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DE69428192D1 - Schaltung zur unterdrückung von fm-rauschen - Google Patents

Schaltung zur unterdrückung von fm-rauschen

Info

Publication number
DE69428192D1
DE69428192D1 DE69428192T DE69428192T DE69428192D1 DE 69428192 D1 DE69428192 D1 DE 69428192D1 DE 69428192 T DE69428192 T DE 69428192T DE 69428192 T DE69428192 T DE 69428192T DE 69428192 D1 DE69428192 D1 DE 69428192D1
Authority
DE
Germany
Prior art keywords
noise
circuit
reduce
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
DE69428192T
Other languages
English (en)
Other versions
DE69428192T2 (de
Inventor
Kazuhiro Daikoku
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Application granted granted Critical
Publication of DE69428192D1 publication Critical patent/DE69428192D1/de
Publication of DE69428192T2 publication Critical patent/DE69428192T2/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Radio Transmission System (AREA)
  • Circuits Of Receivers In General (AREA)
DE69428192T 1993-02-05 1994-02-04 Schaltung zur unterdrückung von fm-rauschen Expired - Lifetime DE69428192T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1898793 1993-02-05
PCT/JP1994/000169 WO1994018757A1 (en) 1993-02-05 1994-02-04 Circuit for removing random fm noise

Publications (2)

Publication Number Publication Date
DE69428192D1 true DE69428192D1 (de) 2001-10-11
DE69428192T2 DE69428192T2 (de) 2002-06-27

Family

ID=11986940

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69428192T Expired - Lifetime DE69428192T2 (de) 1993-02-05 1994-02-04 Schaltung zur unterdrückung von fm-rauschen

Country Status (9)

Country Link
US (1) US5678218A (de)
EP (1) EP0684703B1 (de)
KR (1) KR100332607B1 (de)
CN (2) CN1037057C (de)
AU (1) AU680468B2 (de)
CA (1) CA2155432C (de)
DE (1) DE69428192T2 (de)
DK (1) DK0684703T3 (de)
WO (1) WO1994018757A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083637C (zh) * 1996-10-11 2002-04-24 齐尼思电子公司 用于译码有噪声编码数据传输信号的接收器
US6195537B1 (en) * 1997-09-25 2001-02-27 Lucent Technologies, Inc. Method and apparatus for strong signal suppression in multi-carrier signals
US6269241B1 (en) * 1997-11-26 2001-07-31 Aerocomm, Inc. Ultra-Q filter
US6078801A (en) * 1998-01-05 2000-06-20 Motorola, Inc. Method and apparatus for optimized post detection filtering for simulcast receivers
US6512402B2 (en) * 2001-03-30 2003-01-28 Intel Corporation Method and apparatus for shifting the frequency spectrum of noise signals
US20030103578A1 (en) * 2001-12-04 2003-06-05 Yeh Alex C. Method and system for determining tap gain values for a transmit frequency domain equalizer to achieve unity power gain
EP1557962A4 (de) * 2002-10-28 2011-06-15 Mitsubishi Electric Corp Diversity-empfangseinrichtung und diversity-empfangsverfahren

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911219B2 (ja) * 1979-11-29 1984-03-14 松下電器産業株式会社 Ｆｍマルチパス歪低減装置
US4403348A (en) * 1981-09-21 1983-09-06 Bell Telephone Laboratories, Incorporated Single sideband receiver with intersyllabic gain correction limit control
US4596046A (en) * 1984-10-01 1986-06-17 Motorola, Inc. Split loop AFC system for a SSB receiver
EP0184923B1 (de) * 1984-12-10 1992-03-04 Nippon Telegraph And Telephone Corporation Einseitenbandübertragungssystem
DE3446078A1 (de) * 1984-12-18 1986-06-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Fm-stereoempfaenger
JPS6348018A (ja) * 1986-08-18 1988-02-29 Fujitsu Ltd Ｆｍ干渉抑圧回路
JPS6442535A (en) * 1987-08-10 1989-02-14 Nissan Motor Production of cast-in member
JPH0787389B2 (ja) * 1988-02-29 1995-09-20 日本電信電話株式会社 Ｓｓｂ受信装置
JPH0750861B2 (ja) * 1988-08-10 1995-05-31 パイオニア株式会社 Ｆｍ受信機のパルス性ノイズ抑圧装置
US4901150A (en) * 1988-11-22 1990-02-13 Sony Corporation Automatic noise reduction for individual frequency components of a signal
EP0371433B1 (de) * 1988-11-28 1994-10-12 Nec Corporation Demodulator mit Mehrfachinterferenzunterdrückung durch Korrelation zwischen unerwünschten Signalen und Fehlersignalen
US5031193A (en) * 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals
JPH0736527B2 (ja) * 1990-03-19 1995-04-19 日本電信電話株式会社 無線通信装置
US5410750A (en) * 1992-02-24 1995-04-25 Raytheon Company Interference suppressor for a radio receiver
US5300838A (en) * 1992-05-20 1994-04-05 General Electric Co. Agile bandpass filter

Also Published As

Publication number Publication date
CN1037057C (zh) 1998-01-14
EP0684703B1 (de) 2001-09-05
CA2155432A1 (en) 1994-08-18
DE69428192T2 (de) 2002-06-27
US5678218A (en) 1997-10-14
EP0684703A1 (de) 1995-11-29
CN1091328C (zh) 2002-09-18
DK0684703T3 (da) 2001-12-27
CN1117777A (zh) 1996-02-28
WO1994018757A1 (en) 1994-08-18
KR960700576A (ko) 1996-01-20
KR100332607B1 (ko) 2002-10-04
AU680468B2 (en) 1997-07-31
EP0684703A4 (de) 1998-12-23
CN1175136A (zh) 1998-03-04
AU5979294A (en) 1994-08-29
CA2155432C (en) 2003-07-29

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE KNOBLAUCH UND KNOBLAUCH, 60322 FRANK