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US 7,254,701 B2Granted
Method and device for safeguarding a digital process device
AssigneeWinbond Electronics Corp.
InventorVictor Lu
Life of this patent
Estimating the term…
Abstract
A method for safeguarding a digital process device having a data storage slot comprises the steps of: providing a drawable storage device for storing a start-up code of the digital process device; and processing the starting code for executing a start-up operation of the digital process device when the drawable storage device is inserted into the data storage slot of the digital process device.
Claims14
A method for safeguarding a digital process device, said method comprising steps of:
- inserting a memory card device into a data storage slot of said digital process device, wherein said data storage slot has an address, said memory card stores a start-up code of said digital process device, and said start up code includes a correct version of BIOS;
- responsive to said memory card device being inserted, generating a memory card inserted signal;
- proceeding to a start-up operation of said digital process device, said start-up operation including a BIOS check for detecting whether the BIOS is defective;
- responsive to the BIOS being not defective, executing a remaining portion of said start-up operation;
- and
- responsive to the BIOS being defective, generating a BIOS detection error signal, automatically pointing to the address of said data storage slot, and thus executing said start-up code in said memory card device according to said memory card inserted signal and said BIOS detection error signal.
3 more elements
A device for safeguarding a digital process device comprising:
- a central processing unit;
- an onboard BIOS ROM for executing a normal start-up operation;
- a storage device independent from said digital process device, said storage device having a start-up code of said digital process device, wherein said start-up code includes a correct version of BIOS for starting up said digital process device and recovering said onboard BIOS ROM when said onboard BIOS ROM is defective;
- an interface electrically connected to said digital process device and said storage device, said digital process device executing a start-up operation via said start-up code stored on said storage device through said interface;
- and
- a control unit for causing said onboard BIOS ROM to be inactive when said storage device has been inserted into said interface and a defect of onboard BIOS ROM is found during a BIOS check of said normal start-up procedure;
- whereby said central processing unit will automatically point to said storage device, and thus said start-up code will be executed after said onboard BIOS ROM is disabled.
4 more elements
Dependencies are inferred from the claim text.