CN204761570U

CN204761570U - Hdmi signal matrix adapter

Info

Publication number: CN204761570U
Application number: CN201520395895.3U
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: 2015-11-11
Anticipated expiration: 2025-06-10

Abstract

The utility model provides a HDMI signal matrix adapter include signal input module, signal output module, the matrix of being connected with the signal input module in proper order switch module, sound video processing module and the signal output module, instruction receiving module receives control command from MCU control module, the signal input module includes 6 way HDMI signal input, 2 way HDMI signals of signal output module output, the matrix switches the module and is used for following in the signal input module selectively with HDMI incoming signal send to video processing module. This HDMI signal matrix adapter can couple together a plurality of high definition signal sources and a plurality of high definition signals end simultaneously, exports respectively to possess standard HDMI interface display device for of the same kind or multichannel.

Description

HDMI signal matrix adapter

Technical field

The utility model relates to signal shifter field, particularly relates to the HDMI signal matrix adapter that multichannel HDMI input signal switches to multichannel HDMI to output signal.

Background technology

Along with the development of video display technology, ultra high-definition has been a kind of pursuit.In addition, when demonstrating multimedia audio-visual equipment, sometimes playing audio/video multichannel HDMI signal being exported to multichannel HDMI signal is needed, 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 matrix switcher switching to multichannel HDMI to output signal to multichannel HDMI input signal is needed in market badly.

Utility model content

The technical problems to be solved in the utility model is: provide a kind of HDMI signal matrix adapter 6 road HDMI data-signal inputs being transferred to 2 road HDMI data-signals and export.

For achieving the above object, the utility model provides a kind of HDMI signal matrix adapter, comprises the signal input module of input HDMI digital signal and the signal output module for exporting HDMI digital signal.

Wherein, described HDMI signal switching adapter also comprises: the Inverse problem module be connected with described signal input module successively, audio frequency and video module and described signal output module, described Inverse problem module and instruction receiver module connects, and described command reception module receives control command from MCU control module; Described MCU control module controls described signal output module by distributing sending module; Described signal input module comprises 4 road HDMI signal inputs, and described signal output module exports 1 road HDMI signal; Described Inverse problem module is used for from described signal input module, selectively HDMI input signal being sent to described video processing module and being exported by described signal output module.

Further, the data that described signal output module receives comprise from the control signal of described distribution sending module reception and from described audio frequency and video module audio reception and vision signal, and described audio signal is synchronous with vision signal.

Further, described Inverse problem module comprises the DHCP processing module be connected with MCU control module, and described DHCP processing module is used for the control command encoding and decoding that send described MCU control module and is sent to audio frequency and video module.

Further, described HDMI signal matrix adapter also comprises power module, and described in described electric power source pair of module, Inverse problem module, described command reception module, described MCU control module, described audio-frequency module and described video processing module provide operating voltage; Described power module output voltage comprises 3.3V and 1.8V.

Further, described HDMI signal matrix adapter also comprises remote control module, and described remote control module is used for wirelessly to described MCU control module sending controling instruction.

Further, described audio frequency and video module comprises SiI9575 or SiI9573 model chip.

Further, described remote control module comprises the infrared remote receiver being connected to MCU control module and the remote controller described infrared remote receiver being sent to wireless control signal, user passes through described remote controller to described infrared remote receiver sending controling instruction, the HDMI input signal that described control command exports for determining described video processing module.

The beneficial effects of the utility model:

Multiple high-definition signal source and multiple high-definition signal end can couple together by the HDMI signal matrix adapter that the utility model provides simultaneously, export to one or more respectively and possess standard HDMI display device.

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 the utility model HDMI signal matrix adaptor module schematic diagram;

Fig. 2 is the utility model Inverse problem model calling schematic diagram;

Fig. 3 is the utility model power module schematic diagram;

Fig. 4 is the utility model power module circuitry connection diagram;

Fig. 5 is the utility model signal input module circuit diagram;

Fig. 6 is the partial circuit connection diagram of the utility model audio frequency and video module sound intermediate frequency data processing;

Fig. 7 A to Fig. 7 C is the utility model audio frequency and video module section circuit connection diagram;

Fig. 8 A is the utility model MCU control module circuit connection diagram;

Fig. 8 B is the utility model command reception modular circuit connection diagram;

Fig. 9 is the utility model signal output module circuit connection diagram;

Figure 10 is the circuit connection diagram of the utility model LED light.

Drawing reference numeral:

1, signal input module; 2, signal output module; 3, Inverse problem module; 31, DHCP processing module; 4, command reception module; 5, MCU control module; 6, audio frequency and video module; 7, remote control module; 8, power module; 81, Power Entry Module; 82, power supply processing module; 9, sending module is distributed.

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 HDMI signal matrix adapter.

Described HDMI signal matrix adapter comprises signal input module 1, signal output module 2, Inverse problem module 3, command reception module 4, MCU control module 5, audio frequency and video processing module 6, distributes sending module 9.

Wherein, described signal input module 1 is for inputting HDMI digital signal; Described signal output module 2 is for exporting HDMI digital signal.

Wherein, described signal input module 1 is connection matrix handover module 3, audio frequency and video processing module 6 and described signal output module 2 successively, and meanwhile, described Inverse problem module 3 is connected with described command reception module 4; Described distribution sending module 9 is connected between described MCU control module 5 and signal output module 2.

Wherein, described signal input module 1 comprises 6 road HDMI signal inputs, and described signal output module 2 output is 2 road HDMI signals outputs; Described instruction control module receives control command from described MCU control module 5, and sends it to described Inverse problem module 3; Described Inverse problem module 3 selects 2 tunnels to export described audio frequency and video module 6 to according to control command from HDMI input signal described in 6 tunnels; Described signal output module 2 receives the control command of described MCU control module 4 by described distribution sending module, also receive the HDMI audio signal from described audio frequency and video module 6 and HDMI video signal simultaneously, and the audio signal of reception and vision signal are sent to external display device.

Wherein, described HDMI audio number and described HDMI video signal synchronized with each other.

In the present embodiment, this HDMI signal matrix adapter is loaded with 6 road HDMI input terminals, by the circuit module of inside, the HDMI audio signal on wherein wantonly 2 tunnels and video signal transmission are held to TV, greatly facilitate actual use, reduce the number of times of TV end plug HDMI port, improve the life-span that TV holds product.

In the present embodiment, the synchronous when audio, video data that synchronous HDMI audio signal and HDMI video signal can ensure to output to TV end is play.

Wherein, further, described Inverse problem module 3 comprises the DHCP processing module 41 be connected with MCU control module 5, and described DHCP processing module 41 is for the control command encoding and decoding that send described MCU control module 5 and be sent to described Inverse problem module 3 and described signal output module 2.

Refer to Fig. 2, described DHCP module is for receiving from six tunnel control signals of MCU control module 5 and the control signal from external data end RX1_DDC, RX2_DDC, RX3_DDC, RX4_DDC, RX5_DDC, RX6_DDC; This DHCP control module is sent to described Inverse problem module 3 after carrying out encoding and decoding to the control signal received, and controls the final HDMI signal exported of described Inverse problem module 3.

In the present embodiment, comprise two kinds of modes to the control mode of described Inverse problem module 3, one is that MCU controls, and another kind is that external signal controls.

Wherein, HDMI2.0 communication protocol supported by HDMI signal matrix adapter of the present utility model.

Further, described HDMI signal matrix adapter also comprises power module 8, and described power module 8 provides operating voltage to described Inverse problem module 3, described command reception module 4, described MCU control module 5, described audio-frequency module 6 and described video processing module 7; Described power module 8 output voltage comprises 3.3V and 1.8V.

Refer to Fig. 3, this figure is power module 8 schematic diagram in the utility model, and as can be seen from the figure described power module 8 comprises Power Entry Module 81 and power supply processing module 82; What wherein said Power Entry Module 81 inputted is direct current 5V voltage, and the input of voltage is provided with LED light, and this LED light label is in the drawings LED5.

Refer to Fig. 4, described Fig. 4 is the circuit connection diagram of the utility model power module 8, in the present embodiment, described power supply processing module 82 is that the 5V direct voltage of input is converted to 3.3V voltage and 1.8V voltage, is then powered into other circuit modules in the utility model by the voltage after changing.In the drawings, the lead-out terminal of 3.3V voltage is the lead-out terminal of VCC33,1.8V voltage is VCC1V2; In a power, the master chip adopted when being 1.2V and 3.3V by 5V voltage transitions is SY8009B.

Refer to Fig. 5, this Fig. 5 is arbitrary road input circuit connection layout in this signal input module 1, and in the present embodiment, described No. 6 input circuits transmit data independently of one another.In this road input circuit, input terminal is CN1, and this port CN1 receives standard HDMI input signal, and HDMI input signal is transferred to Inverse problem module 3.

Referring to Fig. 6, is the circuit diagram of audio-video signal module neutral body sound channel and S/PDIF audio signal; .

Refer to Fig. 7 A to 7C, Fig. 7 is the partial circuit connection diagram of audio frequency and video processing module, and its master chip adopts Sil9575 or Sil9573 chip.Figure comprises an external optical fiber interface, and this interface is S/PDIF signaling interface, and audio signal is exported by this interface, and external digital audio-power amplifier, this voicefrequency circuit also comprises an earphone interface J1 simultaneously.

Refer to Fig. 8 A, Fig. 8 A is MCU control module 5 circuit diagram, and the model of its main chip U25 is NUC122SD2NA chip, and this MCU control module 5 passes through I ²the initialization of each chip of C bus marco and the change of state machine thereof, complete the reading of EDID and the verifying work of HDCP.

Refer to Fig. 8 B, the utility model Inverse problem module 3 circuit connection diagram.Described Inverse problem module 3 also comprises and I ²the button assembly that C chip connects, as shown in Figure 10, wherein Figure 10 is the circuit diagram of remote keying LED light to this button assembly.This button assembly comprises SW1, SW2, SW3.Remote control signal receiver comprises the CIR1 in figure, and user can send control command by button assembly to described MCU control module 5, also can control lighting and extinguishing of LED simultaneously.。

Wherein CIR1 infrared remote receiver is remote control reception terminal, and remote control reception head CIR1 is also arranged on switch casing.User can pass through remote controller inputting switching command, determines to select certain 2 road HDMI input signal port to export.

Refer to Fig. 9, Fig. 9 is the circuit connection diagram of the utility model signal output module.Only merely illustrate the circuit structure that 1 road signal exports in the drawings, the circuit structure that another road signal exports is identical with the annexation represented in figure.Wherein, signal is exported by TXPORT1.

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. a HDMI signal matrix adapter, comprise the signal input module of input HDMI digital signal and the signal output module for exporting HDMI digital signal, it is characterized in that, described HDMI signal switching adapter also comprises: the Inverse problem module be connected with described signal input module successively, audio frequency and video module and described signal output module, described Inverse problem module and instruction receiver module connects, and described command reception module receives control command from MCU control module; Described MCU control module controls described signal output module by distributing sending module; Described signal input module comprises 4 road HDMI signal inputs, and described signal output module exports 1 road HDMI signal; Described Inverse problem module is used for from described signal input module, selectively HDMI input signal being sent to described video processing module and being exported by described signal output module.

2. HDMI signal matrix adapter according to claim 1, it is characterized in that, the data that described signal output module receives comprise from the control signal of described distribution sending module reception and from described audio frequency and video module audio reception and vision signal, and described audio signal is synchronous with vision signal.

3. HDMI signal matrix adapter according to claim 1, it is characterized in that, described Inverse problem module comprises the DHCP processing module be connected with MCU control module, and described DHCP processing module is used for the control command encoding and decoding that send described MCU control module and is sent to described audio frequency and video module.

4. HDMI signal matrix adapter according to claim 1, it is characterized in that, described HDMI signal matrix adapter also comprises power module, and described in described electric power source pair of module, Inverse problem module, described command reception module, described MCU control module, described audio-frequency module and described video processing module provide operating voltage; Described power module output voltage comprises 3.3V and 1.8V.

5. the HDMI signal matrix adapter according to any one of Claims 1-4, is characterized in that, described HDMI signal matrix adapter also comprises remote control module, and described remote control module is used for wirelessly to described MCU control module sending controling instruction.

6. HDMI signal matrix adapter according to claim 1, is characterized in that, described audio frequency and video module comprises SiI9575 or SiI9573 model chip.

7. HDMI signal matrix adapter according to claim 5, it is characterized in that, described remote control module comprises the infrared remote receiver being connected to MCU control module and the remote controller described infrared remote receiver being sent to wireless control signal, user passes through described remote controller to described infrared remote receiver sending controling instruction, the HDMI input signal that described control command exports for determining described video processing module.