Patent ID: 7158137

Claim:
A method for use in a multiple channel digital storage oscilloscope (DSO), comprising: for each of a plurality of input channels, performing the steps of: converting a sample stream of a respective acquired signal under test (SUT) into respective waveform image data; modifying said respective waveform image data by reducing at least one display parameter according to a decay function; and providing said modified waveform image data to an image combiner; wherein: for a non-final channel, said step of providing comprises the step of transmitting said modified waveform image data to an adjacent non-initial input channel via a point-to-point bus; and wherein: for each non-initial input channel, further performing the steps of: receiving modified waveform image data from an adjacent input channel via said point-to-point bus; and combining said received waveform image data with said modified waveform image data prior to transmitting said modified waveform image data to said adjacent input channel via said point-to-point bus.