CN2357789Y - Sound-producing toy capable of induced transmit-receive signal from handset - Google Patents

Abstract

The utility model relates to a sound emitting toy for inducing received and sent signals of a handset, which has batteries and an induction amplifying output circuit. The utility model is characterized in that the utility model has a capability of inducing the received and sent signals of the handset; the utility model can select step rate 900-1100 MHE signals of the handset; the signals can be amplified to trigger a music integrated chip, and the integrated chip can send out music signals to a speaker for emitting sound.

Description

Induction mobile phone transmitting-receiving signal acoustic toy

Induction mobile phone transmitting-receiving signal acoustic toy belongs to electronic toy, battery is arranged, the toy of induction amplification output circuit.

Present mobile phone transmitting-receiving signal is by the tinkle of bells and fluorescent screen prompting people.And, light big at noise is dark or dysphotia person can influence people and can't hear the tinkle of bells and do not see demonstration, and makes people lose the information of listening to and send the wrong signal, and has wasted the time, has influenced work.

The purpose of responding to mobile phone transmitting-receiving signal acoustic toy (hereinafter to be referred as the induction acoustic toy) is the signal when increasing people's perception mobile phone transmitting-receiving, to avoid can't hear ringing sound of cell phone and the demonstration that does not see the fluorescent screen because of environmental impact causes people.

The scheme that realizes the induction acoustic toy is to use electromagnetic induction to receive the signal that mobile phone sends, and converts sound then to.

The induction acoustic toy implements to see block diagram (Fig. 1): antenna receives signal, and resonance is selected mobile phone and sent frequency, and this signal triggers integrated package outputting music signal through amplifying, and makes loudspeaker send musical sound.

The feature of induction acoustic toy is that induction mobile phone transmitting-receiving signal is arranged; It is the 900-1100MHZ signal that the resonance selection mobile phone sends frequency, and this signal triggers music-integrating block outputting music signal through amplifying; Make loudspeaker send the circuit of music.Circuit is by coil L1 sensor signal, L2, C2 form parallel resonance and select mobile phone frequency (900-1100MHZ), signal is coupled to NPN type pipe G1 base stage through C3, amplify the back signal and connect positive-negative-positive pipe G2 base stage through R3 by the G1 collector, the G2 collector meets music-integrating block SK by R7, and music-integrating block output connects loudspeaker.

Foregoing circuit is made circuit board and is positioned on toy, as: animal, cloth doll, robot, the inside of military weapon etc. just becomes the induction acoustic toy.

Now the induction acoustic toy is described with an embodiment.

Fig. 2 is induction mobile phone transmitting-receiving signal acoustic toy circuit theory diagrams.

The circuit structure (Fig. 2) of induction acoustic toy: antenna L1 induction mobile phone transmitting-receiving signal, selecting frequency by L2, C2 parallel resonance is the mobile phone signals of 900-1100MHE, this faint signal is coupled to NPN type pipe G1 base stage by capacitor C 3, the output of G1 collector is amplified signal through the logical positive-negative-positive pipe G2 base stage of R3, the G2 collector connects the pin 2 of music-integrating block SK (as SK1106, SK1109) through R7, G2 emitter-base bandgap grading and 4 connections of SK pin connect battery B positive pole, resistance R 1 and R2 provide the G1 base voltage, and R3 and R4 influence the current potential of G2 base stage.C4 and R5 form and are close to the road.

This circuit working process is: L1 receives signal, select mobile phone frequency (900-1100MHZ) by L2, C2, G1 amplifies this signal electric current, make the R4 pressure drop strengthen, the G2 conducting, make music-integrating block SK the 2nd pin obtain a trigger voltage, SK the 3rd pin outputting music signal selects different music-integrating blocks just can hear different music to the loudspeaker pronunciation.

Above-mentioned circuit board is installed in toy such as animal, cloth doll, robot, military weapon) just become the induction acoustic toy.

This toy integrates practical and aesthetic feeling, and it is melodious to make the people appreciate the heart.

Claims (1)

1, a kind of induction mobile phone transmitting-receiving signal acoustic toy has battery, and the toy of induction amplification output circuit is characterized in that having induction mobile phone transmitting-receiving signal; The frequency 900-1100MHZ signal that the resonance selection mobile phone sends, this signal triggers music-integrating block outputting music signal through amplifying; Make the circuit of loudspeaker pronunciation: circuit is by coil L1 sensor signal, L2, C2 form parallel resonance and select mobile phone frequency, signal is coupled to NPN type pipe G1 base stage through C3, the G1 collector connects positive-negative-positive pipe G2 base stage through R3, the G2 collector by R7 connect music-integrating block SK (SK1106, SK1109) pin 2, SK pin 3 connects loudspeaker, circuit board is installed in the toy body.

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