Integrated circuit card for reducing power consumption
AssigneeSamsung Electronics Co., Ltd.
InventorsHyuk-Jun Sung, Ki-Yeol Kim
Life of this patent
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Abstract
An integrated circuit card includes an interface block for performing an interface function with the external devices and a power controller for controlling power of a security integrated circuit for detecting if an operational environment is in an abnormal state, the power controller periodically and selectively applies power to the security integrated circuit. Thus, power consumption is reduced in the integrated circuit card; and a stable operation of the integrated circuit card which contactlessly communicates with the external devices can be secured with an extended communication distance.
Claims21
An integrated circuit card comprising:
- an interface block performing an interface function to a plurality of external devices;
- a function block performing other functions except the interface function;
- and
- a power controller selectively controlling power application to and removal from the interface block and the function block,
- wherein the function block includes a security detection circuit detecting a state of an operational environment of the integrated circuit card, wherein the security detection circuit includes a plurality of detectors.
An integrated circuit card comprising:
- an interface block performing an interface function with the external devices;
- a data processing block processing data transmitted through the interface block;
- a security detection circuit detecting if an operational environment of the integrated circuit card is in an abnormal state;
- and
- a power controller controlling powers of the interface block, the data processing block and the security detection circuit, wherein the power controller periodically supplies power to the security detection circuit.
An integrated circuit card comprising:
- a plurality of circuit blocks;
- and
- a power controller controlling a group of circuit blocks selected out of other circuit blocks not related to a communication which are comprised in the circuit blocks interacting with the external devices in a communication interval,
- wherein the power controller sequentially enables the other group of circuit blocks, and disables the enabled circuit block after an enable time passes.
Dependencies are inferred from the claim text.