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. 01, 2009
Filed:
Feb. 01, 2007
Katsumi Aoyagi, Tokyo, JP;
Tomohiro Ichikawa, Tokyo, JP;
Yoshinori Motoyama, Tokyo, JP;
Sony Ericsson Mobile Communications Japan, Inc., Tokyo, JP;
Abstract
A mobile terminal having a communication function. The apparatus includes: a nonvolatile memory including a memory area storing a main-unit program including an update engine for updating software and an alternative unit area for a unit area in the memory area; a working memory; and control means for accessing both of the memories. The control means downloads differential data between a version of the main-unit program and a version of a new main-unit program, expands the update engine into the working memory area, executes the update engine, updates the main-unit program for each unit area by the differential data, completes the update processing if the update has been successful, and performs the unit-area update processing on the alternative unit area and replaces the defective unit area by the alternative unit area if a defect of a unit area has been detected at the time of the update.