Patent · US Active

Electronic circuit and method for recovering desired signals from carrier signals by demodulation as well as a modem

US9031121B2 · kind B2 · utility

0Cited by

11References

9Claims

0Family size

Assignee

Endress+Hauser Conducta Gesellschaft fuer Mess- und Regeltechnik mbH + Co. KG · DE

Inventors

Björn Haase · Stuttgart, DE
Stefan Pilz · Geithain, DE

Key dates

Filing date	Dec 12, 2012
Grant date	May 12, 2015
Priority date	—
Expiry date	Feb 25, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04B15/00
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An electronic circuit comprising a rectifier which passes only one polarity of a carrier signal; at least one filter, subsequent to the rectifier, for the suppression of at least one frequency range of the carrier signal; a voltage matching network, subsequent to the filter, which is embodied so that it matches the voltage of the desired signal, and leads to one of the two inputs of a comparator, wherein an output of the comparator is switched, depending on the difference between the two inputs, and a feedback network connected in parallel with the comparator, wherein the feedback network connects one of the two inputs of the comparator with the output of the comparator, the feedback network comprises a high-pass characteristic. The invention furthermore comprises a method for the recovering of desired signals from a carrier signal by demodulation and a modem.

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