Upgrading software held in read-only storage

Details Upgrading software held in read-only storage Upgrading software held in read-only storage

2007-01-16

2007-01-16

Zhen, Wei (Department: 2191)

Data processing: software development, installation, and managem

Software upgrading or updating

C717S169000, C717S170000, C717S174000, C717S175000, C717S176000

Reexamination Certificate

active

10210496

ABSTRACT:
A method and apparatus for upgrading software held in read-only storage are described comprising non-reprogrammable read-only memory (116) which stores a file manager program (120), program file A (122) and program file B (124) and a Flash® RAM (118) which stores file X (132). Under control of the file manager program (120), when an upgrade program file B+(126) is acquired, for example via the Internet, it is stored within Flash® RAM (118) and file X (132) is updated. When the software executes, file A (122) calls file B+(126) in preference to calling file B (124), in accordance with the contents of file X (132).

REFERENCES:
patent: 5857204 (1999-01-01), Lordi et al.
patent: 6611957 (2003-08-01), Ebisawa
patent: 6625668 (2003-09-01), Sato
patent: 6637023 (2003-10-01), Ginsberg
patent: 6639544 (2003-10-01), Yamada et al.
patent: 6640335 (2003-10-01), Ebisawa
patent: 6640336 (2003-10-01), Ebisawa
patent: 6782533 (2004-08-01), Ebisawa

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