CN2571075Y - Mobile wireless phonetic teaching equipment - Google Patents
Mobile wireless phonetic teaching equipment Download PDFInfo
- Publication number
- CN2571075Y CN2571075Y CN 02224214 CN02224214U CN2571075Y CN 2571075 Y CN2571075 Y CN 2571075Y CN 02224214 CN02224214 CN 02224214 CN 02224214 U CN02224214 U CN 02224214U CN 2571075 Y CN2571075 Y CN 2571075Y
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- extension set
- teacher
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Abstract
The utility model relates to a mobile wireless phonetic teaching device, which comprises a host machine, a teacher's extension machine and students' extension machines, wherein, the host machine comprises a receiving circuit, a transmitting circuit, an internal sound source circuit, an interface for an internal sound source, an interface for an external sound source and a DC voltage-stabilized power supply circuit; the teacher's extension machine comprises a receiving circuit, a transmitting circuit, an audio-frequency power amplifying circuit, an earphone and a microphone, and each of the students' extension machines comprises a receiving circuit, an audio-frequency power amplifying circuit and an earphone. The utility model has the advantages of less investment and extremely low cost for management and maintenance, and the mobile wireless phonetic teaching device can be used for starting teaching activities in any suitable place.
Description
Technical field
The utility model relates to a kind of mobile wireless phonetic teaching equipment, belongs to the radio voice and transmits and receiving system.
Background technology
Foreign language education more and more is subjected to social attention as an important component part of quality-oriented education, and China offer the foreign language listening class, and college entrance examination foreign language listening achievement counts total points from primary school three grades.At present, the mode of foreign language teaching has two kinds: the one, say by teacher that mainly the student listens, and its form tradition is stiff, and weak effect; The 2nd, teaching condition is school preferably, built a fixed speech room that involves great expense, this speech room is to need private classroom and personal management, the student will go up the foreign language listening class, must go to fixing speech room, use very inconvenient, and concerning the bigger a little school of scale, a fixed speech room is not enough, and maintenance cost is also very big.
Technology contents
The utility model aims to provide a kind of wireless speech tutoring system, it does not need private classroom, foreign language teacher goes up class hour, be with this complete equipment to go to the classroom, plug in then and can use, the student only need turn on wear-type wireless headset or the broadcast receiver of oneself, can receive the signal that main frame sends, and begins on class.
Its concrete technology contents: comprise main frame, teacher's extension set and student's extension set.Main frame comprises receiving circuit 1, radiating circuit 2, inner sounding circuit 3, inner source of sound interface 4, external sound source interface 5 and DC-stabilized circuit 6; Teacher's extension set comprises receiving circuit 1, radiating circuit 2, audio power amplifier circuit 7, earphone 8 and microphone 9; Student's extension set comprises receiving circuit 1, audio power amplifier circuit 7 and earphone 8.
The receiving circuit 1 of main frame and the audio signal of inner sounding circuit 3 input to main frame radiating circuit 2 by the audio signal of inner source of sound interface 4, external sound source respectively by external sound source interface 5, are launched with radio signal by the antenna of this main frame radiating circuit 2; The 220V alternating current exports other each operating circuit to after described DC-stabilized circuit 6 step-downs, rectification and voltage stabilizing.
The audio signal of the microphone 9 of teacher's extension set inputs to teacher's extension set radiating circuit 2 and is modulated into radio signal launches by antenna; After amplifying, the audio power amplifier circuit 7 of the audio signal that the receiving circuit 1 of the radio signal that described master's 9 machines send by teacher's extension set restores by teacher's extension set input to the earphone 8 of teacher's extension set.
The inside sounding circuit 3 of main frame is made of automatic turning player or common videocorder 10, and the output audio signal end of this automatic turning player or common videocorder 10 links to each other with radiating circuit 2 modulation inputs by inner source of sound interface 4.
The audio signal that the receiving circuit 1 of the radio signal that student's extension set sends main frame by student's extension set restores, and the audio power amplifier circuit 7 by student's extension set inputs to earphone 8 after amplifying.
The radiating circuit 2 of main frame, teacher's extension set is made of integrated circuit BA1404 and peripheral circuit thereof, and the receiving circuit 1 of described main frame, teacher's extension set and student's extension set is made of integrated circuit CXA1691BM or KA22426 and peripheral circuit thereof.
Main frame, teacher's extension set respectively comprise two antennas, and promptly their receiving circuit 1 links to each other with separately reception antenna, and radiating circuit 2 links to each other with separately transmitting antenna.
The receiving circuit 1 of described main frame, teacher's extension set and student's extension set has all inserted bandwidth-limited circuit at High Amplifier Circuit input, output respectively, and the High Amplifier Circuit output has also inserted a band stop filter simultaneously.
Its advantage has: small investment, it is extremely low to administer and maintain expense.What it adopted is integrated circuit ripe, stable and reliable for performance.Can carry out education activities in any suitable place.
Description of drawings
Fig. 1 is the main frame theory diagram;
Fig. 2 is teacher's extension set theory diagram;
Fig. 3 is the host circuit schematic diagram;
Fig. 4 is teacher's extension circuit schematic.
Embodiment
As Fig. 1-4, comprise main frame, teacher's extension set and student's extension set.Main frame comprises receiving circuit 1, radiating circuit 2, inner sounding circuit 3, inner source of sound interface 4, external sound source interface 5 and DC-stabilized circuit 6; Teacher's extension set comprises receiving circuit 1, radiating circuit 2, audio power amplifier circuit 7, earphone 8 and microphone 9; Student's extension set comprises receiving circuit 1, audio power amplifier circuit 7 and earphone 8.
The receiving circuit 1 of main frame and the audio signal of inner sounding circuit 3 input to main frame radiating circuit 2 by the audio signal of inner source of sound interface 4, external sound source respectively by external sound source interface 5, are launched with radio signal by the antenna of this main frame radiating circuit 2; The 220V alternating current exports other each operating circuit to after described DC-stabilized circuit 6 step-downs, rectification and voltage stabilizing.
The audio signal of the microphone 9 of teacher's extension set inputs to teacher's extension set radiating circuit 2 and is modulated into radio signal launches by antenna; After amplifying, the audio power amplifier circuit 7 of the audio signal that the receiving circuit 1 of the radio signal that described main frame sends by teacher's extension set restores by teacher's extension set input to the earphone 8 of teacher's extension set.
The inside sounding circuit 3 of main frame is made of automatic turning player or common videocorder 10, and the output audio signal end of this automatic turning player or common videocorder 10 links to each other with radiating circuit 2 modulation inputs by inner source of sound interface 4.
The audio signal that the receiving circuit 1 of the radio signal that student's extension set sends main frame by student's extension set restores, and the audio power amplifier circuit 7 by student's extension set inputs to earphone 8 after amplifying.
The radiating circuit 2 of main frame, teacher's extension set is made of integrated circuit BA1404 and peripheral circuit thereof, and the receiving circuit 1 of described main frame, teacher's extension set and student's extension set is made of integrated circuit CXA1691BM or KA22426 and peripheral circuit thereof.
Main frame, teacher's extension set respectively comprise two antennas, and promptly their receiving circuit 1 links to each other with separately reception antenna, and radiating circuit 2 links to each other with separately transmitting antenna.
The receiving circuit 1 of described main frame, teacher's extension set and student's extension set has all inserted bandwidth-limited circuit at High Amplifier Circuit input, output respectively, and the High Amplifier Circuit output has also inserted a band stop filter simultaneously.
Its operation principle is as follows:
A. host work principle: after the main frame energising, three tunnel different sound source signals can be launched by radiating circuit and antenna.Receiver by teacher's extension set and student receives the very high frequency(VHF) signal that this main frame sends then, and three tunnel different sound source signals are respectively: (1) receives the very high frequency(VHF) signal that teacher's extension set sends and is reduced into audio signal by antenna and receiving circuit; (2) automatic turning player is reduced into audio signal with the magnetic recording level signal on the cassette tape; (3) three, external sound source signal Source Music; CD; The line output signal of VCD machine.
B. teacher's extension set operation principle: after teacher opened Exgt Bat extension battery, extension set got final product operate as normal.Teacher says that the voice signal of class hour sends into radiating circuit by the microphone on the headphone, goes out by radiating circuit and antenna transmission; By antenna and receiving circuit the signal that main frame sends is received and be reduced into audio signal, send into earphone then and be used for monitoring.
The integrated circuit BA1404 that master/extension set radiating circuit is used; Integrated circuit CXA1691BM or KA22426 that receiving circuit is used
Reception of this equipment and radiating portion separately use antenna, i.e. double antenna.
The receiving circuit part of main frame, teacher's extension set and student's extension set has all inserted bandwidth-limited circuit at the High Amplifier Circuit input/output terminal respectively, and the High Amplifier Circuit output has also inserted a band stop filter simultaneously.
Operation of equipment:
Main frame is provided with the audio tape playing function, and teacher's extension set (TEACHER) signal receiving function and other sound source signal (EXIT MOD) insert function.
1, at first teacher inserts the host power supply plug in the 220V volt AC Power supply socket hole, and this moment, indicator light should be luminous.When only needing to play the foreign language tape, teacher needs the MIC toggle switch is placed on the OFF position, then audio tape is correctly inserted in the playback cabin, presses the PLAY key, regulates volume knob simultaneously and makes that the playback volume is moderate to get final product.
2, teacher will say class hour, needs the MIC toggle switch is allocated to the position of ON, regulates the MICVOLUME volume knob simultaneously and makes extension set receive teacher's minimum the getting final product of speech distortion.
3, teacher needs other sound source signals are played to the student when listening, and only needs other sound source signal inserted from EXIT MOD jack by signal connecting line get final product.Simultaneously the MIC toggle switch is placed on the OFF position.
Teacher's extension set: at first two joint No.5 cells are correctly packed into by indicated direction in the battery case, then the stereophone plug is inserted in the PHONE hole, red plug inserts in the MIC hole, two antennas all should be pulled out simultaneously, again the VOL dial is turned clockwise and hear clickly sound, indicator light Ying Liang at this moment.Then volume is transferred to moderately, use extension set transmitting-receiving effect to reach best, this moment, teacher can teach by extension set.When reception very poor (this moment, indicator light was very dark), illustrate that battery can not use, please more renew battery; If for a long time time spent not, please battery is taken out.
Claims (8)
1, a kind of mobile wireless phonetic teaching equipment is characterized in that comprising main frame, teacher's extension set and student's extension set:
A: described main frame comprises receiving circuit (1), radiating circuit (2), inner sounding circuit (3), inner source of sound interface (4), external sound source interface (5) and DC-stabilized circuit (6);
B: described teacher's extension set comprises receiving circuit (1), radiating circuit (2), audio power amplifier circuit (7), earphone (8) and the tube (9) of living;
C: described student's extension set comprises receiving circuit (1), audio power amplifier circuit (7) and earphone (8).
2, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, the audio signal that it is characterized in that the receiving circuit (1) of described main frame and inner sounding circuit (3) inputs to main frame radiating circuit (2) by the audio signal of inner source of sound interface (4), external sound source respectively by external sound source interface (5), is launched with radio signal by the antenna of this main frame radiating circuit (2); The 220V alternating current exports other each operating circuit to after described DC-stabilized circuit (6) step-down, rectification and voltage stabilizing.
3, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, its feature input to teacher's extension set radiating circuit (2) and are modulated into radio signal in the audio signal of the microphone (9) of the described teacher's extension set of son to be launched by antenna; After amplifying, the audio power amplifier circuit (7) of the audio signal that the receiving circuit (1) of the radio signal that described main frame sends by teacher's extension set restores by teacher's extension set input to the earphone (8) of teacher's extension set.
4, as a kind of mobile wireless phonetic teaching equipment of claim 1 or 2, the inside sounding circuit (3) that it is characterized in that described main frame is made of automatic turning player or common videocorder (10), and the output audio signal end of this automatic turning player or common videocorder (10) links to each other with radiating circuit (2) modulation input by inner source of sound interface (4).
5, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, it is characterized in that the audio signal that radio signal that described student's extension set the sends main frame receiving circuit (1) by student's extension set restores, and the audio power amplifier circuit (7) by student's extension set inputs to earphone (8) after amplifying.
6, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, the radiating circuit (2) that it is characterized in that described main frame, teacher's extension set is made of integrated circuit BA1404 and peripheral circuit thereof, and the receiving circuit (1) of described main frame, teacher's extension set and student's extension set is made of integrated circuit CXA1691BM or KA22426 and peripheral circuit thereof.
7, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, it is characterized in that described main frame, teacher's extension set respectively comprise two antennas, being their receiving circuit (1) links to each other with separately reception antenna, and radiating circuit (2) links to each other with separately transmitting antenna.
8, a kind of mobile wireless phonetic teaching equipment as claimed in claim 1, the receiving circuit (1) that it is characterized in that described main frame, teacher's extension set and student's extension set has all inserted bandwidth-limited circuit at High Amplifier Circuit input, output respectively, and the High Amplifier Circuit output has also inserted a band stop filter simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224214 CN2571075Y (en) | 2002-06-06 | 2002-06-06 | Mobile wireless phonetic teaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224214 CN2571075Y (en) | 2002-06-06 | 2002-06-06 | Mobile wireless phonetic teaching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571075Y true CN2571075Y (en) | 2003-09-03 |
Family
ID=33701693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224214 Expired - Fee Related CN2571075Y (en) | 2002-06-06 | 2002-06-06 | Mobile wireless phonetic teaching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571075Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393002C (en) * | 2004-12-31 | 2008-06-04 | 江苏大学 | Wireless magnetic conductive connecting method and device between student units and system in speech teaching device |
| CN102663909A (en) * | 2012-04-09 | 2012-09-12 | 大连联达科技有限公司 | Wireless phonetic teaching system |
| CN101729156B (en) * | 2008-10-22 | 2013-01-02 | 索尼株式会社 | Data communication apparatus and communication data control method |
-
2002
- 2002-06-06 CN CN 02224214 patent/CN2571075Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393002C (en) * | 2004-12-31 | 2008-06-04 | 江苏大学 | Wireless magnetic conductive connecting method and device between student units and system in speech teaching device |
| CN101729156B (en) * | 2008-10-22 | 2013-01-02 | 索尼株式会社 | Data communication apparatus and communication data control method |
| CN102663909A (en) * | 2012-04-09 | 2012-09-12 | 大连联达科技有限公司 | Wireless phonetic teaching system |
| CN102663909B (en) * | 2012-04-09 | 2014-03-05 | 大连联达科技有限公司 | Wireless phonetic teaching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |