Registers – Records – Conductive
Reexamination Certificate
2007-07-17
2007-07-17
Paik, Steven S. (Department: 2876)
Registers
Records
Conductive
C235S451000, C235S380000, C340S010200
Reexamination Certificate
active
10996818
ABSTRACT:
A data communication system includes a host device, a reader/writer device and a plurality of contactless identification tags. The contactless identification tag includes a data reception section, a data transmission section, a data control section, a data storage section, a driving electric current generation section and a coil antenna. In response to a command from the reader/writer device, the data control section generates a random number, and sets a time slot number based on the random number and a unique identification number stored in advance in the data storage section.
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Aso Satoshi
Matsumoto Kenji
Paik Steven S.
Seiko Epson Corporation
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