Ic card, portable electronic apparatus, and ic card processing apparatus
AssigneeKabushiki Kaisha Toshiba
InventorAki FUKUDA
Life of this patent
Estimating the term…
Abstract
An IC card has a communication unit, a storage unit, and a controller. The communication unit communicates with an external apparatus. A communication buffer for communication between the communication unit and the external apparatus is set in the storage unit. If the size of a buffer used in communication is designated by the external apparatus, the controller sets a receive buffer that stores reception data and a transmit buffer that stores transmission data in the communication buffer, and notifies the external apparatus of the size of the set receive buffer and the size of the set transmit buffer.
Claims13
An IC card comprising:
- a communication unit that includes a communication controller and an interface, and that communicates with an external apparatus;
- a storage in which a communication buffer for communication between the communication unit and the external apparatus is set;
- and
- a controller that, if a buffer size that is to be used in communication is designated by the external apparatus, sets a receive buffer that stores reception data and a transmit buffer that stores transmission data in the communication buffer, and notifies the external apparatus of a size of the receive buffer set and a size of the transmit buffer set.
A portable electronic apparatus comprising:
- a communication unit that communicates with an external apparatus;
- a storage in which a communication buffer for communication between the communication unit and the external apparatus is set;
- and
- a controller that, if a buffer size that is to be used in communication is designated by the external apparatus, sets a receive buffer size and a transmit buffer size, sets a receive buffer that stores reception data and a transmit buffer that stores transmission data in the communication buffer, and notifies the external apparatus of the receive buffer size set and the transmit buffer size set.
An IC card processing apparatus comprising;
- an interface that communicates with an IC card;
- and
- a controller that transmits, to the IC card, data in which a buffer size of a receive buffer or a transmit buffer in a communication buffer of the IC card is designated, receives information indicating a receive buffer size and a transmit buffer size that are set by the IC card, and performs data communication in accordance with the receive buffer size and transmit buffer size received in the IC card.
Dependencies are inferred from the claim text.