IC card, portable electronic device, program, processing apparatus, and processing system
View Patent ↗According to one embodiment, according to one embodiment, an IC card executing a command from a processing apparatus includes a communication unit and a processing unit. The communication unit transmits/receives data to/from the processing apparatus. Upon receiving, through the communication unit, a first command requesting transmission of data in a first frame not including a start code or an end code, the processing unit transmits data in the first frame through the communication unit.
1. An IC card that executes a command from a processing apparatus, the IC card comprising:
an interface that transmits and receives data to and from the processing apparatus;
a processor that transmits, through the interface, data in a first frame not comprising a start code or an end code upon receiving, through the interface, a first command requesting transmission of data in the first frame; and
a storage unit that stores a flag indicating whether the start code and the end code are necessary or not;
wherein the processor:
sets, in the flag, a value indicating that the start code and the end code are unnecessary upon receiving the first command;
transmits data in the first frame to the processing apparatus if the value indicating the unnecessity of the start code and the end code is set in the flag; and
transmits data in a second frame comprising the start code upon receiving a second command requesting the start code through the interface; and
the second frame does not comprise the end code.
2. The IC card according to claim 1 , wherein the first command is in an R-block.
3. The IC card according to claim 1 , wherein:
the start code is an SOF that conforms to ISO/IEC14443; and
the end code is an EOF that conforms to ISO/IEC14443.
4. An IC card that executes a command from a processing apparatus, the IC card comprising:
a module comprising: an interface that transmits and receives data to and from the processing apparatus; a processor that transmits, through the interface, data in a first frame not comprising a start code or an end code upon receiving, through the interface, a first command requesting transmission of data in the first frame; and a storage unit that stores a flag indicating whether the start code and the end code are necessary or not; and
a body incorporating the module;
wherein the processor:
sets, in the flag, a value indicating that the start code and the end code are unnecessary upon receiving the first command;
transmits data in the first frame to the processing apparatus if the value indicating the unnecessity of the start code and the end code is set in the flag; and
transmits data in a second frame comprising the start code upon receiving a second command requesting the start code through the interface; and
the second frame does not comprise the end code.
5. A portable electronic device that executes a command from a processing apparatus, the portable electronic device comprising:
an interface that transmits and receives data to and from the processing apparatus;
a processor that transmits, through the interface, data in a first frame not comprising a start code or an end code upon receiving, through the interface, a first command requesting transmission of data in the first frame; and
a storage unit that stores a flag indicating whether the start code and the end code are necessary or not,
wherein the processor:
sets, in the flag, a value indicating that the start code and the end code are unnecessary upon receiving the first command;
transmits data in the first frame to the processing apparatus if the value indicating the unnecessity of the start code and the end code is set in the flag; and
transmits data in a second frame comprising the start code upon receiving a second command requesting the start code through the interface; and
the second frame does not comprise the end code.
6. A non-transitory, computer-readable storage medium comprising a program that, when executed by a processor, causes the processor to be configured to:
receive a first command requesting transmission of data in a first frame not comprising a start code or an end code, through an interface that transmits and receives data to and from a processing apparatus;
transmit data in the first frame through the interface if receiving the first command;
set, in a flag, a value indicating that the start code and the end code are unnecessary upon receiving the first command;
transmit data in the first frame to the processing apparatus if the value indicating the unnecessity of the start code and the end code is set in the flag; and
transmit data in a second frame comprising the start code upon receiving a second command requesting the start code through the interface;
wherein the second frame does not comprise the end code.
7. A processing apparatus that transmits a command to a portable electronic device, the processing apparatus comprising:
an interface that transmits and receives data to and from the portable electronic device; and
a processor that transmits, through the interface, a first command requesting transmission of data in a first frame not comprising a start code or an end code; and
wherein the processor:
receives data in the first frame through the interface; and
if failing to receive the data, transmits, through the interface, a second command requesting transmission of data in a second frame comprising the start code.
8. The processing apparatus according to claim 7 , wherein the second frame does not comprise the end code.
9. The processing apparatus according to claim 7 , wherein the first command is in an R-block.
10. The processing apparatus according to claim 7 , wherein:
the start code is an SOF that conforms to ISO/IEC14113; and
the end code is an EOF that conforms to ISO/IEC14443.
11. A processing system comprising a portable electronic device and a processing apparatus, wherein:
the portable electronic device comprises: a first interface that transmits and receives data to and from the processing apparatus; a first processor that transmits, through the first interface, data in a first frame not comprising a start code or an end code upon receiving, through the first interface, a first command requesting transmission of data in the first frame; and a storage unit that stores a flag indicating whether the start code and the end code are necessary or not;
the first processor:
sets, in the flag, a value indicating that the start code and the end code are unnecessary upon receiving the first command;
transmits data in the first frame to the processing apparatus if the value indicating the unnecessity of the start code and the end code is set in the flag; and
transmits data in a second frame comprising the start code upon receiving a second command requesting the start code through the interface; and
the second frame does not comprise the end code;
the processing apparatus comprises: a second interface that transmits and receives data to and from the portable electronic device; and a second processor that transmits the first command through the second interface; and
the second processor:
receives data in the first frame through the interface; and
if failing to receive the data, transmits, through the interface, the second command.
12. The processing apparatus according to claim 8 , wherein the first command is in an R-block.
13. The processing apparatus according to claim 8 , wherein:
the start code is an SOF that conforms to ISO/IEC14443; and
the end code is an EOF that conforms to ISO/IEC14443.