Patent · US Active

Signal acquisition system having reduced probe loading of a device under test

US8564308B2 · kind B2 · utility

2Cited by

19References

12Claims

0Family size

Assignee

Tektronix, Inc. · US

Inventors

Josiah A. Bartlett · Forest Grove, US
Ira G. Pollock · Beaverton, US
Daniel G. Knierim · Beaverton, US
Lester L. Larson · Portland, US
Scott Jansen · Boulder, US
Kenneth P. Dobyns · Beaverton, US
Michael Duane Stevens · Hillsboro, US

Key dates

Filing date	Jul 29, 2010
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Aug 4, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01R1/06772
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A signal acquisition system has a signal acquisition probe having probe tip circuitry coupled to a resistive center conductor signal cable. The resistive center conductor signal cable of the signal acquisition probe is coupled to a compensation system in a signal processing instrument via an input node and input circuitry in the signal processing instrument. The signal acquisition probe and the signal processing instrument have mismatched time constants at the input node with the compensation system having an input amplifier with feedback loop circuitry and a shunt pole-zero pair coupled to the input circuitry providing pole-zero pairs for maintaining flatness over the signal acquisition system frequency bandwidth.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.