The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2018
Filed:
Oct. 29, 2014
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Michael Hallek, Bietigheim-Bissingen, DE;
VALEO Schalter und Sensoren GmbH, Bietigheim-Bissingen, DE;
Abstract
The invention relates to a method for determining the signal-to-noise ratio () of a target echo () from a received signal (UE) received from an ultrasonic sensor () of a motor vehicle (), in which: a transmission signal is transmitted in encoded form, the received signal (UE) is decoded and decoding involves the received signal (UE) being correlated with a reference signal and the correlation provides a correlation signal (UK), and the target echo () is detected in the correlation signal (UK), wherein the signal-to-noise ratio () is determined by determining a value () of the noise in the received signal (UE) on the basis of the correlation signal (UK) and, in so doing, dividing the correlation signal (UK) into a multiplicity of signal segments (to) and determining the value () of the noise solely on the basis of signal values for that one of the signal segments (to) that contains the target echo ().