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Method and device for the contact-free transmission of data from and/or to a plurality of data or information carriers, preferably in the form of RFID tags

A technology of RFID tags and information carriers, applied in the near-field transmission system of transceivers, read/write/query/recognition near-field transmission systems, induction record carriers, etc. Tags and other issues to achieve the effect of expanding the writing and reading area

Inactive Publication Date: 2010-08-11
KATHEIN WERKE KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if switched to "dumb" or "deactivated", the tag is still active from the high-frequency side, because the tag for example absorbs power
[0007] Problems arise especially when several labels are arranged next to each other in a narrow space, for example because the labels are used to label T-shirts etc., and these T-shirts are arranged here directly next to each other.
This leads to tags interacting with each other, with the result that some tags are only poorly reached and read

Method used

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  • Method and device for the contact-free transmission of data from and/or to a plurality of data or information carriers, preferably in the form of RFID tags
  • Method and device for the contact-free transmission of data from and/or to a plurality of data or information carriers, preferably in the form of RFID tags
  • Method and device for the contact-free transmission of data from and/or to a plurality of data or information carriers, preferably in the form of RFID tags

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Embodiment Construction

[0023] exist figure 1 A transmitting and / or receiving unit 1 , a so-called reader 1 , is shown schematically in FIG. 2 , which is connected to an antenna or to an antenna arrangement 5 via a line or cable 3 .

[0024] The antenna arrangement preferably consists of one or more shared transmit and / or receive antennas. At a distance from this antenna arrangement, for example, product boards or generally objects or goods 7 are provided, such as clothing (T-shirts, etc.), which are each equipped with tags or transponders for acquisition (detection, identification) 9. Here, it can be a tag 9 or, in general, a transponder 9 , which is also partly referred to as a data or information carrier 9 . The tags or transponders 9 can be of the same or different construction types here. The goods mentioned above only by way of example, such as T-shirts, for example, are arranged on top of each other, so that the individual labels 9 are partially at a small distance from each other.

[0025...

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Abstract

An improved method and an improved device for the contact-free transmission of data from and / or to a plurality of data or information carriers (9) are characterized by the following features: After the exchange of information between a read and / or write device (1) and a data or information carrier (9), said carrier is switched to a standby impedance mode (Z4) in order to reduce undesired interaction with data or information carriers (9) adjoining the antenna field, said mode differing from an initial impedance mode (Z1) and communication impedance modes (Z2, Z3) during the emission of an information signal from the data or information carrier (9).

Description

technical field [0001] The present invention relates to a method and a device for the contactless transmission of data from and / or to a plurality of data or information carriers, in particular in the form of RFID tags, according to the preambles of claim 1 and claim 16 . Background technique [0002] RFID methods for contactless identification of information stored on so-called RFID tags by means of magnetic, electrical, and / or electromagnetic energy and data transmission have been known for a long time. This RFID method (Radio Frequency Identification) involves a contactless reading and / or writing of information on a portable data carrier. With so-called passive RFID tags, which always obtain their energy from the electrical, magnetic and / or electromagnetic field of the antenna, or with so-called active RFID tags, they have their own (rechargeable) energy supply . Generally, RFID tags are so-called transponders. [0003] The RFID tags in question can be used for differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/02G06K7/00H04B5/48
CPCG06K7/0008G06K7/10059H04B5/0062H04B5/02G06K7/10039H04B5/77H04B5/48
Inventor G·席尔迈尔T·兰克斯F·米尔克
Owner KATHEIN WERKE KG
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