Integrated circuit card system and a data transmission method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorKi Hong Kim
Life of this patent
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Abstract
An integrated circuit card system that includes a radio frequency (RF) integrated circuit configured to wirelessly communicate with an integrated circuit card reader; and an integrated circuit card, which is connected to the RF integrated circuit by a single wire, the integrated circuit card configured to change an amount of current of a data signal output from the integrated circuit card according to a transmission speed of a data signal input to the integrated circuit card from the RF integrated circuit.
Claims20
A transmission method, comprising:
- receiving a first data signal transmitted in accordance with a single wire protocol;
- determining a transmission speed of the first data signal;
- and
- outputting a second data signal in accordance with the single wire protocol, wherein an amount of current of the second data signal is changed according to the transmission speed of the first data signal.
An integrated circuit card system, comprising:
- a radio frequency (RF) integrated circuit configured to wirelessly communicate with an integrated circuit card reader;
- and
- an integrated circuit card connected to the RF integrated circuit by a single wire, the integrated circuit card configured to change an amount of current of a data signal output from the integrated circuit card according to a transmission speed of a data signal input to the integrated circuit card from the RF integrated circuit.
A radio frequency identification (RFID) system, comprising:
- an RFID reader configured to read data from an RFID tag,
- wherein the RFID reader comprises:
- an RF integrated circuit configured to wirelessly communicate with the RFID tag;
- and
- an integrated circuit card connected to the RF integrated circuit by a single wire, the integrated circuit card configured to change an amount of current of a data signal output from the integrated circuit card according to a transmission speed of a data signal input to the integrated circuit card from the RF integrated circuit.
Dependencies are inferred from the claim text.