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公开(公告)号：US4689675A
公开(公告)日：1987-08-25
申请号：US737247
申请日：1985-05-23
CPC分类号： G01S7/52044 , G01S7/298 , G01S7/531
摘要： A digital scan converter with an initialization circuit. The initialization circuit, for example, a dedicated circuit or a computer, relates each pixel in a converted image to two or more respective pixels which lie adjacent to it and which are selected from an original image which is generated by a scanner. The initialization circuit also calculates and makes available interpolation constants to be used in deriving the value of a given pixel in terms of its respective, adjacently lying, group of pixels. When the converted image has a raster scan format, a satisfactory image is obtained when the respective group of pixels consists of two pixels between which lies the pixel whose value is to be calculated. By predefining the relationship between the pixels in the converted and original images before actual conversion begins real time operation is achieved.
摘要翻译： 具有初始化电路的数字扫描转换器。 初始化电路，例如专用电路或计算机将转换后的图像中的每个像素与位于其相邻的两个或更多个相应的像素相关联，并且从由扫描仪生成的原始图像中选择。 初始化电路还计算并使可用的内插常数用于根据其相应的相邻的像素组来导出给定像素的值。 当转换的图像具有光栅扫描格式时，当相应的像素组由两个像素构成时，获得令人满意的图像，其间位于要计算其值的像素。 通过预先确定实际转换开始之前的转换和原始图像中的像素之间的关系，实现实时操作。
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公开(公告)号：US4546776A
公开(公告)日：1985-10-15
申请号：US650108
申请日：1984-09-13
IPC分类号： A61B5/0452 , G06F17/00 , A61B5/04
CPC分类号： A61B5/0452
摘要： A portable cardiac monitor analyzes the PQ and ST portions of an electrocardiogram waveform and establishes a "normal" or standard ST ratio deviation of the difference between the ST and PQ levels. When a subsequently measured ST ratio deviation exceeds the previously stored normal value, an alarm is indicated indicating a possible ischemic condition. The pulse rate may also be monitored to provide an alarm whenever the pulse rate rises above or falls below a predetermined value.
摘要翻译： 便携式心脏监护仪分析心电图波形的PQ和ST部分，并建立ST和PQ水平之间的差异的“正常”或标准ST比偏差。 当随后测量的ST比偏差超过先前存储的正常值时，指示指示可能的缺血状况的警报。 脉冲速率也可以被监视，以便每当脉率上升或低于预定值时提供警报。
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