Hyperstone/Swissbit Assigned Patent

Hyperstone GmbH, Constance, Germany, a Swissbit AG company, has been assigned a patent (12354688) developed by Thiers; Johann-Philipp, Bailon; Daniel Nicolas, Freudenberger; Juergen, and Lu; Jianjie, Constance, Germany, for “method and system for read reference voltage calibration for non-volatile memories.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for read reference voltage calibration of a non-volatile memory, NVM, such as flash memory, particularly of the NAND type, comprises: Reading from the NVM predetermined reference data stored therein and being encoded with an error correction code, ECC, wherein the reading is performed when a read reference voltage of the NVM, which is used as a reference voltage, such as a threshold voltage, for the reading, is set at a defined voltage level; decoding the read data and observing a number of bit errors, e.g., in a codeword, of the read data in relation to the reference data; and defining a new voltage level of the read reference voltage for a subsequent reading of data from the NVM based on the observed number of bit errors and setting the read reference voltage to the defined new voltage level.”

The patent application was filed on 2022-09-07 (17/939718).