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1. 发明授权

US5191461A Infrared network transceiver apparatus 失效
标题翻译：红外网络收发器
公开(公告)号：US5191461A
公开(公告)日：1993-03-02
申请号：US702448
申请日：1991-05-16
申请人： Charles L. Cranshaw , John Piccone , Richard C. Allen , James E. Sacherman , John W. Toor
发明人： Charles L. Cranshaw , John Piccone , Richard C. Allen , James E. Sacherman , John W. Toor
IPC分类号： H04B10/04
CPC分类号： H04B10/50
摘要： The present invention is for an illumination transmitter. The transmitter projects a signal onto a planar reflective surface such as the ceiling of an open office environment. The transmitter includes a plurality of illumination sources positioned in a line wherein the line has a predetermined orientation to the planar surface. The illumination sources are preferably infrared LEDs. The transmitter has means for jointly aiming the illumination sources toward a desired location on the planar surface. The location on the planar surface is usually used to allow multiple transmitters coupled to infrared receivers to allow communication between computers in a LAN. The transmitter also includes means for maintaining the predetermined orientation between the planar surface and the line. The orientation is usually parallel to allow transmitters located large distances from the illumination to project a relatively small illumination spot onto the planar surface.
摘要翻译：本发明是用于照明发射机。发射机将信号投影到平面反射表面，例如开放式办公环境的天花板上。发射器包括定位在线中的多个照明源，其中线具有对于平面表面的预定取向。照明源优选地是红外LED。发射机具有用于将照明源联合瞄准平面上的期望位置的装置。平面上的位置通常用于允许耦合到红外接收器的多个发射器允许LAN中的计算机之间的通信。发射机还包括用于维持平面和线之间的预定取向的装置。取向通常是平行的，以允许距离照明器大的距离的发射器将相对较小的照明点投射到平面上。

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