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公开(公告)号：US20210349010A1
公开(公告)日：2021-11-11
申请号：US16867359
申请日：2020-05-05
发明人： Ariel GOMEZ DIAZ , David LARA SAUCEDO , Peter Gyula SCHOLTZ , Ioan Alexandru STEFANOVICI , Pashmina Jonathan CAMERON , Govert Michael VERKES , Richard John BLACK , Timothy John DEEGAN , James Hilton CLEGG , Antony Ian Taylor ROWSTRON
摘要： One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
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公开(公告)号：US20240248292A1
公开(公告)日：2024-07-25
申请号：US18158582
申请日：2023-01-24
发明人： Hugh WILLIAMS , Ariel GOMEZ DIAZ , Charles Ernest WHITTAKER , James Hilton CLEGG , Richard John BLACK
摘要： A method of calibrating a polarized light microscope comprises placing an optical data storage medium in a sample stage of the polarized light microscope, the optical data storage medium comprising a substrate having birefringent voxels embedded therein; measuring a background birefringence of the optical data storage medium; adjusting the polarized light microscope to compensate for the background birefringence. By correcting for background birefringence, image contrast may be improved. Further improvements may be obtained by optimizing swing angles of measurement states after compensating for the background birefringence. Also provided is a method of reading data from a birefringent optical data storage medium, and a system useful for implementing the methods.
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公开(公告)号：US20190354283A1
公开(公告)日：2019-11-21
申请号：US15981789
申请日：2018-05-16
发明人： 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
摘要： 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.
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公开(公告)号：US20220404268A1
公开(公告)日：2022-12-22
申请号：US17821003
申请日：2022-08-19
发明人： Ariel GOMEZ DIAZ , David LARA SAUCEDO , Peter Gyula SCHOLTZ , Ioan Alexandru STEFANOVICI , Pashmina Jonathan CAMERON , Govert Michael VERKES , Richard John BLACK , Timothy John DEEGAN , James Hilton CLEGG , Antony Ian Taylor ROWSTRON
摘要： One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
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公开(公告)号：US20200081619A1
公开(公告)日：2020-03-12
申请号：US16680865
申请日：2019-11-12
发明人： 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
摘要： 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.
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公开(公告)号：US20240331730A1
公开(公告)日：2024-10-03
申请号：US18194113
申请日：2023-03-31
发明人： 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
CPC分类号： G11B7/0051 , G11B7/126 , G11B2007/0013 , G11B2007/25301
摘要： 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.
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公开(公告)号：US20210350510A1
公开(公告)日：2021-11-11
申请号：US16867323
申请日：2020-05-05
发明人： Ariel GOMEZ DIAZ , David LARA SAUCEDO , Peter Gyula SCHOLTZ , Patrick Neil ANDERSON , Rokas DREVINSKAS , Richard John BLACK , James Hilton CLEGG
摘要： 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.
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