Vehicle controller for controlling rewriting data in a nonvolatile memory
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United States of America Patent
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-
May 24, 2005
Grant Date -
Apr 10, 2003
app pub date -
Oct 9, 2002
filing date -
Oct 9, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle controller comprises a first buffer for storing at least one data block, a second buffer for storing at least one data block, and a rewritable non-volatile memory for storing information for controlling a vehicle. The controller receives a data block from an external rewriting device to store it in the first buffer. The data block stored in the first buffer is transferred to the second buffer. The data block stored in the second buffer is written into the memory. When a first data block is written into the memory, a subsequent data block is received. Thus, the time required to rewrite data stored in the nonvolatile memory is reduced.
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