NO20071580L - Undertrykke et sendt signal i en mottaker for en RFID skriver/leser-enhet - Google Patents

Undertrykke et sendt signal i en mottaker for en RFID skriver/leser-enhet

Info

Publication number
NO20071580L
NO20071580L NO20071580A NO20071580A NO20071580L NO 20071580 L NO20071580 L NO 20071580L NO 20071580 A NO20071580 A NO 20071580A NO 20071580 A NO20071580 A NO 20071580A NO 20071580 L NO20071580 L NO 20071580L
Authority
NO
Norway
Prior art keywords
signal
receiver
write unit
rfid read
suppress
Prior art date
Application number
NO20071580A
Other languages
English (en)
Inventor
Roland Kueng
Original Assignee
Elektrobit Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elektrobit Ag filed Critical Elektrobit Ag
Publication of NO20071580L publication Critical patent/NO20071580L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Vehicle Body Suspensions (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Eye Examination Apparatus (AREA)
  • Noise Elimination (AREA)

Abstract

Et bæresignal (21) som er injisert av en sender (31) irm i en mottaker (30) genererer kryssmoduleringer i en RFID-lese/skrive-enhet (19), og krever en høy dynamisk utførelse av komponentene. I henhold til oppfinnelsen er det brukt en arkitektur med digital signalprosessering (1). Ved å generere et korreksjonssignal med en digital signalprosessor (6) etterfiilgt av en D/A-omformer (20) og ved en lineærmodulator (14) er det interfererende signalet kompensert for i mottakeren (30). Et brytbart dempeledd (13) og genereringen av et tilleggssignal (22) kobler irm en AC-kobling på irmsiden av mottakeren (30). De forhindrer overstyring av mottaker-HF-delen (18) og reduserer kravet til A/D- omformerens (2) dynamisk ytelse.
NO20071580A 2004-10-08 2007-03-26 Undertrykke et sendt signal i en mottaker for en RFID skriver/leser-enhet NO20071580L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH16602004 2004-10-08
PCT/CH2005/000495 WO2006037241A1 (de) 2004-10-08 2005-08-24 Verfahren und vorrichtung zur unterdrückung eines sendesignals in einem empfänger eines rfid schreib-/lesegeräts

Publications (1)

Publication Number Publication Date
NO20071580L true NO20071580L (no) 2007-03-26

Family

ID=35207844

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20071580A NO20071580L (no) 2004-10-08 2007-03-26 Undertrykke et sendt signal i en mottaker for en RFID skriver/leser-enhet

Country Status (6)

Country Link
US (1) US7456747B2 (no)
EP (1) EP1810210B1 (no)
AT (1) ATE400857T1 (no)
DE (1) DE502005004676D1 (no)
NO (1) NO20071580L (no)
WO (1) WO2006037241A1 (no)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100653199B1 (ko) * 2005-11-18 2006-12-05 삼성전자주식회사 로컬 신호를 이용하여 수신 신호에서 리키지 성분을제거하는 ｒｆ 수신 장치 및 방법
KR100653642B1 (ko) * 2005-11-18 2006-12-06 삼성전자주식회사 Ｄｃ 옵셋 제거된 기저 대역 신호를 이용하는 ｒｆ 수신장치 및 방법
KR100653641B1 (ko) 2005-11-22 2006-12-06 삼성전자주식회사 수신 신호에서 리키지 성분을 완전히 제거하는 ｒｆ 수신장치 및 방법
FI119304B (fi) * 2006-08-24 2008-09-30 Idesco Oy Komponentin epäsovituksen havaitseminen RFID-lukijassa
FI119083B (fi) * 2006-08-24 2008-07-15 Idesco Oy RFID-lukija antennin epäsovituksen kompensoinnilla
US20080079547A1 (en) * 2006-09-29 2008-04-03 Sensormatic Electronics Corporation Radio frequency identification reader having a signal canceller and method thereof
WO2008092283A1 (de) 2007-01-29 2008-08-07 Elektrobit Wireless Communicatons Ltd. Vorrichtung und Verfahren zur Unterdrückung eines Sendesignals in einem Empfänger eines RFID Seh reib-/ Lesegeräts
KR100954059B1 (ko) * 2008-07-31 2010-04-20 한국전자통신연구원 Ｒｆｉｄ 리더의 송신 누설 신호 억압 장치 및 방법
US8064847B2 (en) * 2009-04-20 2011-11-22 Honeywell International Inc. Apparatus and method for isolation and power handling in a radio frequency switch
WO2012161632A1 (en) * 2011-05-20 2012-11-29 Telefonaktiebolaget L M Ericsson (Publ) Dynamic cancellation of passive intermodulation interference
WO2013044949A1 (en) * 2011-09-28 2013-04-04 Telefonaktiebolaget L M Ericsson (Publ) Transmitter having an embedded zero amplitude differential phase tracking signal and corresponding receiver
US8908817B1 (en) 2011-09-28 2014-12-09 Telefonaktiebolaget L M Ericsson (Publ) Differential phase tracking in the presence of unknown interference
US10062025B2 (en) 2012-03-09 2018-08-28 Neology, Inc. Switchable RFID tag
DE102013200033B4 (de) * 2012-10-10 2023-06-15 Rohde & Schwarz GmbH & Co. Kommanditgesellschaft Verfahren und System zur Bestimmung von Streuparametern eines frequenzumsetzenden Messobjekts
DE102016216071B4 (de) 2016-08-26 2021-09-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Konzept zur Performancesteigerung in Backscatter- oder Last-Systemen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594479A (en) * 1983-08-18 1986-06-10 At&T Information Systems Inc. Bell Telephone Laboratories, Inc. Fast start-up of adaptive echo canceler or echo measurement device
GB9423027D0 (en) * 1994-11-15 1995-01-04 Univ Bristol Full-duplex radio transmitter/receiver
US5691978A (en) * 1995-04-07 1997-11-25 Signal Science, Inc. Self-cancelling full-duplex RF communication system
US5986570A (en) * 1997-09-03 1999-11-16 Micron Communications, Inc. Method for resolving signal collisions between multiple RFID transponders in a field
US6192222B1 (en) * 1998-09-03 2001-02-20 Micron Technology, Inc. Backscatter communication systems, interrogators, methods of communicating in a backscatter system, and backscatter communication methods
WO2000021204A1 (en) * 1998-10-06 2000-04-13 Crosslink, Inc. A system for reducing transmitter cross-talk in receive part of a rf transceiver
US7123591B1 (en) * 1999-03-03 2006-10-17 Siemens Aktiengesellschaft Frequency multiplex transmitter and method for eliminating crosstalk
AU2001286635A1 (en) * 2000-08-22 2002-03-04 Novatel Wireless, Inc. Method and apparatus for transmitter noise cancellation in an rf communications system
US20040106381A1 (en) * 2002-09-06 2004-06-03 Engim Incorporated Transmit signal cancellation in wireless receivers

Also Published As

Publication number Publication date
ATE400857T1 (de) 2008-07-15
US7456747B2 (en) 2008-11-25
WO2006037241A1 (de) 2006-04-13
EP1810210B1 (de) 2008-07-09
EP1810210A1 (de) 2007-07-25
DE502005004676D1 (de) 2008-08-21
US20070194887A1 (en) 2007-08-23

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