Patent · US Expired

Method and apparatus for monitoring an alternating signal

US5856751A · kind A · utility

4Cited by

9References

8Claims

0Family size

Assignee

Deutsche Thomson-Brandt GmbH · DE

Inventors

Gunter Gleim · Villingen-Schwenningen, DE
Hermann Link · Donaueschingen, DE
Friedrich Heizmann · Meckenbeuren, DE

Key dates

Filing date	Sep 20, 1993
Grant date	Jan 5, 1999
Priority date	—
Expiry date	Sep 20, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH02H7/0844
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An arrangement for monitoring an alternating signal with respect to its state as mark-to-space ratio or direct-current component, in which the alternating signal is modified so that its mark-to-space ratio or direct-current component can be detected by simple comparison with reference signals. Various information is then transmitted over a line, and the operation of the stage that generates the alternating signal can also be monitored.

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