IC card, portable electronic device, program, processing apparatus, and processing system

Patent metadata

Field	Value
Publication number	US-10461971-B2
Application number	US-201815922234-A
Country	US
Kind code	B2
Filing date	Mar 15, 2018
Priority date	Mar 17, 2017
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Toshiba Kk
• Toshiba Infrastructure Systems & Solutions Corp

Inventors

• Uchida Keisuke

Classifications

• G06K7/10019

  resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. (collision between the communication channels used by wireless communication devices, where the solution is not particularly adapted for RFIDs or the like, H04W74/08) · CPC title

• G06F13/4295

  using an embedded synchronisation · CPC title

• H04L1/1819

  with retransmission of additional or different redundancy · CPC title

• G06K19/0727

  the arrangement being a circuit facilitating integration of the record carrier with a hand-held device such as a smart phone of PDA · CPC title

• H04L29/06

  Electricity · mapped topic