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:
Apr. 18, 2006
Filed:
Apr. 23, 2003
Juergen Reichenbach, Emmendingen, DE;
Carl Joseph Hafner, Emmendingen, DE;
Peter Hauser, Freiburg, DE;
Christiane Fillhardt, Schutterwald, DE;
Juergen Reichenbach, Emmendingen, DE;
Carl Joseph Hafner, Emmendingen, DE;
Peter Hauser, Freiburg, DE;
Christiane Fillhardt, Schutterwald, DE;
Sick AG, Waldkirch, DE;
Abstract
A method for operating optical sensors, particularly code readers, which have a light receptor that receives light reflected and/or returned from an object. A picture is generated from the received light and the content of the picture, such as a code, is read. At least some pictures are compressed with a picture compression algorithm of the sensor. To improve the operation of such optical sensors, especially code readers, and to improve the analysis of error detection from knowing the causes for errors, only pictures which have error information are compressed and stored. The code reader is constructed to perform these functions.