Intelligent song ordering machine and output circuit thereof

Abstract

The utility model discloses an intelligent song ordering machine and an output circuit thereof, relates to the technical field of equipment circuit output, comprises a main control unit and a plurality of functional units respectively connected with the main control unit, and is characterized in that the output circuit comprises a composite video broadcast signal (CVBS) output circuit, a video graphics array (VGA) output circuit and a high-definition multimedia interface (HDMI) output circuit. According to the utility model, the android master control can directly carry out either of output HDMI video signals and output composite video signals of the CVBS, and also can carry out either of output LVDS signals and VGA signals, thereby realizing simultaneous output of the two video signals, giving full play to the advantages of the master control chip, successfully realizing simultaneous output of the two videos, improving the video quality, and reducing the cost. Therefore, the types of the connectable displays are greatly expanded, and different contents can be displayed on double screens in this way, so that the operation interface and the playing interface can realize split-screen playing, and better and more convenient use experience is brought to users.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment circuit output, in particular to an intelligent song requesting machine and an output circuit thereof. Background Art

[0002] Among the many current karaoke machines, it is common that most of them only have a single HDMI output interface. This design results in a relatively single type of display that can be connected, lacking more flexibility in selection. Moreover, this situation also makes it impossible to effectively separate the operation interface from the playback interface for display, which brings many inconveniences in the actual product use process and greatly limits the user experience and operational convenience. Utility Model Content

[0003] The purpose of the utility model is to provide an intelligent song requesting machine and an output circuit thereof to solve at least any one of the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: an intelligent song ordering machine and its output circuit, comprising the song ordering machine including a main control unit, a plurality of functional units respectively connected to the main control unit, the output circuit including a CVBS output circuit, a VGA output circuit and an HDMI output circuit;

[0005] The VGA output circuit and the CVBS output circuit can output simultaneously, and the CVBS output circuit and the HDMI output circuit can output simultaneously;

[0006] The CVBS output circuit, the VGA output circuit and the HDMI output circuit are all connected to the main control unit.

[0007] Preferably, the main control unit includes a main control chip, and the main control chip adopts A / / WinnerA40I chip.

[0008] Preferably, the VGA output circuit includes a VGA output chip, the RST pin of the VGA output chip is connected to LCD-VSYNC, the INT pin of the VGA output chip is connected to LCD-HSYNC, the SDA pin of the VGA output chip is connected to GND, the SCL pin of the VGA output chip is connected to VGA-G, the GND pin of the VGA output chip is connected to VGA-B, and the VCC pin of the VGA output chip is connected to VGA-R.

[0009] Preferably, the CVBS output circuit includes a CVBS output chip, a first pin of the CVBS output chip is connected to CVBS, ESD9B5V-2 / TR and ESD9B5V-2 / TR, the ESD9B5V-2 / TR and the ESD9B5V-2 / TR are connected, the ESD9B5V-2 / TR is connected to GND, a second pin of the CVBS output chip is connected to GND, a third pin of the CVBS output chip is connected to HPLOUT, a fourth pin of the CVBS output chip is connected to GND, and a fifth pin of the CVBS output chip is connected to HPROUT.

[0010] Preferably, the HDMI output circuit includes a first protection chip, a second protection chip and an output chip, the D2P pin of the output chip and the D0P pin of the output chip are respectively connected to the OUT1 pin of the first protection chip and the second protection chip, the D2N pin of the output chip and the D0N pin of the output chip are respectively connected to the OUT2 pin of the first protection chip and the second protection chip, the GND1 pin and the GND2 pin of the first protection chip and the second protection chip are both grounded, the D1P pin of the output chip and the CLKP pin of the output chip are respectively connected to the first protection chip and the second protection chip. The output chip is connected to the OUT3 pin of the first protection chip and the second protection chip, the D1N pin of the output chip and the CLKN pin of the output chip are connected to the OUT4 pins of the first protection chip and the second protection chip, the G_D2 pin, G_D1 pin, G_D0 pin, G_CLK pin, G_DDC / CEC pin and 5V pin of the output chip are all grounded, the CEC pin of the output chip is connected to HDM-HCEC, the SCL pin of the output chip is connected to HSCL, the SDA pin of the output chip is connected to HSDA, the HOT_PLUG_DET pin of the output chip is connected to HHPD, the IN1 pins of the first protection chip and the second protection chip are connected to HTX2P and HTX0P respectively, the IN2 pins of the first protection chip and the second protection chip are connected to HTX2N and HTX0N respectively, the IN3 pins of the first protection chip and the second protection chip are connected to HTX1P and HTXCP respectively, and the IN4 pins of the first protection chip and the second protection chip are connected to HTX1N and HTXCN respectively.

[0011] Preferably, the HDMI output circuit further includes ESD6, ESD7, ESD8 and ESD9, the ESD6 is connected to the HOT_PLUG_DET pin of the output chip, the ESD7 is connected to the SDA pin of the output chip, the ESD8 is connected to the CEC pin of the output chip, and the ESD9 is connected to the SCL pin of the output chip.

[0012] Preferably, the multiple functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module and a WIFI / Bluetooth module, and each of the functional modules is respectively connected to the main control unit to realize the corresponding function of the mobile terminal.

[0013] Preferably, the power management chip is connected to the main control unit to supply power to the main control unit, the output circuit and each of the functional units.

[0014] Preferably, it includes a main control unit and a plurality of functional units respectively connected to the main control unit and an output circuit of the above-mentioned intelligent song requesting machine.

[0015] The beneficial effects of the utility model are as follows:

[0016] In the present invention, the Android main control can directly choose between outputting HDMI video signals and CVBS composite video signals, and can also choose between outputting CVBS signals and VGA signals, thereby realizing the simultaneous output of two video signals. The present invention can give full play to the advantages of the main control chip and successfully achieve the simultaneous output of two videos, which greatly expands the types of connectable displays. Moreover, in this way, different contents can be displayed on two screens, so that the operation interface and the playback interface can realize split-screen playback, which effectively improves the convenience and flexibility of operation, brings users a better and more convenient use experience, and allows users to perform various operations more efficiently during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall circuit structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the CVBS output circuit of the utility model;

[0019] Figure 3 This is a schematic diagram of the VGA output circuit structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the HDMI output circuit structure of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4The intelligent song-ordering machine and its output circuit shown in the figure include a main control unit, a plurality of functional units respectively connected to the main control unit, the output circuit includes a CVBS output circuit, a VGA output circuit and an HDMI output circuit; the VGA output circuit and the CVBS output circuit can output at the same time, and the CVBS output circuit and the HDMI output circuit can output at the same time; the CVBS output circuit, the VGA output and the HDMI output circuit are all connected to the main control unit, the main control unit includes a main control chip, the main control chip adopts A / / WinnerA40I chip, the VGA output circuit includes a VGA output chip, and the RST pin of the VGA output chip is connected to LCD-V SYNC, the INT pin of the VGA output chip is connected to LCD-HSYNC, the SDA pin of the VGA output chip is connected to GND, the SCL pin of the VGA output chip is connected to VGA-G, the GND pin of the VGA output chip is connected to VGA-B, the VCC pin of the VGA output chip is connected to VGA-R, the CVBS output circuit includes a CVBS output chip, the first pin of the CVBS output chip is connected to CVBS, ESD9B5V-2 / TR and ESD9B5V-2 / TR, ESD9B5V-2 / TR and ESD9B5V-2 / TR are connected, ESD9B5V-2 / TR is connected to GND, CVB The second pin of the CVBS output chip is connected to GND, the third pin of the CVBS output chip is connected to HPLOUT, the fourth pin of the CVBS output chip is connected to GND, the fifth pin of the CVBS output chip is connected to HPROUT, the HDMI output circuit includes a first protection chip, a second protection chip and an output chip, the D2P pin of the output chip and the D0P pin of the output chip are respectively connected to the OUT1 pins of the first protection chip and the second protection chip, the D2N pin of the output chip and the D0N pin of the output chip are respectively connected to the OUT2 pins of the first protection chip and the second protection chip, the GND1 pins of the first protection chip and the second protection chip are connected to the GND2 pins of the first protection chip and the second protection chip. The ND2 pins are all grounded, the D1P pin of the output chip and the CLKP pin of the output chip are connected to the OUT3 pins of the first protection chip and the second protection chip respectively, the D1N pin of the output chip and the CLKN pin of the output chip are connected to the OUT4 pins of the first protection chip and the second protection chip, the G_D2 pin, G_D1 pin, G_D0 pin, G_CLK pin, G_DDC / CEC pin and 5V pin of the output chip are all grounded, the CEC pin of the output chip is connected to HDM-HCEC, the SCL pin of the output chip is connected to HSCL, the SDA pin of the output chip is connected to HSDA, the HOT_PLUG_ DET pin of the output chip is connected to HHPD, the IN1 pins of the first protection chip and the second protection chip are connected to HTX2P and HTX0P respectively, the IN2 pins of the first protection chip and the second protection chip are connected to HTX2N and HTX0N respectively,The IN3 pins of the first protection chip and the second protection chip are connected to HTX1P and HTXCP respectively, the IN4 pins of the first protection chip and the second protection chip are connected to HTX1N and HTXCN respectively, the HDMI output circuit also includes ESD6, ESD7, ESD8 and ESD9, ESD6 is connected to the HOT_PLUG_DET pin of the output chip, ESD7 is connected to the SDA pin of the output chip, ESD8 is connected to the CEC pin of the output chip, and ESD9 is connected to the SCL pin of the output chip. The multiple functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module and a WIFI / Bluetooth module. Each functional module is connected to the main control unit for realizing the corresponding function of the mobile terminal. The power management chip is connected to the main control unit to supply power to the main control unit, the output circuit and each functional unit. The Android main control can directly choose between the output HDMI video signal and the CVBS composite video signal, and can also choose between the output CVBS signal and the VGA signal, thereby realizing the simultaneous output of the two video signals. The utility model can give full play to the advantages of the main control chip and successfully achieve the simultaneous output of the two videos, which greatly expands the types of connectable displays. In addition, in this way, it is also possible to display different contents on two screens, so that the operation interface and the playback interface can achieve split-screen playback, effectively improving the convenience and flexibility of operation, bringing users a better and more convenient use experience, and allowing users to perform various operations more efficiently during use. ,

[0023] It includes a main control unit, a plurality of functional units respectively connected to the main control unit, and an output circuit of the above-mentioned intelligent song requesting machine.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An output circuit of an intelligent song-ordering machine, the song-ordering machine comprises a main control unit and a plurality of functional units respectively connected to the main control unit, characterized in that: The output circuit includes a CVBS output circuit, a VGA output circuit and an HDMI output circuit; The VGA output circuit and the CVBS output circuit can output simultaneously, and the CVBS output circuit and the HDMI output circuit can output simultaneously; The CVBS output circuit, the VGA output circuit and the HDMI output circuit are all connected to the main control unit.

2. The output circuit of the intelligent song-ordering machine according to claim 1, characterized in that: The main control unit includes a main control chip, and the main control chip adopts A / / WinnerA40I chip.

3. The output circuit of the intelligent song-ordering machine according to claim 1, characterized in that: The VGA output circuit includes a VGA output chip, an RST pin of the VGA output chip is connected to LCD-VSYNC, an INT pin of the VGA output chip is connected to LCD-HSYNC, an SDA pin of the VGA output chip is connected to GND, an SCL pin of the VGA output chip is connected to VGA-G, a GND pin of the VGA output chip is connected to VGA-B, and a VCC pin of the VGA output chip is connected to VGA-R.

4. The output circuit of the intelligent song-ordering machine according to claim 1, characterized in that: The CVBS output circuit includes a CVBS output chip, a first pin of the CVBS output chip is connected to CVBS, ESD9B5V-2 / TR and ESD9B5V-2 / TR, the ESD9B5V-2 / TR and the ESD9B5V-2 / TR are connected, the ESD9B5V-2 / TR is connected to GND, a second pin of the CVBS output chip is connected to GND, a third pin of the CVBS output chip is connected to HPLOUT, a fourth pin of the CVBS output chip is connected to GND, and a fifth pin of the CVBS output chip is connected to HPROUT.

5. The output circuit of the intelligent song-ordering machine according to claim 1 is characterized in that: The HDMI output circuit includes a first protection chip, a second protection chip and an output chip, the D2P pin of the output chip and the D0P pin of the output chip are respectively connected to the OUT1 pin of the first protection chip and the second protection chip, the D2N pin of the output chip and the D0N pin of the output chip are respectively connected to the OUT2 pin of the first protection chip and the second protection chip, the GND1 pin and the GND2 pin of the first protection chip and the second protection chip are both grounded, the D1P pin of the output chip and the CLKP pin of the output chip are respectively connected to the OUT1 pin of the first protection chip and the second protection chip, and the D2N pin of the output chip and the D0N pin of the output chip are respectively connected to the OUT2 pin of the first protection chip and the second protection chip. and the OUT3 pin of the second protection chip, the D1N pin of the output chip and the CLKN pin of the output chip are connected to the OUT4 pins of the first protection chip and the second protection chip, the G_D2 pin, G_D1 pin, G_D0 pin, G_CLK pin, G_DDC / CEC pin and 5V pin of the output chip are all grounded, the CEC pin of the output chip is connected to HDM-HCEC, the SCL pin of the output chip is connected to HSCL, the SDA pin of the output chip is connected to HSDA, the HOT_PLUG_DET pin of the output chip is connected to HHPD, the IN1 pins of the first protection chip and the second protection chip are connected to HTX2P and HTX0P respectively, the IN2 pins of the first protection chip and the second protection chip are connected to HTX2N and HTX0N respectively, the IN3 pins of the first protection chip and the second protection chip are connected to HTX1P and HTXCP respectively, and the IN4 pins of the first protection chip and the second protection chip are connected to HTX1N and HTXCN respectively.

6. The output circuit of the intelligent song-ordering machine according to claim 1, characterized in that: The HDMI output circuit further includes ESD6, ESD7, ESD8 and ESD9, wherein ESD6 is connected to the HOT_PLUG_DET pin of the output chip, ESD7 is connected to the SDA pin of the output chip, ESD8 is connected to the CEC pin of the output chip, and ESD9 is connected to the SCL pin of the output chip.

7. The output circuit of the intelligent song-ordering machine according to claim 1 is characterized in that: The functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module and a WIFI / Bluetooth module. Each functional unit is connected to the main control unit to realize the corresponding function of the mobile terminal.

8. The output circuit of the intelligent song-ordering machine according to claim 7, characterized in that: The power management chip is connected to the main control unit to supply power to the main control unit, the output circuit and each of the functional units.

9. An intelligent song-ordering machine, characterized in that: It includes a main control unit and a plurality of functional units respectively connected to the main control unit and an output circuit of the intelligent song requesting machine as claimed in any one of claims 1 to 8.

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