Patents by Inventor Yoshiki NOTANI
Yoshiki NOTANI 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: 11768732Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.Type: GrantFiled: November 19, 2021Date of Patent: September 26, 2023Assignee: KIOXIA CORPORATIONInventors: Yuta Kumano, Hironori Uchikawa, Kosuke Morinaga, Naoaki Kokubun, Masahiro Kiyooka, Yoshiki Notani, Kenji Sakurada, Daiki Watanabe
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Publication number: 20220075686Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.Type: ApplicationFiled: November 19, 2021Publication date: March 10, 2022Applicant: TOSHIBA MEMORY CORPORATIONInventors: Yuta KUMANO, Hironori UCHIKAWA, Kosuke MORINAGA, Naoaki KOKUBUN, Masahiro KIYOOKA, Yoshiki NOTANI, Kenji SAKURADA, Daiki WATANABE
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Patent number: 11210163Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.Type: GrantFiled: November 12, 2019Date of Patent: December 28, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Yuta Kumano, Hironori Uchikawa, Kosuke Morinaga, Naoaki Kokubun, Masahiro Kiyooka, Yoshiki Notani, Kenji Sakurada, Daiki Watanabe
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Publication number: 20200081770Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Applicant: Toshiba Memory CorporationInventors: Yuta Kumano, Hironori Uchikawa, Kosuke Morinaga, Naoaki Kokubun, Masahiro Kiyooka, Yoshiki Notani, Kenji Sakurada, Daiki Watanabe
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Publication number: 20190220348Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value read from the non-volatile memory to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.Type: ApplicationFiled: September 11, 2018Publication date: July 18, 2019Applicant: Toshiba Memory CorporationInventors: Naoaki KOKUBUN, Masahiro KIYOOKA, Yoshiki NOTANI, Kenji SAKURADA, Daiki WATANABE, Hironori UCHIKAWA