Signal controlled waveform recorder

Details Signal controlled waveform recorder Signal controlled waveform recorder

G - Physics

11

B

375/33, 352/89

G11B 23/00 (2006.01) G06F 17/40 (2006.01)

Patent

CA 1244976

ABSTRACT OF THE DISCLOSURE A multi-channel electronic waveform recorder for storing sampled waveform data and time of occurrence, information, i.e. a "time-tag", for each stored sample, is disclosed. Specifically, each channel of the waveform recorder converts a previously stored digital sample of a recorded waveform into an analog value, compares this value to the current value of the input signal, generates an analog difference signal in response to this comparison, and stores a digital sample substantially equivalent to the current value of the input signal whenever the magnitude of the difference signal exceeds a predetermined amount.

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