发明名称 |
SOFTWARE UPDATING METHOD AND PORTABLE TERMINAL DEVICE |
摘要 |
A software updating method for updating software stored as compressed code in a nonvolatile memory provided in a portable terminal on the basis of differential data via wireless communication includes the steps of providing a file system area having a fault-tolerant property; decompressing, at the execution of software updating, the compressed code of the software and loading the decompressed code into a random-access memory; updating the software in the random-access memory on the basis of the differential data; compressing the updated software; and storing a backup of a compressed updated code sequence corresponding to a compressed updated portion of the compressed updated software in the file system area and then writing the compressed updated code sequence corresponding to the compressed updated portion of the compressed updated software back to the nonvolatile memory.
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申请公布号 |
US2009007090(A1) |
申请公布日期 |
2009.01.01 |
申请号 |
US20080126444 |
申请日期 |
2008.05.23 |
申请人 |
SONY ERICSSON MOBILE COMMUNICATIONS JAPAN INC. |
发明人 |
HIRAO YASUYUKI;AOYAGI KATSUMI;SANBOMMATSU TOSHIHISA;ICHIKAWA TOMOHIRO;ASA KENJI |
分类号 |
G06F9/44 |
主分类号 |
G06F9/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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