Signal acquisition system having a compensation digital filter
US8791706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
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 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 compensation digital filter 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.