CN2489525Y

CN2489525Y - Sound converter for hand-held telephone

Info

Publication number: CN2489525Y
Application number: CN 01240720
Authority: CN
Inventors: 黄建南
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-01
Filing date: 2001-06-01
Publication date: 2002-05-01
Anticipated expiration: 2011-06-01

Abstract

The utility model relates to a sounder converter for a mobile phone, which is composed of a circuit which is characterized in that when a sounder, a mobile phone and a hand-free earphone are respectively connected with a sounder interface, a mobile phone interface and an earphone jack of the circuit, in the beginning, the sounder is communicated with the earphone; when the mobile phone has signals, the circuit can automatically identify the incoming call and cut off the sounder signals immediately, a mobile phone channel is switched on, and a hand-free call is realized. When the call is finished, a finishing switch is pressed so that the telephone channel is switched off; a reset switch is pressed again, and a sounder channel is communicated again. The utility model has the advantages of simple structure and easy usage, and can be widely used in car sounder, portable CD, MD, etc.

Description

The mobile phone acoustic transducer

The utility model relates to electronic product, especially relates to sound equipment and the mobile phone connector of conversion automatically.

The purpose of this utility model is to disclose a kind of simple mobile phone acoustic transducer, be connected with sound equipment, mobile phone, Earphone with microphone with it, it has such function: when listening sound equipment, when telephone signal, it can cut off the sound equipment path automatically and connect telephone channel, realize hand-free call, talk-through realizes that by button operation on-hook and sound equipment reset.

The purpose of this utility model can be realized that the feature of this circuit is to have sound equipment interface, mobile phone interface, earphone interface, phone take-up key switch and sound equipment reset key switch and some electronic components formation by a circuit board.The functional character of this circuit is described by following should being used for:

When using the utility model, sound equipment interface, mobile phone interface, earphone interface are pegged graft with sound equipment, mobile phone, earphone respectively, sound equipment and earphone are connected during beginning, listen to the music, when the mobile phone signal was imported, this circuit can be discerned and acoustic signal be cut off automatically, connect the mobile phone path, realize hand-free call, talk-through clicks the take-up button, on-hook, click reset key again, reclose the sound equipment path, earphone is heard the sound equipment music again.

This schematic block circuit diagram mainly is made up of conversion switch circuit 1, ring identification treatment circuit 2, control circuit 3 and sound equipment interface, mobile phone interface, earphone interface and phone take-up switch, sound equipment reset switch as shown in Figure 1.

Come the utility model is further described below by embodiment:

Fig. 1 is an application schematic diagram of the present utility model;

Fig. 2 is a line principle block diagram of the present utility model;

Fig. 3 is a line design instance graph of the present utility model.

As Fig. 2, shown in Figure 3, Q1, Q2, D1～D6 form conversion switch circuit 1, C1, Q4, C2, D7, D8, Q5 form ring identification treatment circuit 2, Q6, Q7 form control circuit 3, on conversion switch circuit 1, be provided with sound equipment interface J1, mobile phone interface J2, hands-free headset interfaces J3, ring identification treatment circuit 2 is connected with control circuit 3 with the incoming line of mobile phone, control circuit 3 is connected with conversion switch circuit 1, sound equipment reset switch K2 is arranged on the control circuit 3, and phone take-up K switch 1 is arranged on the hand-free call microphone lines.

The utility model is by having realized the automatic conversion merit of mobile phone and sound equipment once simple circuit Can, have characteristics easy to use, can be widely used in automobile audio, portable CD, MD etc.

Claims

1, mobile phone acoustic transducer is made of a circuit, and the feature of this circuit is to have sound equipment interface, mobile phone interface, hands-free headset interfaces, phone take-up switch and sound equipment reset switch and some electronic components formation, and the functional character of this circuit is:

When with sound equipment interface, mobile phone interface, earphone interface respectively with sound equipment, mobile phone, when Earphone with microphone is connected, at first be that sound equipment and earphone are connected, when mobile phone had signal, this circuit can be discerned incoming call automatically and at once acoustic signal be cut off, and the mobile phone path is connected, realize hand-free call, talk-through clicks the take-up switch, disconnects telephone channel, click reset switch again, reclose the sound equipment path.

2, mobile phone acoustic transducer according to claim 1, it is characterized in that: this circuit mainly is made up of conversion switch circuit, ring identification treatment circuit, control circuit and sound equipment interface, mobile phone interface, earphone interface and phone take-up switch, sound equipment reset switch, on the Stereo Switch circuit, be provided with sound equipment interface, mobile phone interface, hands-free headset interfaces, ring identification treatment circuit is connected with control circuit with the incoming line of mobile phone, and control circuit is connected with the Stereo Switch circuit.