Patent · US Active

Demodulator for frequency-shift keyed signals by using the Goertzel algorithm

US9276789B2 · kind B2 · utility

1Cited by

3References

4Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Stefan Pook · Minden, DE
Olaf Schmidt · Heidelberg, DE
Thomas Keul · Neuses, DE

Key dates

Filing date	Jan 10, 2014
Grant date	Mar 1, 2016
Priority date	—
Expiry date	Jan 10, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/148
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Exemplary embodiments relates to a demodulator for frequency-shift keyed signals by using the Goertzel algorithm according to the general recursive calculating rule, wherewith the sampling frequency fs and the specified frequency fg. To reduce the mathematical complexity in feed-power-limited devices, it is proposed that the sampling frequency fs is an integral multiple of the frequency fg of a specified discrete spectral component.

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