KR100775214B1 - Rfid 시스템 - Google Patents
Rfid 시스템 Download PDFInfo
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- KR100775214B1 KR100775214B1 KR1020050127405A KR20050127405A KR100775214B1 KR 100775214 B1 KR100775214 B1 KR 100775214B1 KR 1020050127405 A KR1020050127405 A KR 1020050127405A KR 20050127405 A KR20050127405 A KR 20050127405A KR 100775214 B1 KR100775214 B1 KR 100775214B1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
- G06K7/10039—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10069—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the frequency domain, e.g. by hopping from one frequency to the other
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
Claims (12)
- 태그 및 리더로 이루어지는 RFID 시스템에 있어서,상기 태그 및 상기 리더가 송수신하는 신호는 OFDM(Orthogonal Frequency Division Multiplexing) 신호이며,상기 태그는 상기 OFDM 신호를 통하여 상기 리더로부터 정보요청신호가 수신되면 태그식별정보를 생성하여 상기 리더로 전달하고,상기 리더는 상기 OFDM 신호를 통하여 상기 정보요청신호를 상기 태그로 전달하고, 상기 태그로부터 수신된 상기 태그식별정보를 해석하는 것을 특징으로 하는 RFID 시스템.
- 제1항에 있어서,상기 OFDM 신호는 단위 시간을 이루는 다수개의 동기화된 프레임으로 구성되는 것을 특징으로 하는 RFID 시스템.
- 제 1항에 있어서,상기 OFDM 신호는 정보가 담겨진 에너지 공급 신호이고,상기 태그는 상기 OFDM 신호를 통하여 전원을 공급받는 것을 특징으로 하는 RFID 시스템.
- 제 1항에 있어서, 상기 OFDM신호는"프레임 개수×기호 개수×소정 시간 단위"의 계산값이 상수가 되도록 상기 프레임 개수, 상기 기호 개수 및 상기 소정 시간 단위 수치가 조정되는 것을 특징으로 하는 RFID 시스템.
- 삭제
- 제 1항에 있어서,상기 OFDM신호가 시분할되어 하위 주파수 채널(frequency subchannel)이 설정되고, 상기 태그는 상기 설정된 주파수 채널별로 할당되는 것을 특징으로 하는 RFID 시스템.
- 제 1항에 있어서, 상기 태그는상기 리더의 안테나 배열에 따라 구분되는 공간 별로 상기 리더와의 통신 그룹이 할당되는 것을 특징으로 하는 RFID 시스템.
- 제 1항에 있어서, 상기 태그는상기 OFDM 신호 프레임 하나에 한개씩 자신의 태그식별정보를 담아 전송하는 것을 특징으로 하는 RFID 시스템.
- 제 4항에 있어서, 상기 소정 시간 단위는50 μs 내지 70 μs 범위의 수치인 것을 특징으로 하는 RFID 시스템.
- 제1항에 있어서, 상기 태그는상기 정보요청신호가 수신되거나 상기 태그식별정보가 송출되는 안테나;상기 정보요청신호를 디지털 데이터로 복조하는 복조부;통신프로토콜을 구비하여 상기 리더와의 무선통신을 제어하고, 상기 복조된 정보요청신호의 코드를 분석하여 상기 태그식별정보를 생성하는 제어부;상기 태그식별정보를 무선신호로 변조하여 상기 안테나로 전달하는 변조부; 및상기 복조부, 제어부 및 변조부로 전원을 공급하는 전원부를 포함하여 이루어지는 것을 특징으로 하는 RFID 시스템.
- 제1항에 있어서, 상기 리더는상기 정보요청신호가 송출되거나 상기 태그식별정보가 수신되는 안테나;상기 태그식별정보를 디지털데이터로 복조하는 복조부;통신프로토콜을 구비하여 상기 태그와의 무선통신을 제어하고, 상기 복조된 태그식별정보의 코드를 분석하며, 상기 정보요청신호를 생성하는 제어부; 및상기 정보요청신호를 무선신호로 변조하여 상기 안테나로 전달하는 변조부를 포함하여 이루어지는 것을 특징으로 하는 RFID 시스템.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050127405A KR100775214B1 (ko) | 2005-12-22 | 2005-12-22 | Rfid 시스템 |
EP06835329A EP1964029B1 (en) | 2005-12-22 | 2006-12-21 | Rfid system |
PCT/KR2006/005625 WO2007073099A1 (en) | 2005-12-22 | 2006-12-21 | Rfid system |
CN2006800487938A CN101346734B (zh) | 2005-12-22 | 2006-12-21 | 射频识别*** |
US12/158,291 US20080290997A1 (en) | 2005-12-22 | 2006-12-21 | Rfid System |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050127405A KR100775214B1 (ko) | 2005-12-22 | 2005-12-22 | Rfid 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070098958A KR20070098958A (ko) | 2007-10-08 |
KR100775214B1 true KR100775214B1 (ko) | 2007-11-12 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020050127405A KR100775214B1 (ko) | 2005-12-22 | 2005-12-22 | Rfid 시스템 |
Country Status (2)
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KR (1) | KR100775214B1 (ko) |
CN (1) | CN101346734B (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100828897B1 (ko) * | 2006-12-15 | 2008-05-09 | 엘지이노텍 주식회사 | 알에프 아이디 시스템 |
CN101499143B (zh) * | 2009-03-06 | 2012-08-22 | 上海复旦微电子股份有限公司 | 射频身份识别标签及其中的时钟发生方法 |
CN109614832B (zh) * | 2018-11-20 | 2022-02-18 | 深圳市航天华拓科技有限公司 | 射频识别阅读器读卡方法、装置和计算机可读存储介质 |
JP7478550B2 (ja) * | 2020-02-25 | 2024-05-07 | 東芝テック株式会社 | リーダ |
CN112001460B (zh) * | 2020-07-16 | 2022-04-01 | 中国科学院微电子研究所 | 信号处理方法以及装置、rfid*** |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030040275A1 (en) | 2001-08-27 | 2003-02-27 | Raj Bridgelall | Dual use of fft circuity in imagers and transceivers |
US20040254829A1 (en) | 2003-05-13 | 2004-12-16 | Tripp Jeffrey William | Wireless access data sharing system |
KR20050026938A (ko) * | 2004-12-30 | 2005-03-16 | 가부시키가이샤 히타치세이사쿠쇼 | 이동체 식별 장치의 질문기 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030095725A (ko) * | 2002-06-14 | 2003-12-24 | 삼성전자주식회사 | 오에프디엠 심볼을 안정적으로 전송할 수 있는 오에프디엠송신기 |
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- 2005-12-22 KR KR1020050127405A patent/KR100775214B1/ko active IP Right Grant
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- 2006-12-21 CN CN2006800487938A patent/CN101346734B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030040275A1 (en) | 2001-08-27 | 2003-02-27 | Raj Bridgelall | Dual use of fft circuity in imagers and transceivers |
US20040254829A1 (en) | 2003-05-13 | 2004-12-16 | Tripp Jeffrey William | Wireless access data sharing system |
KR20050026938A (ko) * | 2004-12-30 | 2005-03-16 | 가부시키가이샤 히타치세이사쿠쇼 | 이동체 식별 장치의 질문기 |
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Publication number | Publication date |
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KR20070098958A (ko) | 2007-10-08 |
CN101346734B (zh) | 2010-10-27 |
CN101346734A (zh) | 2009-01-14 |
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