DE69731051D1 - Verfahren und System zur Frequenzunterdrückung - Google Patents

Verfahren und System zur Frequenzunterdrückung

Info

Publication number
DE69731051D1
DE69731051D1 DE69731051T DE69731051T DE69731051D1 DE 69731051 D1 DE69731051 D1 DE 69731051D1 DE 69731051 T DE69731051 T DE 69731051T DE 69731051 T DE69731051 T DE 69731051T DE 69731051 D1 DE69731051 D1 DE 69731051D1
Authority
DE
Germany
Prior art keywords
suppression method
frequency suppression
frequency
suppression
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69731051T
Other languages
English (en)
Other versions
DE69731051T2 (de
Inventor
John P Palmer
Mohammad A Asgari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xylon LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE69731051D1 publication Critical patent/DE69731051D1/de
Application granted granted Critical
Publication of DE69731051T2 publication Critical patent/DE69731051T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • H04B1/126—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means having multiple inputs, e.g. auxiliary antenna for receiving interfering signal
    • 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
    • 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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
DE69731051T 1996-09-18 1997-07-03 Verfahren und System zur Frequenzunterdrückung Expired - Lifetime DE69731051T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US714321 1996-09-18
US08/714,321 US5974301A (en) 1996-09-18 1996-09-18 Frequency cancelling system and method

Publications (2)

Publication Number Publication Date
DE69731051D1 true DE69731051D1 (de) 2004-11-11
DE69731051T2 DE69731051T2 (de) 2006-02-09

Family

ID=24869573

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731051T Expired - Lifetime DE69731051T2 (de) 1996-09-18 1997-07-03 Verfahren und System zur Frequenzunterdrückung

Country Status (4)

Country Link
US (1) US5974301A (de)
EP (1) EP0831594B1 (de)
CA (1) CA2215721C (de)
DE (1) DE69731051T2 (de)

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US6745018B1 (en) * 2000-09-29 2004-06-01 Intel Corporation Active cancellation of a wireless coupled transmit signal
US6539204B1 (en) * 2000-09-29 2003-03-25 Mobilian Corporation Analog active cancellation of a wireless coupled transmit signal
US6914949B2 (en) * 2000-10-13 2005-07-05 Time Domain Corporation Method and system for reducing potential interference in an impulse radio
US6529568B1 (en) 2000-10-13 2003-03-04 Time Domain Corporation Method and system for canceling interference in an impulse radio
US6915112B1 (en) * 2000-11-12 2005-07-05 Intel Corporation Active cancellation tuning to reduce a wireless coupled transmit signal
US6859641B2 (en) * 2001-06-21 2005-02-22 Applied Signal Technology, Inc. Adaptive canceller for frequency reuse systems
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TW563974U (en) * 2002-02-06 2003-11-21 Lite On Technology Corp Electricity saving device for user for user interface terminal device of cellular phone
US7809087B2 (en) * 2002-04-26 2010-10-05 Qualcomm, Incorporated Power detection techniques and discrete gain state selection for wireless networking
US7333798B2 (en) * 2002-08-08 2008-02-19 Value Added Communications, Inc. Telecommunication call management and monitoring system
WO2005076489A1 (ja) * 2004-02-04 2005-08-18 Brother Kogyo Kabushiki Kaisha 無線タグ通信装置
EP1630713B1 (de) * 2004-08-24 2020-05-20 Sony Deutschland GmbH Rückstrahlungsabfrageverfahren und Abfragegerät für ein moduliertes Rückstrahlungssystem
US20060098765A1 (en) * 2004-11-05 2006-05-11 Impinj, Inc. Interference cancellation in RFID systems
US7526266B2 (en) * 2005-02-14 2009-04-28 Intelleflex Corporation Adaptive coherent RFID reader carrier cancellation
JP4600114B2 (ja) * 2005-03-28 2010-12-15 ブラザー工業株式会社 無線タグ通信装置
WO2007012893A1 (en) * 2005-07-25 2007-02-01 Siemens Aktiengesellschaft Transceiver apparatus
KR100746747B1 (ko) * 2006-02-06 2007-08-06 삼성전자주식회사 Ｒｆｉｄ 리더
WO2007127948A2 (en) 2006-04-27 2007-11-08 Sirit Technologies Inc. Adjusting parameters associated with leakage signals
TWI314402B (en) * 2006-05-23 2009-09-01 Mstar Semiconductor Inc Signal transmitting and receiving apparatus capable of preventing the receiving end from saturating
US7894779B2 (en) * 2006-06-22 2011-02-22 Honeywell International Inc. Apparatus and method for transmitting and receiving multiple radio signals over a single antenna
KR101184702B1 (ko) * 2006-09-21 2012-09-20 삼성전자주식회사 ｍＲＦＩＤ 리더기
US8406721B2 (en) * 2006-09-29 2013-03-26 Broadcom Corporation Method and system for reusing antennas in a multi-antenna system while operating in a narrowband receiving mode
US7634246B2 (en) * 2006-09-29 2009-12-15 Broadcom Corporation Method and system for blocker attenuation using multiple receive antennas
US20080079547A1 (en) * 2006-09-29 2008-04-03 Sensormatic Electronics Corporation Radio frequency identification reader having a signal canceller and method thereof
US8135348B2 (en) * 2007-03-27 2012-03-13 Qualcomm, Incorporated Rejection of transmit signal leakage in wireless communication device
US7932813B2 (en) * 2007-05-03 2011-04-26 Rf Ideas, Inc. Sampling to obtain signal from RFID card
US8248212B2 (en) 2007-05-24 2012-08-21 Sirit Inc. Pipelining processes in a RF reader
US8451094B2 (en) * 2008-02-06 2013-05-28 Intermec Ip Corp. Phase hopping to reduce interference and improve radio frequency identification (RFID) tag throughput
US8427316B2 (en) 2008-03-20 2013-04-23 3M Innovative Properties Company Detecting tampered with radio frequency identification tags
US8446256B2 (en) 2008-05-19 2013-05-21 Sirit Technologies Inc. Multiplexing radio frequency signals
US8169312B2 (en) 2009-01-09 2012-05-01 Sirit Inc. Determining speeds of radio frequency tags
US8331894B2 (en) * 2009-01-13 2012-12-11 Mediatek Inc. Method for performing active jammer suppression on electronic device, and associated apparatus
US8416079B2 (en) 2009-06-02 2013-04-09 3M Innovative Properties Company Switching radio frequency identification (RFID) tags
US8948687B2 (en) * 2009-12-11 2015-02-03 Andrew Llc System and method for determining and controlling gain margin in an RF repeater
KR101378282B1 (ko) * 2010-08-23 2014-03-25 한국전자통신연구원 Ｒｆｉｄ 리더기의 수신감도 개선 장치 및 방법
US10062025B2 (en) 2012-03-09 2018-08-28 Neology, Inc. Switchable RFID tag
US10305575B2 (en) * 2013-01-08 2019-05-28 Advanced Rf Technologies, Inc. Mobile telecommunication repeater for canceling feedback signals
US9479214B2 (en) 2013-11-25 2016-10-25 Raytheon Company Wideband active radio frequency interference cancellation system
US9553712B2 (en) * 2013-11-25 2017-01-24 Raytheon Company Feed-forward canceller
WO2019169088A1 (en) 2018-03-01 2019-09-06 Commscope Technologies Llc Methods and apparatuses for measuring the distance to a passive intermodulation source

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JPS5853805B2 (ja) * 1979-02-15 1983-12-01 日本ビクター株式会社 パイロット信号の除去装置
US4317217A (en) * 1980-08-11 1982-02-23 Motorola, Inc. Tag generator for a same-frequency repeater
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US4459474A (en) * 1981-05-18 1984-07-10 Walton Charles A Identification system with separation and direction capability and improved noise rejection
JPH0622352B2 (ja) * 1988-10-12 1994-03-23 勝敏 嶺 ノイズ除去方法
US4989262A (en) * 1988-11-28 1991-01-29 Nec Corporation Demodulator with multiple interference cancellers responsive to correlations between undesired signals and error signals
US5109532A (en) * 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
CA2054049C (en) * 1990-11-05 1996-02-06 Henry L. Kazecki Apparatus and method for removing distortion in a received signal
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Also Published As

Publication number Publication date
EP0831594B1 (de) 2004-10-06
US5974301A (en) 1999-10-26
EP0831594A3 (de) 2002-05-02
CA2215721A1 (en) 1998-03-18
EP0831594A2 (de) 1998-03-25
DE69731051T2 (de) 2006-02-09
CA2215721C (en) 2001-05-29

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Legal Events

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8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MOBILE TECHNICS LLC, LAS VEGAS, NEV., US