Patent application number | Description | Published |
20110090734 | METHODS AND APPARATUS FOR STORING DATA IN A MULTI-LEVEL CELL FLASH MEMORY DEVICE WITH CROSS-PAGE SECTORS, MULTI-PAGE CODING AND PER-PAGE CODING - Methods and apparatus are provided for storing data in a multi-level cell flash memory device with cross-page sectors, multi-page coding and per-page coding. A single sector can be stored across a plurality of pages in the flash memory device. Per-page control is provided of the number of sectors in each page, as well the code and/or code rate used for encoding and decoding a given page, and the decoder or decoding algorithm used for decoding a given page. Multi-page and wordline level access schemes are also provided. | 04-21-2011 |
20110216586 | Methods And Apparatus For Intercell Interference Mitigation Using Modulation Coding - Methods and apparatus are provided for intercell interference mitigation using modulation coding. During programming of a flash memory, a modulation encoding is performed that selects one or more levels for programming the flash memory such that a reduced number of cells in the flash memory are programmed with a value that violates one or more predefined criteria. During a reading of a flash memory, a modulation decoding is performed that assigns one or more levels to cells in the flash memory such that a reduced number of cells in the flash memory are read with a value that violates one or more predefined criteria. The predefined criteria can be based, for example, on one or more of an amount of disturbance caused by the programmed cell; a voltage shift of a programmed cell: a voltage stored by a programmed cell; an amount of change in current through a programmed cell; and an amount of current through a programmed cell. | 09-08-2011 |
20110225350 | Methods and Apparatus for Soft Data Generation for Memory Devices Based Using Reference Cells - Methods and apparatus are provided for soft data generation for memory devices using reference cells. At least one soft data value is generated in a memory device by writing a known data to one or more reference cells; reading one or more of the reference cells; obtaining a read statistic based on the read one or more reference cells; and obtaining the at least one soft data value based on the obtained read statistic. The read statistics can optionally be obtained for one or more desired locations of a memory array; or for a given pattern, PATT, in one or more aggressor cells. The read statistic can optionally comprise asymmetric statistics obtained for a plurality of possible values. | 09-15-2011 |
20110239089 | Methods and Apparatus for Soft Data Generation for Memory Devices Using Decoder Performance Feedback - Methods and apparatus for soft data generation for memory devices using decoder performance feedback. At least one soft data value is generated in a memory device, by obtaining performance feedback from a decoder; obtaining an error statistic based on the performance feedback; and generating the at least one soft data value based on the obtained error statistic. The performance feedback comprises one or more of decoded bits, a number of erroneous bits based on data decoded by the decoder and a number of unsatisfied parity checks. | 09-29-2011 |
20120170678 | METHODS AND APPARATUS FOR TRELLIS-BASED MODULATION ENCODING - Methods and apparatus are provided for trellis-based modulation encoding. A signal is modulation encoded by encoding one or more blocks of the signal using one or more corresponding edges in a trellis, wherein each edge in the trellis has a corresponding bit pattern; selecting a winning path through the trellis based on at least one transition-based run-length constraint; and generating an encoded sequence using edges associated with the winning path. Exemplary trellis pruning techniques are also provided. The winning path through the trellis is selected by minimizing one or more modulation metrics. | 07-05-2012 |
20130054664 | Systems and Methods for Anti-Causal Noise Predictive Filtering in a Data Channel - Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes a data detector circuit. The data detector circuit includes an anti-causal noise predictive filter circuit and a data detection circuit. In some cases, the anti-causal noise predictive filter circuit is operable to apply noise predictive filtering to a detector input to yield a filtered output, and the data detection circuit is operable to apply a data detection algorithm to the filtered output derived from the anti-causal noise predictive filter circuit. | 02-28-2013 |
20130111294 | Systems and Methods for Late Stage Precoding | 05-02-2013 |
20130111306 | Detector with Soft Pruning | 05-02-2013 |
20130124950 | Low Latency Enumeration Endec - Various embodiments of the present invention provide apparatuses and methods for encoding and decoding data. | 05-16-2013 |
20140082450 | Systems and Methods for Efficient Transfer in Iterative Processing - Embodiments of the present inventions are related to systems and methods for data processing, and more particularly to systems and methods for format efficient data processing. | 03-20-2014 |
20140126287 | Methods And Apparatus For Storing Data In A Multi-Level Cell Flash Memory Device With Cross-Page Sectors, Multi-Page Coding And Per-Page Coding - Methods and apparatus are provided for storing data in a multi-level cell flash memory device with cross-page sectors, multi-page coding and per-page coding. A single sector can be stored across a plurality of pages in the flash memory device. Per-page control is provided of the number of sectors in each page, as well as the code and/or code rate used for encoding and decoding a given page, and the decoder or decoding algorithm used for decoding a given page. Multi-page and wordline level access schemes are also provided. | 05-08-2014 |
20140126288 | Methods And Apparatus For Storing Data In A Multi-Level Cell Flash Memory Device With Cross-Page Sectors, Multi-Page Coding And Per-Page Coding - Methods and apparatus are provided for storing data in a multi-level cell flash memory device with cross-page sectors, multi-page coding and per-page coding. A single sector can be stored across a plurality of pages in the flash memory device. Per-page control is provided of the number of sectors in each page, as well as the code and/or code rate used for encoding and decoding a given page, and the decoder or decoding algorithm used for decoding a given page. Multi-page and wordline level access schemes are also provided. | 05-08-2014 |
20140126289 | Methods And Apparatus For Storing Data In A Multi-Level Cell Flash Memory Device With Cross-Page Sectors, Multi-Page Coding And Per-Page Coding - Methods and apparatus are provided for storing data in a multi-level cell flash memory device with cross-page sectors, multi-page coding and per-page coding. A single sector can be stored across a plurality of pages in the flash memory device. Per-page control is provided of the number of sectors in each page, as well as the code and/or code rate used for encoding and decoding a given page, and the decoder or decoding algorithm used for decoding a given page. Multi-page and wordline level access schemes are also provided. | 05-08-2014 |
20140143289 | Constrained System Endec - Various embodiments of the present invention provide apparatuses and methods for encoding and decoding data for constrained systems with reduced or eliminated need for hardware and time intensive arithmetic operations such as multiplication and division. | 05-22-2014 |
20140201585 | State-Split Based Endec - Various embodiments of the present invention provide systems and methods for encoding and decoding data for constrained systems with state-split based encoders and decoders. | 07-17-2014 |