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.

Date of Patent:
Nov. 21, 2000

Filed:

Jul. 21, 1998
Applicant:
Inventor:

Norio Numako, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396 48 ; 396300 ; 396439 ;
Abstract

An electronic device includes a first non-volatile memory for storing a control program for controlling an operation of the electronic device, and a second non-volatile memory for storing at least one modifying program for modifying the control program. The second non-volatile memory also stores modification information related to a modification of the control program. At least one predetermined portion of the control program can call a software modification management routine. The modification information is then read and the electronic device determines whether a modifying program to be executed is present in accordance with the modification information and address information, which indicates a current operating position of the control program, in response to the calling of the software modification management routine. The control program and the modifying program are then executed if the electronic device determines that the modifying program is present.


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