CN202309903U

CN202309903U - HDMI signal switching device

Info

Publication number: CN202309903U
Application number: CN2011204350646U
Authority: CN
Inventors: 于晓亮
Original assignee: SHENZHEN EISEN VAIL TECHNOLOGY Co Ltd
Current assignee: SHENZHEN EISEN VAIL TECHNOLOGY Co Ltd
Priority date: 2011-11-04
Filing date: 2011-11-04
Publication date: 2012-07-04
Anticipated expiration: 2021-11-04

Abstract

The present utility model discloses an HDMI signal switching device. The device comprises at least two paths of signal input modules for inputting audio and video signals; an audio and video processing module for connecting with the signal input module, switching the audio and video signals and choosing one signal to output; a signal output module for connecting with the audio and video processing module and outputting the audio and video signals; an instruction receiving module for receiving switching instructions of handlers; and a switching control module for connecting with the instruction receiving module, realizing coding conversion of the switching instructions, and controlling the audio and video processing module to work according to the switching instructions. By adopting the device, multi-paths of HDMI signals can be switched, one path can be chosen to be outputted, display equipment can be shared by a plurality of audio and video play equipment, audio signals can be individually outputted, HEC function is supported, Internet-based HDMI equipment and other HDMI equipment are permitted for sharing Internet access without connecting with another Ethernet wire. Thus audio-video equipment can be used in a high-efficient and energy-saving way conveniently and comfortably.

Description

A kind of HDMI signal shifter

Technical field

The utility model relates to signal shifter, relates in particular to a kind of multichannel HDMI signal facility is switched and transmits the HDMI signal shifter of selecting one tunnel output.

Background technology

There is multiple playing audio/video based on the HDMI signal in family or market now; These HDMI signal output apparatus need be wired on the display device of compatible high-definition signal respectively; And display device does not have enough HDMI signaling interfaces; Can't insert many HDMI signal output apparatus simultaneously, bring very big inconvenience to use.Market is needed badly a kind of to multichannel HDMI signalling channel enforcement switching, selects the switch of one tunnel output.

The utility model content

The utility model is the problems referred to above that will solve prior art, proposes a kind of multichannel HDMI signalling channel implement to be switched, and selects the switch of one tunnel output.

For solving the problems of the technologies described above; The technical scheme that the utility model proposes is: a kind of HDMI signal shifter, thereby it comprise two-way input audio-video signal at least signal input module, connect signal input module and audio-video signal switched and select the audio frequency and video processing module of an output, connect the audio frequency and video processing module and switching command is carried out code conversion control audio frequency and video processing module by the switching controls module of switching command work and to the power module of each module for power supply in order to the signal output module of output audio-video signal, the command reception module that receives operator's switching command, link order receiver module.

Above-mentioned audio frequency and video processing module connects an audio frequency output module.

Above-mentioned audio frequency and video processing module connects a network interface.

Above-mentioned command reception module can be button assembly.

Above-mentioned command reception module can be remote control signal receiver.

Above-mentioned audio-video signal is the HDMI signal.

Compared with prior art, the utility model can be implemented to switch to multichannel HDMI signal, selects one tunnel output, realizes the display device of the shared compatible high-definition signal of a plurality of playing audio/videos.Any HDMI signal input channel can independently be exported through optical fiber realization audio frequency; Support 3D; Support the ARC function: directly receive at HDTV under the situation of Voice & Video content; HDTV directly is sent on the A/V power amplifier receiver through HDMI bundle of lines audio frequency, need not an other cable.Support the HEC function: allow to share the Internet with other HDMI equipment and insert, need not to connect in addition an ethernet line based on the HDMI equipment of the Internet.It is more convenient to make audio-visual devices use, more comfortable, more efficient, more energy-conservation.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is made detailed explanation, wherein:

Fig. 1 is the theory diagram of the utility model preferred embodiment;

Fig. 2 is the circuit diagram of the utility model preferred embodiment audio frequency output module;

Fig. 3 is the circuit diagram of the utility model preferred embodiment power module;

Fig. 4 is the circuit diagram of the utility model preferred embodiment signal input module;

Fig. 5 is the circuit diagram of the utility model preferred embodiment audio frequency and video processing module;

Fig. 6 is the circuit diagram of the utility model preferred embodiment command reception module and switching controls module;

Fig. 7 is the utility model preferred embodiment Network Interface Module;

Fig. 8 is the circuit diagram of the utility model preferred embodiment signal output module.

Embodiment

The utility model discloses a kind of HDMI signal shifter; Referring to Fig. 1, thus it comprise the input of two-way at least audio-video signal signal input module, connect signal input module and audio-video signal switched and select the audio frequency and video processing module of an output, connect the audio frequency and video processing module and switching command is carried out code conversion control audio frequency and video processing module by the switching controls module of switching command work and to the power module of each module for power supply in order to the signal output module of output audio-video signal, the command reception module that receives operator's switching command, link order receiver module.

Referring to the circuit diagram of power module in the preferred embodiment shown in Fig. 3, power module comprises external direct current 5V supply socket, 5V power supply indicator LED1, the 5V power conversion is 3.3 volts of power converting circuits (main chip is U1) of direct current 3.3V, is 1.8 volts of power converting circuits (main chip is U2) of direct current 1.8V with the 5V power conversion.

Circuit diagram referring to the preferred embodiment signal input module shown in Fig. 4; Signal input module has independent of each other 4 the tunnel; Input port is respectively J2, J 3, J 4, J5, and these ports receive 4 road HDMI input signals respectively, and the HDMI input signal is transferred to the audio frequency and video processing module.The circuit of audio frequency and video processing module is referring to Fig. 5, its main chip IC1 (model is EP94R3K), and this chip is selected an output according to control command to 4 road HDMI input signals.What link to each other with EP94R3K is signal output module, and referring to Fig. 8, output interface is J6, and J6 is in order to connect display device.Fig. 6 shows the circuit diagram of preferred embodiment command reception module and switching controls module; The main chip IC2 of switching controls module (model is EPF025A); The command reception module comprises button assembly and the remote control signal receiver that is connected with the IC2 chip; Button assembly is installed on the switch casing, and remote control receives a CIR1 and also is installed on the switch casing.The user both can also can pass through the remote controller inputting switching command through button assembly, decision gating road HDMI input signal.The audio frequency and video processing module connects an audio frequency output module; Referring to Fig. 2, the utility model is supported the ARC function, directly receives at HDTV under the situation of Voice & Video content; HDTV directly is sent on the A/V power amplifier receiver through HDMI bundle of lines audio frequency, need not an other cable.The audio frequency and video processing module connects a network interface, and referring to Fig. 7, the utility model is supported the HEC function, adopts HDMI 1.4 specifications, in HDMI connects, has increased the two-way communication data channel of a high speed.This passage of equipment utilization that comprises this function receives and transmits data via per second 100Mb Ethernet, can be in any IP-based application scheme plug and play.HDMI Ethernet passage can let the HDMI equipment of integrated internet function, need not to use other Ethernet cables, can share its Internet line with other HDMI equipment, also provides HDMI equipment room content shared required interconnection platform simultaneously.Permission is shared the Internet based on the HDMI equipment of the Internet with other HDMI equipment and is inserted, and need not to connect in addition an ethernet line.The utility model is also supported 3D.

Above embodiment is merely and illustrates, non-providing constraints.Any spirit and category that does not break away from the application, and to its equivalent modifications of carrying out or change, all should be contained among the application's the claim scope.

Claims

1. HDMI signal shifter is characterized in that: thus comprise two-way input audio-video signal at least signal input module, connect signal input module and audio-video signal switched and select the audio frequency and video processing module of an output, connect the audio frequency and video processing module and switching command is carried out code conversion control audio frequency and video processing module by the switching controls module of switching command work and to the power module of each module for power supply in order to the signal output module of output audio-video signal, the command reception module that receives operator's switching command, link order receiver module.

2. HDMI signal shifter as claimed in claim 1 is characterized in that: said audio frequency and video processing module connects an audio frequency output module.

3. HDMI signal shifter as claimed in claim 1 is characterized in that: said audio frequency and video processing module connects a network interface.

4. HDMI signal shifter as claimed in claim 1 is characterized in that: said command reception module is a button assembly.

5. HDMI signal shifter as claimed in claim 1 is characterized in that: said command reception module is a remote control signal receiver.

6. like each described HDMI signal shifter of claim 1 to 5, it is characterized in that: said audio-video signal is the HDMI signal.