Harness, Dickey & Pierce, P.L.C.
Data communication system, data communication device, contactless communication medium, and communication device control program
A radio frequency identification system is provided having a data communication device and a contactless identification tag. The data communication device has an antenna coil, a first data receiving unit, a first data transmitting unit, a first data control unit, and a first data storing unit. Further, the contactless identification tag has an antenna coil, a second data receiving unit, a second data transmitting unit, a second data control unit, a second data storing unit, and a driving power generating unit. The first data control unit generates negative logic digital signals of transmission data. The first data transmitting unit modulates the digital signals and transmits the modulated signals.
Seiko Epson Corporation
G G
G06K G06K
inventional inventional
Hideaki
Yamada