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Patent Searching and Data


Title:
THE APPARATUS AND METHOD THAT ACHIEVE THE SECURITY TRANSLATION OF THE CALCULATING UNIT
Document Type and Number:
WIPO Patent Application WO/2005/045684
Kind Code:
A1
Abstract:
The calculating unit of this invention may be running in a dual-operating system or in one of the two states that are entirety different from each other. To quicken the translation speed of the calculating unit between the different states, two memories may be adopted to store the running state information of the calculating unit, one is used to store the current running state information, and another is used to store the previous running state information or the next running state information that the calculating unit is coming into. By controlling the SCKE signal line, utilizing the function of hanging up the calculating unit to the memory, at the utmost one of the two memories is not in the hanging up state while the user system and the operating system are active. Not only the quick translation of the operating system is ensured, but also the security of the translation.

Inventors:
SHAO TONG (CN)
Application Number:
PCT/CN2004/001206
Publication Date:
May 19, 2005
Filing Date:
October 25, 2004
Export Citation:
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Assignee:
NANJING E SECURITY TECHNOLOGY (CN)
SHAO TONG (CN)
International Classes:
G06F12/14; G06F12/16; G06F21/74; (IPC1-7): G06F12/14
Foreign References:
CN1282916A2001-02-07
CN1241085A2000-01-12
CN1415085A2003-04-30
CN1303035A2001-07-11
Attorney, Agent or Firm:
NANJING LAW FIRM OF INTELLECTUAL PROPERTIES (Room B, 2F N0. 177 Guangzhou Roa, Nanjing Jiangsu 4, 21002, CN)
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