Summary of the invention
Technical matters of the present utility model is that a kind of MP3 learning machine that reads the voice data with the bar code scan mode will be provided, it becomes teaching material compiling the file of forms such as MP3, WMA, and be convenient to the setting of learning and playing, thereby provide a kind of quick and easy, high tone quality, multi-functional, language learning instrument cheaply.
For solving above technical matters, the utility model provides a kind of MP3 learning machine of tape sign indicating number scan function, be provided with a single-chip microcomputer respectively with the infrared inductor module, the LCM display module, Keysheet module, FM radio reception module, storage chip links to each other, single-chip microcomputer also is connected with amplifying circuit, amplifying circuit drives a microphone, single-chip microcomputer also is provided with a USB interface, there is music file in the storage chip, recording file, text and teaching material file, the corresponding bar code of every group of speech data in the teaching material file, the infrared inductor module scans corresponding bar code delivers to single-chip microcomputer, single-chip microcomputer accesses voice messaging corresponding with this bar code in the storage chip and real name information, voice messaging is changed through D/A, amplifying the back is broadcasted by microphone, real name information is shown synchronously by the LCM display module, all modules and circuit, single-chip microcomputer is provided with in the box body.
A described box body, the infrared inductor scanning head places the left front end of box body, the USB/ external power interface places the left back end of box body, external receiver J-Horner places the right rear end of box body, LED display is set on the box body surface, the box body side is provided with power switch, volume control key, and the front is provided with menu/return key, play button, record button, determines/repeat key, forward and backward, upper and lower four Navigation Control keys, eight character keys, clear key.
Described storage chip can be built-in, also can be placed in the expansion slot, is connected with single-chip microcomputer.Voice document process digital processing and coding and compression, in the storage chip of packing into, the corresponding bar code of the speech data of each teaching material file.
Described usb circuit, single-chip microcomputer be by usb circuit and computing machine communication, and the voice in the storage chip, text data are added, delete, inquire about and extract operation.
Advantage of the present utility model is to cooperate learning materials, can read the voice data quickly and accurately, thereby improves learner's learning efficiency and learning interest, is a kind of quick, easy to operate, high tone quality, multi-functional, language learning instrument cheaply.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is a profile synoptic diagram of the present utility model;
Fig. 3 is another profile synoptic diagram of the present utility model;
Fig. 4 is the circuit diagram of CPU of the present utility model;
Fig. 5 (comprising Fig. 5 A, Fig. 5 B) is the circuit diagram of storer of the present utility model;
Fig. 6 is the former road figure of FM radio reception module of the present utility model.
The number in the figure explanation
1-noctovisor scan probe; The 2-LED display screen;
The 3-card slot; 4-menu/return key;
5-broadcast/stop key; 6-recording/Pause key;
The last navigation key of 7-; 8-determines/repeat key;
The 9-key that advances; The 10-back spacer;
11-power supply/key backlight; The 12-volume control key;
Navigation key under the 13-; The 14-clear key;
The 15-character keys; The 16-USB/ external power interface;
The 17-microphone opening; The 18-reset key;
The external receiver J-Horner of 19-; The 20-box body;
The 21-single-chip microcomputer; 22-noctovisor scan module;
The 23-Keysheet module; The 24-earphone;
The 25-microphone; The 26-USB interface;
The 27-LED display module; The 28-storage chip;
The 29-expansion slot; 30-FM radio reception module;
The 31-power module.
Embodiment
See also shown in the accompanying drawing, the utility model will be further described.
Shown in Fig. 1 schematic block circuit diagram of the present utility model, the utility model has kept the basic function of MP3, on the basis of MP3 player, has added the setting of automatic recognition system and learning functionality.The utility model is a kind of MP3 learning machine of tape sign indicating number scan function, be provided with a single-chip microcomputer 21 respectively with infrared inductor module 22, LCM display module 27, Keysheet module 23, FM radio reception module 30, storage chip 28 links to each other, single-chip microcomputer 21 also is connected with amplifying circuit, amplifying circuit drives a microphone 25, single-chip microcomputer 21 also is provided with a USB interface 26, there is music file in the storage chip 28, recording file, text and teaching material file, the corresponding bar code of every group of speech data in the teaching material file, the corresponding bar code of infrared inductor module 22 scannings is delivered to single-chip microcomputer 21, single-chip microcomputer 21 accesses voice messaging corresponding with this bar code in the storage chip 28 and real name information, voice messaging is changed through D/A, amplifying the back is broadcasted or is emitted by external loudspeaker 24 by microphone 25, real name information is shown synchronously by LCM display module 27, all modules and circuit, single-chip microcomputer 21 is provided with in the box body 20.
Shown in Fig. 2 profile synoptic diagram of the present utility model, a described box body 20, noctovisor scan probe 1 places the left front end of box body 20, and card slot 3 is positioned at box body 20 positive front ends, and box body 20 dual-sides are provided with power supply/key 11 backlight, volume control key 12; Box body is provided with LED display 2 on 20 fronts, menu/return key 4, broadcast/stop key 5, recording/Pause key 6, last navigation key 7 is determined/repeat 8, the key 9 that advances, back spacer 10, following navigation key 13, clear key 14, character keys 15, microphone opening 17, box body 20 lower ends are provided with USB/ external power interface 16, reset key mouth 18, external receiver J-Horner 19.
Shown in Fig. 3 another profile synoptic diagram of the present utility model, utility model defaulted eight character keys 15 and clear key 14 have omitted the query function of character.
Described storage chip can be built-in 28, also can be placed in the expansion slot 3, is connected with single-chip microcomputer 21.Voice signal is pre-loaded in the storage chip 28,29 through digital processing and coding and compression, the corresponding bar code of each teaching material class speech data.
Described usb circuit 26, single-chip microcomputer 21 be by usb circuit 26 and computing machine communication, and the speech data in the storage chip 28,29 is added, deletes, inquires about and extracts operation.
The utility model is furnished with special-purpose reading matter, is provided with bar code in the special-purpose reading matter, prestores a large amount of speech datas in the storage chip, the corresponding bar code of each speech data.In use, enter mode of learning by menu/return key 4, streak gently on selected bar code with noctovisor scan probe 1, by the noctovisor scan 1 issued light signal of popping one's head in bar code is discerned, become electric signal, by 22 decodings of noctovisor scan module, carry out the A/D conversion, be sent to single- chip microcomputer 21,21 pairs of numeral numbers that receive of single-chip microcomputer are inquired about, and find out corresponding speech data as quick as thought from storage chip 28,29, carry out the D/A conversion by single-chip microcomputer 21, become simulating signal, through amplifying, from external receiver J-Horner 19 outputs.Each coding, can be divided into the plurality of sections audio-frequency information, with English is example, and an information encoded comprises a word and several sections example sentences, after single-chip microcomputer 21 accesses voice messaging, only broadcast first section word, LED display 3 shows the Word message of these voice, if select " repetition ", then by determining/repeat key 8, then the voice that just broadcasted can repeat, and literal shows constant; If select " advancing ", then by the key 9 that advances, can broadcast example sentence one voice, this moment, LED display showed the Word message of example sentence one, if select " retreating ", then pressed back spacer 10, the segment information before can hearing; If select once more " advancing ",, can hear next example sentence two, by that analogy then by the key 9 that advances.The voice segments end of a year or month under this coding holds, and LED display 2 is shown as: " on earth ", this moment is invalid by the key 9 that advances.Press back spacer 10, got back to first section after, as pressing back spacer 10 again, LED display 2 is shown as: " to having pushed up ", again by invalid.
In study, by last navigation key 7, down navigation key 11 can be set the speed of speech speed, after the setting, push advance, retreat, repeat key, all by the word speed broadcast after setting.After entering scanning next time, recover normal word speed automatically.In study, push recording/stop key 6, LCD display 2 shows " recording ", learner's pronunciation can be noted, press recording/stop key 6 once more, LCD display 2 shows " recording is finished ", by broadcast/stop key 5, playback, the learner can hear the pronunciation of oneself from external earphone, by determining/repeat key 8, plays the teaching material received pronunciation, can compare with learner's pronunciation repeatedly, to improve results of learning.When pressing record button 6 once more, last time recording was removed automatically.
After the scanning, because of a variety of causes can not be discerned, as bar code pollution, non-special-purpose bar code etc., LED display 2 is shown as: " can not discern ".
By menu/return key 4, can enter audio mode, can in storage chip 28,29, deposit the audio file of MP3, WMA form in, can be the song of the language of learning, also text is read aloud, push advance, back spacer 9,10, can from LCD display 2, choose filename fast, after choosing, by broadcast/stop key 5, single-chip microcomputer 21 finds this document according to instruction from storage chip 28,29, amplify through signal, voice broadcast from earphone 19, show synchronously from LCD display 2 with the voice word information relates.By upper and lower navigation key 7,11, the speed of scalable current speech speed.By determining/repeat key 8, but that A/B grabs speech is re-reading.
By menu/return key 4, can enter recording mode, under recording mode, by broadcast/stop key 5, can play the recording file in the storage chip 28,29, by recording/Pause key 6, LCD display 2 can be pointed out file storage location to be recorded " USB flash disk or SD card ", after determining by upper and lower navigation key 7,11, affirmation/repeat key 8, LCD display 2 can prompting " be prepared recording ", and enter recording state, by recording/Pause key 6, can suspend recording once more, again by recording/Pause key 6, restart recording, press menu/return key 4, stop and preserving the file of recording.
By menu/return key 4, can enter FM FM radio pattern, by advance, back spacer 9,10, can in different radio reception channels, switch.
By menu/return key 4, can enter the pattern of setting, determine (repetitions) key 7,8,9,10,11 by upper and lower, forward and backward navigation key, can be to audio, play mode, literal, time, regularly, demonstration, disk, system etc. select setting.
By eight character keys 15, can show corresponding character according to different input method LED display 2, can remove incorrect character by clear key 14.By determining/repeat key 8 that box body 20 interior 21 pairs of character informations of single-chip microcomputer are inquired about, thereby find corresponding coding to broadcast voice and character information.
The power module 31 in addition that is connected with described single-chip microcomputer 21, the power supply of this machine is a built-in joint 3.7V lithium battery.Be provided with USB/ external power interface 16 in the rear end of box body 20, external power supply converts direct supply to and inserts from external power interface 16 through external voltage stabilizer, replaces powered battery.
Shown in Fig. 4 cpu circuit figure of the present utility model, U4 is a SPDA2000D-128 single-chip microcomputer 21 among the figure.
Shown in the circuit diagram of Fig. 5 the utility model storer, U6 is NAND FLASH among the figure, and U8 is SD FLASH.
As the circuit diagram of Fig. 6 FM radio reception of the present utility model module, U9 is the radio reception module among the figure, and this model is DS2420S01.