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1. 发明申请

WO1995015057A1 METHOD AND APPARATUS FOR DOWNLOADING INFORMATION 审中-公开
标题翻译：下载信息的方法和装置
公开(公告)号：WO1995015057A1
公开(公告)日：1995-06-01
申请号：PCT/US1994010931
申请日：1994-09-27
申请人： TIMEX CORPORATION , JACOBS, Michael, A. , INSERO, Mark, A.
发明人： TIMEX CORPORATION
IPC分类号： H04N07/00
CPC分类号： H04N7/00 , G04G21/00 , G04R20/00 , G06F3/002 , G06F15/0225
摘要： A system for transferring data from a CRT video display monitor on a personal computer to a portable information device such as a multifunction electronic wristwatch. The CRT video display has a video signal generator providing raster scanning of the screen and a program for formatting the binary coded data into blocks of serial data bits, with start bit and stop bit. The blocks of data are supplied to the video signal generator in synchronism with raster scanning of the screen so as to provide an integral number of one or more blocks of data for each vertical frame, and modulated to vary the brightness of the screen and provide light pulses corresponding to presence or absence of binary coded transmitter pulses. The portable information device is manipulated within line of sight of the CRT screen and has a photosensor to detect light pulses when the photosensor is directed toward the screen. Signals from the photosensor are amplified and filtered to remove ambient light source flicker and extraneous spurious light signals and to convert the receiver pulses to binary coded data blocks varying between high and low logic levels at a preselected pulse repetition rate. The portable information device stores the received data for further use.
摘要翻译：一种用于将数据从个人计算机上的CRT视频显示监视器传送到便携式信息装置如多功能电子手表的系统。 CRT视频显示器具有提供屏幕的光栅扫描的视频信号发生器和用于将二进制编码数据格式化为具有起始位和停止位的串行数据位块的程序。数据块与屏幕的光栅扫描同步地提供给视频信号发生器，以便为每个垂直帧提供整数个一个或多个数据块，并被调制以改变屏幕的亮度并提供光对应于存在或不存在二进制编码的发射机脉冲的脉冲。便携式信息设备在CRT屏幕的视线内被操纵，并且具有光电传感器以在光电传感器被指向屏幕时检测光脉冲。来自光电传感器的信号被放大和滤波以去除环境光源闪烁和外来寄生光信号，并将接收器脉冲转换成以预选脉冲重复率在高和低逻辑电平之间变化的二进制编码数据块。便携式信息装置存储接收的数据以供进一步使用。

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