CN2355500Y

CN2355500Y - Wireless headweared device for speech learning

Info

Publication number: CN2355500Y
Application number: CN98236300U
Authority: CN
Inventors: 曾宪光
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-02
Filing date: 1998-09-02
Publication date: 1999-12-22
Anticipated expiration: 2008-09-02

Abstract

The utility model relates to a headweared wireless talking device for the speech learning, mainly composed of parts of a transmitting machine, a receiving machine, a decoding device, a speech generator, a return bell producer, a transmitting antenna, a receiving antenna, etc. According to the working principle of a wireless station and the technical design and manufacture of decoding, the utility model can listen speech teaching content in the single direction, as well as can answer questions to go on with talking according to the roll call for dialing teachers. The oral ability of the foreign language is obviously increased. The utility model has the advantages of firm installation structurally, convenient operation, shapely configuration, and high performance price ratio. The utility model is an ideal wireless speech talking learning machine.

Description

Wear-type wireless speech intercommunication learning machine

The utility model belongs to the application of wireless communication technology in the voice electronic teaching.Exactly, it is a kind of wear-type wireless speech intercommunication learning machine.

At present, the wireless speech electronic teaching all is one-way transmission, and promptly teaching machine can only be broadcast voice, and learning machine can only receive voice, can not intercommunication reply between the two.This mode though to improving student's foreign language listening level better action is arranged, does not then have help for improving student's Foreigh-language oral-speech ability.

The purpose of this utility model just is to overcome the deficiency of prior art, operation principle and decoding technique according to radio station, both designed and manufactured and to listen to the phonetic teaching content, and can dial to call the roll by the teacher again and answer a question, carried out the wear-type wireless speech intercommunication learning machine of intercommunication.

Fig. 1 is an external structure schematic diagram of the present utility model.

Fig. 2 is an electric theory diagram of the present utility model.

Fig. 3 is circuit theory diagrams of the present utility model.

From Fig. 1, Fig. 2 and Fig. 3 as can be known, the utility model mainly amplifies single by rf receiver unit [1], audio frequency Unit [2], earphone [3], decoder [4], electronic switch [5], rf transmitter unit [6], ring-back generator [7], voice adder [8], microphone [9], reception antenna [10], transmitting antenna [11], retaining clip [12], Emitter housing [13], earphone sheath [14], support [15], volume controller [16], battery case [17] and Reception casings [18] etc. partly consist of.

Operation principle of the present utility model is as follows:

By the rf receiver unit [1] that 1T1,1T2,1V1 and 1N1 form, its effect is that the radiofrequency signal that will receive through reception antenna [10] is converted to audio signal.Its course of work is, the radiofrequency signal that reception antenna [10] receives is chosen useful signal by 1T1,1T2,1C1--1C4 double-tuned circuit, and deliver to 1V1 after the filtering interfering, through the tuning amplification of 1V1, after handling, become the audio frequency that will receive through Monolithic Receivers circuit 1N1, after the 1V2 of audio amplification unit [2] amplifies, it is leaded up to electric capacity 1C23, potentiometer 1W1 and 1R9 and is connected to 2 pin of 1N2, after row amplifies again by 1N2, be connected to the jack of earphone [3] from the 5 foot meridian capacitor 1C25 of 1N2, decoder [4] is delivered on another road.

By the decoder [4] that N1, N2 and N3 form, its effect is that the coded message that 1N1 handles in the audio signal of back is reduced to code signal.Its course of work is the input that another road audio signal after 1V2 amplifies is delivered to decoder N1, the symbol signal of N1 output is through BCD--10 system transducer N2 conversion 1--10 and #, * code signal, giving this machine code of putting with its X1, X10 end in comparator N3 compares, when these two code signals were identical, the PIN13 of N3 just exported high level.

N4 is ring-back circuit [7], V1 and V3 are electronic switch [5], the 13 pin output high level unlocking electronic switch [5] of N3 in the decoder [4], make VCC=TX6V, rf transmitter unit [6] is started working, 2 pin of N4 in the ring-back generator [7] obtain low level simultaneously, and the audio signal that it is 0.3S that the ring-back circuit produces a duration is fed to audio frequency adder [8], deliver to transmitting antenna [11] and launch after rf transmitter unit [6] modulation is amplified.

The utility model architectural feature can obviously be found out from Fig. 1: transmitter section and receiver section are divided right and left.Earphone [3], electronic switch [5], radio frequency bill unit [6], ring-back generator [7], voice adder [8] are housed in the emission casing [13] on the left side; Microphone [9] places outside the casing, and the input by the voice adder [8] in pipeline and the casing is connected; Transmitting antenna [11] inserts by the casing top and is connected with the output of rf transmitter unit [6]; The reception casing [18] on the right is equipped with rf receiver unit [1], audio frequency amplifies unit single [2], earphone [3], decoder [4], also has 1 battery case [17] in addition; The outside of going up that volume controller [16] 1W1 is installed in casing is connected with the end that the output of the middle 1V2 of the interior audio amplification unit [2] of machine meets electric capacity 1C23, and the centre is connected other end ground connection with the end of resistance 1R9; Reception antenna [10] is connected with the mid point of the input 1T1 of rf receiver unit [1] by the insertion of casing top.Retaining clip [12] is " U " shape, two ends are connected with support [15] in emission casing [13] and reception casing [18] respectively, in the retaining clip [12] is hollow, be connected to power line, earphone connecting line, decoder and ring-back generator connecting line, transmitter section and receiver section are coupled together, constitute an integral body.

Main feature of the present utility model is to have paid attention to low-cost and highly reliable requirement choosing of circuit design and components and parts.Structurally paid attention to installing requirement firm, easy to operate and elegant in appearance.Particularly antenna intercommunication mode applies to phonetic teaching dexterously, utilizes the BCD decoding technique simultaneously, can answer the variety of issue that teaching machine proposes at any time, realizes intercommunication, obviously improves the oracy of foreign language.

Fig. 1, Fig. 2, Fig. 3 also are the utility model embodiment.Each components and parts is general part, and emission casing and reception casing are the compression moulding part, receive/antenna is a special purpose parts.

Claims

1, a kind of wear-type wireless speech intercommunication learning machine, mainly by rf receiver unit [1], audio amplification unit [2], earphone [3], decoder [4], electronic switch [5], rf transmitter unit [6], ring-back generator [7], voice adder [8], microphone [9], reception antenna [10], transmitting antenna [11], retaining clip [12], emission casing [13], earphone sheath [14], support [15], volume controller [16], battery case [17] and reception casing [18] constitute, it is characterized in that: the 1V2 output of audio amplification unit [2] has two lines, it leads up to electric capacity 1C23, potentiometer 1W1 and 1R9 are connected to 2 pin of 1N2,5 pin of 1N2 are connected to the jack of earphone [3] again through electric capacity 1C25, another road is connected to 2 pin in the decoder [4] by capacitor C 5 and resistance R 11.

2, according to the described intercommunication learning machine of claim 1, it is characterized in that: retaining clip [12] is " U " type, two ends are connected with support [15] in emission casing [13] and reception casing [18] respectively, in the retaining clip [12] is hollow, be connected to power line, earphone connecting line, decoder and ring-back generator connecting line, radiating portion and receiving unit are coupled together, constitute an integral body.

3, according to claim 1 and 2 described intercommunication learning machines, it is characterized in that: two antennas are arranged, and transmitting antenna [11] is connected with the output of rf transmitter unit [6] by the insertion of emission casing [13] top; Reception antenna [10] by receive casing [18] top insert with the input 1T1 of rf receiver unit [1] mutually in succession.