US Patent 10192626 Responding to power loss

Methods of operating memory, and apparatus configured to perform similar methods, include obtaining information indicative of a data value stored in a particular memory cell of the memory, programming additional data to the particular memory cell, determining if a power loss to the memory is indicated while programming the additional data to the particular memory cell, and, if a power loss to the memory is indicated, selectively programming one memory cell of a pair of gate-connected non-volatile memory cells responsive to the information indicative of the data value stored in the particular memory cell. A resulting combination of threshold voltages of the one memory cell of the pair of gate-connected non-volatile memory cells and of the other memory cell of the pair of gate-connected non-volatile memory cells is representative of the information indicative of the data value stored in the particular memory cell.