Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPUTER SYSTEM
Document Type and Number:
Japanese Patent JP2011108167
Kind Code:
A
Abstract:

To provide a computer system that safely spreads a program, even if failed in updating, in the system for performing software remote updating during system stop, and for inspecting correctness of a program at start-up of the system.

The computer system includes: a main program; an update program for updating the main program; a client device having an external communication program for communication with the external; and a server device for inspecting whether the program of the client device is normal, and also for distributing the update program. The system performs updating of the main program, by using the update program, when the system is shut down. At the start-up of the system, the system transmits a digest value of three programs to the server device at the start-up of the system, and executes the main program, when all is normal. When only the main program is abnormal, the updating of the main program is executed, and otherwise the processing is stopped.


Inventors:
OGUMA HISASHI
Application Number:
JP2009000265150
Publication Date:
June 02, 2011
Filing Date:
November 20, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA INFOTECH CT CO LTD
TOYOTA MOTOR CORP
International Classes:
G06F9/445; G06F11/00; G06F21/22
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Junichi Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine
Nakamura Go