Patents by Inventor Daniel Kreye
Daniel Kreye 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).
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Patent number: 11536949Abstract: A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.Type: GrantFiled: September 27, 2018Date of Patent: December 27, 2022Assignee: Robert Bosch GmbHInventors: Alexander Ehlert, Daniel Kreye, Hendrik Specht
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Publication number: 20200285046Abstract: A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.Type: ApplicationFiled: September 27, 2018Publication date: September 10, 2020Inventors: Alexander Ehlert, Daniel Kreye, Hendrik Specht
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Patent number: 9456189Abstract: A projector having at least one laser diode which is designed to emit light, having a laser control device which is designed to control the at least one laser diode, having a first controllable resonant mirror which is designed to reflect the light that is emitted by the laser diode, and having a control device which is designed to control the orientation of the first controllable resonant mirror. The control device is further designed to reduce the power supply to the laser diode and to the laser control device in a first configuration of a power-saving mode of the projector, and to further control the orientation of the first controllable resonant mirror at a resonant frequency of the first controllable resonant mirror. Moreover, a corresponding method is described.Type: GrantFiled: May 14, 2014Date of Patent: September 27, 2016Assignee: ROBERT BOSCH GMBHInventors: Christoph Delfs, Frank Fischer, Marcellino Gemelli, Alexander Ehlert, Daniel Kreye, Mathias Schmauke
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Patent number: 9436071Abstract: A method for reducing a light intensity of a projection device is provided which includes the following steps: projecting information in the form of a visual representation onto a total area; emitting a plurality of electromagnetic signals which are essentially imperceptible to an observer onto the total area, using the projection device; detecting objects situated in the light path between the projection device and the total area with the aid of the electromagnetic signals; and reducing the light intensity of the projection device as long as an object is detected in the light path.Type: GrantFiled: February 25, 2013Date of Patent: September 6, 2016Assignee: ROBERT BOSCH GMBHInventors: Daniel Kreye, Frank Fischer, David Slogsnat, Ming Liu, Gael Pilard
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Patent number: 9414012Abstract: A device for projecting an image includes: a video signal device designed to provide a video signal that has a first image refresh rate; a mirror control device designed to control a micro-mirror device with a second image refresh rate adapted to at least one characteristic of the micro-mirror device and to the first image refresh rate; and a projection device designed to project the video signal provided by the video signal device with the first image refresh rate, using the micro-mirror device moved by the second image refresh rate.Type: GrantFiled: February 1, 2013Date of Patent: August 9, 2016Assignee: ROBERT BOSCH GMBHInventors: Mohamad Iyad Al Dibs, Frank Fischer, David Slogsnat, Oliver Krayl, Daniel Kreye
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Patent number: 9066379Abstract: A circuit arrangement for organic light-emitting diodes can be arranged in a two-dimensional matrix. It can in particular be used with microdisplays. It can allow a wide influencing of the brightness of the electromagnetic radiation emitted by the organic light-emitting diodes. Every organic light-emitting diode can be controlled by means of a storage circuit, a sense amplifier and a driver circuit using the circuit arrangement. The driver circuit can be formed by at least three transistors connected in series and a further output transistor whose drain is connected to the anode of the respective organic light-emitting diode. In this respect, the transistor acting as the driver can have a constant electric operating voltage LVDD applied at its source and a further likewise constant electric operating voltage Vdrive is applied to its gate.Type: GrantFiled: April 27, 2011Date of Patent: June 23, 2015Assignee: Fraunhofer-Geselleschaft zur Förderung der angewandten Forschung e.V.Inventors: Daniel Kreye, Thomas Presberger
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Publication number: 20150163451Abstract: A device for projecting an image includes: a video signal device designed to provide a video signal that has a first image refresh rate; a mirror control device designed to control a micro-mirror device with a second image refresh rate adapted to at least one characteristic of the micro-mirror device and to the first image refresh rate; and a projection device designed to project the video signal provided by the video signal device with the first image refresh rate, using the micro-mirror device moved by the second image refresh rate.Type: ApplicationFiled: February 1, 2013Publication date: June 11, 2015Inventors: Mohamad Iyad Al Dibs, Frank Fischer, David Slogsnat, Oliver Krayl, Daniel Kreye
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Publication number: 20150138167Abstract: A method for reducing a light intensity of a projection device is provided which includes the following steps: projecting information in the form of a visual representation onto a total area; emitting a plurality of electromagnetic signals which are essentially imperceptible to an observer onto the total area, using the projection device; detecting objects situated in the light path between the projection device and the total area with the aid of the electromagnetic signals; and reducing the light intensity of the projection device as long as an object is detected in the light path.Type: ApplicationFiled: February 25, 2013Publication date: May 21, 2015Inventors: Daniel Kreye, Frank Fischer, David Slogsnat, Ming Liu, Gael Pilard
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Publication number: 20140340655Abstract: A projector having at least one laser diode which is designed to emit light, having a laser control device which is designed to control the at least one laser diode, having a first controllable resonant mirror which is designed to reflect the light that is emitted by the laser diode, and having a control device which is designed to control the orientation of the first controllable resonant mirror. The control device is further designed to reduce the power supply to the laser diode and to the laser control device in a first configuration of a power-saving mode of the projector, and to further control the orientation of the first controllable resonant mirror at a resonant frequency of the first controllable resonant mirror. Moreover, a corresponding method is described.Type: ApplicationFiled: May 14, 2014Publication date: November 20, 2014Applicant: ROBERT BOSCH GMBHInventors: Christoph DELFS, Frank FISCHER, Marcellino GEMELLI, Alexander EHLERT, Daniel KREYE, Mathias SCHMAUKE
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Publication number: 20140232643Abstract: A laser projection device is described having a projection unit, which is designed to project an image and to generate an interrupt signal as a function of a distance of the projection unit from at least one object located in front of the projection unit in the projection direction, and having an application control unit, which is designed to control the projection unit as a function of the interrupt signal. A method is also described.Type: ApplicationFiled: June 19, 2012Publication date: August 21, 2014Inventors: Mohamad Iyad Al Dibs, Frank Fischer, Christoph Puttmann, David Slogsnat, Sebastian Reiss, Daniel Kreye
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Publication number: 20140153599Abstract: A method for operating a laser light source including the steps: a) cyclically ascertaining an electrical voltage drop at the laser light source by energizing the laser light source; b) cyclically ascertaining a temperature of the laser light source from the ascertained electrical voltage drop with the aid of a first mathematical connection previously ascertained from the electrical voltage and the temperature of the laser light source; c) ascertaining a current which causes an essentially constant visual output of the laser light source for each ascertained temperature value with the aid of a second mathematical connection from the visual output and the current; and d) energizing the laser light source using this current.Type: ApplicationFiled: December 5, 2013Publication date: June 5, 2014Applicant: ROBERT BOSCH GMBHInventors: Christoph DELFS, Ming LIU, Daniel KREYE
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Publication number: 20130285985Abstract: A method for ascertaining a gesture performed in the light cone of a projected image which has a plurality of pixels includes: detecting all pixels of the projected image and one or multiple parameter values of the individual pixels; comparing the one or the multiple detected parameter values of the individual pixels with a parameter comparison value; assigning a subset of the pixels to a pixel set as a function of the results of the comparison; and ascertaining a gesture performed in the light cone of the projected image based on the assigned pixel set.Type: ApplicationFiled: April 24, 2013Publication date: October 31, 2013Applicant: Robert Bosch GmbHInventors: Stefan PINTER, Reiner SCHNITZER, Frank FISCHER, Gael PILARD, Ming LIU, David SLOGSNAT, Daniel KREYE, Tobias HIPP
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Publication number: 20130099700Abstract: A circuit arrangement for organic light-emitting diodes can be arranged in a two-dimensional matrix. It can in particular be used with microdisplays. It can allow a wide influencing of the brightness of the electromagnetic radiation emitted by the organic light-emitting diodes. Every organic light-emitting diode can be controlled by means of a storage circuit, a sense amplifier and a driver circuit using the circuit arrangement. The driver circuit can be formed by at least three transistors connected in series and a further output transistor whose drain is connected to the anode of the respective organic light-emitting diode. In this respect, the transistor acting as the driver can have a constant electric operating voltage LVDD applied at its source and a further likewise constant electric operating voltage Vdrive is applied to its gate.Type: ApplicationFiled: April 27, 2011Publication date: April 25, 2013Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Daniel Kreye, Thomas Presberger
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Patent number: 8274034Abstract: The invention relates to optical arrangements which can be provided, preferably also in miniaturized form, for the most varied applications. They can be used in many sectors of life and also commercially, and indeed whenever information should be presented visually and/or optical information should be recognized and taken into account. It is the object of the invention to provide optical arrangements with which different optical information can be utilized in more complex form together in one arrangement. The optical arrangement in accordance with the invention is configured such that elements both emitting and detecting electromagnetic radiation are arranged on a common substrate or are configured thereat. A plurality of these elements are preferably present together in each case. It can, however, also be sufficient for specific applications to provide in each case an emitting or a detecting element with a plurality of the respective other elements.Type: GrantFiled: June 14, 2007Date of Patent: September 25, 2012Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Uwe Vogel, Jorg Amelung, Daniel Kreye
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Publication number: 20100012817Abstract: The invention relates to optical arrangements which can be provided, preferably also in miniaturized form, for the most varied applications. They can be used in many sectors of life and also commercially, and indeed whenever information should be presented visually and/or optical information should be recognized and taken into account. It is the object of the invention to provide optical arrangements with which different optical information can be utilized in more complex form together in one arrangement. The optical arrangement in accordance with the invention is configured such that elements both emitting and detecting electromagnetic radiation are arranged on a common substrate or are configured thereat. A plurality of these elements are preferably present together in each case. It can, however, also be sufficient for specific applications to provide in each case an emitting or a detecting element with a plurality of the respective other elements.Type: ApplicationFiled: June 14, 2007Publication date: January 21, 2010Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forshung e.V.Inventors: Uwe VOGEL, Jorg AMELUNG, Daniel KREYE