Incorporation of Three Infra-red Rays Transfer on the Different Wavelength into Learning and Instructional System for Foreign Language Education

这项研究是为了评估一种可能的教学系统的价值，在这种教学系统中，教师可以在免费的多媒体教学和学习布局中对语言学习者进行管理。这种教学系统是通过使用光扩散-传递红外线传输系统和一台笔记本电脑实现的。该系统可以使用三种不同的波长。第一个用于传输具有模拟频谱的NTSC(国家电视标准委员会)信号。这种传输不会导致从教师向学习者分发信息的延迟。其余的用于使用红外线的无线局域网。该局域网系统使用IEEE802.3 10BASE-T中已经采用的CSMA/CD(具有冲突检测的载波侦听多路访问)，因此在检测信号冲突方面优于CSMA/CA(具有冲突避免的CSMA)。然而，在该系统中发现了下一个研究问题。该系统可以同时运行两个功能，通过向学习者呈现视听教材，学习者自己控制教材的回放。这项研究得出的结论是，利用三种不同波长的红外线传输的外语教学可以振兴甚至节约整个教育计划，因为教师和学习者只需将自己的笔记本电脑带入普通教室，而不是进入奢华的LL或计算机室。

This research was undertaken to assess the value of the possible instruction system where an instructor can administer to language learners at a free multimedia instructing and learning layout.This instruction system was made possible with the use of the light diffusion-transfer infra-red ray transmission system and a notebook computer. The system can use three different wavelengths. The first one is used for transferring NTSC (National Television Standards Committee) signal with analog spectrum. This transmission causes no delay distributing information from the instructor to the learners. The rest of them are used for wireless LAN utilizing infra-red ray. This system of the LAN uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) which has been adopted in IEEE802.3 10BASE-T, thus excelling CSMA/CA (CSMA with Collision Avoidance) in detecting a signal collision.There is, however, a next research issue found in the system. The system could operate the two functions simultaneously, by presenting audio-visual teaching materials to learners, and the learners controlling the playback of the materials by themselves. Then, the further research accounting for the effective chemistry between the two is needed.This research has arrived at the conclusion where foreign language education utilizing three infra-red rays transfer on the different wavelength may rejuvenate and even economize the whole education plan, in that instructors and learners only need to bring in their own notebook computers into the ordinary classroom, not into an extravagant LL or a computer room.