CN207010883U - A kind of card insert type electronic game machine of band HDMI outputs - Google Patents

Abstract

The utility model provides a kind of card insert type electronic game machine of band HDMI outputs, including card insert type video game machine host；Also include HDMI image processors, described card insert type video game machine host output digital image data-signal, the Same Name of Ends of line synchronising signal, frame synchronizing signal signal, clock signal and simulated audio signal respectively with HDMI image processors are connected；To the digital image data signal of input in HDMI image processors, line synchronising signal, frame synchronizing signal signal and clock signal enter row decoding, simulated audio signal is AD converted to form digital audio and video signals, then coding forms HDMI signal and exported from the HDMI standard interface for being arranged on card insert type electronic game machine.The utility model have selected a HDMI image processor and realize the output of card insert type electronic game machine and the switching of HDMI, realizes card insert type electronic game machine and connects television set from HDMI.

Description

A kind of card insert type electronic game machine of band HDMI outputs

Technical field

Electronic game machine interface field is the utility model is related to, more particularly to a kind of card insert type TV trip of band HDMI outputs Gaming machine.

Background technology

Card insert type electronic game machine, frequently also referred to simply as electronic game machine.Electronic game machine is computer technology and TV A kind of advanced electronic entertainment device that technology combines.Domestic type electronic game machine price is low, and image, sound accompaniment and method for gaming all compare It is relatively simple, it is used as display unit by the use of television set.At present, electronic game machine utilizes AV, S terminal etc. by analog image and voice signal It is sent to television set.AV (Audio＆Video) interface is also known as（RCA）, it is lotus flower joint that people, which are also referred to as it,.It has been divided into 3 lines, point It is not：COBBAIF（Red and white wire, form left and right acoustic channels）And video interface（Yellow）.Due to AV output be still will be bright The vision signal that mix with colourity is spent, so remaining unchanged needs display device progress brightness and color-separated, and decode could be into Picture.Such way can necessarily cause damage to image quality, so the image quality of AV interfaces still can not be satisfactory, although AV interfaces The separated transmission of Voice ＆ Video is realized, caused by audio ＆ video being avoided to interfere with each other in terms of the imaging under image quality Drop.

Card insert type electronic game machine typically have 8 RGB data lines D0, D1, D2, D3, D4, D5, D6, D7 and CLK, HSYNC、VSYNC.At present, card TV set game machine is exported with AV.

SD multimedia interface（English：High Definition Multimedia Interface, HDMI）It is a kind of Digitized video/COBBAIF technology, it is the tailored version digital interface for being adapted to image transmission, it can transmit audio and shadow simultaneously As signal, the maximum data transmission speed is 2.25GB/s.HDMI is digital fine definition without overcompression, multichannel The digital interface of audio and intelligent format and control command data.

At present, card insert type game machine does not have HDMI, it is impossible to is connected by HDMI with television set, utilizes television set Show the image of SD.

Utility model content

The utility model, which is directed between current card insert type electronic game machine and television set, only has the simulation such as AV or S terminals defeated Go out terminal to be connected, the deficiency that the image quality played on television set still can not be satisfactory, there is provided a kind of plug-in card of band HDMI outputs Formula electronic game machine.

The utility model is that technical scheme is used by realizing its purpose：A kind of card insert type TV trip of band HDMI outputs Gaming machine, including card insert type video game machine host；Described card insert type video game machine host output digital image data signal, Line synchronising signal, frame synchronizing signal, clock signal and simulated audio signal；Also include HDMI image processors, described plug-in card Formula video game machine host output digital image data-signal, line synchronising signal, frame synchronizing signal signal, clock signal and simulation Same Name of Ends of the audio signal respectively with described HDMI image processors is connected；To the numeral of input in HDMI image processors Viewdata signal, line synchronising signal, frame synchronizing signal signal and clock signal enter row decoding, and AD is carried out to simulated audio signal Conversion forms digital audio and video signals, and then coding forms HDMI signal and marked from the HDMI for being arranged on card insert type electronic game machine Quasi- interface output.

The utility model have selected a HDMI image processor and realize the output of card insert type electronic game machine and HDMI Switching, realize card insert type electronic game machine and connect television set from HDMI.

The utility model is described in more detail with reference to specific embodiment.

Brief description of the drawings

Fig. 1 is 1 overall block diagram of the utility model embodiment.

Fig. 2 is the utility model complete machine schematic diagram.

Fig. 3 is card insert type electronic game machine data image signal interface in the utility model.

Fig. 4 is image processor analogue audio frequency input interface circuit in the utility model.

Fig. 5 is power control circuit in the utility model.

Embodiment

Embodiment Fig. 1, the present embodiment are a kind of card insert type electronic game machines of band HDMI outputs, and the game machine includes one Card insert type game host and HDMI Digital Image Processors, HDMI Digital Image Processors export card insert type game host Simulated audio signal digitlization, and to the digital audio and video signals after digitlization and 8 bit digital vision signal line synchronising signals HSYNC, frame synchronizing signal VHYNC and clock signal clk enter row format conversion together, form HDMI code streams and are inputted by HDMI sockets To television set.

Card insert type game host has digital picture and simulated audio signal AUDIO delivery outlet, digital output signal line BT_ D0, BT_D1, BT_D2, BT_D3, BT_D4, BT_D5, BT_D6, BT_D7, as shown in figure 3, there is line synchronising signal BT_ in addition HS0 (HSYNC), frame synchronizing signal BT_VSO (VHYNC) signals and clock signal BT_CLK (CLK).Therefore, used in practice When, it can be directly inputted in HDMI image processors, be connected with the pin of the same name of HDMI image processors, simply scheme in HDMI As using different decoded modes to obtain digital video signal in processor, then encoded, comply with HDMI rule Model is output in television set from HDMI.And the audio signal of analog signal needs to carry out in HDMI Digital Image Processors After AD conversion, reprocessing.In the present embodiment, HDMI image processors use the model GT208 of Ling Yang products chip.Should There is two groups of input interfaces, including the digital picture data signal of 8, simulated audio signal, line synchronising signal in GT208 chips HSYNC, frame synchronizing signal VHYNC and clock signal clk input pin, in GT208 chips, simulated audio signal is carried out Digitlization, to digital image digital signal, digitized simulated audio signal, line synchronising signal HSYNC, frame synchronizing signal VHYNC and clock signal clk enter row format conversion, form HDMI code streams, are exported from HDMI sockets, electricity is linked into by cable Depending in corresponding HDMI plugs in machine.

In the present embodiment, card insert type electronic game machine HPI form includes 72 needle tray mouths, 60 needle tray mouths, 64 needle trays Mouth, 62 needle tray mouths, as needed can be compatible with the interface card game host of different-format.

In the present embodiment, in order to adapt to the demand of different user, HDMI output modes set 2 kinds, first, by stirring Switch to consent tacitly to one of which：It is 16 respectively：9 or 4：3 patterns.It can meet in the image effect that television image shows Different user's requests.

In the present embodiment, simulated audio signal input is AUDIO_IN, is connected in HDMI image processors and enters line number Word, then exported by HDMI DAB pin.When entering in HDMI Digital Image Processing, have as shown in Figure 4 Interface circuit.

The interface circuit includes input capacitance C30, is 1uF electric capacity, and electric capacity C30 is used to isolate in simulated audio signal Direct current signal, then after resistance R31 and resistance R32 partial pressures, the electric capacity C32 and electric capacity C33 couplings by series connection are defeated The signal MICP gone out is connected to image processor chip GT208 audio signal input end, that is, MICP pins, as audio mould Number conversion inputs；In order to be handled in the image processor, analog-converted reference signal MIC_BIAS is from electric capacity C32 Lead-out wire draws signal by external capacitor R33 between electric capacity C33, after external capacitor C35 and electric capacity C34 earths Be exactly reference signal MIC_BIAS.VSS_ADC is the ground wire of analog signal.

At present, realize that the Voice ＆ Video data signal that would be compatible with different card insert type electronic game machine output is converted into Typically using the Ling Yang model GT208 to produce chip, it has 128 pins, adapted to the image processor of HDMI signals The interface of the data wire of a variety of card insert type electronic game machines, and row decoding can be entered to the RGB data signals received respectively, to mould Intend digitized audio frequency, then the normal data of coding generation HDMI.

In the present embodiment, in order to realize that image processor HDMI outputs are not all card insert type game machine pictures, therefore, use Voltage start starts image processor work first, then has image processor provide control signal, control card insert type game The power supply of machine.So, image is realized not lose.Be exactly as shown in Figure 5 power supply schematic diagram, have in figure triode Q1 with Two switching tubes by image processor control of FET U16 realize that the power-up to electronic game machine module controls, TV trip Gaming machine power supply supply side enters power-supply controller of electric from POWER_IN interfaces, then, is controlled in image processor control signal PWR_CON Under system, it is that whether this switch turns on and determine by triode Q2 that whether this switch of FET U12, which turns on, works as image procossing When device control signal PWR_CON is effective, that is to say, that when it is high level, Q2 conductings, by the resistance R26 and electricity of series winding ground connection R25 partial pressures are hindered, FET U12 grid g voltages are less than source S, FET conducting.So, FET U12 source, Drain electrode conducting, the power supply supply side POWER_IN of card insert type electronic game machine and the working power POWER_OUT of electronic game machine Turn on, card insert type electronic game machine obtains electricity and begins to work.

In order to more intuitively describe the overall work of the card insert type game machine with HDMI outputs.Fig. 2 is that overall input is defeated Go out block diagram.In figure, MICRO is outlet；16:9/4:3 change-over switches；AUDIO sound exports；VIDEO video frequency outputs； HDMI SDs export；Plug-in card neck；Switch；Reset；Main handle interface；Auxiliary-handle interface.Card insert type game machine is to remain original Some plug-in card styles；AV output functions, add HDMI SD functions.

Claims (3)

1. a kind of card insert type electronic game machine of band HDMI outputs, including card insert type video game machine host；Described card insert type Video game machine host output digital image data signal, line synchronising signal, frame synchronizing signal, clock signal and analogue audio frequency letter Number；It is characterized in that：Also include HDMI image processors,

Described card insert type video game machine host output digital image data-signal, line synchronising signal, frame synchronizing signal signal, The Same Name of Ends of clock signal and simulated audio signal respectively with described HDMI image processors is connected；In HDMI image processors In row decoding is entered to the digital image data signal of input, line synchronising signal, frame synchronizing signal signal and clock signal, to simulation Audio signal is AD converted to form digital audio and video signals, and then coding forms HDMI signal from being arranged on card insert type TV The HDMI standard interface output of game machine.

2. the card insert type electronic game machine of band HDMI outputs according to claim 1, it is characterised in that：Described card insert type Electronic game machine HPI form includes 72 needle tray mouths, 60 needle tray mouths, 64 needle tray mouths, 62 needle tray mouths.

3. the card insert type electronic game machine of band HDMI outputs according to claim 2, it is characterised in that：Described HDMI Image processor uses the model GT208 of Ling Yang products chip.