Patent ID: 6459256
Filing Date: 2002-10-01
Classification: G01R

Abstract:
A digital storage oscilloscope, comprising:an acquisition unit for acquiring samples of a signal under test; at least first and second memory modules for storing said samples; a first data bus for conveying said samples to said first memory module; said first and second memory modules each including: a stream splitter having an input for receiving an input stream of digital data words, a first output for passing said stream of digital data words to a stream splitter of said second memory module via a second data bus, and a second output; a demultiplexer for receiving said stream of digital data words from said second output of said stream splitter, generating a sequence of address words, and developing a representation of said digital data words at an output; an acquisition memory which is addressed utilizing the address words for storing said representation of said digital data words; and a trigger input section for receiving a discrete input trigger and supplying the discrete input trigger to said demultiplexer to prevent overwriting of said stored representation of digital data words; and wherein said first memory module supplies a discrete trigger to the trigger input section of the second memory module when said acquisition memory of said first memory module has reached its data storage capacity.