Patents by Inventor Stefan Lang

Stefan Lang 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).

  • Patent number: 7769535
    Abstract: Method for dosing fuel injected into an engine, with a fuel quantity for an injector, the fuel quantity being divided into pilot and main injections for respective activation duration having activation duration corrective value, the method may include storing correlation data between fuel injection quantity and activation time under at least a state parameter of the injector, wherein the fuel injection quantity includes reference total injection quantities determined for predetermined operating states of the engine, determining a present operating state of the engine, placing the engine into one of the predetermined operating states, determining a present total injection quantity and a reference total injection quantity in one of the at least a state parameter of the injector, and defining the respective activation duration corrective value for the pilot and main injection considering a difference between the reference total injection quantity and the present total injection quantity.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 3, 2010
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Motor Europe Technical Center GmbH
    Inventors: Johannes Ullrich, Roland Steininger, Jurgen Grimm, Stefan Lang, Julian Kuric, Viktor Boschmann, Daniela Bollmann
  • Publication number: 20100100302
    Abstract: Method for dosing fuel injected into an engine, with a fuel quantity for an injector, the fuel quantity being divided into pilot and main injections for respective activation duration having activation duration corrective value, the method may include storing correlation data between fuel injection quantity and activation time under at least a state parameter of the injector, wherein the fuel injection quantity includes reference total injection quantities determined for predetermined operating states of the engine, determining a present operating state of the engine, placing the engine into one of the predetermined operating states, determining a present total injection quantity and a reference total injection quantity in one of the at least a state parameter of the injector, and defining the respective activation duration corrective value for the pilot and main injection considering a difference between the reference total injection quantity and the present total injection quantity.
    Type: Application
    Filed: January 21, 2009
    Publication date: April 22, 2010
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hyundai Motor Europe Technical Center GmbH
    Inventors: Johannes Ullrich, Roland Steininger, Jurgen Grimm, Stefan Lang, Julian Kuric, Viktor Boschmann, Daniela Bollmann
  • Publication number: 20080234667
    Abstract: The invention relates to a system and a method for the treatment of a patient's eye. The system comprises a laser apparatus, a scanning apparatus and an eye tracking apparatus for determining the actual position of the patient's eye and for generating alignment data of the patient's eye relative to a reference position of the patient's eye to the laser, said eye tracking apparatus being provided with a desired treatment shot file. Said scanning apparatus is connected via a first bidirectional bus to the eye tracking apparatus, said laser apparatus is connected via a second bidirectional bus to the eye tracking apparatus. The eye tracking apparatus adjusts the position data for each shot based on said alignment data of the patient's eye and provides aiming control signals representative of the target position data to the scanning apparatus for said shot via said first bidirectional bus.
    Type: Application
    Filed: September 27, 2006
    Publication date: September 25, 2008
    Inventors: Stefan Lang, Roland Toennies
  • Publication number: 20080186480
    Abstract: The present invention is based on the concept to detect the noise which is generated when a laser pulse of the excimer laser hits on a reference material. In particular where the laser pulse of an excimer laser hits on a reference material the radiation ablates a corresponding volume of the reference material by photodecomposition. The ablated volume of material which is proportional to the pulse energy applied to the reference material can be determined based on measuring the acoustic shock wave resulting from the ablation. The reference material is preferably a plate made of a material erodable by an excimer laser, more preferably a plate made of plastics and most preferably PMMA.
    Type: Application
    Filed: September 27, 2006
    Publication date: August 7, 2008
    Inventors: Stefan Lang, Roland Toennies
  • Patent number: 6814729
    Abstract: A device readable medium for use in controlling a laser vision correction system includes a storage structure having stored therein a pre-programmed first, readable, corrective instruction reference that corresponds to an encoded customized corrective instruction determined by a calculation module external to the medium. The encoded customized corrective instruction is executable by a laser vision correction laser platform for correction of a refractive defect when the corrective instruction reference is properly recognized. A laser vision correction system including the device readable medium is described. A remunerative model relating to the device readable medium is disclosed.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 9, 2004
    Assignee: TechnoVision GmbH
    Inventors: Gerhard Youssefi, Kristian Hohla, Stefan Lang
  • Publication number: 20040002695
    Abstract: A device readable medium for use in controlling a laser vision correction system includes a storage structure having stored therein a pre-programmed first, readable, corrective instruction reference that corresponds to an encoded customized corrective instruction determined by a calculation module external to the medium. The encoded customized corrective instruction is executable by a laser vision correction laser platform for correction of a refractive defect when the corrective instruction reference is properly recognized. A laser vision correction system including the device readable medium is described. A remunerative model relating to the device readable medium is disclosed.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Inventors: Gerhard Youssefi, Kristian Hohla, Stefan Lang
  • Patent number: 6662202
    Abstract: Data management systems of real-time systems are intended to provide user systems with rapid and consistent on-line management of various data generations. This is achieved by an access data structure which allows a generations management system (GMS) to carry out the management of various data generations on the basis of the same data objects already used on a previous occasion by a transaction management system (TMS) for carrying out transactions.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: December 9, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Krusche, Dirk Lukas, Stefan Lang, Jürgen Lantermann
  • Patent number: 5620436
    Abstract: A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation shot will impinge upon the eye. The method and apparatus further includes an aiming assistance fixture that provides a fixed frame of reference for locating the origin of the eye.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: April 15, 1997
    Assignee: Chiron Technolas GmbH Ophthalmologische Systeme
    Inventors: Stefan Lang, David R. Clonts
  • Patent number: 5201548
    Abstract: A method and apparatus of faithfully reproducing a multicolor image having three-dimensional texture utilizes a photomechanically reproduced copy of the image on a carrier substrate which is suitable for embossing and a matrix providing the three-dimensional textured characteristics of the image is used to electrolytically form a female embossing die corresponding to the shape of the matrix whereupon a complemental male embossing die is made by means of which the carrier may be squeezed between the male and female dies to produce a highly accurate copy exhibiting the coloration and fine detail of the image texture. Various end uses are contemplated.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: April 13, 1993
    Assignee: Artagraph Reproduction Technology Incorporated
    Inventors: Stefan Lang, Harvey Kalef
  • Patent number: 5182063
    Abstract: A method of faithfully reproducing a multicolor image having three-dimensional texture utilizes a photomechanically reproduced copy of the image on a carrier substrate which is suitable for embossing and a matrix providing the three-dimensional textured characteristics of the image is used to electrolytically form a female embossing die corresponding to the shape of the matrix whereupon a complemental male embossing die is made by which the carrier may be squeezed between the male and female dies to produce a highly accurate copy exhibiting the coloration and fine detail of the image texture.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: January 26, 1993
    Assignee: Artagraph Reproduction Technology Incorporated
    Inventors: Stefan Lang, Harvey Kalef
  • Patent number: 5116562
    Abstract: A new process for producing a reproduction of a painting or the like wherein the reproduction has a relief surface which imitates the relief surface of the painting or the like. Heat and pressure are applied simultaneously to an assembly consisting of a mold of the painting, a colored sheet for coloring the reproduction and a substrate to retain the reproduction. Subsequent to this step, shock cooling is applied. The reproduction thus produced does not suffer from the rebound effect of the prior art and good color integrity is maintained.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: May 26, 1992
    Assignee: Artagraph Reproduction Technology Inc.
    Inventor: Stefan Lang
  • Patent number: 4971743
    Abstract: A new process for producing a reproduction of a painting or the like wherein the reproduction has a relief surface which imitates the relief surface of the painting or the like. Heat and pressure are applied simultaneously to an assembly consisting of a mold of the painting, a colored sheet for coloring the reproduction and a substrate to retain the reproduction. Subsequent to this step, shock cooling is applied. The reproduction thus produced does not suffer from the rebound effect of the prior art and good color integrity is maintained.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: November 20, 1990
    Assignee: Artagraph Reproduction Technology Inc.
    Inventor: Stefan Lang
  • Patent number: D498309
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: November 9, 2004
    Assignee: Rehau AG & Co.
    Inventors: Helmut Koerner, Stefan Lang