INFRARED CLASSROOM AMPLIFICATION SYSTEM

这项工作的目的是开发一个教室扩声系统 基于红外技术。对这种扩增系统的需求 是因为普通教室里的学生太多了 由于中耳炎导致的一过性听力损失，甚至更大 由于同样的问题，特殊需要教室的人数也受到了影响。 最近的研究表明，平均来说，25%到30% 的小学生会有这样的听力障碍 假以时日，即使它们都不会被归类为损害 听证。此外，对于有特殊需要的班级，数字可以为 高达75%。国家健康中心收集的数据 统计数据显示，这个问题至少增加了45% 在1981至1988年间，15岁及以下儿童的失业率为224% 在同一时期，2岁及以下的儿童。很明显， 由于无线电传输固有的干扰问题， 目前使用便携式调频发射机作为技术的方法 因为将教师连接到扩音器系统是不够的。 事实上，使用这种技术，在任何一个教室里，不超过5到6个教室 建筑物可以这样安装。据认为，红外传输 是这项重要任务的首选技术，还是新的 小型可充电电池和更灵敏电池的发展 红外探测器使便携式红外得以实现 传输的可能性是真实的。 建议的商业应用 这是一款非常重要的产品。如果开发成功， 汽车增强公司致力于尽快将其推向市场 有可能。

The purpose of this work is to develop a classroom amplification system based on infrared technology. The need for such amplification systems arises because of the large numbers of students in regular classrooms with transient hearing losses due to otitis media, and the even larger numbers in special needs classrooms effected by the same problem. Recent studies indicate that, on the average, 25 percent to 30 percent of children in primary schools will have such hearing deficits at any given time, even though none of them will be classed as having impaired hearing. Furthermore, for special needs classes, the number can be as high as 75 percent. Data gathered by the National Center for Health Statistics indicate that this problem increased by at least 45 percent between 1981 and 1988 for children 15 and under, and by 224 percent for children age 2 and under during the same period. It is clear that because of interference problems inherent to Radio Transmissions, that the current methods of using portable FM Transmitters as the technology for connecting the teacher to the amplification system will not suffice. In fact, using that technology, no more than 5 or 6 classrooms in any building can be so fitted. It is believed that infrared transmission is the technology of choice for this important task and that new developments in small rechargeable batteries and in more sensitive infrared detectors make the realization of portable infrared transmitters a real posibility. PROPOSED COMMERCIAL APPLICATION This is a very important product. If the development is successful, Auto Enhancement has committed to bringing it market as rapidly as possible.