Abstract: Embodiments are related to systems and methods for data storage, and more particularly to systems and methods for storing and accessing data from a flash memory.

Abstract: Embodiments of the present inventions are related to systems and methods for data processing, and more particularly to systems and methods for recovering data where synchronization information is not detected.

Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for multiple codeword processing in a data processing system.

Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing to identify a defect on a medium.

Abstract: An apparatus for processing data includes a data processing circuit configured to process user data, wherein the data processing circuit comprises a number of sub-circuits, a number of clock gates each configured to control a clock signal to one of the sub-circuits, a gating control circuit configured to control the clock gates to apply the clock signal to each of the sub-circuits in staged fashion during a ramped power up operation, and a dummy data source configured to provide dummy data to the data processing circuit during the ramped power up operation of the data processing circuit.

Abstract: A read channel module including an input, a location module and a generation module. The input is configured to receive a read-back signal from a rotating storage medium. The location module is configured to determine a location to insert a first imitation defect within the read-back signal. The first imitation defect imitates a first defect. The generation module is configured to (i) selectively generate the first imitation defect, and (ii) insert the first imitation defect in the read-back signal at the determined location.

Abstract: The present invention is related to systems and methods for storing and recovering data from a distributed storage system.

Abstract: Embodiments of the present inventions are related to systems and methods for data processing, and more particularly to systems and methods for reducing inter-track interference in relation to processing data retrieved from a storage medium.

Abstract: Embodiments of the present inventions are related to systems and methods for data processing, and more particularly to systems and methods for reducing inter-track interference in relation to processing data retrieved from a storage medium.

Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for processing data accessed from a flash memory.

Abstract: A non-binary low density parity check decoder includes a check node processor configured to generate check node to variable node messages based on variable node to check node messages, and a variable node processor configured to generate the variable node to check node messages and to calculate perceived values of variable nodes based on the check node to variable node messages. The variable node to check node messages and the check node to variable node messages are in a normalized format. The variable node processor includes an adder configured to add likelihood values in a non-normalized format, wherein only one of two inputs to the adder are converted from the normalized format to the non-normalized format in a zero-padding circuit.

Abstract: The present invention is related to systems and methods for data storage compression. As an example, a system is discussed that includes a semiconductor device having a host interface, a compression circuit operable to compress a write data set received via the host interface, and a write channel circuit operable to apply an encoding algorithm to the compressed data set to yield an encoded data set.

Abstract: The present invention is related to systems and methods for branch metric calculation based on multiple data streams in a data processing circuit.

Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream. As an example, a data processing system is discussed that includes a sync mark detection circuit and a sync quality output circuit. The sync mark detection circuit is operable to identify a predefined pattern in a received data set, where identification of the predefined pattern results is asserting a sync found output, and where a preamble pattern precedes the predefined pattern in the received data set. The sync quality output circuit is operable to provide a sync mark quality metric indicating a similarity between the preamble pattern and the received data set within a region preceding the predefined pattern.

Abstract: A data encoder includes an encoding logic circuit configured to encode input data to apply run length limiting using state splitting of a code trellis, and a lookup table configured to apply a block-enumerable map on an un-split version of the code trellis, wherein entries in the lookup table are compressed.

Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for error correction in a data processing system.

Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for combining recovered portions of a data set. In one particular case, a system is disclosed that includes a stitching circuit and a data recovery circuit. The stitching circuit is operable to: receive a data set including at least a first fragment and a second fragment; replicate data from at least one of the first fragment and the second fragment as stitching values; and aggregate the first fragment with the second fragment with the stitching values between the first fragment and the second fragment to yield a combined data set. The data recovery circuit is operable to process the combined data set to yield an original data set.

Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing to identify a defect on a medium.

Abstract: A data processing system includes a data input configured to receive input blocks of data, a memory configured to store the input blocks of data, a data processor configured to process the input blocks of data and to yield corresponding processed output blocks of data and a scheduler configured to cause the data processor to output the output blocks of data after a processing criterion has been met in the data processor. The memory is configured to retain the input blocks of data for reprocessing after the corresponding processed output blocks of data have been output from the data processor. The scheduler includes a control input configured to receive reprocessing requests for the retained input blocks of data. The scheduler is configured to initiate a reprocessing operation in the data processor for the retained blocks of data when the reprocessing requests are received on the control input.

Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for data encoding and decoding.