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.

Date of Patent:
Sep. 01, 2015

Filed:

Feb. 24, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Shiva R. Dasari, Austin, TX (US);

Raghuswamyreddy Gundam, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); G06F 21/71 (2013.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/71 (2013.01); G06F 21/57 (2013.01);
Abstract

A computer system comprises a Trusted Platform Module System (TPMS). The TPMS comprises a first Trusted Platform Module (TPM) and a second TPM, which comports with a different TPM specification than that followed by the first TPM. A physical presence input device receives a local physical change signal that proves a local physical presence of a user at the computer system. A toggle input device, which requires the local physical change signal, causes the state being output from the GPIO pin on the first TPM to switch from a first state to a second state. This change of state causes a TPM switch to selectively decouple the first TPM from a central processing unit and to couple the second TPM to the central processing unit.


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