Privacy protection method, device for transmitting identifier for privacy protection, privacy protection system and program, and monitoring system
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United States of America Patent
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Oct 4, 2011
Grant Date -
Jun 21, 2007
app pub date -
Dec 7, 2004
filing date -
Dec 8, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
To prevent privacy invasion performed according to a proper identifier which has been read.) and different RFID is transmitted each time for the same person. The respective pseudo RFID transmission devices are grouped into a plurality of types, so that the pseudo RFID transmission devices belonging to the same group transmit their variable type pseudo RFID while increasing the possibility to transmit common pseudo RFID accorded with one another. An area is specified for each group and the respective pseudo RFID transmission devices are provided to individual users, so that the same RFID may be transmitted for the same person.
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