Patent · US Expired

Method and circuit arrangement for level monitoring

US5323331A · kind A · utility

4Cited by

6References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Heinrich Schenk · Munich, DE
Dirk Schnabel · Munich, DE

Key dates

Filing date	Nov 4, 1993
Grant date	Jun 21, 1994
Priority date	—
Expiry date	Nov 4, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/061
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a method and circuit arrangement for level monitoring, a received or, respectively, absent data signal should be reliably recognized by the level monitoring equipment even given great fluctuations (.gtoreq.40 dB). To this end, a reference value is first calculated and stored. The reference value is then compared to samples of the received signal. The comparison result is summed and it is used to effect the output of a control signal.

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