Memory protection device and method

A memory protection device is used for protecting a memory. The memory protection device includes a filtering unit and an encoding unit. The filtering unit searches an input data and outputs an encoding selection signal based on a bit component pattern of the input data. The encoding unit selects one or more encoding implementations among a plurality of encoding implementations based on the encoding selection signal from the filtering unit, to encode the input data. 存储器保护装置与方法，用以保护存储器。该存储器保护装置包括：过滤单元与编码单元。过滤单元搜寻输入数据，以依照该输入数据的位组成样式，输出编码选择信号。编码单元根据由该过滤单元所输出的该编码选择信号，从多种编码方式中选择针对该输入数据所要采用的或多个编码方式。