Dual mode RFID communication device operating as a reader or tag
First Claim
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1. A wireless communication card comprising:
- a radio frequency (RF) antenna for transmitting and receiving wireless signals;
a tuning circuit as a frequency filtering circuit connected to the RF antenna;
a memory for storing data;
a secondary rechargeable battery comprising a bare cell and two charge/discharge terminals connected to the bare cell;
a protection circuit for controlling charge and discharge of the bare cell; and
a plurality of antenna connection terminals connected to the RF antenna, wherein one of the plurality of antenna connection terminals is shared with one of the charge/discharge terminals such that the one terminal is configured to both supply power to a wireless communication controller set of a mobile communication device and connect the memory of the wireless communication card to the wireless communication controller set to transfer data via electrical current.
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Abstract
An RFID device, and more particularly to a RFID device which can be used in both a tag mode and a reader mode. There is provided an RF antenna transmitting and receiving wireless signals; a tuning circuit as a frequency filtering circuit connected to the RF antenna; a memory storing data; and a wireless communication card including antenna connection terminals connected to the RF antenna.
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Citations
18 Claims
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1. A wireless communication card comprising:
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a radio frequency (RF) antenna for transmitting and receiving wireless signals; a tuning circuit as a frequency filtering circuit connected to the RF antenna; a memory for storing data; a secondary rechargeable battery comprising a bare cell and two charge/discharge terminals connected to the bare cell; a protection circuit for controlling charge and discharge of the bare cell; and a plurality of antenna connection terminals connected to the RF antenna, wherein one of the plurality of antenna connection terminals is shared with one of the charge/discharge terminals such that the one terminal is configured to both supply power to a wireless communication controller set of a mobile communication device and connect the memory of the wireless communication card to the wireless communication controller set to transfer data via electrical current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio frequency identification (RFID) device comprising a wireless communication card configured to connect to a wireless communication controller set of the RFID device, the RFID device comprising:
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a matching circuit for filtering a frequency; a communication controller chip for controlling the communication card in passive mode and the wireless communication controller set in active mode; a memory for storing data; a microcontroller unit for controlling the communication controller chip, wherein the matching circuit is a frequency filtering circuit for connecting to a plurality of antenna connection terminals of the wireless communication card; and two charge/discharge terminals connected to a bare cell of the wireless communication card; wherein one of the plurality of antenna connection terminals is shared with one of the charge/discharge terminals of the bare cell such that the one terminal is configured to both supply power to the wireless communication controller set and connect the memory of the wireless communication card to the wireless communication controller set to transfer data via electrical current. - View Dependent Claims (11, 12, 13)
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14. A radio frequency identification (RFID) device comprising a wireless communication card and a wireless communication controller set:
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the wireless communication card comprising; a radio frequency (RF) antenna for transmitting and receiving wireless signals; a tuning circuit as a frequency filtering circuit connected to the RF antenna; a memory for storing data; a rechargeable battery comprising a bare cell and two charge/discharge terminals connected to the bare cell; a protection circuit for controlling charge and discharge of the bare cell; and a plurality of antenna connection terminals connected to the RF antenna, wherein one of the plurality of antenna connection terminals is shared with one of the charge/discharge terminals such that the one terminal is configured to both supply power to the wireless communication controller set and connect the memory of the wireless communication card to the wireless communication controller set to transfer data via electrical current; and the wireless communication controller set comprising; a matching circuit for filtering a frequency; a communication controller chip for controlling the wireless communication card in passive mode and the wireless communication controller set in active mode; and a microcontroller unit for controlling the communication controller chip, wherein the matching circuit is a frequency filtering circuit for connecting to the plurality of terminals of the antenna of the wireless communication card; and wherein one of the plurality of terminals of the antenna connects to the rechargeable battery of the wireless communication card. - View Dependent Claims (15, 16, 17, 18)
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Specification