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Wireless magnetic conductive connecting method and device between student units and system in speech teaching device

A student, wireless technology, applied in the communication between multiple stations, electrical operation teaching aids, instruments, etc., can solve the problems of increasing difficulty in voice room management, equipment management, and high operating costs, and ensure normal teaching order. , The effect of improving the utilization rate of classrooms and eliminating man-made damage

Inactive Publication Date: 2008-06-04
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] At present, the student unit and the system used in the voice teaching process are in the form of mechanical contact, and the earphones and microphones in the student unit are connected to the system with sockets and wired connections. The biggest disadvantage of this method is the failure rate and damage of the middle school student unit. The rate is extremely high, which directly affects the safe operation of voice teaching equipment, thus affecting the normal progress of teaching order, and the management of equipment is difficult and the operating cost is high
The utility model patent with the patent number "02221406.2" uses special earphones for students in the wireless voice teaching equipment. Difficulty, which makes the management of the language room more difficult and increases the labor cost of the operation of the language room. The utility model patent with the patent number "02224214.7" mentioned that the adjustment of the student earphones in the wireless voice teaching equipment is difficult and inconvenient to operate.

Method used

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  • Wireless magnetic conductive connecting method and device between student units and system in speech teaching device

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Embodiment Construction

[0008] As shown in the figure, set a transmitting coil with a height of 11cm, the same length as the desk, and a thickness of 1.6cm on each desk. By adjusting the diameter and number of turns of the coil, the DC resistance of each coil is guaranteed to be 6Ω. The voice signal is sent to the student unit through the communication device, the main voice signal is taken out from the student unit, sent to the magnetic control amplifier, powered by DC voltage, OTL power is amplified, sent to the transmitting coil, and the magnetic field intensity is controlled in this classroom Inside, it is received by students' CET earphones through magnetic conduction, and students interact through the MIC hidden on the desk to realize the functions of students listening to music, teachers giving lectures, and students demonstrating in the whole class.

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Abstract

The voice signal transmitted by main control device is sent to student unit through communicational equipment, and then is taken out teacher speech or current displaying signal from student unit to send it to magnetic control amplifier adopting DC power supply and OTL amplifying. Then the signal is sent to emitter coil to get cellular acoustic magnetic field. The CET earphone of student receives the acoustic magnetic field and switches the acoustic magnetic signal into voice signal.

Description

technical field [0001] The invention relates to a phonetic teaching device, in particular to a complete wireless magnetic conduction method and device between a student unit and a system in the phonetic teaching device. Background technique [0002] At present, the student unit and the system used in the voice teaching process are in the form of mechanical contact, and the earphones and microphones in the student unit are connected to the system with sockets and wired connections. The biggest disadvantage of this method is the failure rate and damage of the middle school student unit. The rate is extremely high, which directly affects the safe operation of the voice teaching equipment, thereby affecting the normal progress of the teaching order, and the management of the equipment is difficult and the operating cost is high. The utility model patent with the patent number "02221406.2" uses special earphones for students in the wireless voice teaching equipment. Difficulties...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/24G09B5/08
Inventor 胡斌
Owner JIANGSU UNIV
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