Apple Inc.

Tel Aviv University

Or Ordentlich

Naftali Sommer

Ofir Shalvi

Micha Anholt

Dotan Sokolov

Barak Rotbard

Shai Winter

Uri Erez

A method for data storage includes encoding each of multiple data items individually using a first Error Correction Code (ECC) to produce respective encoded data items. The encoded data items are stored in a memory. The multiple data items are encoded jointly using a second ECC, so as to produce a code word of the second ECC, and only a part of the code word is stored in the memory. The stored encoded data items are recalled from the memory and the first ECC is decoded in order to reconstruct the data items. Upon a failure to reconstruct a given data item from a respective given encoded data item by decoding the first ECC, the given data item is reconstructed based on the part of the code word of the second ECC and on the encoded data items other than the given encoded data item.

Error correction coding over multiple memory pages

There is provided a transmission system and method of operating thereof. The method comprises: dividing a data sequence to be transmitted into a plurality of data blocks; encoding one or more data blocks with one or more linear systematic cyclic codes thus giving rise to encoded data blocks; transmitting said encoded data blocks over an ISI transmission channel; upon receiving, applying a linear integer-forcing (IF) equalization to the received data blocks; processing the output of the IF equalization thereby detecting for each encoded data block a valid codeword with maximal likelihood of decoding; and reconstructing the data blocks using the respective detected valid codewords.

Transmission system with ISI channel and method of operating thereof

A method for data storage in a memory that includes multiple analog memory cells fabricated using respective physical media, includes identifying a group of the memory cells whose physical media have deteriorated over time below a given storage quality level. A rejuvenation process, which causes the physical media of the memory cells in the group to meet the given storage quality level, is applied to the identified group. Data is stored in the rejuvenated group of the memory cells.

Read threshold setting based on temperature integral

Rejuvenation of analog memory cells

Growing community of inventors

Tel Aviv, Israel

Or Ordentlich