Patents by Inventor Guangming Lu
Guangming Lu 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: 20250060313Abstract: Disclosed are a molecular imaging method using Raman spectra and system based on machine learning cascade. The system includes a coordinate localization module, a hierarchical clustering analysis module, a Raman predictive imaging module, and a similarity analysis module. An untreated frozen tissue slice is attached to a stainless steel slide, and an adjacent slice is attached to a glass slide. The coordinate localization module can match a Raman white light image of a detection sample attached to the stainless steel slide with an immunohistochemistry (IHC) image of the adjacent slice, such that Raman spectra of a target region are accurately collected. The hierarchical clustering analysis module purifies different types of Raman spectra. A machine learning classifier is configured to build a Raman predictive imaging model. The similarity analysis module can evaluate similarity between a predicted Raman predictive image and the IHC image of the adjacent slice.Type: ApplicationFiled: March 12, 2024Publication date: February 20, 2025Applicant: Jinling Hospital, Affiliated Hospital of Medical School, Nanjing UniversityInventors: Guangming Lu, Qingqing Zhou, Meng Chen, Jingxing Guo, Qiang Xu, Liming Tang, Jianrui Li, Huiming Cai
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Patent number: 11773274Abstract: The environmental-friendly antifouling agent includes a furan oxime and/or furan oxime metal complex, which has not only good antifouling performance, low toxicity and high efficiency and environmental friendliness. The ecological toxicity of the non-target organism is less than 15% of that of metals such as copper and chromium and organic matters such as benzoxazole, and the excellent barrier property of the furan ring structure itself on small molecules such as oxygen and water vapor can also significantly improve the barrier effect of a coating on a typical corrosive factor. The antifouling agent combined with an antifouling coating system can greatly improve the corrosion resistance of the coating system. Meanwhile, such the antifouling agent is easy to synthesize, can be well compatible with self-polishing resins, corrosion type resins and the like.Type: GrantFiled: November 2, 2020Date of Patent: October 3, 2023Assignee: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCESInventors: Liping Wang, Guangming Lu, Shuan Liu, Jibin Pu
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Publication number: 20230145043Abstract: The environmental-friendly antifouling agent includes a furan oxime and/or furan oxime metal complex, which has not only good antifouling performance, low toxicity and high efficiency and environmental friendliness. The ecological toxicity of the non-target organism is less than 15% of that of metals such as copper and chromium and organic matters such as benzoxazole, and the excellent barrier property of the furan ring structure itself on small molecules such as oxygen and water vapor can also significantly improve the barrier effect of a coating on a typical corrosive factor. The antifouling agent combined with an antifouling coating system can greatly improve the corrosion resistance of the coating system. Meanwhile, such the antifouling agent is easy to synthesize, can be well compatible with self-polishing resins, corrosion type resins and the like.Type: ApplicationFiled: November 2, 2020Publication date: May 11, 2023Applicant: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCESInventors: Liping WANG, Guangming LU, Shuan LIU, Jibin PU
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Patent number: 11630722Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: October 15, 2021Date of Patent: April 18, 2023Assignee: Western Digital Technologies, Inc.Inventors: Guangming Lu, Kent D. Anderson, Anantha Raman Krishnan, Shafa Dahandeh
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Publication number: 20220035697Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Inventors: Guangming LU, Kent D. ANDERSON, Anantha Raman KRISHNAN, Shafa DAHANDEH
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Patent number: 11175983Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: March 18, 2020Date of Patent: November 16, 2021Assignee: Western Digital Technologies, Inc.Inventors: Guangming Lu, Kent D. Anderson, Anantha Raman Krishnan, Shafa Dahandeh
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Patent number: 11074125Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. 0-to-1 and 1-to-0 bit flip count data provided by multiple reads of reference memory locations can be used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: December 16, 2019Date of Patent: July 27, 2021Assignee: Western Digital Technologies, Inc.Inventor: Guangming Lu
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Patent number: 10795765Abstract: A system and method for long term data retention in a flash memory. In some embodiments, the method includes transitioning the flash memory to a long term data retention state by re-storing first encoded data, the first encoded data being initially stored in the flash memory at a first code rate. The re-storing may include determining a second code rate, lower than the first code rate; reading the first encoded data from the flash memory; decoding the first encoded data at the first code rate to obtain first decoded data; encoding the first decoded data at the second code rate to form second encoded data; and storing the second encoded data in the flash memory.Type: GrantFiled: October 3, 2019Date of Patent: October 6, 2020Assignee: NGD SYSTEMS, INC.Inventor: Guangming Lu
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Publication number: 20200218596Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Guangming LU, Kent D. ANDERSON, Anantha Raman KRISHNAN, Shafa DAHANDEH
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Patent number: 10635524Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: August 24, 2018Date of Patent: April 28, 2020Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: Guangming Lu, Kent D. Anderson, Anantha Raman Krishnan, Shafa Dahandeh
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Publication number: 20200117536Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. 0-to-1 and 1-to-0 bit flip count data provided by multiple reads of reference memory locations can be used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Inventor: GUANGMING LU
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Publication number: 20200034233Abstract: A system and method for long term data retention in a flash memory. In some embodiments, the method includes transitioning the flash memory to a long term data retention state by re-storing first encoded data, the first encoded data being initially stored in the flash memory at a first code rate. The re-storing may include determining a second code rate, lower than the first code rate; reading the first encoded data from the flash memory; decoding the first encoded data at the first code rate to obtain first decoded data; encoding the first decoded data at the second code rate to form second encoded data; and storing the second encoded data in the flash memory.Type: ApplicationFiled: October 3, 2019Publication date: January 30, 2020Inventor: Guangming Lu
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Patent number: 10545819Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. 0-to-1 and 1-to-0 bit flip count data provided by multiple reads of reference memory locations can be used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: December 29, 2014Date of Patent: January 28, 2020Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventor: Guangming Lu
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Publication number: 20200012561Abstract: A system and method for adaptive multiple read of NAND flash memory. A solid state drive may employ adaptive multiple-read to perform enhanced performance error correction using soft decisions without a performance penalty that otherwise might result from performing unnecessary reads. The soft decision error correcting algorithm may employ lookup tables containing log likelihood ratios. The method may include performing one or more read operations to obtain one or more raw data words for a code word, attempting to decode the code words using the one or more raw data words, and performing additional read operations when the decoding attempt fails. This process may be repeated until a decoding attempt succeeds.Type: ApplicationFiled: September 17, 2019Publication date: January 9, 2020Inventor: Guangming Lu
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Patent number: 10417087Abstract: A system and method for adaptive multiple read of NAND flash memory. A solid state drive may employ adaptive multiple-read to perform enhanced performance error correction using soft decisions without a performance penalty that otherwise might result from performing unnecessary reads. The soft decision error correcting algorithm may employ lookup tables containing log likelihood ratios. The method may include performing one or more read operations to obtain one or more raw data words for a code word, attempting to decode the code words using the one or more raw data words, and performing additional read operations when the decoding attempt fails. This process may be repeated until a decoding attempt succeeds.Type: GrantFiled: October 2, 2017Date of Patent: September 17, 2019Assignee: NGD Systems, Inc.Inventor: Guangming Lu
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Patent number: 10268420Abstract: A system and method for providing consistent performance in a storage device, such as a solid state drive. A threshold value for command execution time for a command in a category of command (e.g., a read command or a write command) and a command size, is stored in the storage device. When a host command in the category (e.g., a read command) and corresponding size is received, the storage device executes the command, and if it completes execution of the command in a time that is less than the threshold value, the solid state drive waits until an amount of time equal to the threshold value has elapsed before sending the command completion.Type: GrantFiled: April 10, 2018Date of Patent: April 23, 2019Assignee: NGD Systems, Inc.Inventors: Joao Alcantara, Ricardo Cassia, Kamyar Souri, Vladimir Alves, Guangming Lu
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Patent number: 10216572Abstract: A system and method for generating lookup tables for use in an adaptive multiple-read system for reading flash memory. Successive different attempts are made to decode previously stored data using error correction codes, the attempts differing, for example, with respect to the combination of raw data words used for each attempt, each raw data word having been obtained by reading a code word of data using a different word line voltage. When a decoding attempt succeeds, log likelihood ratios are calculated from counts of flipped bits, i.e., bits in the raw data read from the memory having a different value than the corresponding bits in the decoded data.Type: GrantFiled: August 5, 2016Date of Patent: February 26, 2019Assignee: NGD Systems, Inc.Inventor: Guangming Lu
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Patent number: 10216574Abstract: A data storage system configured to adaptively code data is disclosed. In one embodiment, a data storage system controller determines a common memory page size, such as an E-page size, for a non-volatile memory array. Based on the common memory page size, the controller selects a low-density parity-check (LDPC) code word length from a plurality of pre-defined LDPC code word lengths. The controller determines LDPC coding parameters for coding data written to or read from the memory array based on the selected LDPC code word length. By using the plurality of pre-defined LDPC code word lengths, the data storage system can support multiple non-volatile memory page formats, including memory page formats in which the common memory page size does not equal any LDPC code word length of the plurality of pre-defined LDPC code word lengths. Flexibility and efficiency of data coding can thereby be achieved.Type: GrantFiled: December 15, 2014Date of Patent: February 26, 2019Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventor: Guangming Lu
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Patent number: 10067844Abstract: A method of restoring user data in a modular solid-state drive including memory channels coupled to respective ones of non-volatile memory cards, the method including: upon physical replacement of a defunct memory card of the non-volatile memory cards with a new non-volatile memory card, and power on of the modular solid-state drive, retrieving a firmware segment and a system segment of the modular solid-state drive from unaffected memory channels of the memory channels not coupled to the new non-volatile memory card; rebuilding a firmware of the modular solid-state drive based on the retrieved firmware segment; rebuilding a data mapping table associated with the non-volatile memory cards based on the retrieved system segment; and restoring full integrity of the user data originally stored on the non-volatile memory cards based on the rebuilt data mapping table and data from the unaffected memory channels.Type: GrantFiled: June 27, 2016Date of Patent: September 4, 2018Assignee: NGD Systems, Inc.Inventor: Guangming Lu
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Patent number: 10061640Abstract: An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.Type: GrantFiled: March 12, 2013Date of Patent: August 28, 2018Assignee: Western Digital Technologies, Inc.Inventors: Guangming Lu, Kent D. Anderson, Anantha Raman Krishnan, Shafa Dahandeh