公开(公告)号：US10719239B2

公开(公告)日：2020-07-21

申请号：US15981789

申请日：2018-05-16

Applicant: Microsoft Technology Licensing, LLC

Inventor： 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

IPC: G11B7/0065 ,  G06F3/06 ,  G06N20/00 ,  G11B7/085

Abstract: 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.

公开(公告)号：US10236027B1

公开(公告)日：2019-03-19

申请号：US15894778

申请日：2018-02-12

Applicant: Microsoft Technology Licensing, LLC

Inventor： Andreas Georgiou ,  Joel Steven Kollin ,  James Hilton Clegg ,  Patrick Neil Anderson

IPC: G11B7/00 ,  G11B7/127 ,  G11B11/105 ,  G11B7/0065 ,  G02B27/10 ,  G11B7/1372

Abstract: An optical data-storage system comprises a laser, an imaging optic, and associated computer logic. The laser is configured to emit a pulsed wavefront having uniform phase and polarization. The imaging optic is configured to modulate the phase and polarization of different portions of the wavefront by different amounts, and to diffract light from the different portions to a substrate with writeable optical properties. The logic is configured to receive data and to control modulation of the phase and polarization such that the light diffracted from the imaging optic writes the data to the substrate.

公开(公告)号：US10672428B1

公开(公告)日：2020-06-02

申请号：US16408374

申请日：2019-05-09

Applicant: Microsoft Technology Licensing, LLC

Inventor： Richard John Black ,  Patrick Neil Anderson ,  Rokas Drevinskas ,  Austin Nicholas Donnelly ,  Hugh David Paul Williams

IPC: G11B7/0045

Abstract: 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.

公开(公告)号：US12183378B2

公开(公告)日：2024-12-31

申请号：US18194231

申请日：2023-03-31

Applicant: Microsoft Technology Licensing, LLC

Inventor： 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

IPC: G11B7/24044 ,  G11B7/0045 ,  G11B7/1353 ,  G11B7/1365 ,  G11B7/00

Abstract: 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.

公开(公告)号：US11341620B2

公开(公告)日：2022-05-24

申请号：US16867323

申请日：2020-05-05

Applicant: Microsoft Technology Licensing, LLC

Inventor： Ariel Gomez Diaz ,  David Lara Saucedo ,  Peter Gyula Scholtz ,  Patrick Neil Anderson ,  Rokas Drevinskas ,  Richard John Black ,  James Hilton Clegg

IPC: G06T5/00 ,  G06T5/20

Abstract: 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.

公开(公告)号：US10768825B2

公开(公告)日：2020-09-08

申请号：US16680865

申请日：2019-11-12

Applicant: Microsoft Technology Licensing, LLC

Inventor： 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

IPC: G11B27/36 ,  G06F3/06 ,  G06N20/00 ,  G11B7/085

Abstract: 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.