Dual usage smart card of CPU and logical encryption and its data synchronization method

US8255706B2 · kind B2 · utility

Assignee

• Beijing Watch Data System Co., Ltd.

Inventors

• Dacai Chen · Beijing, CN
• Daxing Xu · Beijing, CN
• Tongxin Qi · Beijing, CN

Key dates

• Filing date: Dec 7, 2007
• Grant date: Aug 28, 2012
• Expiry date: Apr 5, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F12/1416
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A dual usage smart card of CPU and logical encryption and its data synchronization method. Said method comprises that a CPU command processing module controls an accessing control module for the logical encryption storage region to read the data in the logical encryption storage region to a data format conversion module; said data format conversion module transmits the data to the CPU control storage region; the CPU command processing module controls the CPU control storage region again to transmit the data of CPU card to the accessing control module for the logical encryption storage region through the data format conversion module; and said accessing control module for the logical encryption storage region writes the data of CPU card into the logical encryption storage region.