Protecting circuit for basic input output system chip

US8930600B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8930600-B2
Application numberUS-201213675127-A
CountryUS
Kind codeB2
Filing dateNov 13, 2012
Priority dateDec 29, 2011
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A protecting circuit for a basic input output system (BIOS) chip of a computer includes a platform controller hub (PCH), an inverting circuit connected to the PCH, a BIOS socket to connect the BIOS chip, and a controlling circuit connected between the inverting circuit and the BIOS socket. The PCH outputs a first signal or a second signal, and a third signal. The inverting circuit outputs an inverted signal with a level contrary to the first or second signal. The controlling circuit receives the first or second signal and the inverted signal, to output a processing signal to the BIOS socket, thereby controlling write-protection states of the BIOS chip.

First claim

Opening claim text (preview).

What is claimed is: 1. A protecting circuit for a basic input output system (BIOS) chip of a computer, comprising: a platform controller hub (PCH) comprising a first pin and a second pin, wherein the first pin outputs a low level first signal, and the second pin outputs a high level second signal, in response to the computer being powered off; the first pin outputs a high level third signal, and the second pin outputs a high level second signal, in response to the computer being i…

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What does patent US8930600B2 cover?
A protecting circuit for a basic input output system (BIOS) chip of a computer includes a platform controller hub (PCH), an inverting circuit connected to the PCH, a BIOS socket to connect the BIOS chip, and a controlling circuit connected between the inverting circuit and the BIOS socket. The PCH outputs a first signal or a second signal, and a third signal. The inverting circuit outputs an in…
Who is the assignee on this patent?
Chen guo-yi, Tian Bo, Gao Yang, and 2 more
What technology area does this patent fall under?
Primary CPC classification G06F9/4403. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 06 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).