Patents by Inventor Jürgen Reichenbach

Jürgen Reichenbach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240236466
    Abstract: An optoelectronic sensor for detecting objects in a detection zone is provided that comprises a light reception element for generating a received signal from light that is incident on the light reception element from the detection zone, a display device for highlighting the location of the detection zone for the human eye by a light pattern projected into the detection zone, and a control and evaluation unit for evaluating the received signal, In this respect, the light pattern has at least two partial patterns that are projected from different sources and that together mark a center of the detection zone independently of a distance into which the light pattern is projected into the detection zone.
    Type: Application
    Filed: October 16, 2023
    Publication date: July 11, 2024
    Inventors: Jürgen REICHENBACH, Andreas BEHRENS
  • Publication number: 20240137636
    Abstract: An optoelectronic sensor for detecting objects in a detection zone is provided that comprises a light reception element for generating a received signal from light that is incident on the light reception element from the detection zone, a display device for highlighting the location of the detection zone for the human eye by a light pattern projected into the detection zone, and a control and evaluation unit for evaluating the received signal, In this respect, the light pattern has at least two partial patterns that are projected from different sources and that together mark a center of the detection zone independently of a distance into which the light pattern is projected into the detection zone.
    Type: Application
    Filed: October 15, 2023
    Publication date: April 25, 2024
    Inventors: Jürgen REICHENBACH, Andreas BEHRENS
  • Patent number: 8360316
    Abstract: An apparatus (10), in particular a code reader, for the taking of undistorted images of a surface of objects (14) moved on a conveying device (12) is set forth, wherein the apparatus (10) has a geometry detection sensor (18) which is made for the detection of the geometry of the objects (14) with reference to spacing data and/or to the remission behavior of the objects (14) as well as a line sensor (20), in particular a line camera, which can scan the objects (14) linewise for the generation of image data of the surface in a linear reading window (22) which forms an angle with the conveying direction.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: January 29, 2013
    Assignee: Sick AG
    Inventors: Jürgen Reichenbach, Roland Gehring, Michael Wiegers, Jan Reich
  • Patent number: 8245838
    Abstract: An apparatus, in particular a code reader, for the recording of images of objects (14) moved on a conveyor device (12), wherein the apparatus includes a line sensor (10), in particular a line camera, which can scan objects line wise for the generation of image data of the surfaces, as well as a speed determination device (26; 30), which can determine the speed of movement of the objects (14) with respect to the line sensor (10) or their conveyed distance. At the same time an evaluation unit (26) is provided, which is adapted to match the recording frequency of the line sensor (10) to the speed of movement.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: August 21, 2012
    Assignee: Sick AG
    Inventors: Jürgen Reichenbach, Roland Gehring, Richard Nopper, Uwe Schöpflin, Reinhard Heizmann
  • Publication number: 20120019364
    Abstract: An RFID reading apparatus (10) is provided for stationary mounting at a reading zone (18) of a conveyor (12) or of a reading portal (40) for reading out at least one RFID transponder (22) moved on the conveyor (12) or through the reading portal (40), having a receiver (32) and a plurality of antennas (24, 26) connected to the receiver (32) for receiving RFID signals from the RFID transponder (22) as well as having an evaluation unit (36) for reading out RFID information from the received RFID signals, wherein the RFID reading apparatus (10) includes a first housing (28) in which the receiver (32) and the evaluation unit (36) are accommodated. In this respect, one of the antennas is an internal antenna (24) which is mechanically fastened to the first housing (28) and another of the antennas (28) is an external antenna.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 26, 2012
    Applicant: SICK AG
    Inventors: Jürgen REICHENBACH, Andreas GÜNTHER
  • Patent number: 7721964
    Abstract: The invention relates to an apparatus and a method for the sensing of objects moved through the field of view of an optical sensor comprising a device for the selection of regions of interest which are each associated only with a part of the field of view of the optical sensor, wherein a distance measurement device and/or a remission measurement device is/are integrated into the optical sensor or is/are connected in front of it or after it in the direction of movement of the objects, with the distance measurement device and/or the remission measurement device being designed for the determination of the spacing and/or of the remission of the object surfaces facing the distance measurement device and/or the remission measurement device and being coupled to an evaluation circuit for the calculating of the regions of interest in dependence on the determined spacings and/or remissions.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: May 25, 2010
    Assignee: Sick AG
    Inventors: Jürgen Reichenbach, Thomas Schopp, Hans-Werner Pierenkemper
  • Patent number: 7714914
    Abstract: The invention relates to a method for the correction of the brightness of a raw image generated by a sensor matrix, in which an intensity matching is carried out at picture elements defined by a line coordinate and a column coordinate and at least one intensity value. The intensity matching comprises the application to the intensity values of the picture elements to be corrected of two intensity corrections independent of one another, in dependence on the line coordinate, on the one hand, and in dependence on the column coordinate, on the other hand. The invention furthermore relates to an optoelectronic sensor comprising a correction device. This correction device is matched to carry out the initially described intensity matching.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: May 11, 2010
    Assignee: Sick AG
    Inventors: Jürgen Reichenbach, Carl Joseph Hafner, Ulrich Zwölfer
  • Patent number: 7510120
    Abstract: A code reader comprising an integrated light source for the illumination of a reading region, a sensor matrix and an optical receiving system positioned in front of the latter, wherein the light emergence surface of the light source is located in or closely in front of the depth of field zone of the optical receiving system.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: March 31, 2009
    Assignee: Sick AG
    Inventors: Jürgen Reichenbach, Wolfram Runge, Helmut Weber
  • Patent number: 7428688
    Abstract: A method of detecting two-dimensional codes using a plurality of light and dark data bits arranged two-dimensionally. The method includes detecting the code as a gray scale value image, splitting the detected gray scale value image into image areas corresponding to the individual data bits, determining a binarizing threshold representing a specific gray scale value for the image areas, carrying out a respective binarizing of the gray scale value of the individual image areas by means of a binarizing threshold to produce a bit sequence which represents the data bits and consists of the values 0 and 1, supplying the bit sequence to an error correction algorithm to recognize and/or correct bit errors within the bit sequence, identifying uncertain image areas whose gray scale values each lie close to the binarizing threshold, and taking the uncertain image areas into special account in the error correction.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: September 23, 2008
    Assignee: Sick AG
    Inventor: Juergen Reichenbach
  • Patent number: 7388984
    Abstract: The invention relates to a method of recognizing a code which is encoded inside an image data set which contains a piece of respective information on a gray scale value for each of a plurality of picture elements. At least one dilation operation and/or erosion operation is carried out on the image data set.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 17, 2008
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Christiane Stortz, Carl Joseph Hafner, Peter Hauser
  • Patent number: 7346213
    Abstract: A method for optically recognizing alphanumeric characters which involves storing polygonal outer contours and inner contours of reference characters and their relative geometrical positions as normalized reference curves transformed into a tangent space. Outer and inner contours of a character to be recognized are optically scanned and the scanned data is converted into binary data. The outer and inner contours of the character to be recognized are approximated as a polygon, and straight line segments of the polygon are normalized and transformed into a tangent space to generate character curves. The character to be recognized is compared to the reference characters in a rotation-invariant manner by shifting at least its character curve for the outer curve and the reference curves of the outer contours relative to each other in the tangent space until a surface area enclosed by the character curve and a given reference curve is at a minimum.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: March 18, 2008
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Achim Nuebling, Thomas Schopp
  • Patent number: 7213759
    Abstract: The invention relates to a method of reading a machine-readable barcode including a pre-determined number of code elements, in particular bars and spaces, with a respective picture being taken by means of optical imaging of at least two adjacent and/or mutually overlapping part sections of the bar code, with the individual part sections each including a code element and the part sections including in sum all the code elements of the barcode, with the pictures being stored in a data store, and with the stored pictures or parts thereof being put together for the reconstruction of the information encoded by the barcode. The invention further relates to a corresponding apparatus.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: May 8, 2007
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Carl Joseph Hafner, Uwe Schopflin
  • Patent number: 7215835
    Abstract: A method for operating an optical sensor which has a light receptor that receives line-by-line reflected or returned light for a complete picture. At least some of the received pictures are compressed with a picture compression algorithm. To process the picture and more quickly store it in a memory-saving manner, the optoelectronic sensors compress the picture simultaneously with its receipt by the receptor. Optoelectronic sensors for use in this manner can be a code laser or a laser scanner for determining distance or generating separation pictures.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: May 8, 2007
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Carl Joseph Hafner, Peter Hauser, Christiane Fillhardt
  • Patent number: 7128267
    Abstract: A device for optical scanning of markings, such as barcodes, has at least two transmitters (10, 20) that send light beams (12, 22) at different angles toward a rotating polygonal mirror (30), which deflects the light beams onto the markings being scanned. The light reflected by the markings is deflected by the polygonal mirrors (30) to separate receiver systems, so that the device has and simultaneously uses at least two separate transmitter/receiver channels.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: October 31, 2006
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Ralf Ulrich Nuebling, Christoph Anselment, Roland Gehring
  • Publication number: 20060236202
    Abstract: A method is described of detecting two-dimensional codes, in particular matrix codes, which include a plurality light and dark data bits arranged two dimensionally, in particular in matrix form. In the method, the code is detected as a gray scale value image; the detected gray scale value image is split into image areas corresponding to the individual data bits and a binarizing threshold representing a specific gray scale value is determined for the image areas. A respective binarizing of the gray scale value of the individual image areas is carried out by means of the binarizing threshold to produce a bit sequence which represents the data bits and consists of the values 0 and 1. The bit sequence is subsequently supplied to an error correction algorithm to recognize and/or correct bit errors within the bit sequence. In accordance with the invention, those so-called uncertain image areas are determined whose gray scale values each lie close to the binarizing threshold.
    Type: Application
    Filed: May 22, 2006
    Publication date: October 19, 2006
    Applicant: SICK AG
    Inventor: Juergen Reichenbach
  • Patent number: 7107506
    Abstract: A method is described of detecting two-dimensional codes, in particular matrix codes, which include a plurality of light and dark data bits arranged two-dimensionally, in particular in matrix form. In the method, the code is detected as a gray scale value image; the detected gray scale value image is split into image areas corresponding to the individual data bits and a binarizing threshold representing a specific gray scale value is determined for the image areas. A respective binarizing of the gray scale value of the individual image areas is carried out by means of the binarizing threshold to produce a bit sequence which represents the data bits and consists of the values 0 and 1. The bit sequence is subsequently supplied to an error correction algorithm to recognize and/or correct bit errors within the bit sequence. In accordance with the invention, those so-called uncertain image areas are determined whose gray scale values each lie close to the binarizing threshold.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 12, 2006
    Assignee: Sick AG
    Inventor: Juergen Reichenbach
  • Patent number: 7028903
    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.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: April 18, 2006
    Assignee: Sick AG
    Inventors: Juergen Reichenbach, Carl Joseph Hafner, Peter Hauser, Christiane Fillhardt
  • Publication number: 20050224581
    Abstract: The invention relates to a method of reading a machine-readable barcode including a pre-determined number of code elements, in particular bars and spaces, with a respective picture being taken by means of optical imaging of at least two adjacent and/or mutually overlapping part sections of the bar code, with the individual part sections each including a code element and the part sections including in sum all the code elements of the barcode, with the pictures being stored in a data store, and with the stored pictures or parts thereof being put together for the reconstruction of the information encoded by the barcode. The invention further relates to a corresponding apparatus.
    Type: Application
    Filed: March 8, 2005
    Publication date: October 13, 2005
    Applicant: Sick AG
    Inventors: Juergen Reichenbach, Carl Hafner, Uwe Schopflin
  • Publication number: 20050190424
    Abstract: A method and an apparatus for the optically scanning of objects, especially markings, use at least two emitters (10; 20) arranged so that light beams (12; 22) emitted by them sample or scan the object at different angles. The at least two emitters (10, 20) are arranged so that the emitted light beams (12, 24) strike reflecting surfaces (32) of a polygonal mirror (30) at different angles to a plane (36) that is perpendicular to an axis of rotation of the polygonal mirror, and which direct the beams onto the object being scanned so that the beams strike the object at different angles. The polygonal mirror (30) directs the beams reflected by the object onto an associated, separate receiver system to form at least two separate emitter/receiver channels.
    Type: Application
    Filed: February 28, 2005
    Publication date: September 1, 2005
    Applicant: Sick AG
    Inventors: Juergen Reichenbach, Roland Gehring, Daniel Schumacher
  • Publication number: 20050041870
    Abstract: A method for optically recognizing alphanumeric characters which involves storing polygonal outer contours and inner contours of reference characters and their relative geometrical positions as normalized reference curves transformed into a tangent space. Outer and inner contours of a character to be recognized are optically scanned and the scanned data is converted into binary data. The outer and inner contours of the character to be recognized are approximated as a polygon, and straight line segments of the polygon are normalized and transformed into a tangent space to generate character curves. The character to be recognized is compared to the reference characters in a rotation-invariant manner by shifting at least its character curve for the outer curve and the reference curves of the outer contours relative to each other in the tangent space until a surface area enclosed by the character curve and a given reference curve is at a minimum.
    Type: Application
    Filed: August 13, 2004
    Publication date: February 24, 2005
    Applicant: Sick AG
    Inventors: Juergen Reichenbach, Achim Nuebing, Thomas Schopp