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:
Mar. 07, 2006
Filed:
Nov. 19, 2004
Ingo Hehemann, Hagen, DE;
Werner Brockherde, Duisburg, DE;
Armin Kemna, Duisburg, DE;
Holger Hofmann, Neustetten, DE;
Hartmut Richter, Villingen-Schwenningen, DE;
Ingo Hehemann, Hagen, DE;
Werner Brockherde, Duisburg, DE;
Armin Kemna, Duisburg, DE;
Holger Hofmann, Neustetten, DE;
Hartmut Richter, Villingen-Schwenningen, DE;
Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Munich, DE;
Deutsche Thomson-Brandt GmbH, Hannover, DE;
Abstract
An optical detection device for detecting an intensity of a light beam in a detection window and for detecting data transmitted by the light beam includes a first detection diode and an array of at least two second detection diodes in a detection window. In addition, provision is made for a first readout circuit connectable to the first detection diode, for reading out the first detection diode at a first readout speed to detect the data, and for a second readout circuit connectable to the second detection diodes, for reading out the second detection diodes at a second readout speed smaller than the first readout speed, so as to detect the intensity of the light beam. A fundamental consideration underlying the present invention is that although the provision of additional detection diodes in the detection window initially is associated with additional expense and a reduction of the surface area of the detection window which may effectively be utilized for data detection, these disadvantages are outweighed however, by the fact that this array of additional detection diodes in the detection window enables more effective and/or less expensive control of the alignment of the light beam transmitting the data with the detection window.