The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
Jan. 20, 2000
Jun Tanaka, Zama, JP;
Masahiko Nomura, Sagamihara, JP;
Hideto Horikoshi, Sagamihara, JP;
Hideyuki Usui, Chigasaki, JP;
Seita Horikoshi, Zama, JP;
Fumio Tamura, Yamato, JP;
Jun Tanaka, Zama, JP;
Masahiko Nomura, Sagamihara, JP;
Hideto Horikoshi, Sagamihara, JP;
Hideyuki Usui, Chigasaki, JP;
Seita Horikoshi, Zama, JP;
Fumio Tamura, Yamato, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A technique for prohibiting access to a computer having a security function when a security device is illegally removed from the computer. The security device is a hardware component that constitutes a part of a security function for a computer. When the security device is illegally removed from the computer, access to the computer is prohibited. Data indicating that the security device is attached to the computer are stored in a nonvolatile memory. Then, when a specific event, such as a power-ON event, is used as a trigger, the procedure for prohibiting the access to the computer is initiated. Following this, based on the data stored in the memory, it is detected that the security device was once attached to the computer and that it has now been removed. If currently the security device is not attached to the computer, although it was attached before, the access to the computer is prohibited.