Near field communication reader device, near field communication tag device, near field communication system and near field communication method

摘要

A near field communication reader device is provided including a transmitter to transmit a request to a near field communication tag device; wherein the request is formed according to a predetermined format including an identifier section for carrying a request identifier; a receiver to receive a response from the near field communication tag device; wherein the response is formed based on the request according to the predetermined format including the identifier section for carrying a response identifier; and a processor to generate the request identifier, to compare the request identifier with the response identifier and to accept the response as a valid response if the response identifier is different from the request identifier. A corresponding near field communication tag device, a near field communication system and a near field communication method are provided as well.

主权项

1. A near field communication reader device comprising:
a transmitter to transmit a request message to a near field communication tag device, the request message being formed according to a predetermined format, the request message including an identifier section in which an identifier that identifies the request message is disposed; a receiver to receive a response message from the near field communication tag device, the response message being formed based on the request message according to the predetermined format, and the response message including an identifier section in which an identifier that identifies the response message is disposed; and a processor to generate the identifier that identifies request message, compare the identifier that identifies the request message with the identifier that identifies the response message, wait until a response message is received that has an identifier that is different from the identifier that identifies the request message in order to identify the response message that has the identifier that is different from the identifier of the request message as valid, wherein the processor generates identifiers of request messages as arithmetic sums of a same constant value and identifiers of received response messages.