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:
Jul. 05, 2016
Filed:
Oct. 21, 2011
Christian Hulm, Waldkirch, DE;
Jörg Sigmund, Freiburg, DE;
Gerold Feise, Hamburg, DE;
SICK AG, Waldkirch, DE;
Abstract
A laser scanner () detects and determines distances of objects comprises a light transmitter transmitting light in a plurality of consecutive individual pulses. A rotatable deflection unit () for the periodical deflection of the transmission light beam () into the monitoring zone () and an angular measurement unit () generates angular position signals () in dependence on an angular position of the deflection unit (). An evaluation unit () identifies a received pulse associated with an object from a histogram () taken from a histogram memory () to determine the distance of the object by means of a light propagation method. The histogram () is collected over a time interval which is associated with the angular position signal (). In this connection at least two histogram memories () are provided in order to collect a first histogram and a second histogram in overlapping time intervals.