Patent · US Expired

Method and measuring device for measuring the spectra in adjacent channels

US6744247B2 · kind B2 · utility

1Cited by

2References

12Claims

0Family size

Assignee

Rohde & Schwarz GmbH & Co. KG · DE

Inventors

Martin Oetjen · Puchheim, DE
Rolf Lorenzen · Unterhaching, DE
Falko Fiechtner · Memmingen, DE

Key dates

Filing date	Dec 17, 2002
Grant date	Jun 1, 2004
Priority date	—
Expiry date	Dec 17, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG01R23/165
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A measuring device (1), for measuring the spectrum of a measured signal in several neighboring channels (15−9-159) of a working channel (14), includes a selective filter (9) which damps the working channel (14) more strongly than the neighboring channels (15−9-159). Furthermore an analogue/digital converter (5) is provided which detects the filtered measured signal from all the channels to be measured (15−9-159, 14) in a parallel and broadband manner and converts the above to a digital signal. An equaliser (11) in series with the analogue/digital converter (5), equalises the digital signal with a frequency response which is the reciprocal of the frequency response of the selective filter (9).

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