Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2005-03-01
2005-03-01
Jeanglaude, Gertrude A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C701S066000, C707S793000
Reexamination Certificate
active
06862505
ABSTRACT:
A vehicle-mounted information processing apparatus such as a car-navigation system detects that a key switch of the vehicle has been set up at a Lock position (i.e., the engine is stopped). After that, the apparatus performs data reproduction of data files in an order from the oldest, then re-recording the reproduced data files with no change added thereto. Here, the above-described data files, which are stored within a magnetic disk device built in the apparatus, have been not updated for a constant time-period. This re-recording prevents a data loss caused by a thermal decay in the case where the magnetic disk device is mounted inside the vehicle that is likely to have existed under a high-temperature environment for a long time-period.
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Kohida Hiroyuki
Miyazawa Hirohisa
Nakamura Kozo
Nakamura Shigeo
Saito Atsushi
Hitachi , Ltd.
Jeanglaude Gertrude A.
Mattingly Stanger & Malur, P.C.
Xanavi Informatics Corporation
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