Patents by Inventor Szabolcs Kautny
Szabolcs Kautny 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: 8780425Abstract: An apparatus and a method for reading from and/or writing to holographic storage media using a coaxial arrangement of an object beam and one or more reference beams or a coaxial arrangement of a reconstructed object beam and one or more reference beams is proposed. A focus of the one or more reference beams within a holographic storage medium is shifted along the optical axis relative to a focus of the object beam or the reconstructed object beam.Type: GrantFiled: October 20, 2009Date of Patent: July 15, 2014Assignee: Thomson LicensingInventors: Szabolcs Kautny, Krisztian Banko, Gabor Szarvas, Zoltan Karpati
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Patent number: 8068263Abstract: An apparatus for reading from and/or writing to transmission type holographic storage media is proposed, and more specifically a coaxial type apparatus for reading from and/or writing to transmission type holographic storage media with two or more reference beams, which has an improved Signal to Noise Ratio. The apparatus has a coaxial arrangement of two or more reference beams and an object beam or a reconstructed object beam. The reference beams are arranged on a circle around the object beam or the reconstructed object beam in a Fourier plane of the apparatus behind the holographic storage medium. A mirror is located in or close to this Fourier plane, which is designed such that it reflects the object beam or the reconstructed object beam without reflecting the reference beams.Type: GrantFiled: April 7, 2009Date of Patent: November 29, 2011Assignee: Thomson LicensingInventors: Gabor Szarvas, Szabolcs Kautny, Krisztian Banko, Zokan Karpati
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Patent number: 8031383Abstract: An apparatus for reading from or writing to holographic storage media, and more specifically a common aperture type apparatus for reading from or writing to holographic storage media with multiple reference beams having a reduced noise. In a common aperture type apparatus for reading from or writing to a holographic storage medium using shift-multiplexing, with a coaxial arrangement of two or more reference beams and an object beam or a reconstructed object beam, the reference beams being arranged around the object beam or the reconstructed object beam in a storage layer of the holographic storage medium. Each of the reference beams is located essentially halfway between two adjacent central peaks of shift-multiplexed holograms.Type: GrantFiled: October 7, 2008Date of Patent: October 4, 2011Assignee: Thomson LicensingInventors: Gabor Szarvas, Zoltan Karpati, Krisztian Banko, Szabolcs Kautny
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Patent number: 7835048Abstract: The present invention relates to a coaxial type apparatus for reading from and/or writing to holographic storage media with multiple reference beams. The invention further relates to a beam generator and a filter for use in such an apparatus. According to the invention, in an apparatus for reading from and/or writing to a holographic storage medium, with a coaxial arrangement of three or more focused reference beams and an object beam or a reconstructed object beam, the foci of the focused reference beams are arranged on a circle around the object beam in a Fourier plane of the apparatus. A beam generator generates the three or more reference beams from an incoming reference beam. A filter low-pass filters the object beam and rotates the polarization of the three or more reference beams.Type: GrantFiled: October 5, 2007Date of Patent: November 16, 2010Assignee: Thomson LicensingInventors: Gabor Szarvas, Szabolcs Kautny, Krisztian Banko, Zoltan Karpati
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Patent number: 7830572Abstract: The present invention relates to a holographic storage system, and more specifically to a holographic storage system using a phase spatial light modulator. According to the invention a holographic storage system with a phase SLM for imprinting a 2-dimensional phase data pattern onto an object beam includes a common path interferometer for converting the phase data pattern of the object beam into an intensity data pattern.Type: GrantFiled: June 13, 2007Date of Patent: November 9, 2010Assignee: Thomson LicensingInventors: Gabor Szarvas, Szabolcs Kautny, Laszlo Domjan, Svenja-Marei Kalisch
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Patent number: 7804631Abstract: The present invention relates to an apparatus for reading from and/or writing to holographic storage media, and more specifically to an apparatus for reading from and/or writing to holographic storage media having an apodization filter. According to the invention, an apparatus for reading from and/or writing to a holographic storage medium, with a collinear split aperture arrangement of a reference beam and an object beam or a reconstructed object beam, includes an apodization filter for the reference beam.Type: GrantFiled: October 15, 2007Date of Patent: September 28, 2010Assignee: Thomson LicensingInventors: Gabor Szarvas, Krisztian Banko, Zoltan Karpati, Szabolcs Kautny
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Publication number: 20100097670Abstract: An apparatus and a method for reading from and/or writing to holographic storage media using a coaxial arrangement of an object beam and one or more reference beams or a coaxial arrangement of a reconstructed object beam and one or more reference beams is proposed. A focus of the one or more reference beams within a holographic storage medium is shifted along the optical axis relative to a focus of the object beam or the reconstructed object beam.Type: ApplicationFiled: October 20, 2009Publication date: April 22, 2010Inventors: Szabolcs Kautny, Krisztian Banko, Gabor Szarvas, Zoltan Karpati
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Publication number: 20090262405Abstract: An apparatus for reading from and/or writing to transmission type holographic storage media is proposed, and more specifically a coaxial type apparatus for reading from and/or writing to transmission type holographic storage media with two or more reference beams, which has an improved Signal to Noise Ratio. The apparatus has a coaxial arrangement of two or more reference beams and an object beam or a reconstructed object beam. The reference beams are arranged on a circle around the object beam or the reconstructed object beam in a Fourier plane of the apparatus behind the holographic storage medium. A mirror is located in or close to this Fourier plane, which is designed such that it reflects the object beam or the reconstructed object beam without reflecting the reference beams.Type: ApplicationFiled: April 7, 2009Publication date: October 22, 2009Inventors: Gabor Szarvas, Szabolcs Kautny, Krisztian Banko, Zokan Karpati
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Publication number: 20090103152Abstract: The present invention relates to an apparatus for reading from and/or writing to holographic storage media, and more specifically to a common aperture type apparatus for reading from and/or writing to holographic storage media with multiple reference beams having a reduced noise. In a common aperture type apparatus for reading from and/or writing to a holographic storage medium using shift-multiplexing, with a coaxial arrangement of two or more reference beams and an object beam or a reconstructed object beam, the reference beams being arranged around the object beam or the reconstructed object beam in a storage layer of the holographic storage medium, each of the reference beams is located essentially halfway between two adjacent central peaks of shift-multiplexed holograms.Type: ApplicationFiled: October 7, 2008Publication date: April 23, 2009Inventors: Gabor Szarvas, Zoltan Karpati, Krisztian Banto, Szabolcs Kautny
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Publication number: 20080123166Abstract: The present invention relates to an apparatus for reading from and/or writing to holographic storage media, and more specifically to an apparatus for reading from and/or writing to holographic storage media having an apodization filter. According to the invention, an apparatus for reading from and/or writing to a holographic storage medium, with a collinear split aperture arrangement of a reference beam and an object beam or a reconstructed object beam, includes an apodization filter for the reference beam.Type: ApplicationFiled: October 15, 2007Publication date: May 29, 2008Inventors: Gabor Szarvas, Krisztian Banko, Zoltan Karpati, Szabolcs Kautny
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Publication number: 20080088898Abstract: Holographic storage system with multiple reference beams The present invention relates to a coaxial type apparatus for reading from and/or writing to holographic storage media with multiple reference beams. The invention further relates to a beam generator and a filter for use in such an apparatus. According to the invention, in an apparatus for reading from and/or writing to a holographic storage medium, with a coaxial arrangement of three or more focused reference beams and an object beam or a reconstructed object beam, the foci of the focused reference beams are arranged on a circle around the object beam in a Fourier plane of the apparatus. A beam generator generates the three or more reference beams from an incoming reference beam. A filter low-pass filters the object beam and rotates the polarization of the three or more reference beams.Type: ApplicationFiled: October 5, 2007Publication date: April 17, 2008Inventors: Gabor Szarvas, Szabolcs Kautny, Krisztian Banko, Zoltan Karpati
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Publication number: 20070297030Abstract: The present invention relates to a holographic storage system, and more specifically to a holographic storage system using a phase spatial light modulator. According to the invention a holographic storage system with a phase SLM for imprinting a 2-dimensional phase data pattern onto an object beam includes a common path interferometer for converting the phase data pattern of the object beam into an intensity data pattern.Type: ApplicationFiled: June 13, 2007Publication date: December 27, 2007Inventors: Gabor Szarvas, Szabolcs Kautny, Laszlo Domjan, Svenja-Marei Kalisch