COMMUNICATION METHOD FOR RADIO FREQUENCY IDENTIFICATION
First Claim
1. A data receiving method performed by an RFID (radio frequency identification) reader, the data receiving method comprising:
- generating a command message comprising a command code indicating a type of a command to be delivered to an RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag;
transmitting the command message to the RFID tag;
receiving the response message, in response to the command message, from the RFID tag; and
extracting the additional data from the received response message according to the response format.
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Accused Products
Abstract
Provided is a communication method for radio frequency identification (RFID). In order to transmit a command message with respect to an RFID tag, an RFID reader generates a command message comprising a command code indicating a type of command to be delivered to the RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag; and transmits the command message to the RFID tag, thereby allowing the RFID tag to immediately transmit the additional data via the response message in response to the command message.
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Citations
22 Claims
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1. A data receiving method performed by an RFID (radio frequency identification) reader, the data receiving method comprising:
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generating a command message comprising a command code indicating a type of a command to be delivered to an RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag; transmitting the command message to the RFID tag; receiving the response message, in response to the command message, from the RFID tag; and extracting the additional data from the received response message according to the response format. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data receiving method performed by an RFID (radio frequency identification) reader, the data receiving method comprising:
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generating a command message comprising a command code indicating a command in which a type of additional data to be added to a response message to be received from an RFID tag is predefined, and an identifier identifying the RFID tag; transmitting the command message to the RFID tag; receiving the response message, in response to the command message, from the RFID tag; and extracting the additional data from the received response message according to the predefined type of the additional data. - View Dependent Claims (10, 11, 12, 13)
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14. A data transmitting method performed by an RFID (radio frequency identification) tag, the data transmitting method comprising:
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receiving a command message comprising a command code indicating a type of a command of an RFID reader, a response format having one or more bits for indicating a type of additional data to be added to a response message to be transmitted to the RFID reader, and an identifier allowing the RFID reader to identify the RFID tag; inserting the additional data into the response message in response to the command message, according to information indicated by the one or more bits of the response format of the command message; and transmitting the response message to the RFID reader. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A data transmitting method performed by an RFID (radio frequency identification) tag, the data transmitting method comprising:
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receiving a command message comprising a command code indicating a command for designating a type of additional data to be transmitted to the RFID reader, and an identifier allowing the RFID reader to identify the RFID tag; inserting the additional data into the response message in response to the command message, according to the designated type of the additional data; and transmitting the response message to the RFID reader.
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Specification