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US 2011/0210832 A1Published application
Radio communication apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorShigeaki SUZUKI
Life of this patent
Estimating the term…
Abstract
Upon receiving a command for writing data to a transponder, a reading unit performs radio communication with the transponder to which data should be written, thereby reading, in non-contact fashion, a data item stored in the transponder. A collating unit collates the data read by the reading unit with a data item to be written to the transponder. A control unit performs radio communication with the transponder, thereby writing the data item to the transponder, when the data items are not identical, and skips the writing of the data item when the data items are identical.
Claims18
A radio communication apparatus comprising:
- a memory unit which stores data to be written to the transponders;
- a writing unit which performs radio communication with the transponders to write to the transponders write data stored in the memory unit;
- a reading unit which, in response to a write command instructing that the write data stored in the memory unit should be written, performs radio communication with the transponders which are to become a writing target, to read data to be written stored in the transponders, before writing the write data by the writing unit;
- an error processing unit which, when the reading unit fails to read the data to be written, terminates a process in response to the write command as an error;
- a collating unit which, when the reading unit successfully reads the data to be written, collates the data to be written and the write data stored in the memory unit before writing the write data to the transponders by the writing unit;
- and
- a control unit which, as a result of collating the data by the collating unit, activates the writing unit to write the write data stored in the memory unit to the transponders when both data are not identical, and skips the writing of the write data to the transponders without activating the writing unit when both data are identical, wherein,
- the writing unit performs each writing of write data to the transponders in units of words each consisting of a plurality of bytes,
- the collating unit collates the data to be written and the write data stored in the memory unit, word by word, and
- the control unit controls whether to implement or skip the writing for each data in the unit of words.
7 more elements
A radio communication apparatus comprising:
- a memory unit which stores identifications (ID) to be rewritten to transponders;
- a rewriting unit which performs radio communication with the transponders to rewrite IDs stored in the transponders to IDs stored in the memory unit;
- a reading unit which, in response to a rewrite command instructing that IDs stored in the transponders should be rewritten to IDs stored in the memory unit, performs radio communication with the transponders which are to become a rewriting target, to read IDs to be rewritten stored in the transponders, before rewriting the IDs by the rewriting unit;
- an error processing unit which, when the reading unit fails to read the IDs to be rewritten, terminates a process in response to the rewrite command as an error;
- a collating unit which, when the reading unit successfully reads the IDs to be rewritten, collates the IDs to be rewritten and the IDs stored in the memory unit before rewriting the IDs of the transponders by the rewriting unit;
- and
- a control unit which, as a result of collating the IDs by the collating unit, activates the rewriting unit to rewrite the IDs stored in the transponders to the IDs stored in the memory unit when both IDs are not identical, and skips the rewriting of the IDs without activating the writing unit when both IDs are identical, wherein
- the rewriting unit performs each rewriting of IDs to the transponders in units of words each consisting of data of a plurality of bytes,
- the collating unit collates the IDs to be rewritten and the IDs stored in the memory unit, word by word, and
- the control unit controls whether to implement or skip the rewriting for each data in the unit of words.
7 more elements
Dependencies are inferred from the claim text.