CN2298583Y - Recorder with reading repeatedly and follow adapter - Google Patents

Abstract

The utility model provides an auxiliary device for repeated reading and following reading repeatedly which is matched with an ordinary sound recording/playing machine using an AC power supply, and is mainly composed of a casing, a sound recording key, a reading repeating key, a speech recording module, a microphone, a socket for output controlling, a speaker and a power amplifier. Audio signals picked up by the built-in microphone are recorded and outputted by the speech recording module, and the external power supply of the sound recording/playing machine is output control socket, so that the functions of repeated reading and following reading are achieved. The utility model can be widely used in activities of language learning and entertainment.

Description

Recording playback machine is re-reading with reading Mk

The utility model relates to a kind of recording playback machine attachment device, and the recording playback machine that is mainly used in recording playback machine and particularly with the alternating current is power supply is set up re-reading with reading function.

At present, the language learning device is generally recording playback machine and re-reading reading following machine structure is integrated, and it exists the cost height, price is expensive and can't be the shortcoming of other recording playback machine service; For this reason, it is re-reading with reading Mk that people have also invented some recording playback machines, as application number is 97207107.5 utility application, but it only can with the supporting use of recording playback machine that with the direct current is power supply, and can't be for the alternating current being the recording playback machine adequate and systematic service of power supply.

It is a kind of re-reading with reading attachment device that the purpose of this utility model is to provide, with the supporting use of recording playback machine that with the alternating current is power supply, re-reading with reading the existing weak point of Mk to remedy existing language learning device and recording playback machine.

The utility model mainly is made up of shell, record button, repeating key, language recording module, microphone, control accessory power outlet, loudspeaker and amplifirer; Record button, repeating key and control accessory power outlet are arranged on the outside surface of shell, and language recording module, microphone, loudspeaker and amplifirer are positioned in the shell; Record button is connected with re-reading control end with the recording control end of language recording module respectively with repeating key; One of microphone is terminated at the audio signal input end of language recording module, its other end ground connection; The audio output of language recording module links to each other with volume potentiometer through a capacitor, and the tap of this volume potentiometer connects the input end of amplifirer, the output termination loudspeaker of amplifirer; The control output end of language recording module links to each other with the base stage of triode after connecing a resistance, the grounded emitter of this triode, and an end of its collector connecting relay coil, the feeder ear of the other end of relay coil and language recording module is connected to positive source altogether; The indirect diode in the two ends of relay coil; Between relay contact switch and the anode that is connected to bidirectional triode thyristor after a resistance is connected and the control utmost point, connect a capacitor between the control utmost point of bidirectional triode thyristor and the negative electrode, bidirectional triode thyristor with control the two ends that are connected to power plug wire after accessory power outlet is connected; During use, the attaching plug of recording playback machine inserts above-mentioned control accessory power outlet, and power plug wire is connected on the external 220V AC power.Its principle of work is: picked up the audio signal input end of waiting to record signal input language recording module by microphone, behind language recording module record, audio signal output end output from this module, arrive volume potentiometer through a capacitor-coupled, enter amplifirer from the volume potentiometer tap, signal promotes the loudspeaker sounding after amplifirer amplifies.When re-reading when reading, the control signal of language recording module is ended through current-limiting resistance control triode from its output terminal, the relay contact switch that is connected to this transistor collector is disconnected, SCR control utmost point Triggerless, not conducting of controllable silicon, the power supply output of control accessory power outlet unit, recording playback machine stops playback.Meanwhile, the audio signal output end of language recording module is exported the sound signal of its former record, still promotes loudspeaker through above-mentioned capacitor, potentiometer and amplifirer, finishes re-reading with read procedure.Re-reading when reading when cancellation, the control signal output ends output control signal of language recording module makes triode conducting, relay adhesive, the silicon controlled control utmost point has trigger pip, the controllable silicon conducting, the control accessory power outlet has power supply output, thereby recording playback machine is reworked.

The utlity model has simple in structurely, easy to use, can make with the alternating current that to be that the common recording playback machine of power supply increases under the situation of not doing any change re-reading with reading advantage such as function, extensively use language learning and control OK amusement etc.

Description of drawings: Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model electrical schematic diagram.

Below in conjunction with accompanying drawing the utility model is further described:

Record button S2, repeating key S1 and control accessory power outlet XS are arranged on the outside surface of shell 1, and language recording module A (can select the VP-107 type for use), microphone D, loudspeaker SP and amplifirer B (can select the TDA-2822 type for use) are positioned in the shell 1; Record button S2 is connected with re-reading control end e with the recording control end d of language recording module A respectively with repeating key S1; One of microphone D is terminated at the audio signal input end a of language recording module A, its other end ground connection; The audio output b of language recording module A links to each other with volume potentiometer RV behind a capacitor C1, and the tap of this volume potentiometer RV meets the input end g of amplifirer B, and the output terminal h of amplifirer B meets loudspeaker SP; The control output end c of language recording module A connects a resistance R 1 back and links to each other with the base stage of triode V1, the grounded emitter of this triode V1, one end of the collector connecting relay J coil of this triode V1, the feeder ear f of the other end of relay J coil and language recording module A is connected to positive source altogether; Be connected to diode V2 between the two ends of relay J coil; Between relay J contact switch K and the anode that is connected to bidirectional triode thyristor V3 after a resistance R 2 is connected and the control utmost point, sending and receiving one capacitor C2 between the control utmost point of bidirectional triode thyristor V3 and the negative electrode, bidirectional triode thyristor V3 and the two ends that are connected to 220V ac power plug line XP after control accessory power outlet XS connects.

Claims (1)

1, recording playback machine is re-reading with reading Mk, mainly is made up of shell, record button, repeating key, language recording module, microphone, control accessory power outlet, loudspeaker and amplifirer; Record button, repeating key and control accessory power outlet are arranged on the outside surface of shell, and language recording module, microphone, loudspeaker and amplifirer are positioned in the shell; Record button is connected with re-reading control end with the recording control end of language recording module respectively with repeating key; One of microphone is terminated at the audio signal input end of language recording module, its other end ground connection; The audio output of language recording module links to each other with volume potentiometer through a capacitor, and the tap of this volume potentiometer connects the input end of amplifirer, and it waits to levy the output termination loudspeaker that is amplifirer; The control output end of language recording module links to each other with the base stage of triode after connecing a resistance, the grounded emitter of this triode, and an end of its collector connecting relay coil, the feeder ear of the other end of relay coil and language recording module is connected to positive source altogether; The indirect diode in the two ends of relay coil; Between relay contact switch and the anode that is connected to bidirectional triode thyristor after a resistance is connected and the control utmost point, connect a capacitor between the control utmost point of bidirectional triode thyristor and the negative electrode, bidirectional triode thyristor with control the two ends that are connected to power plug wire after accessory power outlet is connected; During use, the attaching plug of recording playback machine inserts above-mentioned control accessory power outlet, and power plug wire is connected on the external 220V alternating current.