Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Data processing unit and method for controlling overwrited by non-volatility storage device

A technology of non-volatile storage and data processing equipment, which is applied in the direction of electrical digital data processing, computer security devices, digital computer components, etc., and can solve problems such as BIOS damage

Inactive Publication Date: 2006-12-06
TOSHIBA CLIENT SOLUTIONS CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the BIOS on any personal computer executing the software will be corrupted

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data processing unit and method for controlling overwrited by non-volatility storage device
  • Data processing unit and method for controlling overwrited by non-volatility storage device
  • Data processing unit and method for controlling overwrited by non-volatility storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] An embodiment of the present invention will be described based on the drawings.

[0034] Figure 1 shows a computer system which is an embodiment of the present invention. The system is a notebook personal computer that can be driven by a battery. The computer includes a processor bus 1, a PCI bus 2, an ISA bus 3, a CPU 11, a main PCI bridge 12, a main memory 13, a display controller 14, a PCI-ISA bridge 15, an I / O controller 16, a communication device 17, and a flash memory. Fast (Flash) BIOS-ROM 18 and EEPROM 19.

[0035] A CPU (Central Processing Unit) 11 controls some other elements of the computer. It executes an operating system (OS), a ROM rewriting program, etc. loaded in the main memory 13 . ROM rewrite program is software designed to rewrite flash BIOS-ROM18. It is application software that works when the CPU 11 executes the OS. While executing the OS, the CPU 11 can execute a ROM rewriting program to update the BIOS stored in the flash BIOS-ROM 18 .

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In a computer, software may make an access to a controller in order to rewrite the contents of a nonvolatile storage device. If so, an interruption signal is automatically supplied to a CPU. In response to the interruption signal the CPU stops executing the software and starts performing an interruption process. During the interruption process it is determined whether the access made by the software is a right one. If the access is a wrong one, the rewriting of the contents of the nonvolatile storage device is prohibited at once.

Description

technical field [0001] The present invention relates to a data processing apparatus, such as a personal computer, which has a nonvolatile storage device, and to a control method for rewriting of the nonvolatile storage device incorporated in the data processing apparatus. Background technique [0002] In recent years, various portable, battery-driven notebook personal computers have been developed. Each notebook personal computer contains an electrically programmable nonvolatile memory device such as a flash memory. The nonvolatile memory device stores BIOS (Basic Input / Output System). It can be electrically programmable, whereby the BIOS can be easily updated to a new version. [0003] There are generally two types of objects that are required to update the BIOS in a personal computer. The first type of object is a new version BIOS image file (image file). The second object is a floppy disk (FD) that stores the BIOS update system program. The floppy disk is inserted in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/00G06F12/14G06F13/42G06F21/12G06F21/44G06F21/60G06F21/62G06F21/79
CPCG06F13/4239
Inventor 前田真弓
Owner TOSHIBA CLIENT SOLUTIONS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com