Abstract: A memory device is disclosed, including a memory array and a selection circuit. At least one first faulty cell and at least one second faulty cell that are in the memory array store data corresponding to, respectively, first and second fields of a floating-point number. The selection circuit identifies the at least one first faulty cell and the at least one second faulty cell based on a priority of a cell replacement operation which indicates that a priority of the at least one first faulty cell is higher than that of the at least one second faulty cell. The selection circuit further outputs a fault address of the at least one first faulty cell to a redundancy analyzer circuit for replacing the at least one first faulty cell.

Abstract: A pen stroke track updating method and system thereof for handheld touch device are provided. In the method, the user firstly touches the touch module to form a pen stroke track using his finger, whereupon a control unit matches the pen stroke track with a plurality of track paths prestored in a storage module, determines whether or not the pen stroke track matches track removal rules, or determines whether or not the pen stroke track has been overlapped, and then a partial track, or the entire pen stroke track is removed according to the result of matching or analysis. Afterward, when the finger has left the touch module, the recorded pen stroke track is designated as a stopped track, which is used as a matching condition to obtain the required track path.