Portable electronic equipment

Abstract

Abstract PURPOSE:To rapidly judge no writing state of data, and to rapidly perform an erasing operation in an area, by providing the area which stores specific information capable of judging whether the data is written or not. CONSTITUTION:The area which stores the specific information whether the data is written in the area on not is provided, and confirmation for the no writing state of the data in the area is performed by judging whether the spe cific information is initialized or not. Also, the erasing operation of the data in the area is performed only by initializing the specific information. In other words, each area is divided into a single or plural blocks, and at the forefront of the area, the area which stores the address of the final byte of the final block written at the time of writing the data in the area, is provided. In such a way, it is possible to rapidly judge whether the area targeted to be accessed is the one in the no writing state or not and to rapidly perform the erasing operation of the data.

Inventors

• 👤 Yasuo Iijima
• 👤 康雄 飯島

Bibliographic Details