CN2683458Y - Automobile electronic music storage and playback apparatus with USB interface - Google Patents

Abstract

The utility model discloses a music storing and playing system on an automobile-automobile electronic music storing and playing device with a USB interface, which comprises a power amplifying circuit (4) and a sounding device (5) which are arranged in an automobile (10). The utility model is characterized in that the automobile electronic music storing and playing device also comprises an electronic hard disc (1), an inserting groove (2) and a control circuit (3), wherein the electronic hard disc (1) is connected with the input end of the control circuit (3) through the inserting groove (2), the output end of the control circuit (3) is connected with the input end of the power amplifying circuit (4), the output end of which is connected with the input end of the sounding device (5), and the inserting groove (2), the control circuit (3) and the electronic hard disc (1) are also arranged in the automobile (10). The utility model has the advantages of small size, large capacity, digitization, shock resistance, magnetic prevention, electrostatic prevention, convenient voice recording function realization and high reading speed.

Description

The vehicle electronics music storage and the playing device that have USB interface

Technical field:

The utility model relates to music storage and the Play System of using on a kind of automobile.

Background technology:

Vehicle electronics sound equipment storage at present mainly contains cassette recorder and two kinds of forms of CD Player with Play System.As the first generation and second generation vehicle electronics sound system, all there are many deficiencies in cassette recorder and CD Player, for example, cassette recorder since with traditional cartridge as memory carrier, to temperature, humidity sensitive, sound quality reduction, easily distortion during long-term use, tape easily twists band, comes and goes conduction band inconvenience etc.And adopt " CD " in the CD Play System as memory carrier, and relatively more responsive to vibrations, must be equipped with certain glissando in actual the use, particularly connect and put machine for DVD multidisc, the system architecture complexity, and because volume is big, generally need be located in the boot of car, practical application is very inconvenient.

The utility model content:

Existing automobile music storage and Play System volume are big in order to overcome, complex structure, inconvenient problem with use, provide a kind of volume electronic vehicle music storage and Play System little, simple in structure, easy to use.The technical solution of the utility model is as follows: a kind of vehicle electronics music storage and playing device that has USB interface, it comprises power amplification circuit 4 and the PA-system 5 that is arranged in the automobile 10, it also comprises electronic hard disc 1, inserting groove 2 and control circuit 3, electronic hard disc 1 is connected on the input end of control circuit 3 by inserting groove 2, the mouth of control circuit 3 is connected on the input end of power amplification circuit 4, the mouth of power amplification circuit 4 is connected on the input end of PA-system 5, and inserting groove 2, control circuit 3 and electronic hard disc 1 also are arranged in the automobile 10.The utility model adopts that general-duty flash disk (also claiming the USB memory disc, flash disk, electronic hard disc etc.) be a memory carrier in the computer realm, be applied in have on the automobile present existing two kinds of players (cassette recorder and CD Player) incomparable advantage.For example: 1. volume is little, and capacity is big.Electronic hard disc 1 as the music storage dish generally has only adult's thumbnail size, and shared volume has only 1/20～1/50 of cassette recorder, about 1/20～1/100 of CD Player; Can store 10～100 first songs on each memory disc capacity as required, following increase (more than the 512M) along with the USB flash drive capacity, number of songs also will increase greatly.Can realize on computers in addition repeating to wipe and duplicate, repeated use.2. anti-vibration can not produce any influence to sound playing in the running car environment.3. antimagnetic, electrostatic prevention change insensitive to ambient temperature, humidity.4. realize sound-recording function easily.5. reading speed is exceedingly fast.Neither need during play list as audifier recorder " conduction band ", also faster than CD Player speed.6. can realize exchange with the PC data by USB interface, the form music of liking from network download oneself such as MP3, WMA, thus realize that vehicle electronics digitalisation and automobile combine with data between the computer and shared.The utility model is through after a while the market cultivation and development, and may make it fully becomes third generation auto audio equipment, and finally becomes the final substitute products of aforementioned two kinds of players.

Description of drawings:

Fig. 1 is the electrical block diagram of the utility model embodiment one, and Fig. 2 is the structural representation of the specific embodiment two, and Fig. 3 is the structural representation of embodiment three, and Fig. 4 is the structural representation of embodiment four, and Fig. 5 is the structural representation of embodiment one.

The specific embodiment:

The specific embodiment one: specify present embodiment below in conjunction with Fig. 1, Fig. 2 and Fig. 5.Present embodiment is made up of power amplification circuit 4, PA-system 5, automobile 10, electronic hard disc 1, inserting groove 2 and control circuit 3, electronic hard disc 1 is connected on the input end of control circuit 3 by inserting groove 2, the mouth of control circuit 3 is connected on the input end of power amplification circuit 4, the mouth of power amplification circuit 4 is connected on the input end of PA-system 5, and electronic hard disc 1, inserting groove 2, control circuit 3, power amplifier 4 and PA-system 5 are arranged in the automobile.Described PA-system 5 is audio amplifier or earphone.Electronic hard disc 1 is the USB memory disc 1-1 (be called for short flash disk or claim USB flash disk) of common usefulness.Inserting groove 2 is usually used standard USB interface 2-1, and it is applicable to the common USB memory disc.

The specific embodiment two: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and embodiment one is, inserting groove 2 also comprises special USB interface 2-2, and it is that front end has several slots around the projection of arranging, and pegs graft with the USB memory disc 1-2 that has particular interface.Special USB interface 2-2 is connected on the input end of control circuit 3.Because present embodiment is provided with a kind of socket of USB memory disc more, has applicability and commonality widely.Other composition is identical with embodiment one with annexation.

The specific embodiment three: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and embodiment one is, control circuit 3 is by main control circuit 3-1, decoding circuit 3-2, LCD display control circuit 3-3, D/A change-over circuit 3-4, LCD display 3-5 and function key matrix 3-6 form, the input end of main control circuit 3-1 connects the mouth of electronic hard disc by inserting groove 2, the mouth of main control circuit 3-1 gives electronic hard disc 1 power supply by inserting groove 2, another mouth of main control circuit 3-1 connects the input end of decoding circuit 3-2, another mouth of main control circuit 3-1 connects the input end of LCD display control circuit 3-3, the mouth of decoding circuit 3-2 connects the input end of D/A change-over circuit 3-4, the mouth of D/A change-over circuit 3-4 connects the input end of power amplification circuit 4, the mouth of LCD display control circuit 3-3 connects LCD display 3-5 input end, the port of another port linkage function key matrix 3-6 of LCD display control circuit 3-3.It is the chip of SPCA514 that main control circuit 3-1 can select model for use, it is the chip of SPCA751 that decoding circuit 3-2 can select model for use, it is the chip of SPL10A that LCD display control circuit 3-3 can select model for use, and it is the chip of SPCA713 that D/A change-over circuit 3-4 can select model for use.

The specific embodiment four: specify present embodiment below in conjunction with Fig. 4.The difference of present embodiment and embodiment one is, it also comprises cassette recorder 6, CD Player 7 and change-over swith 8, three input ends of change-over swith 8 connect the mouth of cassette recorder 6, CD Player 7 and control circuit 3 respectively, and the mouth of change-over swith 8 connects the input end of power amplification circuit 4.So be provided with, cartridge, CD dish with these several storage mediums of electronic hard disc are parallel uses, stay one section transition period on automobile for cartridge and CD dish finally are eliminated.

Claims (5)

1, a kind of vehicle electronics music storage and playing device that has USB interface, it comprises power amplification circuit (4) and the PA-system (5) that is arranged in the automobile (10), it is characterized in that it also comprises electronic hard disc (1), inserting groove (2) and control circuit (3), electronic hard disc (1) is connected on the input end of control circuit (3) by inserting groove (2), the mouth of control circuit (3) is connected on the input end of power amplification circuit (4), the mouth of power amplification circuit (4) is connected on the input end of PA-system (5), inserting groove (2), control circuit (3) and electronic hard disc (1) also are arranged in the automobile (10).

2, vehicle electronics music storage and the playing device that has USB interface according to claim 1 is characterized in that electronic hard disc (1) is USB memory disc (1-1), and inserting groove (2) is standard USB interface (2-1).

3, vehicle electronics music storage and the playing device that has USB interface according to claim 2, it is characterized in that inserting groove (2) also comprises special USB interface (2-2), it is that front end has several around the slot of arranging projection, pegs graft with the USB memory disc (1-2) that has particular interface.

4, vehicle electronics music storage and the playing device that has USB interface according to claim 1, it is characterized in that control circuit (3) is by main control circuit (3-1), decoding circuit (3-2), LCD display control circuit (3-3), D/A change-over circuit (3-4), LCD display (3-5) and function key matrix (3-6) are formed, the input end of main control circuit (3-1) connects the mouth of electronic hard disc (1) by inserting groove (2), a mouth of main control circuit (3-1) is given electronic hard disc (1) power supply by inserting groove (2), another mouth of main control circuit (3-1) connects the input end of decoding circuit (3-2), another mouth of main control circuit (3-1) connects the input end of LCD display control circuit (3-3), the mouth of decoding circuit (3-2) connects the input end of D/A change-over circuit (3-4), the mouth of D/A change-over circuit (3-4) connects the input end of power amplification circuit (4), a mouth of LCD display control circuit (3-3) connects LCD display (3-5) input end, the port of another port linkage function key matrix (3-6) of LCD display control circuit (3-3).

5, vehicle electronics music storage and the playing device that has USB interface according to claim 1, it is characterized in that it also comprises cassette recorder (6), CD Player (7) and change-over swith (8), three input ends of change-over swith (8) connect the mouth of cassette recorder (6), CD Player (7) and control circuit (3) respectively, and the mouth of change-over swith (8) connects the input end of power amplification circuit (4).

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