Trusted platform module switching
US9122893B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2014 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Feb 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/72
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.