Automated storage of unique waveforms presented as an oscilloscope image

Abstract

A system for determining which waveforms (2) should be preserved in memory (22) for eventual display by an oscilloscope. An input signal (1) is processed by a rasterizer (14). A pixel counter (15) monitors the frequency of usage of each pixel available for display in the rasterized image, and a unique waveform threshold calculator (24) compares pixel utilization during an image acquisition period. The calculator (24) identifies those waveforms (2) that deviate significantly from the normal input signal waveform (1) and sends them to a scoring processor (21) which assigns each unique waveform (2) a value indicative of the magnitude of its deviation from previous waveforms. The scoring processor (21) also compares the scores of each unique waveform (2) and assigns a ranking to each waveform. The lowest ranking waveform is overwritten in its segment of memory (22) as waveforms with higher rankings are processed.

Dependencies are inferred from the claim text.