Patent · US Active

Signal-processing electronics

US7574190B2 · kind B2 · utility

2Cited by

3References

14Claims

0Family size

Assignee

PMD TECHNOLOGIES AG · DE

Inventors

Zhanping Xu · Sunnyvale, US
Holger Kraft · Siegen, DE
Tobias Moller · Traben-Trarbach, DE
Jochen Frey · Wetzlar, DE

Key dates

Filing date	Apr 4, 2005
Grant date	Aug 11, 2009
Priority date	—
Expiry date	May 25, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH03D9/0608
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to a method and an electronic circuit for processing at least two at least partially correlated output signal streams of a mixer, the mixer having at least two signal inputs and at least two electric signal outputs. In order to provide a method and a device or an electronic circuit which enables the correlated signal portions of the output signals of a mixer to be separated from the uncorrelated signal portions undelayed, it is proposed according to the invention that the difference of the output signal streams of the mixer is formed pairwise directly and during the readout of the signal streams and that the circuit has an apparatus for the instantaneous formation of the difference between the signal streams of two mixer outputs in each case.

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