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US 7,010,679 B2Granted
System for selecting from multiple BIOS versions stored in a single memory device
AssigneeMitac Technology Corp.
InventorTsung-Ju Yang
Life of this patent
Estimating the term…
Abstract
Computer equipment using a plurality of BIOS versions. The equipment includes a selecting device, a memory device, and a CPU. The selecting device provides a selecting signal responding to the BIOS version. The memory device is coupled to the selecting device to store the BIOS version, and outputs the responding BIOS version according to the selecting signal. The CPU is coupled to the memory device to load the responding BIOS version.
Claims13
Computer equipment using a plurality of BIOS versions, comprising:
- a selecting device for providing a selecting signal responding to the BIOS version, wherein the selecting device comprises:
- a first NAND logic gate receiving a first input signal and a second input signal, and outputting a first controlling signal;
- a second NAND logic gate receiving the first input signal, the second input signal and a third input signal, and outputting a first comparing signal;
- a third NAND logic gate receiving the first input signal, the third input signal and a fourth input signal, and outputting a second comparing signal;
- and
- an AND logic gate receiving the first comparing signal and the second comparing signal, and outputting a second controlling signal;
- a memory device for storing the BIOS versions, and outputting the selected BIOS version according to the selecting signal, wherein said first controlling signal and said second controlling signal are applied to the memory device;
- and
- a CPU coupled to the memory device for loading the responding BIOS version.
6 more elements
Computer equipment using a plurality of BIOS versions, comprising:
- a plurality of switches providing a first input signal, a second input signal, a third input signal and a fourth input signal;
- a selecting device providing a selecting signal responding to the BIOS version according to the first input signal, the second input signal, the third input signal and the fourth input signal;
- a memory device coupled to the selecting device for storing the BIOS versions, comprising two input ports to receive a first controlling signal and a second controlling signal, obtaining the selecting signal according to the first controlling signal and the second controlling signal, and outputting the selected BIOS version according to the selecting signal;
- and
- a CPU coupled to the memory device for loading the responding BIOS version.
2 more elements
Dependencies are inferred from the claim text.