Reader, tags, radio frequency identification (RFID) system, and method thereof

A radio frequency identification system and reader technology, applied in the field of readers and labels, can solve the problems of wasting power consumption and prolonging reading time

Inactive Publication Date: 2006-12-27
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, reading time is extended and power consumption is wasted

Method used

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  • Reader, tags, radio frequency identification (RFID) system, and method thereof
  • Reader, tags, radio frequency identification (RFID) system, and method thereof
  • Reader, tags, radio frequency identification (RFID) system, and method thereof

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Embodiment Construction

[0022] Now, some exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0023] In the following description, the same reference numerals are used for the same components throughout the drawings. Details defined in the description, such as detailed construction and component descriptions, are provided to facilitate a comprehensive understanding of the invention. Also, known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0024] figure 2 is a block diagram of a reader 100 and tags 200 and 201 according to an embodiment of the present invention. Tags 200 and 201 each include: a receiver 210 , an identification (ID) code generator 220 and a transmitter 230 .

[0025] The receiver 210 receives the interrogation signal sent by the reader 100 . The interrogation signal is sent by the reader 100 to request the tags 200 and 201 to notify th...

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PUM

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Abstract

A reader, tags, an RFID system, and a method of simultaneously identifying a plurality of tags having colliding reply signals and reducing the reading time. In the RFID system including a reader and plural tags assigned unique IDs, the reader stores a comparison code which identifies ID codes generated based on the unique IDs of the tags, and issues a query signal to the tags to inquire into the presence of the tags. In response to the received query signal, the tags generate the ID codes based on their unique IDs and sends the ID codes to the reader. The reader stores the received ID codes and identifies the responding tags by comparing the stored comparison code with the ID codes. When the ID codes are orthogonal, colliding reply signals can be resolved through a correlation technique.

Description

technical field [0001] Methods and devices consistent with the present invention relate to readers, tags, radio frequency identification (RFID) systems. More particularly, the present invention relates to a reader, tags, an RFID system and a method of simultaneously identifying multiple conflicting tags in a reply signal to reduce reading time. Background technique [0002] figure 1 Operation of a radio frequency identification (RFID) system including a reader and tags is shown. RFID is a technology for identifying an object with a tag without having to physically touch the object by using information contained in the tag. Various applications of RFID technology include: product distribution management, transportation systems, safety and security systems, etc. [0003] The RFID system includes: a reader 11 and two or more tags 12 each assigned a unique ID. When the reader 11 sends a command to request a response from a tag 12 within its reading ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00G06K19/07
CPCG06K7/0008G06K7/10019H04B2201/70715H04J13/004G06K19/0723G06K17/00
Inventor 阿特姆·芒特凯夫姜友植朴庆豪
Owner SAMSUNG ELECTRONICS CO LTD
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