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Emphasizing infrequent events in a digital oscilloscope having variable intensity rasterizer and variable intensity or color display
Emphasizing infrequent events in a digital oscilloscope having variable intensity rasterizer and variable intensity or color display
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机译:在具有可变强度光栅化器和可变强度或彩色显示的数字示波器中强调偶发事件
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摘要
A new oscilloscope design improves the processing of acquired voltage-versus-time data through the efficient high speed acquisition and rasterization of such data into a form that includes multiple-bits-per-pixel intensity information. The multi-bit-per-pixel variable intensity rasterizer is optimized for maximum throughput and most efficient use of memory bandwidth. In the presence of faltering trigger rates, rasterization interruption provides a high probability of capturing the data associated with the slow triggers. Circuitry is provided to compensate for acquisition time and amplitude non-linearities. Many-bits-per-pixel intensity information is mapped into a fewer-bits-per-pixel format by a controllable transfer function that provides multiple viewing capabilities for the operator. Another mode of operation emphasizes infrequent events over commonly occurring ones using variations in brightness or color.
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