Patents by Inventor Rokas DREVINSKAS
Rokas DREVINSKAS 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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Publication number: 20240331731Abstract: A method of writing voxels to a substrate using a laser writing system comprises forming a first voxel at a first position in a substrate using a first laser pulse; detecting light emitted or scattered by the substrate as a result of forming the first voxel; determining whether the detected light satisfies a predetermined constraint; and, when the detected light does not satisfy the predetermined constraint, adjusting an amplitude of a second laser pulse. Light emission or scattering from the substrate as a result of forming a voxel is related to the properties of the formed voxel. By monitoring such emission or scattering, it is made possible to compensate for variations in performance of the laser writing system. Also provided herein are a laser writing system and computer program product which implement the method.Type: ApplicationFiled: March 31, 2023Publication date: October 3, 2024Applicant: Microsoft Technology Licensing, LLCInventors: Masaaki SAKAKURA, Timothy John DEEGAN, Rokas DREVINSKAS, Thomas Torsten DR WINKLER, Daniel Jonathan Finchley CLETHEROE, Richard John BLACK, Patrick Neil ANDERSON, Austin Nicholas DONNELLY, Ioan Alexandru STEFANOVICI
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Publication number: 20240331730Abstract: A method of writing data to a transparent substrate comprises forming a first voxel by focusing a first laser pulse on a first location in a transparent substrate; and forming a second voxel by focusing a second laser pulse on a second location in the transparent substrate. The first laser pulse and the second laser pulse have different amplitudes, resulting in the first and second voxels having different strengths. Also provided are a system useful for implementing the method; an optical data storage medium obtainable by the method; and a method of reading data from the optical data storage medium.Type: ApplicationFiled: March 31, 2023Publication date: October 3, 2024Applicant: Microsoft Technology Licensing, LLCInventors: Thomas Torsten DR WINKLER, Rokas DREVINSKAS, Ariel GOMEZ DIAZ, Charles Ernest WHITTAKER, Timothy John DEEGAN, James Hilton CLEGG, Daniel Jonathan Finchley CLETHEROE, Hugh David Paul WILLIAMS, Austin Nicholas DONNELLY, Richard John BLACK, Masaaki SAKAKURA, Teodora ILIEVA, Bridgette Rosanna Doris COOPER, Ioan Alexandru STEFANOVICI, Erika Blancada ARANAS, Pablo Rafael Andreas Wilke BERENGUER
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Publication number: 20240331732Abstract: A method for forming birefringent voxels comprises simultaneously generating a first seed pulse and a first data pulse. The first seed pulse and the first data pulse are spatially-separated laser pulses having different amplitudes. The first seed pulse is focused at a first seed location, and the data pulse is focused at a first data location. The first seed location and the first data location are separated by a predetermined distance along a scan path, with the first seed location being ahead of the first data location. Subsequently, a second seed pulse and a second data pulse are generated, and focused at a second seed location and second data location, respectively. The second seed and data locations are separated by the predetermined distance. The second data location is the same as the first seed location, resulting in formation of a birefringent voxel.Type: ApplicationFiled: March 31, 2023Publication date: October 3, 2024Applicant: Microsoft Technology Licensing, LLCInventors: Masaaki SAKAKURA, Rokas DREVINSKAS, Daniel Jonathan Finchley CLETHEROE, Richard John BLACK, Austin Nicholas DONNELLY, Timothy John DEEGAN, James Hilton CLEGG, Philip Athelstan WAINMAN, Patrick Neil ANDERSON, Teodora ILIEVA, Thomas Torsten DR WINKLER, Pablo Rafael Andreas Wilke BERENGUER, Erika Blancada ARANAS, Bridgette Rosanna Doris COOPER, Ioan Alexandru STEFANOVICI
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Patent number: 11802993Abstract: An optical element for modifying an incident laser beam propagated through the optical element from an input face to an output face via a geometric phase birefringent effect, the optical element comprising: a substrate of a transparent amorphous material with an input face and an opposite output face; and a structural modification in a volume of the substrate between the input face and output face comprising a plurality of randomly positioned nanostructures; wherein each nanostructure has a oblate spheroidal shape with an elliptical cross section in a plane parallel to the input face, the elliptical cross-section having a minor axis substantially not larger than 30 nm and a major axis greater than the minor axis, and each nanostructure having a length in a direction perpendicular to the input face which is substantially not larger than 100 nm.Type: GrantFiled: February 13, 2019Date of Patent: October 31, 2023Assignee: University of SouthamptonInventors: Rokas Drevinskas, Peter Kazansky, Ausra Cerkauskaite
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Publication number: 20230327391Abstract: Examples are disclosed that relate to efficiently producing multiple laser beams of a harmonic frequency from a fundamental frequency beam. One example provides a laser system comprising a laser configured to output a fundamental frequency beam, a first harmonic-generation stage, and a second harmonic-generation stage. The first harmonic-generation stage is configured to receive an input of the fundamental frequency beam from the laser, and output from the laser system a first-stage harmonic frequency beam and a first-stage residual fundamental frequency beam. The second harmonic-generation stage is configured to receive an input of the first-stage residual fundamental frequency beam, and to output from the laser system a second-stage harmonic frequency beam.Type: ApplicationFiled: May 27, 2022Publication date: October 12, 2023Applicant: Microsoft Technology Licensing, LLCInventors: Richard John BLACK, Rokas DREVINSKAS, Patrick Neil ANDERSON, Masaaki SAKAKURA, Thomas Torsten DR WINKLER, David LARA SAUCEDO
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Patent number: 11341620Abstract: One example provides a computer-implemented method for reading data stored as birefringence values in a storage medium. The method comprises acquiring an image of a voxel of the storage medium, applying a first low-pass filter with a first cutoff frequency to the image of the voxel to obtain a first background image, applying a second low-pass filter with a second cutoff frequency to the image of the voxel to obtain a second background image, the second cutoff frequency being different than the first cutoff frequency, determining an enhanced background image from the first background image and the second background image, determining birefringence values for the enhanced background image, determining birefringence values for the image of the voxel, and correcting the birefringence values for the image of the voxel based upon the birefringence values for the enhanced background image.Type: GrantFiled: May 5, 2020Date of Patent: May 24, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Ariel Gomez Diaz, David Lara Saucedo, Peter Gyula Scholtz, Patrick Neil Anderson, Rokas Drevinskas, Richard John Black, James Hilton Clegg
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Publication number: 20210350510Abstract: One example provides a computer-implemented method for reading data stored as birefringence values in a storage medium. The method comprises acquiring an image of a voxel of the storage medium, applying a first low-pass filter with a first cutoff frequency to the image of the voxel to obtain a first background image, applying a second low-pass filter with a second cutoff frequency to the image of the voxel to obtain a second background image, the second cutoff frequency being different than the first cutoff frequency, determining an enhanced background image from the first background image and the second background image, determining birefringence values for the enhanced background image, determining birefringence values for the image of the voxel, and correcting the birefringence values for the image of the voxel based upon the birefringence values for the enhanced background image.Type: ApplicationFiled: May 5, 2020Publication date: November 11, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Ariel GOMEZ DIAZ, David LARA SAUCEDO, Peter Gyula SCHOLTZ, Patrick Neil ANDERSON, Rokas DREVINSKAS, Richard John BLACK, James Hilton CLEGG
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Publication number: 20200408953Abstract: An optical element for modifying an incident laser beam propagated through the optical element from an input face to an output face via a geometric phase birefringent effect, the optical element comprising: a substrate of a transparent amorphous material with an input face and an opposite output face; and a structural modification in a volume of the substrate between the input face and output face comprising a plurality of randomly positioned nanostructures; wherein each nanostructure has a oblate spheroidal shape with an elliptical cross section in a plane parallel to the input face, the elliptical cross-section having a minor axis substantially not larger than 30 nm and a major axis greater than the minor axis, and each nanostructure having a length in a direction perpendicular to the input face which is substantially not larger than 100 nm.Type: ApplicationFiled: February 13, 2019Publication date: December 31, 2020Inventors: Rokas DREVINSKAS, Peter KAZANSKY, Ausra CERKAUSKAITE
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Patent number: 10768825Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: GrantFiled: November 12, 2019Date of Patent: September 8, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
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Patent number: 10719239Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: GrantFiled: May 16, 2018Date of Patent: July 21, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
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Patent number: 10672428Abstract: A method to record data in a solid substrate comprises modulating a polarization angle of a coherent optical pulsetrain, and, while the polarization angle is being modulated, focusing the coherent optical pulsetrain on a locus moving through the solid substrate at a relative velocity. Here the relative velocity, a width of the locus in a direction of the relative velocity, and a rate of modulation of the polarization angle are such that the substrate receives within the width of the locus two or more pulses of the optical pulsetrain differing in polarization angle. In this manner, the two or more pulses record, in different portions of the substrate within the width of the locus, two or more different symbols.Type: GrantFiled: May 9, 2019Date of Patent: June 2, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Richard John Black, Patrick Neil Anderson, Rokas Drevinskas, Austin Nicholas Donnelly, Hugh David Paul Williams
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Publication number: 20200081619Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Antony Ian Taylor ROWSTRON, Ioan Alexandru STEFANOVICI, Aaron William OGUS, Douglas Wayne PHILLIPS, Richard John BLACK, Austin Nicholas DONNELLY, Alexander Lloyd GAUNT, Andreas GEORGIOU, Ariel GOMEZ DIAZ, Serguei Anatolievitch LEGTCHENKO, Reinhard Sebastian Bernhard NOWOZIN, Benn Charles THOMSEN, Hugh David Paul WILLIAMS, David LARA SAUCEDO, Patrick Neil ANDERSON, Andromachi CHATZIELEFTHERIOU, John Christopher DAINTY, James Hilton CLEGG, Raluca Andreea DIACONU, Rokas DREVINSKAS, Mengyang YANG
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Publication number: 20190354283Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: ApplicationFiled: May 16, 2018Publication date: November 21, 2019Applicant: Microsoft Technology Licensing, LLCInventors: Antony Ian Taylor ROWSTRON, Ioan Alexandru STEFANOVICI, Aaron William OGUS, Douglas Wayne PHILLIPS, Richard John BLACK, Austin Nicholas DONNELLY, Alexander Lloyd GAUNT, Andreas GEORGIOU, Ariel GOMEZ DIAZ, Serguei Anatolievitch LEGTCHENKO, Reinhard Sebastian Bernhard NOWOZIN, Benn Charles THOMSEN, Hugh David Paul WILLIAMS, David LARA SAUCEDO, Patrick Neil ANDERSON, Andromachi CHATZIELEFTHERIOU, John Christopher DAINTY, James Hilton CLEGG, Raluca Andreea DIACONU, Rokas DREVINSKAS, Mengyang YANG