching command.

Further, described command reception module 4 comprises LED light and button assembly, and described LED light is used to indicate the switching selection mode of the optical fiber audio signal that current described signal output module 2 exports.

Further, the fiber-optic signal of described digital audio switches adapter and also comprises power module, and described in described electric power source pair of module, signal switching module 3, described command reception module 4, described MCU control module 5, described audio conversion module 6 provide operating voltage.

Refer to Fig. 2, as can be seen from the figure described power module 7 comprises Power Entry Module 71 and power supply processing module 72; What wherein said Power Entry Module 71 inputted is direct current 5V voltage, and power supply processing module 72 for converting input voltage, and exports 3.3V direct voltage.

Refer to Fig. 3, Fig. 3 is the circuit connection diagram of described power module 7, wherein power module 7 comprises external direct current 5V supply socket, 5V power supply indicator LED1, is 3.3 volts of power converting circuits (main chip is U2) of direct current 3.3V by LDO power supply chip by 5V power conversion.

Refer to Fig. 4, Fig. 4 is signal input module 1 and Audio conversion modular circuit connection diagram.The input port of described signal input module 1 is CON10, CON9, CON7, CON8 socket, input port receives standard S/PDIF input signal respectively, and standard S/PDIF input signal is transferred to Audio conversion module, Audio conversion module main chip U4, model is CS8422, this built-in chip type input signal interface and audio conversion, it can change standard I according to control command into standard S/PDIF audio signal ²s digital audio format outputs to signal output module 2.

Refer to Fig. 5 A and Fig. 5 B, Fig. 5 A is the circuit connection diagram of the Radio reception section in command reception module 4, and CIR terminal is for connecting main control chip U6 in the figure, to the switching signal of U6 transmission and reception, wherein CIR1 element is infrared receiver component, can receive infrared control signal.Fig. 5 B is the circuit connection diagram of button assembly in command reception module 4, and in figure, button is SW3; This button assembly can have multiple; Button assembly is also arranged on product case, and user both can control the instruction of image analytic degree translative mode by button assembly.

Refer to Fig. 6, Fig. 6 is MCU control module 5 circuit connection diagram, and as can be seen from the figure, the master chip in this MCU control module 5 is above-mentioned U6, it is also connected with multiple LED light, the signal of what this LED light can indicate current demand signal to export is which input port.

Refer to Fig. 7, Fig. 7 is signal output module 2 circuit connection diagram; As can be seen from the figure standard S/PDIF signal is after the process of audio-frequency module U4 (CS8422) internal circuit, need to carry out converting I2S audio signal to standard S/PDIF signal again, be then transferred on playback equipment by signal output module 2.

The above; for the person of ordinary skill of the art; can make other various corresponding change and distortion according to the technical solution of the utility model and technical conceive, and all these change and be out of shape the protection range that all should belong to the utility model claim.

Claims

1. the fiber-optic signal of a digital audio switches adapter, comprise the signal input module of input optical fibre audio signal and the signal output module for output optical fibre audio signal, it is characterized in that, the fiber-optic signal of described digital audio switches adapter and also comprises: be connected to signal switching module between described signal input module and signal output module and audio conversion module in turn, the command reception module of reception operator switching command, link order receiver module carry out code conversion to switching command thus control the MCU control module of described signal switching module work; Described signal input module comprises optic fibre input end of input 4 tunnel audio signal, and described signal output module comprises fiber-optic output of output 1 tunnel audio signal; Described signal switching module is used for from described signal input module, selectively 1 tunnel audio signal in optic fibre input end is sent to described fiber-optic output and exports.

2. the fiber-optic signal of digital audio according to claim 1 switches adapter, and it is characterized in that, optic fibre input end of described 4 tunnel audio signals is input optical fibre audio signals independent of one another.

3. the fiber-optic signal of digital audio according to claim 1 switches adapter, it is characterized in that, described audio conversion module is used for the audio signal after the switching of described signal switching module being selected and is converted to the optical fiber audio signal supporting Optical Fiber Transmission, and this optical fiber audio signal is sent to described signal output module.

4. the fiber-optic signal of digital audio according to claim 1 switches adapter, it is characterized in that, the switching command that described command reception module sends for receiving operator, and send to MCU control module to encode this instruction, switching command after coding is sent to described signal switching module by described MCU control module, controls described signal switching module and switches the 4 tunnel audio signals selecting the input of optical fiber input terminal according to switching command.

5. the fiber-optic signal of the digital audio according to claim 1 or 4 switches adapter, it is characterized in that, described command reception module comprises LED light and button assembly, and described LED light is used to indicate the switching selection mode of the optical fiber audio signal that current described signal output module exports.

6. the fiber-optic signal of digital audio according to claim 1 switches adapter, it is characterized in that, the fiber-optic signal of described digital audio switches adapter and also comprises power module, and described in described electric power source pair of module, signal switching module, described command reception module, described MCU control module, described audio conversion module provide operating voltage.