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Method and apparatus for protecting a password of a computer having a non-volatile memory
US8990926B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990926-B2 |
| Application number | US-201213709938-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2012 |
| Priority date | Jan 15, 2012 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
Official abstract text for this publication.
A method for protecting a password of a computer having a non-volatile memory is disclosed. A password is stored in a non-volatile memory of a computer. The computer is then transitioned to a power saving state. In response to a detection of an unauthorized access to the non-volatile memory during the power saving state transition, a password input is requested from a user. The computer returns to a power-on state from the power saving state when there is a success in authentication of the input password.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: storing a password in a non-volatile memory of a computer; transitioning said computer to a power saving state; determining whether a transition source is in a S 3 state or in a S 34 state in response to detecting an unauthorized access when said non-volatile memory is electrically disconnected from said computer, wherein said S 3 state is a suspend state in which an operating system of the computer saves system contexts to a vola…
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Classifications
- G06F21/572Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06F21/45Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8990926B2 cover?
- A method for protecting a password of a computer having a non-volatile memory is disclosed. A password is stored in a non-volatile memory of a computer. The computer is then transitioned to a power saving state. In response to a detection of an unauthorized access to the non-volatile memory during the power saving state transition, a password input is requested from a user. The computer returns…
- Who is the assignee on this patent?
- Lenovo Singapore Pte Ltd, Lenovo Singapore Pte Ltd
- What technology area does this patent fall under?
- Primary CPC classification G06F21/572. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).