Patent ID: 6297796
Filing Date: 2001-10-02
Classification: G01R,G06K

Abstract:
An oscilloscope, comprising:an input for receiving an analog signal to be measured;a data acquisition unit for acquiring samples of said analog signal;a controller coupled to said data acquisition device for receiving digital data therefrom;a display device, coupled to said controller, for displaying a waveform against a dark background, said waveform exhibiting an apparent intensity; andan output port for coupling data signals to a printer, said data signals being representative of said screen display;wherein, said controller inverts data signals representative of black and white portions of said screen display and modifies values of data signals representative of color portions of said screen display and provides said inverted black and white data signals and modified color data signals to said printer, and said printer produces a display of color waveforms against a light background in response thereto;said color waveform retaining the same apparent intensity and hue as said waveform displayed on said display device.