CN201072649Y - spectrum reader - Google Patents

Abstract

The utility model relates to a music score reader, mainly include: CF card read-write element, SD card read-write element, four-wire resistance type touch screen, audio decoder & four-wire resistance type touch screen control element, JTAG debugging element, RS232 communication element, USB host computer element, USB slave computer element, key element, backup battery element, VGA driving element, LVDS driving element, high-voltage board element, TFT display screen, power control circuit, Ethernet element, earphone output, microprocessor and foot switch element.

Description

spectrum reader

technical field

The utility model refers to a spectrum reader, which mainly includes: CF card reading and writing components (CompactFlash Card/standard flash memory card), SD card reading and writing components (Secure Digital Card/safety digital card), four-wire resistive Touch screen, audio decoder & four-wire resistive touch screen control components, JTAG debugging components (Joint Test Action Group/joint test action group (an international standard test protocol), RS232 communication components, USB host components (Universal Serial Bus/universal serial bus), USB slave components, button components, backup battery components, VGA drive components (Video Graphics Array/Video Graphics Array), LVDS drive components (Low Voltage Differential Signaling/Low Voltage Differential Signaling), high voltage board components, TFT display (Thinfilm Transiston/thin film field effect transistor display screen), power control circuit, Ethernet components, headphone output, microprocessor and foot switch components, in the form of electronic music scores, replacing traditional paper scores, with the ability to create scores, A score reader device with functions such as flipping through music scores and editing and storing scores.

Background technique

At present, when musical instrument players are playing, they usually need to arrange the paper music score with the music score rack so that the player can read the paper music score by himself, which will make the player distracted and quickly in addition to playing Flipping through paper scores can really cause trouble during performance; or there is a need for a special person to be responsible for turning over paper scores, and usually the person responsible for turning over paper scores is only responsible for the simple work of turning over paper scores on stage, which is really a waste Manpower, and may affect the performer's performance.

Furthermore, when many composers create music, they often play casually first, and then write down the previously played music on paper, so that the composer needs to spend time recording the music, and cannot immediately continue to the next music. It often interrupts the composer's sudden inspiration, resulting in a serious shortcoming of stagnation in creating music.

In view of the shortcomings of the existing paper music scores that still need to be overcome, an improved structure of a score reader is designed.

Utility model content

The purpose of this utility model is to provide a spectrum reader, which mainly includes: CF card reading and writing components, SD card reading and writing components, four-wire resistive touch screen, audio decoder & four-wire resistive touch screen control components, JTAG debugging components , RS232 communication components, USB host components, USB slave components, key components, backup battery components, VGA drive components, LVDS drive components, high voltage board components, TFT display screen, power control circuit, Ethernet components, headphone output, microprocessor Composed of instrument and foot switch components, it replaces traditional paper music scores in the form of electronic music scores. It is a music reading device with the functions of creating scores, browsing scores, editing and storing scores, etc.

In order to achieve the above-mentioned purpose, the preferred embodiments of the present utility model are listed below, and are described below with the drawings, so that your examiner can have a better understanding of the advantages, purposes and effects of the present utility model.

At first, please refer to shown in Fig. 1～3, the spectrum reader of the present utility model mainly comprises: CF card reading and writing element (11), SD card reading and writing element (12), four-wire resistive touch screen (13), audio frequency decoder & Four-wire resistive touch screen control element (14), JTAG debugging element (15), RS232 communication element (16), USB host element (17), USB slave element (18), button element (19), backup battery element (20), VGA drive component (21), LVDS drive component (22), high voltage plate component (23), TFT display screen (24), power supply control circuit (25), Ethernet component (26), headphone output (27) ), microprocessor (3) and foot switch element (4) and other main components, wherein:

The CF card read-write component (11) is composed of a CF card holder and a CF card read-write control circuit. When the user performs a read-write operation on the CF card, the main control microprocessor (3) first determines the operation performed by the user, Then the operation is converted into two parts of address information and data information for transmission, and the CF card read and write control circuit completes the final operation according to these two information.

The SD card read-write component (12) is made up of an SD card holder and an SD card read-write control circuit. When the user performs an SD card read-write operation, the main control microprocessor (3) first determines the operation performed by the user, Then the operation is converted into a clock signal and four data signals and sent to the SD card read and write control circuit, and the SD card read and write control circuit reads and writes according to these signals.

Four-wire resistive touch screen (13), its working principle is that when finger or stylus touches the touch screen, the X coordinate and Y coordinate of the position of finger or stylus with X+, X-, Y+, Y- , the form of four signals is transmitted to the touch screen control element (14), and finally the touch screen control circuit is responsible for the data exchange between the main control microprocessor (3) and the touch screen.

The audio decoder & four-wire resistive touch screen control element (14) is an integrated circuit with AC97 protocol audio decoding and four-wire resistive touch screen control functions, supplemented by some peripheral components. When playing an audio file, the component decodes the digital audio signal sent by the main control microprocessor (3), and internally completes digital-to-analog conversion, thereby restoring sound. When a four-wire resistive touch screen (13) is used externally, the element transmits the received X+, X-, Y+, Y- four signals representing position information to the main control microprocessor (3), and the main control The microprocessor (3) restores the position information according to the four signals, thereby determining what operation the user has done, and controls the display and other parts to visualize the user's operation and finally complete the operation.

The JTAG debugging component (15) is mainly used for debugging programs.

RS232 communication component (16), which is mainly composed of RS232 communication interface and RS232 communication control circuit. The RS232 communication control circuit is a way of communication between the spectrum reader system and the computer. There is asynchronous serial communication between them, and this interface is mainly used for debugging programs.

The USB host component (17) mainly consists of a USB host controller and a USBA interface, through which the spectrum reader can be used as a USB host control circuit, so as to external devices, such as: mobile hard disk, USB mouse, USB keyboard, etc. USB slave device for control.

The USB slave component (18) is mainly composed of a USB slave control circuit and a MINIUSBB interface. Through this component, the spectrum reader itself can be used as a slave device of a computer, and data synchronization can be performed between the spectrum reader and the computer. and so on.

The button element (19) mainly includes: a power button, a reset button, and an up/down page turning button.

The power button is a light-touch control. Every time the power button is pressed, the power control circuit (25) will receive a control signal, and the power control circuit (25) will decide to start or shut down according to the working state at that time. The lower power control circuit (25) is in a standby state and is ready to receive a start signal at any time.

The reset (RESET) button is also a light-touch control. When there is a problem in the system that cannot be recovered, press the reset button and the system will reset.

The page up/down key can be connected to a foot switch element (4), and connected to the foot switch interface through an extension cable. The level of the output port is pulled down to complete the operation. When the user performs page up or down operation through the foot switch, the port level of the main control microprocessor (3) corresponding to the up or down page key will be Pulled low once, the main control microprocessor (3) defines the function of the input port by the internal software, so that the main control microprocessor (3) can identify whether it is a page-turning switch action or a page-turning switch action according to the change of the port level. Page down switch action.

The backup battery element (20) is mainly composed of a 11.1V4Ah backup battery and a battery charging circuit, and the backup battery has battery power detection, overheat detection and battery state detection circuits inside the backup battery. The backup battery and the main control microprocessor (3) communicate through the SMBUS communication protocol, and transmit battery power and other states, thereby controlling the battery power icon displayed on the screen. When the backup battery is inserted into the backup battery slot, the battery detection circuit will affect the battery status bit of the charging circuit. At this time, the charging circuit will know whether the battery is fully charged according to the voltage sampling of the battery, and finally decide whether to perform charging operation. When charging, the power supply The three-color indicator light turns red to indicate charging.

The VGA drive element (21) mainly consists of a VGA drive control circuit and a VGA socket. The VGA drive control circuit converts the digital video signal sent by the main control microprocessor (3) into a VGA video signal, and outputs it to devices such as a VGA display and a projector through the VGA socket.

The LVDS drive element (22) is mainly composed of an LVDS drive control circuit. The LVDS drive control circuit converts the digital video signal sent by the main control processor (3) into an LVDS video signal, and outputs it to the TFT display screen (24 ).

The high-voltage plate element (23) is mainly composed of a high-voltage generating circuit and a high-voltage control circuit. The high-voltage generating circuit converts the DC12V power supply into a high voltage of more than 1000 volts through pulse modulation, and provides it to the TFT screen as a backlight source. After receiving the high-voltage control signal sent by the main control microprocessor (3), the high-voltage control circuit controls the shutdown and operation of the high-voltage generating circuit according to the state of the signal, thereby achieving the function of high-voltage control.

The Ethernet component (26) is mainly composed of an RJ45 Ethernet interface and an Ethernet controller, and is used for updating the kernel file.

The earphone output element (27) is mainly composed of an earphone amplifier circuit and a stereo earphone output interface. The headphone amplifier circuit amplifies the analog audio signal sent by the audio decoding circuit and outputs it to the headphone output interface for driving the headphone.

Description of drawings

Shown in Fig. 1 is the appearance structural representation of the utility model.

Figure 2 is a schematic diagram of the appearance structure of the back of the utility model.

Shown in Fig. 3 is the structural block diagram of the present utility model.

Description of main component symbols

(11)——CF card reading and writing components (12)——SD card reading and writing components

(13)——Four-wire resistive touch screen

(14)——Audio decoder & four-wire resistive touch screen control element

(15)——JTAG debugging components (16)——RS232 communication components

(17) - USB host component (18) - USB slave component

(19)——button element (20)——backup battery element

(21)——VGA drive components (22)——LVDS drive components

(23)——high voltage plate components (24)——TFT display screen

(25)——power control circuit (26)——Ethernet component

(27) - headphone output (3) - microprocessor

(4)——Foot switch element

Detailed ways

The utility model combines the above-mentioned components into a whole music reader device, especially provides an electronic music score to replace the traditional paper music score, and has the functions of creating, browsing, editing, deleting, saving, system initialization and so on.

Creation function: mainly refers to the ability for composers to easily enter notes and text on the system based on sudden inspiration, so as to achieve the function of creating new scores. The score supports staff and numbered notation, and includes the input of notes and lyrics.

Browsing function: refers to the ability to browse external files, such as music score files in common picture formats downloaded with a scanner or from the Internet. When browsing, it has functions such as rotation, zooming, and page up/down of the music file, wherein, page up/down is the most important and most commonly used function of the utility model. There are three ways to turn pages: there are two buttons on the TFT display screen (not shown in the figure), click the "Previous Page" button to turn to the previous page, and click the "Next Page" button to move to the next page. Turning the next page, moreover, you can also touch and slide on the TFT display screen, slide from right to left like turning a book, you will turn to the previous page, and slide from left to right, then you will turn to the next page , In addition, the function of page up/down in the utility model can also be turned up/down by setting the corresponding socket through software and leading out the pedal switch element; in addition, it can automatically adapt to the size of the screen when rotating.

Save function: mainly refers to the ability to store the files created under this system in an appropriate file format, which can only be read by this system. At the same time, it can also be stored as a picture format, which is convenient for other computers to read.

Editing function: it means that composers, performers or other users can conveniently modify the score files in the system in real time through the virtual keyboard when using the utility model. Files in other formats can also be modified, and can be saved after modification, and the modified file will be opened next time. The modification includes adding and deleting score symbols, text and annotations; the copy, delete and paste functions are required in the process of modifying the score. The utility model has a powerful mark and symbol library, and the mark function refers to making some notes with words or symbols at the end of each line of lyrics.

System initialization function: the pre-stored music score file in the system can be transmitted to the utility model through SD card, CF card, or directly downloaded from the computer to the utility model through the USB component, so as to achieve the purpose of convenient production. When the system of the utility model cannot be restored, the function of automatically returning to the factory settings can be realized through the system reset key.

It has a browser (similar to a computer's resource manager) and a function of searching through file names (similar to a computer's search function).

It can play media files in MP3, MIDI, MMF, WMA, and WAV formats.

The above detailed description is a specific description of feasible embodiments of the present utility model, but the aforementioned embodiments are not intended to limit the patent scope of the present utility model, and any equivalent implementation or change that does not depart from the spirit of the present utility model shall be Included in the patent scope of the present utility model.

In summary, the utility model can indeed achieve the expected purpose of use, and the specific structure disclosed by it has excellent utility value and efficacy.

Claims (3)

1. read to compose device for one kind, it is characterized in that, describedly read to compose device and comprise:

CF card read-write elements, form by a CF deck and CF card read-write control circuit, when to CF card read-write operation, operation is become address information to main control microprocessor and data message two parts transmit, and CF card read-write control circuit is finished final operation according to these two information;

SD card read-write elements, form by a SD deck and SD card read-write control circuit, when to SD card read-write operation, main control microprocessor converts operation to clock signal and four data-signals send to SD card read-write control circuit, and SD card read-write control circuit is according to the signal read-write operation;

Four-wire resistance type touch screen, when touching touch-screen, this touch-screen internal circuit, the Building X mark and the Building Y that touch the position are marked with X+, X-, Y+, Y-, the form of four signals passes to the touch-screen control element, is responsible for exchanges data between main control microprocessor and the touch-screen by touch screen control circuit;

Yin Pinxiemaqi ﹠amp; The four-wire resistance type touch screen control element, it is integrated circuit by audio decoder and four-wire resistance type touch screen control function, being aided with peripheral element constitutes, when the audio plays shelves, the digit audio frequency signal that the main control microprocessor transmission comes is decoded, and finish digital-to-analog conversion, thereby be reduced into sound; When four-wire resistance type touch screen is used in the outside, with four signals of representing positional information of X+, X-, Y+, Y-that receive, pass to main control microprocessor, main control microprocessor is reduced into positional information according to four signals, and the control demonstration will be operated visualization;

JTAG debugs element, mainly is used as the debugging formula;

The RS232 communication element, mainly form by RS232 communication interface and RS232 communication control circuit, the RS232 communication control circuit, it is an approach reading to compose communication between device system and the computer, make to read to compose by data line and carry out asynchronous tandem communication between device and the computer, this interface mainly is used as the debugging formula;

The usb host element mainly is made up of usb host controller and USB A interface, by this element, reads to compose device and can be used as a usb host control circuit, thereby external unit is controlled;

USB slave element mainly is made up of USB slave control circuit and a MINI USB B interface, by this element, reads to compose device and can read to compose and can carry out operations such as data sync between device and the computer as a slave unit of computer;

Key element, at least comprise on one/following page turning key, can connect a foot-switch element, receive the foot-switch interface by extended line, these two page turning keys are to drag down complete operation by the level with two universal input and output port of main control microprocessor, when passing through the foot-switch element, when carrying out up or down page turn over operation, up or down page turning key the port level of corresponding main control microprocessor will be dragged down once, main control microprocessor is by the function of in house software definition input port, thereby main control microprocessor is according to the variation of port level, and identification is upwards page turning switch motion or page turning switch motion downwards;

The backup battery element mainly is made up of backup battery and battery charger, and backup battery inside has battery electric quantity and detects and overheated detection and test circuit for cell status;

The VGA driving element mainly is made up of VGA Drive and Control Circuit and a VGA socket, the VGA Drive and Control Circuit, and the numerical digit vision signal with the main control microprocessor transmission comes converts the VGA vision signal to, outputs to the VGA display by the VGA socket;

The LVDS driving element, the LVDS Drive and Control Circuit, the numerical digit vision signal that the main control processor transmission is come converts the LVDS vision signal to, outputs to the TFT display screen by connecting line;

The hardboard element, mainly form by high-pressure generating circuit and high-voltage control circuit, high-pressure generating circuit is with DC 12V power supply, convert high pressure to by pulse modulated mode, offer the TFT screen as backlight, after high-voltage control circuit receives the high voltage control signal that main control microprocessor transmission comes, according to the shutoff and the work of the State Control high-pressure generating circuit of signal;

The Ethernet element is made up of Ethernet interface and ethernet controller, is used for upgrading the kernel shelves;

The earphone output element is made up of earphone amplifying circuit and a stereophonic headset output interface, and the analogy sound signal that the earphone amplifying circuit comes the audio decoding circuit transmission is used for promoting earphone through outputing to headset output interface after amplifying.

2. read to compose device according to claim 1 is described, it is characterized in that, wherein said Key element also further comprises a power button, be soft-touch type control, whenever press the primary power source button, power control circuit will be received a control signal, and power control circuit is basis duty at that time then, decision is started shooting or power-off operation, and power control circuit is in holding state and prepares to receive starting-up signal at any time under the off-mode.

3. reading to compose device according to claim 1 is described, it is characterized in that wherein said Key element also further comprises one and resets button, is soft-touch type control, goes wrong can't recover the time in internal system, will reset by resetting key system.

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