The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1995
Filed:
Dec. 27, 1994
Masato Maebayashi, Yokohama, JP;
Makoto Kimura, Inba, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A firmware modification system in a data processing apparatus, containing a processor for executing a program and a working program holding unit for holding therein data of the program executed by the processor. The system also includes fixed program data storing unit for storing a fixed program data and a modification data storing unit for storing modification data with which the fixed program data is to be modified, where the modification data storing unit is accessible from outside of the data processing apparatus for writing the modification data therein. A fixed program data loading unit is used for reading from the fixed program data storing unit, and loading the fixed program data in the working program holding unit to hold the fixed program data therein, and a working program modifying unit is used for modifying data of the program which is held in the working program holding unit, with the modification data stored in the modification data storing unit.