Patent · US Active

Digital filter circuit, measurement instrument, and signal processing

US12176875B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Rohde & Schwarz GmbH & Co. KG · DE

Inventors

Manuel Stein · Stuttgart, DE
Bernhard Nitsch · Birkenfeld, DE

Key dates

Filing date	Jul 8, 2021
Grant date	Dec 24, 2024
Priority date	—
Expiry date	Sep 5, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2220/08
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A digital filter circuit for filtering at least two input signals having different signal data rates is described. The digital filter circuit includes an input multiplexer sub-circuit, a digital filter, and an output multiplexer sub-circuit. The digital filter is connected to the input multiplexer sub-circuit downstream of the input multiplexer sub-circuit. The digital filter is connected to the output multiplexer sub-circuit upstream of the output multiplexer sub-circuit. The input multiplexer sub-circuit is configured to receive the at least two input signals having different signal data rates. The input multiplexer sub-circuit is configured to selectively forward the at least two input signals to the digital filter. The digital filter is configured to filter the at least two input signals, thereby obtaining at least two filtered input signals. The output multiplexer sub-circuit is configured to selectively output the at least two filtered input signals. Further, a measurement instrument and a signal processing method are described.

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