US Patent Issued to Sandisk Technologies on Nov. 18 for "Bypass buffer for worn out codewords" (Oregon, California, Washington Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,964, issued on Nov. 18, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Bypass buffer for worn out codewords" was invented by Lunkai Zhang (Portland, Ore.), Nathan Franklin (Belmont, Calif.), Raj Ramanujan (Federal Way, Wash.) and Martin Lueker-Boden (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bypass buffer stores codewords that have been identified as worn out codewords due to stuck-at-failure bit errors and/or other endurance failures. A controller of a data storage device monitors the number of worn out bits of a codeword stored by a memory device of the data storage device. If the number of worn out bits of t...