Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2002-07-03
2009-08-04
Rampuria, Sharad (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S411000, C455S404200, C340S539130
Reexamination Certificate
active
07570960
ABSTRACT:
A mobile terminal100includes a position information detection part8that detects current position information, a position information decoder part9that calculates the current position information as latitude/longitude information, and a position accuracy degradation-producing part10that degrades the apparent accuracy of the latitude/longitude information in plural levels. In operation, when a position search request is made from a third-person terminal, the mobile terminal100transmits position information with an accuracy according to the authentication result (such as the result of password verification) of the third-person terminal concerned. Therefore, even when the password has been stolen, position information with an accuracy intentionally degraded by the user of the mobile terminal can be transmitted, thereby preventing an inversion of privacy or stalking.
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Great Britain Search Report dated Dec. 7, 2002.
NEC Corporation
Rampuria Sharad
Whitham Curtis Christofferson & Cook PC
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