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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

Inactive Publication Date: 2008-03-19
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of a long fixed length offers the disadvantage that the identification of the data carrier lasts longer, thereby reducing the identification rate of the data carrier

Method used

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  • Improved communication between a communication station and data carriers
  • Improved communication between a communication station and data carriers
  • Improved communication between a communication station and data carriers

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] FIG. 1 shows a communication station 1 for communicating with a data carrier 2 as shown in FIG. 2 . Communication between the communication station 1 and the data carrier 2 is possible when the data carrier 2 is located within the communication range of the communication station, ie is present within this communication range. The communication station 1 and the data carrier 2 are adapted to communicate in consecutive time slots.

[0041] The communication station 1 comprises a power supply 3 for all parts of the communication station to be powered.

[0042] The communication station 1 also includes a microcomputer 4 . The microcomputer 4 is connected via a bus connection 5 to a so-called host computer (not shown in FIG. 1 ). The microcomputer 4 includes a process control device 6 and an interrogation signal generating device 7 and an acknowledgment signal generating device 8 .

[0043] In the present case, the process control device 6 comprises a mode switching devic...

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PUM

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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.

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 (“radio-frequency identification”), 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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00
CPCG06K7/0008G06K7/10019
Inventor 弗朗茨·阿姆特曼
Owner NXP BV
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