Communications: electrical – Vehicle position indication
Reexamination Certificate
2006-04-04
2006-04-04
Swarthout, Brent A. (Department: 2636)
Communications: electrical
Vehicle position indication
C340S539110, C379S038000, C701S207000, C701S213000
Reexamination Certificate
active
07023362
ABSTRACT:
A positional information storage system stores and verifies positional information of a mobile terminal apparatus. The positional information storage system stores (i) the positional information, (ii) time information, and (iii) signature data that is generated by placing a digital signature on a combination of the time information and the positional information of the mobile terminal apparatus only if a user of the mobile terminal apparatus is successfully authenticated. The positional information storage system also verifies whether the signature data is authentic. With this construction, it is possible to authenticate a person carrying the mobile terminal apparatus, and to verify whether data to be stored in the memory has been tampered with.
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Futa Yuichi
Ohmori Motoji
Tatebayashi Makoto
Swarthout Brent A.
Wenderoth , Lind & Ponack, L.L.P.
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