CN2395470Y

CN2395470Y - Auxiliary device of telephone set

Info

Publication number: CN2395470Y
Application number: CN 99238774
Authority: CN
Inventors: 谢振华; 黄钜江; 倪建明
Original assignee: Shenzhen Zhong Jing Seiko Electronic Co Ltd; Civil Aviation Zhongnan Air Traffic Equipment Engineering Co
Current assignee: Shenzhen Zhong Jing Seiko Electronic Co Ltd; Civil Aviation Zhongnan Air Traffic Equipment Engineering Co
Priority date: 1999-09-21
Filing date: 1999-09-21
Publication date: 2000-09-06
Anticipated expiration: 2009-09-21

Abstract

The utility model relates to an auxiliary device of a telephone set, which comprises a shell and is characterized in that the utility model is also provided with a line switching circuit, a bridge rectifier circuit, a speech processing circuit, earphones, and a microphone. The line switching circuit is connected to an input and an output line of a telephone, the output is connected with the speech processing circuit through the bridge rectifier circuit, and the speech processing circuit is respectively connected with the earphones and the microphone. The utility model can be used for sending and receiving speech by using an ear receiver and a microphone in replacement with an original telephone set, so that people can do other jobs with two hands freely while sending and receiving speech. The utility model has the advantages of convenient assembly and disassembly and simple circuit, and people can maintain good postures while making a telephone call to enhance work efficiency. The utility model is suitable for customer service centers, traffic service telephones and general families.

Description

The telephone set assistor

The utility model relates to a kind of assistor, particularly a kind of telephone set assistor.

Answer a call in the limit to often needing, the people of (as record, kbhit) is done on the limit by hand, because its posture of making a phone call is regular incorrect, can cause the grievous injury on the health, as muscle, bone equivalent damage.As make telephonic hand-free function, then the environmental noise interference is very big, and leaks dialog context easily.

The purpose of this utility model is to provide a kind of ear receiver, microphone of using to replace original telephone to receive and dispatch words, makes the people do the telephone set assistor of other work freely at transmitting-receiving words while energy both hands.

The purpose of this utility model can reach by following measure: the utility model comprises housing, it is characterized in that: also have circuit commutation circuit, bridge rectifier, speech processing circuit, earphone, microphone, the circuit commutation circuit is connected on phone input, the outlet line, its output is joined by bridge rectifier and speech processing circuit, and speech processing circuit links to each other with earphone and microphone respectively.

The purpose of this utility model can also reach by following measure: circuit diverter switch K1, ringing pilot lamp D7, relay indicating light D10, earphone/socket K2 are loaded on the panel of housing.The end of circuit diverter switch K1 and phone input, outlet line join, the negative pole of the positive pole of diode D3, D6 joins in the other end and the bridge rectifier, the negative pole of D3, D4 joins by 1 pin of integrated circuit U1 in resistance R 14 and the speech processes phone, 15 pin of U1 join by 1 pin of resistance R 1 with U1, the negative pole of D3, D4 also joins by 1 pin of resistance R 14, R8, capacitor C 3 and U1,5 pin of U1 join by capacitor C 10, socket K2 and earphone, and microphone joins by 8 pin of socket K2, capacitor C 9, resistance R 4 and U1.

Fig. 1 is a functional-block diagram of the present utility model;

Fig. 2 is a contour structures stereogram of the present utility model;

Fig. 3 is a contour structures rearview of the present utility model;

Fig. 4 is an electrical schematic diagram of the present utility model.

With reference to Fig. 1～Fig. 3, the utility model is made up of housing 1, bridge rectifier 2, speech processing circuit 3, earphone 4, microphone 5, circuit commutation circuit 6 etc.Circuit diverter switch K1, earphone/socket K2, ringing pilot lamp D7, relay indicating light D10 are housed on the panel of housing 1; Socket K3 and telephone line on housing 1 back cover join, and socket K4 and telephone set join.

Among Fig. 4, " LINE A IN " and " LINE B IN " is line input, and when not using this device, K1 is a short-circuit condition, line input directly is linked to line output " LINEA OUT " and " LINE B OUT ", and the telephone that is connected on line output can use as usual.

When on the circuit bell signal being arranged, bell signal makes D7 luminous by C14.Use this device as need, can press K1, be short-circuit condition, this moment, telephone set was equivalent to the off-hook of unit, direct current composition on the circuit is added in 15 pin of integrated circuit U1 by D3～D6, R14 and R1, and operating voltage is provided, and wherein C7, C8 are that filter capacitor, D10 are relay indicating light.At this moment, the voice signal of reception is added in 11 pin of U1 by D3～D6, R14, R8 and C3, delivers to 5 pin of U1 by the reception amplifier in the U1, outputs to earphone by capacitor C 10 again.Wherein R5, C11, C12 are feedback network, and D1, D2 are the output violent change circuit.Microphone provides direct current biasing by R5, and the voice of giving orders or instructions are by microphone, and C9, R4 deliver to 8 pin of U1, deliver to 1 pin of U1 behind the transmit amplifier in U1, deliver on the telephone line through R4, D3～D6 again.Wherein C5, C6, R9～R13 and C4, R3 are feedback network, and control sends the gain of signal.

As using this device to get phone, can be with earphone, microphone, press circuit diverter switch K, mention the phone of original phone then, microphone is put back in dialing behind closing of the circuit, and its Principle of Communication is identical when receiving calls.

The utility model has following advantage compared to existing technology:

1, can use ear receiver, microphone to replace original telephone to receive and dispatch words, Make the people in the transmitting-receiving words, can do freely other work by both hands, be applicable in the customer service The heart, traffic hot line and general family.

2, need not change original call machine internal circuit, not affect the normal use of original telephone set, And mounting or dismounting are convenient, and circuit is simple, can make the people keep good posture when making a phone call, and improve Operating efficiency.

Claims

1, a kind of telephone set assistor, comprise housing (1), it is characterized in that: also have circuit commutation circuit (6), bridge rectifier (2), speech processing circuit (3), earphone (4), microphone (5), circuit commutation circuit (6) is connected on phone input, the outlet line, its output is joined by bridge rectifier (2) and speech processing circuit (3), and speech processing circuit (3) links to each other with earphone (4) and microphone (5) respectively.

2, assistor according to claim 1 is characterized in that: circuit diverter switch K1, ringing pilot lamp D7, relay indicating light D10, earphone/socket K2 are loaded on the panel of housing (1).

3, assistor according to claim 1, it is characterized in that: the end of circuit diverter switch K1 and phone input, outlet line joins, the positive pole of diode D3 in the other end and the bridge rectifier, the negative pole of D6 joins, D3, the negative pole of D4 joins by 1 pin of resistance R 14 with the middle integrated circuit U1 of speech processes phone (3), 15 pin of U1 join by 1 pin of resistance R 1 with U1, D3, the negative pole of D4 is also by resistance R 14, R8,1 pin of capacitor C 3 and U1 joins, 5 pin of U1 are by capacitor C 10, socket K2 and earphone (4) join, and microphone (5) is by socket K2, capacitor C 9,8 pin of resistance R 4 and U1 join.