| 摘要 |
<P>PROBLEM TO BE SOLVED: To resolve the problem that a two-bank system has a disadvantage in updating of firmware recently increasing in size because requiring a nonvolatile memory which is twice or more as large as firmware in size, for preservation of both operating firmware and updated firmware though a firmware update method of the two-bank system is generally employed for software built in a device. Ž<P>SOLUTION: A broadcast receiver has a nonvolatile memory configuration of a one-bank system and receives data of two kinds of data of firmware for restoration and updated firmware when updating firmware, and writes the updated firmware in an area other than a write area for the firmware for restoration after writing the firmware for restoration into the head of a nonvolatile memory, and writes the updated firmware which has not completely written, into the write area for firmware for restoration after completing verification in the write area for the updated firmware. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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