Patents by Inventor Patrick Khayat
Patrick Khayat 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: 20250284589Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising performing a data integrity check on a first set of memory cells to obtain a data integrity metric value; responsive to determining that the data integrity metric value satisfies a threshold criterion, determining whether a threshold number of second sets of memory cells, configured to store the first number of bits per memory cell, are available for a memory management operation; and responsive to determining that the threshold number of second sets of memory cells are available, causing the memory device to perform the memory management operation by copying data from the first set of memory cells and from the threshold number of second sets of memory cells to a third set of memory cells.Type: ApplicationFiled: May 22, 2025Publication date: September 11, 2025Inventors: Vamsi Pavan Rayaprolu, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Patrick Khayat, Sampath Ratnam, Kishore Kumar Muchherla, Jiangang Wu, James Fitzpatrick
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Patent number: 12332742Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising performing a data integrity check on a source set of memory cells, configured to store a first number of bits per memory cell, to obtain a data integrity metric value; responsive to determining that the data integrity metric value satisfies the threshold criterion, performing an error handling operation on the data stored on the source set of memory cells to generate corrected data; and causing the memory device to copy data the corrected data to a destination set of memory cells of the memory device, wherein the destination set of memory cells are configured to store a second number of bits per memory cell, wherein the second number of bits per memory cells is greater than the first number of bits per memory cell.Type: GrantFiled: February 5, 2024Date of Patent: June 17, 2025Assignee: Micron Technology, Inc.Inventors: Vamsi Pavan Rayaprolu, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Patrick Khayat, Sampath Ratnam, Kishore Kumar Muchherla, Jiangang Wu, James Fitzpatrick
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Publication number: 20240176698Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising performing a data integrity check on a source set of memory cells, configured to store a first number of bits per memory cell, to obtain a data integrity metric value; responsive to determining that the data integrity metric value satisfies the threshold criterion, performing an error handling operation on the data stored on the source set of memory cells to generate corrected data; and causing the memory device to copy data the corrected data to a destination set of memory cells of the memory device, wherein the destination set of memory cells are configured to store a second number of bits per memory cell, wherein the second number of bits per memory cells is greater than the first number of bits per memory cell.Type: ApplicationFiled: February 5, 2024Publication date: May 30, 2024Inventors: Vamsi Pavan Rayaprolu, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Patrick Khayat, Sampath Ratnam, Kishore Kumar Muchherla, Jiangang Wu, James Fitzpatrick
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Patent number: 11934266Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising selecting a source set of memory cells of the memory device, wherein the source set of memory cells are configured to store a first number of bits per memory cell; performing a data integrity check on the source set of memory cells to obtain a data integrity metric value; determining whether the data integrity metric value satisfies a threshold criterion; and responsive to determining that the data integrity metric value fails to satisfy the threshold criterion, causing the memory device to copy data from the source set of memory cells to a destination set of memory cells of the memory device, wherein the destination set of memory cells are configured to store a second number of bits per memory cell.Type: GrantFiled: July 7, 2022Date of Patent: March 19, 2024Assignee: Micron Technology, Inc.Inventors: Vamsi Pavan Rayaprolu, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Patrick Khayat, Sampath Ratnam, Kishore Kumar Muchherla, Jiangang Wu, James Fitzpatrick
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Publication number: 20230393938Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising selecting a source set of memory cells of the memory device, wherein the source set of memory cells are configured to store a first number of bits per memory cell; performing a data integrity check on the source set of memory cells to obtain a data integrity metric value; determining whether the data integrity metric value satisfies a threshold criterion; and responsive to determining that the data integrity metric value fails to satisfy the threshold criterion, causing the memory device to copy data from the source set of memory cells to a destination set of memory cells of the memory device, wherein the destination set of memory cells are configured to store a second number of bits per memory cell.Type: ApplicationFiled: July 7, 2022Publication date: December 7, 2023Inventors: Vamsi Pavan Rayaprolu, Mustafa N. Kaynak, Sivagnanam Parthasarathy, Patrick Khayat, Sampath Ratnam, Kishore Kumar Muchherla, Jiangang Wu, James Fitzpatrick
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Publication number: 20230195385Abstract: A system can include a memory device and a processing device, operatively coupled with the memory device, to perform operations including receiving data to be stored on the memory device, storing a first copy of the data in a first set of memory cells of the memory device, and storing a second copy of the data in a second set of memory cells of the memory device. The operations can also include reading the first copy of the data and determining whether a threshold voltage of a cell in the first set of memory cells is within an overlapping range of voltage distributions, and reading the second copy of the data and determining whether the threshold voltage of a cell in the second set of memory cells is within an overlapping range of voltage distributions. They can also include using the second copy of the data.Type: ApplicationFiled: March 10, 2022Publication date: June 22, 2023Inventors: Jeffrey S. McNeil, Kishore Kumar Muchherla, Sivagnanam Parthasarathy, Patrick Khayat, Sundararajan Sankaranarayanan, Jeremy Binfet, Akira Goda
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Patent number: 8510642Abstract: A system for decoding data includes a symbol based error correction code device. The error correction code device includes a channel detector configured to generate probability mass function (PMF) information. The error correction code device further includes a decoder coupled to the channel detector. The decoder is configured to use the PMF information from the channel detector to perform an error correction code operation. The decoder also is configured to generate PMF information. The channel detector is configured to receive extrinsic PMF information in a turbo equalization scheme.Type: GrantFiled: December 16, 2009Date of Patent: August 13, 2013Assignee: STMicroelectronics, Inc.Inventors: Alessandro Risso, Mustafa N. Kaynak, Patrick Khayat
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Publication number: 20110075287Abstract: A system for decoding data includes a symbol based error correction code device. The error correction code device includes a channel detector configured to generate probability mass function (PMF) information. The error correction code device further includes a decoder coupled to the channel detector. The decoder is configured to use the PMF information from the channel detector to perform an error correction code operation. The decoder also is configured to generate PMF information. The channel detector is configured to receive extrinsic PMF information in a turbo equalization scheme.Type: ApplicationFiled: December 16, 2009Publication date: March 31, 2011Applicant: STMicroelectronics, Inc.Inventors: Alessandro Risso, Mustafa N. Kaynak, Patrick Khayat