Patent ID: 6892150

Claim:
An acquisition system for a digital storage oscilloscope comprising: an input terminal for receiving a signal under test; an analog-to-digital converter having an input coupled to said input terminal for receiving said signal under test and for producing digital samples of said signal under test at an output; a trigger circuit having an input coupled to said input terminal for receiving said signal under test to produce a first trigger signal at an output of the trigger circuit in response to detection of a first predetermined trigger event in said signal under test; an acquisition memory having an input for receiving and storing said digital samples of said signal under test in a data record; and processor circuitry having an input coupled to said input of said acquisition memory for receiving and examining said digital samples in a real-time mode of operation and for producing an EVENT DETECT signal in response to detection of a predetermined anomalous event in said digital samples to cause a predetermined amount of said digital samples to be sent to a signal processing portion of said oscilloscope for processing and display, said predetermined amount being related in time to said predetermined anomalous event.