CN2062095U - Multi-function recorder language learning device - Google Patents

Abstract

The utility model relates to the multi-function language learning device of a recorder for automatic sentence division. The utility model is characterized in that a language automatic oscillator for sentence division is connected between a language sensor amplifier and a rectification power supply unit. The function of automatic sentence division is completed through an output socket L connected with the alternating current power supply of 220V of a radio-receiver recorder. Thereby, the utility model can be directly matched with the radio-receiver recorder without reforming of the radio-receiver recorder. Language automatic sentence division display can be implemented for the radio-receiver recorder. Following read and dictation are convenient. Meanwhile, the multi-function language learning device of a recorder for automatic sentence division also has the functions of correction of language pronunciation, memory reinforcement, and stutter curing and has a significant effect on enhancing language ability, such as the listening and saying ability of English.

Description

Multi-function recorder language learning device

The utility model relates to a kind of partition sentence automatically multifunctional learning instrument of sound-track engraving apparatus.

At present commercially available ordinary language study equipment such as sound-track engraving apparatus and the language memory booster is made up of language sensor amplifier, earphone output socket, direct supply etc. do not have the function of partition sentence automatically broadcast language, make people language learning for example English when reading or dictating, need stop, open, fall machine repeatedly, this has not only wasted the mechanical part of time and fragile sound-track engraving apparatus, and easily cause study notice transfer and dispersion, destroy continuity in the thinking memory, influence results of learning, the reduction learning efficiency.

The utility model provides a kind of sound-track engraving apparatus partition sentence automatically multifunctional language learning instrument that can avoid above-mentioned phenomenon learning efficiency to occur and can obviously strengthen.Be characterized between language sensor amplifier and dc power supply, being connected to a language partition sentence automatically oscillator, thereby do not need existing radio cassette player is done any change, can carry out the language partition sentence automatically and play, stayed behind its subordinate sentence with reading or the dictation time is regulated automatically by the length of broadcasting statement.The utility model also has functions such as language pronouncing correcting instrument, memory booster, stutter therapeutic equipment.

Fig. 1 is a principle schematic of the present utility model.

Fig. 2 is an enforcement circuit diagram of the present utility model.

Referring to Fig. 1, principle of the present utility model is such, the 3rd, and language sensor amplifier, the 4th, earphone output socket, the 5th, signal input socket, the 7th, partition sentence automatically oscillator, the 6th, commutation supply voltage device.By language sensor amplifier 3 output of earphone output socket 4 as functions such as memory enhancings is defeated by in the speech signal amplification, even cooperating a sound channel of back stereophone with signal input socket 5 is spontaneous tone signal, another sound channel is the Received Pronunciation of input, by comparing simultaneously, finish the phoniatrics function, also the speech signal that amplifies is defeated by language partition sentence automatically oscillator 7 simultaneously, carries out input and pass through control and radio cassette player 220 by language partition sentence automatically oscillator 7

The output socket L that AC power is joined finishes the partition sentence automatically control function.

Referring to Fig. 2, function of the present utility model is to realize like this.The sensing of speech signal is by microtelephone MIC and biasing resistor R ₁Form.Signal amplifying part is divided can adopt general any audio amplifier circuit.That this enforcement circuit adopts is power amplifier integrated circuit LM386, its objective is that peripheral circuit is simple, debugging is convenient, and frequency response is good, tonequality is high.The statement sound signal that the radio cassette player that is obtained by microtelephone MIC is play is through coupling capacitance C ₁Input to the tripod of integrated circuit LM386.Capacitor C ₂, resistance R ₂Be feedback usefulness, capacitor C ₃, resistance R ₃For decoupling is used.Pass through capacitor C by the sound signal after the integrated circuit LM386 amplification ₁₃Output, earphone output socket 4, R are defeated by in the one road ₅Be protective resistance.Binary channels parallel connection on the earphone output socket 4 at this moment by the normally closed contact of input signal socket 5, thus two passages of stereophone all have the identical sound signal sound.Its another road sound signal is defeated by language partition sentence automatically oscillator 6.Language partition sentence automatically oscillator 7 is the resistance R that linked to each other by the output terminal with language sensor amplifier 3 ₄And capacitor C ₄Mutually behind the polyphone, again with diode D ₁Negative terminal and triode BG ₁Base stage join.D ₁Anode and triode BG ₁Emitter-base bandgap grading meet commutation supply voltage device 6 negative poles, triode BG ₁Collector and time-base integrated circuit 555IC ₂The 6th pin and capacitor C ₅Anode and resistance R ₆Link to each other.Integrated circuit (IC) ₂The 8th pin and the 4th pin and resistance R ₆The other end link to each other with the positive pole of commutation supply voltage device 6, its first pin connects commutation supply voltage device 6 negative poles, is connected to resistance R between the 7th pin and the 2nd pin ₈, be connected to resistance R between the 7th pin and charger 6 positive poles ₇, between the 2nd pin and commutation supply voltage device 6 negative poles, be connected to capacitor C ₆, diode D ₂D ₃D ₄Connect afterwards and capacitor C with button P ₆Parallel connection is connected to resistance R between the 3rd pin and the 5th pin ₉With potentiometer W ₁The serial Feedback circuit of being formed is connected to capacitor C between the 5th pin and the commutation supply voltage device ₈, integrated circuit (IC) ₂The 3rd pin and triode BG ₂Base stage between series resistor R ₁₀With luminotron LED, triode BG ₂Emitter connect the negative pole of commutation supply voltage device 6, be connected to relay J between its collector and commutation supply voltage device 6 positive poles, the normally opened contact JK of relay J and 220 of control radio cassette player

AC power output socket L series connection is constituted.As triode BG ₁Base stage do not have signal when input, be in cut-off state, this moment ic 555 IC ₂Trigger end the 6th pin do not have trigger pip, integrated circuit (IC) ₂The high-low level of output terminal tripod change and to pass through resistance R ₉And W ₂Feed back to integrated circuit (IC) ₂The 5th pin make it be in oscillatory regime.As triode BG ₁Base stage signal when input, then triode BG are arranged ₁Conducting, integrated circuit (IC) ₂The 6th pin be triggered and failure of oscillation, its 3rd pin is in noble potential, passes through resistance R ₁₀Make triode BG with LED ₂Place's conducting state, the contact JK adhesive of relay J, and offer radio cassette player 220 by alternating current output socket L

Alternating current, the radio cassette player playback.Once the language of putting has time between sentence during the space, through resistance R ₆, capacitor C ₅Time-delay, integrated circuit (IC) ₂The 6th pin triggered by the rising current potential again, the counter-rotating of its state, then the 3rd pin is in electronegative potential, triode BG ₂End, the contact JK of relay J disconnects, by with radio cassette player 220

The output socket L that AC power is joined disconnects the radio cassette player power supply, and the radio cassette player playback stops, simultaneously integrated circuit (IC) ₂Discharge end the 7th pin and the 6 negative pole conductings of commutation supply voltage device, capacitor C ₆Pass through resistance R ₈Discharge is because resistance R ₈Resistance＞＞resistance R ₇So, capacitor C ₆The time of discharging and recharging be identical, make time that playback stops identical with the preceding time of broadcasting statement.Capacitor C then ₆Current potential less than integrated circuit (IC) ₂The threshold values of trigger end the 2nd pin, integrated circuit (IC) ₂State overturn again, cause the relay J adhesive, reciprocal according to this, this is well suited for the needs of speech follow read and dictation, R ₁₁It is current-limiting resistance.Diode D ₂D ₃D ₄With button P is to be provided with for manual.When pressing the button, make capacitor C ₆On current potential be lower than integrated circuit (IC) ₂Trigger end crus secunda threshold values, make its tripod output noble potential, triode BG ₂Conducting, the relay J adhesive is powered to radio cassette player.Commutation supply voltage device 6 is common stabilized voltage supplys, 220 Alternating current is after rectification, again by triode BG ₃Be direct current output after the stabilivolt DW voltage stabilizing.Capacitor C ₉C ₁₀C ₁₁Be filter capacitor, capacitor C ₁₂Usefulness for the contact spark that disappears.

Errorless by the welding of above-mentioned enforcement circuit, reinstall in the shell 1, through power lead 2 energized, need not debug can with the direct adapted of radio cassette player, promptly 220 of radio cassette player

The plug of power lead inserts 220 on the shell 1 Among the alternating current output socket L,, and make microtelephone MIC can carry out the continuous working of language partition sentence automatically near the loudspeaker of radio cassette player with the tape playback in the radio cassette player.

Claims (2)

1, the utility model relates to a kind of wireless partition sentence automatically multifunctional language learning instrument, it comprises shell 1, power lead 2, language sensor amplifier 3, earphone output socket 4, signal input socket 5, commutation supply voltage device 6 is characterized in that also being connected between language sensor amplifier 3 and the commutation supply voltage device 6 a language partition sentence automatically oscillator 7.

2, sound-track engraving apparatus partition sentence automatically multifunctional language learning instrument according to claim 1, its feature is that also language partition sentence automatically oscillator 7 is the resistance R that linked to each other by the output terminal with language sensor amplifier 3 ₄And capacitor C ₄Mutually behind the polyphone, again with diode D ₁Negative terminal and triode BG ₁Base stage join D ₁Anode and triode BG ₁Emitter-base bandgap grading meet commutation supply voltage device 6 negative poles, triode BG ₁Collector and time-base integrated circuit 555IC ₂The 6th pin and capacitor C ₅Anode and resistance R ₆Link to each other integrated circuit (IC) ₂The 8th pin and the 4th pin and resistance R ₆The other end link to each other with the positive pole of commutation supply voltage device 6, its first pin connects commutation supply voltage device 6 negative poles, is connected to resistance R between the 7th pin and the 2nd pin ₈, be connected to resistance R between the 7th pin and charger 6 positive poles ₇, between the 2nd pin and commutation supply voltage device 6 negative poles, be connected to capacitor C ₆, diode D ₂D ₃D ₄Connect afterwards and capacitor C with button P ₆Parallel connection is connected to resistance R between the 3rd pin and the 5th pin ₉With potentiometer W ₁The serial Feedback circuit of being formed is connected to capacitor C between the 5th pin and the commutation supply voltage device ₈, integrated circuit (IC) ₂The 3rd pin and triode BG ₂Base stage between series resistor R ₁₀With luminotron LED, triode BG ₂Emitter connect the negative pole of commutation supply voltage device 6, be connected to relay J between its collector and commutation supply voltage device 6 positive poles, 220 of the normally opened contact JK control radio cassette player of relay J

AC power output socket L series connection is constituted.

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