Cnex Labs, Inc.

Xiaojie Zhang

Yiren Huang

Alan Armstrong

Bing Fan

Yi Liu

Pengfei Huang

A computing system includes: a control circuit for determining a user data, generating a base set including a base protection data based on encoding the user data, calculating an extra protection data based on encoding the base set; and a storage circuit for storing the extra protection data () corresponding to the base set. The computing system can further include: an storage circuit for providing a received codeword corresponding to a user data and a base protection data, providing an extra protection data corresponding to the received codeword; and a control circuit for calculating a base syndrome from the received codeword, calculating a further syndrome from the extra protection data, and decoding the received codeword to recover the user data, the base protection data, or a combination thereof using the base syndrome and the further syndrome.

Computing system with shift adjustable coding mechanism and method of operation thereof

A storage system includes: a control processor, configured to: read user data, generate a bit flip array from the user data including limiting a threshold offset range, and select an optimal read threshold set from the bit flip array; and a non-volatile memory array, coupled to the control processor, configured to store the user data; and wherein the control processor is further configured read a sector N with the optimal read threshold set for enhancing performance of the non-volatile memory array.

Storage system with read threshold mechanism and method of operation thereof

A computing system includes: a data block including a data; a storage engine, coupled to the data block, configured to process data, as hard information or soft information, through channels including a failed channel and a remaining channel, calculate an aggregated output from a hard decision from the remaining channel, calculate a selected magnitude from a magnitude from the remaining channel with an error detected, calculate an extrinsic soft information based on the aggregated output and the selected magnitude, and decode the failed channel with a scaled soft metric based on the extrinsic soft information.

Computing system with data protection mechanism with soft information and method of operation thereof

A computing system includes: storage devices configured to read data sectors; and a data correction engine, coupled to the storage devices, configured to: detect an error data sector among the data sectors, generate soft information from the error data sector, apply a soft bit flipping logic to the error data sector to produce a transformed data sector, and generate a corrected data sector from the transformed data sector.

Computing system with data protection enhancement mechanism and method of operation thereof

A computing system includes an array of storage devices configured to store storage data and check data; and a storage engine, coupled to the array of storage devices, configured to: access the storage data, detect an erasure storage data, an erasure check data, or a combination thereof when the storage data is not accessible from the array of storage devices, and recover the storage data from the erasure storage data, the erasure check data, or the combination thereof by applying at least one of a block of check data including a slope from the check data.

Computing system with data recovery mechanism and method of operation thereof

A computing system includes: an interface circuit configured to provide access to a data block including an arrangement of multiple individual data; and a processing circuit, coupled to the interface circuit, configured to generate a non-orthogonal protection data corresponding to instances of the individual data along a non-orthogonal direction within the data block for correcting the one or more of the corresponding instances of the individual data.

Computing system with non-orthogonal data protection mechanism and method of operation thereof

A computing system includes an array of storage devices configured to provide access to storage data and check data corresponding to a data block length; and a storage engine, coupled to the array of storage devices, configured to: detect one more erroneous data, one more erroneous check data, or a combination thereof for representing the storage data, the check data, or a combination thereof inaccessible or failing a status check process after initial storage thereof, determine a prime shift factor for representing a smallest prime number not less than a block unit-quantity, wherein the block unit-quantity is for representing a quantity of shift units within the data block length, and iteratively generate a target recovery set based on a circular-shift mechanism utilizing the prime shift factor for recovering the one more erroneous data, the one more erroneous check data, or a combination thereof.

Computing system with circular-shift recovery mechanism and method of operation thereof

A storage system includes: a control processor unit, configured to: initiate a read of a raw data page, having correctable errors, calculate a raw bit error rate (RBER) (EQ1) by correcting the correctable errors to become corrected data and comparing raw data with the corrected data, and calculate a correction model characterization based on the RBER (EQ1); and a non-volatile storage array, coupled to the control processor unit, configured to store a processed data page in a physical block with the raw data page; and wherein the control processor unit is further configured to apply the correction model characterization to the raw data page in the physical block.

Storage system with data reliability mechanism and method of operation thereof

A computing system includes: a control circuit configured to: determine a user data, generate a base set including a base protection data based on encoding the user data according to a coding mechanism, generate an extra protection data based on encoding the user data differently from the base set according to the coding mechanism; and a storage circuit configured to store the extra protection data corresponding to the base set. The computing system can further include: an storage circuit configured to: provide a received codeword corresponding to a user data and a base protection data, provide an extra protection data corresponding to the received codeword; a control circuit configured to: decode the received codeword according to a coding mechanism, and further decode the received codeword to recover the user data based on decoding differently from decoding the base set and using the extra protection data according to the coding mechanism.

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Saratoga, CA, United States of America

Xiaojie Zhang