Improved communication between a communication station and data carriers

A technology for data carriers and communication stations, which is applied to inductive record carriers, memory record carrier reading problems, instruments, etc., can solve problems such as reducing the recognition rate of data carriers, improve anti-interference, minimize the probability of conflict, The effect of fast communication
CN101147156AInactive Publication Date: 2008-03-19NXP BV
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
NXP BV
Publication Date
2008-03-19
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The invention relates to a method of communication between a communication station (1) and data carriers (2), and furthermore to such a communication station (1) and to such data carriers (2). According to the invention the communication station (1) is adapted to receive and identify response signals (RDB) of different lengths (L) supplied by the data carriers (2). Said length (L) of the response signals (RDB) provided by the data carriers (2), which data carriers (2) are adapted to generate response signals (2) with different lengths (L), is determined in or before an interrogation cycle (IPER) before the response signals (RDB) with said length (L) are supplied by the data carriers (2) in response to the interrogation signal (IDB). In a specific solution the length (L) is determined in each interrogation cycle.
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Description

technical field

[0001] The invention relates to a communication method between a communication station and a data carrier.

[0002] The invention also relates to a communication station for communicating with a data carrier.

[0003] The invention also relates to a data carrier for communication with a communication station. Background technique

[0004] During the communication between a communication station and a plurality of such data carriers, for example known RFID-tags (ā€œradio-frequency identificationā€), the communication station, for example a read / write unit for such RFID-tags, first in the interrogation cycle During this, an interrogation signal is provided to some or all data carriers present within the communication range of the communication station, after which each of the response data carriers provides a response signal to the communication station. Such communication methods between a communication station and a data carrier are known and described in more...

Claims

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