CN2694433Y

CN2694433Y - Digital music player

Info

Publication number: CN2694433Y
Application number: CN 200420007653
Authority: CN
Inventors: 陈馗; 江川
Original assignee: Beijing Founder Imp & Exp Co Ltd
Current assignee: Beijing Founder Imp & Exp Co Ltd
Priority date: 2004-03-31
Filing date: 2004-03-31
Publication date: 2005-04-20
Anticipated expiration: 2014-03-31

Abstract

The utility model relates to a digital music player, comprising a control module, a decoded module, an interface module, an acoustic frequency module and a voice output module. Under the control of the control module, the decoded module inputs the decoded signal into the acoustic frequency module to carry out the digital to analogue conversion and the power amplifier processing. Then the decoded signal is outputted by the voice output module. The interface module is a USBHOST interface module. The voice output module is a plate sound box. The USBHOST technology is applied into the digital music player, which can make the digital music player support the mobile storing equipment which conforms the USBMassStorage protocol. The digital music player combines the plate sound box to be used as the voice output, which extends the function of the common digital music player. The digital music player which has various functions, such as playing, sound recording and listening to the frequency-modulation broadcast is made.

Description

The digital music playing device

Technical field

The utility model provides a kind of digital music playing device, provide a kind of that can support to meet the movable storage device of USB Mass Storage agreement especially, comprise common U disk, common portable hard drive, card reader, the digital music playing device of movable storage devices such as digital camera, and with plat sound box as voice output, can be applied in all kinds of places.

Background technology

Advantages such as tonequality is good because digital music has, source of sound is abundant, various digital music playing devices, for example: Portable MP 3 player has become a kind of fashion.But existing various digital music playing device all belongs to USB peripheral hardware type equipment, and all USB peripheral hardwares all can only connect with Host, between any two peripheral hardwares or can't direct communication between two Host.And at present, a large amount of that play the part of Host role is PC PC.So the audio files that has determined existing various digital music playing device to play must be downloaded from computer, the source approach is single.

Traditional speaker products, bulky heaviness must be introduced extraneous source of sound by tone frequency channel wire, and this just makes much needs the place of music because the enjoyment that these restrictions can't enjoy music bring.

The utility model is at the defective of above prior art, USB HOST technology is applied in the digital music playing device, after using USB HOST, do not influence being connected of original equipment and PC, but make on market the existing equipment that surpasses 1,000,000,000 USB interface, also can be interconnected by USB HOST, the digital music source increases greatly, and, overcome the above-mentioned shortcoming of existing digital music playing device in conjunction with the output of plat sound box as sound, also injected portability for speaker products.

Summary of the invention

The utility model provides a kind of digital music playing device, comprising: control module, decoder module, interface module, audio-frequency module, voice output module; Under control module control, decoder module is imported audio-frequency module with decoded signal and is carried out digital-to-analog conversion and power amplifier processing, is exported by the voice output module again; It is characterized in that: described interface module is a USB HOST interface module; Described voice output module is a plat sound box.

Described device also comprises a memory module, is FLASH, SMC, MMC or SD type memory module, under control module control, can communicate by letter with decoder module and the peripheral hardware type movable storage device that is connected on the interface module.

Described interface module can walk abreast and be set to more than two, when described interface module any two or more are connected with peripheral hardware type movable storage device, can communicate by letter between the peripheral hardware type movable storage device under the control of control module.

Described device also comprises a FM signal receiver module, controlled module controls, and its audio frequency output connects the input end of described voice output module, receives FM signal and is converted into sound signal.

Described device also comprises a coding module and a recording module, deposits the peripheral hardware type movable storage device that connects on memory module or the interface module after the encoded resume module of the external signal of described recording module collection in.

Described device also comprises a function selecting module, comprises a plurality of function buttons, to control module input select command.

Described peripheral hardware type movable storage device is for using USB flash disk, portable hard drive, card reader or the digital camera of USB interface.

Described device also comprises a display module, to show the music information of running status and broadcast.Described device also comprises a backlight module, for described display module provides background light source.

Digital music playing device described in the utility model has the following advantages:

1. support to meet USB Mass Storage agreement overwhelming majority movable storage device, comprise common U disk, common portable hard drive, card reader, movable storage devices such as digital camera;

2. support the decodes and plays of the audio file of various forms.For example various Mp3 files comprise MPEG1/Layer2/Layer2.5/Layer3, MPEG2/Layer2.5/Layer3 and WMA formatted file;

3. support Mp3 recording and the LineIn function of 16Kbp～192Kbps;

4. support the mutual copy function of USB flash disk.By HostMp3, the copying data in the USB flash disk can be arrived another USB flash disk, thereby make user's swap data no longer need to rely on computing machine;

5. support ID3, functions such as synchronous lyrics demonstration, Karaoke;

6. support multiple EQ pattern;

7. support multiple play mode such as single circulates, AB is re-reading, shuffle, whole circulations;

8. support multiple dot matrix LCD such as 96 * 32,132 * 48,128 * 32;

9. support that English, German, simplified Chinese character, Chinese Big5, Japanese, Korean etc. are multi-lingual.

Description of drawings

Below with specific embodiment and be described with reference to the accompanying drawings the utility model.

Fig. 1 is the schematic block circuit diagram of the utility model embodiment one;

Fig. 2 is the schematic block circuit diagram of the utility model embodiment two;

Fig. 3 is the schematic block circuit diagram of the utility model embodiment three.

Embodiment

Embodiment one: the plat sound box player of supporting the peripheral hardware movable storage device

As shown in Figure 1, Fig. 1 is the circuit principle structure figure of present embodiment.Concrete structure comprises: control module adopts the MCU of 32 RISC as the decoder module of integrated control chip, support MP3/WMA formatted file, USB HOST interface module, CODEC audio-frequency module and as the plat sound box of voice output module; The driver of the integrated control chip internal USB of MCU HOST interface, make the movable storage device of peripheral hardware realize communicating by letter by USB HOST interface and decoder module, decoder module is imported audio-frequency module with decoded signal and is carried out digital-to-analog conversion and power amplifier processing, is exported by plat sound box again.Be connected the back side that each integrated circuit is fixed on plat sound box by bus between the output of audio-frequency module and the audio amplifier and form an integral body.Simultaneously, as shown in Figure 2, but also built-in FLASH, SMC, MMC or SD type memory module are used with convenient.The memory module that this is built-in and the movable storage device of peripheral hardware are under the driving of control chip, can realize information mutual communication, and being provided with of interface module can be two and more a plurality of, also can mutual communication between the peripheral hardware mobile storage that interface module connects, so, by this player, just can be with the copying data in the USB flash disk to another USB flash disk, thereby make user's swap data no longer need to rely on computing machine, expanded the function of existing digital music player.

Embodiment two: the plat sound box player with radio function

As shown in Figure 2, Fig. 2 is the circuit principle structure figure of present embodiment.On the basis of embodiment one, can make a kind of player that receives FM signal that has.The concrete FM FM reception module that increases, controlled module controls realizes the FM reception function, its audio frequency output connects the audio input end of plat sound box, makes the player that has the digital tuning radio function concurrently.The stereo digital tuning radio receiver module of FM can be realized numeral channel selection automatically, functions such as manually channel selection, 20 channels that prestore.

Embodiment three: the plat sound box player with sound-recording function

As shown in Figure 3, Fig. 3 is the circuit principle structure figure of present embodiment.Present embodiment still on the basis of embodiment one, increases a coding module and a recording module, deposits the peripheral hardware type movable storage device that connects on memory module or the interface module after the encoded resume module of the external signal of recording module collection in.When needed, transfer from memory module by control module at any time, after decoding processing, broadcast again.

More than among all embodiment, various function buttons and earphone jacks such as the position at the plat sound box handled easily also is provided with broadcast, stops, loop play, front at plat sound box is provided with display module, the running status of the device that can display the play and the happy information of broadcasting.The user can select play mode by operation push-button according to the hobby of self.Display module provides required bias light by the backlight module that links to each other with control module.

Whole player can be made all kinds such as the formula of putting, suspension type.Because plat sound box is not only having comparatively leading advantage aspect tonequality, outward appearance, the cost, and can moistureproof, dustproof advantage, have certain decorative effect simultaneously concurrently, not only can in office, make things convenient for, also be applicable to each place such as parlor, kitchen, bathroom of family.

In sum, the utility model is applied to USB HOST technology in the digital music playing device, and in conjunction with the output of plat sound box as sound, expanded the function of digital music player, make it have various functions of use such as FM listens to, audio amplifier broadcast, recording concurrently, and have certain decorative effect, can be applied in various places such as family, office.

Claims

1, a kind of digital music playing device comprises: control module, decoder module, interface module, audio-frequency module, voice output module; Under control module control, decoder module is imported audio-frequency module with decoded signal and is carried out digital-to-analog conversion and power amplifier processing, is exported by the voice output module again; It is characterized in that: described interface module is a USB HOST interface module, and described voice output module is a plat sound box.

2, device as claimed in claim 1, it is characterized in that: also comprise a memory module, be FLASH, SMC, MMC or SD type memory module, under control module control, can communicate by letter with decoder module and the peripheral hardware type movable storage device that is connected on the interface module.

3, device as claimed in claim 1, it is characterized in that: described interface module can walk abreast and be set to more than two, when described interface module any two or more are connected with peripheral hardware type movable storage device, can communicate by letter between the peripheral hardware type movable storage device under the control of control module.

4, device as claimed in claim 1 is characterized in that: also comprise a FM signal receiver module, and controlled module controls, its audio frequency output connects the input end of described voice output module, receives FM signal and is converted into sound signal.

5, as claim 2 or 3 described devices, it is characterized in that: also comprise a coding module and a recording module, deposit the peripheral hardware type movable storage device that connects on memory module or the interface module after the encoded resume module of the external signal of described recording module collection in.

6, device as claimed in claim 1 is characterized in that: also comprise a function selecting module, comprise a plurality of function buttons, to control module input select command.

7, as claim 2 or 3 described devices, it is characterized in that: described peripheral hardware type movable storage device is for using USB flash disk, portable hard drive, card reader or the digital camera of USB interface.

8, device as claimed in claim 1 is characterized in that: also comprise a display module, to show the music information of running status and broadcast.

9, device as claimed in claim 8 is characterized in that: also comprise a backlight module, for described display module provides background light source.