Abstract: A method for data storage includes storing data in a memory that includes one or more memory units, each memory unit including memory blocks. The stored data is compacted by copying at least a portion of the data from a first memory block to a second memory block, and subsequently erasing the first memory block. Upon detecting a failure in the second memory block after copying the portion of the data and before erasure of the first memory block, the portion of the data is recovered by reading the portion from the first memory block.

Abstract: A method includes, in a non-volatile memory that includes multiple memory blocks, defining a redundancy zone that includes at least an old parity block, a new parity block and multiple active blocks of which one block is defined as an open block. Data is stored in the redundancy zone and the stored data is protected, such that new input data is stored in the open block, redundancy information for the active blocks including the open block is stored in the new parity block, and the redundancy information for the active blocks excluding the open block is stored in the old parity block. Upon filling the open block and the new parity block, an alternative block is assigned to serve as the open block and the new parity block is assigned to serve as the old parity block.

Abstract: A method for data storage includes storing data in a memory that includes one or more memory units, each memory unit including memory blocks. The stored data is compacted by copying at least a portion of the data from a first memory block to a second memory block, and subsequently erasing the first memory block. Upon detecting a failure in the second memory block after copying the portion of the data and before erasure of the first memory block, the portion of the data is recovered by reading the portion from the first memory block.

Abstract: A memory device includes a plurality of memory cells, a token input interface, a token output interface and control circuitry. The control circuitry is configured to accept a storage command, to condition execution of at least a part of the storage command on a presence of a token pulse on the token input interface, to execute the storage command, including the conditioned part, in the memory cells upon reception of the token pulse on the token input interface, and to reproduce the token pulse on the token output interface upon completion of the execution.

Abstract: A method for data storage includes encoding input data with an Error Correction Code (ECC), to produce encoded data. The encoded data is formatted in a super-frame consisting of a given number of burst sequences arranged in parallel, each burst sequence consisting of one or more bursts of multiple bytes of the encoded data. The burst sequences of the super-frame are stored in respective memory devices over a single data bus having a bus width, in bytes, that is equal to the given number.

Abstract: A memory device includes a plurality of memory cells, a token input interface, a token output interface and control circuitry. The control circuitry is configured to accept a storage command, to condition execution of at least a part of the storage command on a presence of a token pulse on the token input interface, to execute the storage command, including the conditioned part, in the memory cells upon reception of the token pulse on the token input interface, and to reproduce the token pulse on the token output interface upon completion of the execution.

Abstract: A method for data storage includes, in a memory that includes at least N memory units, each memory unit including memory blocks, defining superblocks, each superblock including a respective set of N of the memory blocks that are allocated respectively in N different ones of the memory units, such that compaction of all the memory blocks in a given superblock is performed without any intervening programming operation in the given superblock. Data is stored in the memory by computing redundancy information for a selected portion of the data, and storing the selected portion and the redundancy information in the N memory blocks of a selected superblock.

Abstract: Embodiments of an AC coupled bus charging system are disclosed that may allow for different charging currents. The charging system may include a charging circuit and a control circuit. The charging circuit may be operable to controllably select different charging currents dependent upon the output of the control circuit.

Abstract: A method for data storage includes encoding input data with an Error Correction Code (ECC), to produce encoded data. The encoded data is formatted in a super-frame consisting of a given number of burst sequences arranged in parallel, each burst sequence consisting of one or more bursts of multiple bytes of the encoded data. The burst sequences of the super-frame are stored in respective memory devices over a single data bus having a bus width, in bytes, that is equal to the given number.

Abstract: A method for data storage includes encoding input data with an Error Correction Code (ECC), to produce encoded data. The encoded data is formatted in a super-frame consisting of a given number of burst sequences arranged in parallel, each burst sequence consisting of one or more bursts of multiple bytes of the encoded data. The burst sequences of the super-frame are stored in respective memory devices over a single data bus having a bus width, in bytes, that is equal to the given number.

Abstract: A method for data storage includes storing two or more data items in a non-volatile memory. Redundancy information is calculated over the data items, and the redundancy information is stored in a volatile memory. Upon a failure to retrieve a data item from the non-volatile memory, the data item is reconstructed from remaining data items stored in the non-volatile memory and from the redundancy information stored in the volatile memory.