Patent ID: 6222521
Filing Date: 2001-04-24
Classification: G01R

Abstract:
A digital oscilloscope architecture comprising:a display section comprising a display raster memory, a raster combiner, and a raster display; andan acquisition memory and rasterization section comprising:an acquisition memory for storing acquired waveform records as they are acquired and for providing the acquired waveform records to a rasterizer as they are needed;a rasterizer for compressing and/or combining acquired waveform record data to produce pixel data with detailed intensity information;a first acquisition raster memory for storing the pixel data with detailed intensity information;an intensity mapper for taking pixel data with detailed intensity information and producing pixel data with more granular intensity information;a second acquisition raster memory, shorter than said first acquisition raster memory, for storing the pixel data with more granular intensity information; anddata transfer means for taking the more granular intensity information from one or more acquisition memory and rasterizer sections and providing the more granular intensity information to the raster combiner of the display section; and whereinthe display section further comprises a second display raster memory and the two display raster memories alternate as the display raster memory providing data to the raster display and to the raster combiner and as the display raster memory receiving the output of the raster combiner.