CN202795792U - Digital voice learning machine - Google Patents
Digital voice learning machine Download PDFInfo
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- CN202795792U CN202795792U CN 201220390252 CN201220390252U CN202795792U CN 202795792 U CN202795792 U CN 202795792U CN 201220390252 CN201220390252 CN 201220390252 CN 201220390252 U CN201220390252 U CN 201220390252U CN 202795792 U CN202795792 U CN 202795792U
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Abstract
The utility model relates to a digital voice learning machine, comprising a housing, a key on the housing and a circuit encapsulated inside the housing, wherein the circuit comprises a learning machine master control chip; the output end of the learning machine master control chip is connected with a reception module; the reception module is coupled to a frequency modulation (FM) signal through an external antenna; the output end of the reception module is connected with a power amplifier chip; the power amplifier chip is connected with an earphone interface circuit and a speaker or one of the earphone interface circuit and the speaker, and the learning machine master control chip is connected with the power amplifier chip through a digital-analogue conversion module. The digital voice learning machine can synchronously display the content of a text when playing the text through a memory card, has an audio and video synchronizing function, can receive the FM signal through the reception module and the external antenna, outputs the FM audio frequency after being driven through the power amplifier chip, and meets different operating requirements. The learning machine master control chip is powered by a lithium cell, is simple and compact in structure, convenient to use, and wide in application range, and meets different operating requirements of the learning machine.
Description
Technical field
The utility model relates to a kind of learning machine, and especially a kind of digital speech learning machine belongs to the technical field of pronunciation-learning system.
Background technology
Existing common MP3 player can only be play MP3, do not possess re-reading, with read, the learning functionality such as contrast, can not satisfy the needs of language learning; And common tape language repeater can not the display video literal, volume is large, single cassette deposit content limited, can't with the computer swap data.Simultaneously, existing learning machine can't satisfy specific needs without FM radio.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of digital speech learning machine is provided, and it is simple and compact for structure, and is easy to use, satisfies the different request for utilizations of learning machine, wide accommodation.
According to the technical scheme that the utility model provides, described digital speech learning machine comprises the button on housing, the housing and is encapsulated in the interior circuit of housing that described circuit comprises the learning machine main control chip; The output terminal of described learning machine main control chip links to each other with the radio reception module, and described radio reception module is by external antenna coupling FM signal, and the output terminal of radio reception module links to each other with power amplifier chips, described power amplifier chips frames connecting with headphone interface circuit, loudspeaker the two or one; The learning machine main control chip links to each other with power amplifier chips by D/A converter module.
Described learning machine main control chip links to each other with the SPI-FLASH module that is used for storage system program and recorded speech information.
Described learning machine main control chip is connected with USB interface or Mini USB interface.
The power end of described learning machine main control chip links to each other with lithium battery by power management module, and the learning machine main control chip is crossed USB interface and linked to each other with power management module.
Described learning machine main control chip links to each other with liquid crystal display and LED-backlit module.
Described learning machine main control chip links to each other with the SD deck.
Advantage of the present utility model: when playing text, energy simultaneous display text content possesses sound, audio video synchronization function by storage card; Replace tape deck with SD card (or other small size electronic memory card or storage mediums) deck, be easy to carry so that small product size is small and exquisite, SD card canned data capacity is more than large many of tape simultaneously; The giant-screen LCD display that is equipped with is effectively alleviated the kopiopia of using of the long-time study of user; Can receive the FM signal by radio reception module and external antenna, output FM audio frequency satisfies different request for utilizations after driving by power amplifier chips; The learning machine main control chip adopts lithium battery to power, and is simple and compact for structure, easy to use, satisfies the different request for utilizations of learning machine, wide accommodation.
Description of drawings
Fig. 1 is the structured flowchart of circuit in the utility model.
Fig. 2 is the schematic diagram of the utility model learning machine main control chip part.
Fig. 3 is the schematic diagram of the utility model radio reception module.
Fig. 4 is the schematic diagram of the utility model power amplifier chips.
Fig. 5 is the schematic diagram of the utility model SPI-FLASH.
Fig. 6 is the schematic diagram of the utility model battery management module.
Fig. 7 is a kind of enforcement schematic diagram of the utility model button.
Fig. 8 is that the another kind of the utility model button is implemented schematic diagram.
Description of reference numerals: 1-earphone interface circuit, 2-liquid crystal display, 3-LED backlight module, 4-SPI-FLASH module, 5-USB interface, 6-SD deck, 7-lithium battery, 8-power management module, 9-learning machine main control chip, 10-D/A converter module, 11-power amplifier chips, 12-loudspeaker, 13-external antenna, 14-radio reception module, 15-button and 16-microphone.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
The utility model is a kind of support sound, audio video synchronization, and possesses the card insert type pronunciation-learning system of phonetic study, music, digital recording function, simultaneously, can also carry out FM broadcasting and listen to, and satisfies the different user demands of pronunciation-learning system, wide accommodation.
As shown in Figure 1: digital speech learning machine of the present utility model comprises housing, button 15 on the housing and be encapsulated in circuit in the housing, wherein, can realize supporting sound except comprising having now in the circuit, audio video synchronization, and possesses phonetic study, music, outside the part of digital recording function, also comprise FM radio reception module 14, described radio reception module 14 links to each other with learning machine main control chip 9, radio reception module 14 is by the external antenna 13 FM signal that is coupled, radio reception module 14 links to each other with power amplifier chips 11, power amplifier chips 11 frames connecting with headphone interface circuits 1, loudspeaker 12 the two or one, learning machine main control chip 9 links to each other with power amplifier chips 11 by D/A converter module 10.Learning machine main control chip 9 drives power amplifier chips 11 by D/A converter module 10 after receiving the FM signals by radio reception module 14, exports by loudspeaker 12 or the earphone that links to each other with earphone interface circuit 1 after the FM signal drives by power amplifier chips 11.
The utility model circuit learning owner is controlled chip 9 and is linked to each other with liquid crystal display 2 and LED-backlit module 3, can the corresponding video content of simultaneous display by LED-backlit module 3 and liquid crystal display 2.Learning machine main control chip 9 links to each other with SPI-FLASH module 4, by SPI-FLASH module 4 storage system programs and the voice messaging recorded.Microphone 16 links to each other with learning machine main control chip 9, voice messaging can be input in the learning machine by microphone 16, after 9 pairs of voice signal sampling processing of learning machine main control chip, can be stored in the SPI-FLASH module 4.The power end of learning machine main control chip 9 links to each other with lithium battery 7 by power management module 8, power management module 8 can be regulated the charge and discharge state of lithium battery 7, learning machine main control chip 9 links to each other with power management module 8 by usb 1 or Mini USB interface, utilizes usb 1 or Mini USB interface conveniently and between PC or other electronic equipments to carry out required data transmission.
Learning machine main control chip 9 also links to each other with SD deck 6, is complementary from different storage card by SD deck 6, reads different voice or video content.According to the difference of the storage card that will use, such as at present common SD card, CF card, mmc card, xD card, MS card, MSD card, MSDP card, RS-MMC card, T-Flash card, Mini-SD card etc., the utility model can be equipped with different decks and interface circuit.
(this is just for the anti-raw content of wiping can to publish the SD card of read-only form such as publishing house, non-read-only card also can use), the text content is stored on it, the student will block in the insertion language repeater deck, use learning machine of the present utility model to carry out audio-visual synchronization broadcast (video can be pure words or band image), re-reading, and can not only realize the function of existing magnetic tape type language repeater with reading recording, also will be re-reading or with the audio fragment of reading and the broadcast of original audio video synchronization.The content of playing is mainly derived from external storage card, and built-in jumbo storer is used for store video/audio frequency unlike the players such as mp3, mp4.
As shown in Figure 2: described learning machine main control chip 9 adopts the micro-chip processor of APA010, and the micro-chip processor of APA010 provides the clock of work by crystal oscillator Y1.As shown in Figure 3: be the schematic diagram of radio reception module 14 of the present invention; Radio reception module 14 adopts the chip of RDA5807SP1080/5807, and radio reception module 14 provides the clock of work by crystal oscillator Y2, and crystal oscillator Y1 is identical with the clock frequency of crystal oscillator Y2 work, and namely learning machine main control chip 9 and radio reception module 14 are operated in same clock frequency.As shown in Figure 4: be the circuit theory diagrams of the utility model power amplifier chips 11.It is the chip of ETK4863-SOP16 that power amplifier chips 11 adopts model, cooperatively interacts by above-mentioned three partial circuits, realizes the driver output to voice signal, vision signal.As shown in Figure 5: be the circuit theory diagrams of the utility model SPI-FLASH module 4, SPI-FLASH module 4 adopts the W25Q16 chip of model.As shown in Figure 6: be the circuit theory diagrams of the utility model power management module 8, it is the chip of LTC4054 that power management module 8 adopts model.As shown in Figure 7 and Figure 8: be the synoptic diagram of the utility model button 15, button 15 comprises two groups, and one group is ADKEY1, and another group is closed by two assembly for ASKEY2, realizes the operation to whole pronunciation-learning system.
When playing text, energy simultaneous display text content possesses sound, audio video synchronization function to the utility model by storage card; Replace tape deck with SD card (or other small size electronic memory card or storage mediums) deck, be easy to carry so that small product size is small and exquisite, SD card canned data capacity is more than large many of tape simultaneously; The giant-screen LCD display that is equipped with is effectively alleviated the kopiopia of using of the long-time study of user; Can receive the FM signal by radio reception module 14 and external antenna 13, output FM audio frequency after driving by power amplifier chips 11 satisfies different request for utilizations; Learning machine main control chip 9 adopts lithium battery 7 to power, and is simple and compact for structure, easy to use, satisfies the different request for utilizations of learning machine, wide accommodation.
Claims (6)
1. a digital speech learning machine comprises the button (15) on housing, the housing and is encapsulated in the interior circuit of housing, and described circuit comprises learning machine main control chip (9); It is characterized in that: the output terminal of described learning machine main control chip (9) links to each other with radio reception module (14), described radio reception module (14) is by external antenna (13) coupling FM signal, the output terminal of radio reception module (14) links to each other with power amplifier chips (11), described power amplifier chips (11) frames connecting with headphone interface circuit (1), loudspeaker the two or one; Learning machine main control chip (9) links to each other with power amplifier chips (11) by D/A converter module (10).
2. digital speech learning machine according to claim 1 is characterized in that: described learning machine main control chip (9) links to each other with the SPI-FLASH module (4) that is used for storage system program and recorded speech information.
3. digital speech learning machine according to claim 1, it is characterized in that: described learning machine main control chip (9) is connected with USB interface (5) or Mini USB interface.
4. digital speech learning machine according to claim 1, it is characterized in that: the power end of described learning machine main control chip (9) links to each other with lithium battery (7) by power management module (8), and learning machine main control chip (9) links to each other with power management module (8) by USB interface (5).
5. digital speech learning machine according to claim 1, it is characterized in that: described learning machine main control chip (9) links to each other with liquid crystal display (2) and LED-backlit module (3).
6. digital speech learning machine according to claim 1, it is characterized in that: described learning machine main control chip (9) links to each other with SD deck (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390252 CN202795792U (en) | 2012-08-08 | 2012-08-08 | Digital voice learning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390252 CN202795792U (en) | 2012-08-08 | 2012-08-08 | Digital voice learning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202795792U true CN202795792U (en) | 2013-03-13 |
Family
ID=47823006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390252 Expired - Fee Related CN202795792U (en) | 2012-08-08 | 2012-08-08 | Digital voice learning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202795792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935352A (en) * | 2015-04-27 | 2015-09-23 | 华南农业大学 | Reception device for wireless teaching |
-
2012
- 2012-08-08 CN CN 201220390252 patent/CN202795792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935352A (en) * | 2015-04-27 | 2015-09-23 | 华南农业大学 | Reception device for wireless teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140808 |
|
| EXPY | Termination of patent right or utility model |