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:
Feb. 26, 2013
Filed:
Nov. 12, 2009
Reinhard Heizmann, Glottertal, DE;
Gottfried Hug, Waldkirch, DE;
Martin Marra, Freiburg, DE;
Bahram Torabi, Freiburg, DE;
Reinhard Heizmann, Glottertal, DE;
Gottfried Hug, Waldkirch, DE;
Martin Marra, Freiburg, DE;
Bahram Torabi, Freiburg, DE;
Sick AG, Waldkirch, DE;
Abstract
An optoelectronic sensor () for the measurement of distances or distance changes in accordance with the light transit time principle is provided having a light transmitter () for the transmission of a light signal and having a light receiver () for the reception of the remitted or reflected light signal, wherein an evaluation unit () is provided which is made to trigger the transmission of a light signal at a transmission time in a respective measurement period () and to sample the received light signal as well as to accumulate a histogram () of such received light signals over a plurality of measurement periods () and to determine the reception time from the histogram () and the light transient time from this. In this respect, a unit () for the fine setting of a transmission time is provided which is made to shift the respective transmission time within the measurement periods () by an offset, with the offsets forming a distribution () whose center of mass forms a desired transmission time.