BR7601699A - Circuito aperfeicoado para supressao de interferencias num radio-receptor de fm - Google Patents

Circuito aperfeicoado para supressao de interferencias num radio-receptor de fm

Info

Publication number
BR7601699A
BR7601699A BR7601699A BR7601699A BR7601699A BR 7601699 A BR7601699 A BR 7601699A BR 7601699 A BR7601699 A BR 7601699A BR 7601699 A BR7601699 A BR 7601699A BR 7601699 A BR7601699 A BR 7601699A
Authority
BR
Brazil
Prior art keywords
interferences
suppression
radio receiver
perfect circuit
perfect
Prior art date
Application number
BR7601699A
Other languages
English (en)
Inventor
H Liman
Original Assignee
Blaupunkt Werke Gmbh
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 Blaupunkt Werke Gmbh filed Critical Blaupunkt Werke Gmbh
Publication of BR7601699A publication Critical patent/BR7601699A/pt

Links

Classifications

    • 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
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
BR7601699A 1975-03-21 1976-03-19 Circuito aperfeicoado para supressao de interferencias num radio-receptor de fm BR7601699A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2512412A DE2512412C3 (de) 1975-03-21 1975-03-21 Schaltungsanordnung zum Unterdrücken von Störungen in einem FM-Rundfunkempfänger

Publications (1)

Publication Number Publication Date
BR7601699A true BR7601699A (pt) 1976-09-21

Family

ID=5942008

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7601699A BR7601699A (pt) 1975-03-21 1976-03-19 Circuito aperfeicoado para supressao de interferencias num radio-receptor de fm

Country Status (6)

Country Link
US (1) US4006419A (pt)
JP (1) JPS51139206A (pt)
BR (1) BR7601699A (pt)
DE (1) DE2512412C3 (pt)
FR (1) FR2305069A1 (pt)
ZA (1) ZA761697B (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114105A (en) * 1977-06-27 1978-09-12 Motorola, Inc. Noise blanker circuit
US4154980A (en) * 1977-08-29 1979-05-15 Motorola, Inc. Noise blanker with variable rate-shut-off and/or variable blanking threshold level
US4151471A (en) * 1977-11-04 1979-04-24 Burns Richard C System for reducing noise transients
NL7712536A (nl) * 1977-11-15 1979-05-17 Philips Nv Schakeling voor het onderdrukken van storingen tengevolge van krassen in een grammofoonplaat.
US4278901A (en) * 1978-06-09 1981-07-14 Sanyo Electric Co., Ltd. Pulsive component detecting apparatus
US4289981A (en) * 1978-06-21 1981-09-15 Sanyo Electric Co., Ltd. Pulsive component detecting apparatus
JPS6012365Y2 (ja) * 1978-10-20 1985-04-22 ヤマハ株式会社 受信機の雑音除去回路
CA1176336A (en) * 1979-04-23 1984-10-16 Motorola, Inc. Noise blanker which tracks average noise level
US4416024A (en) * 1979-12-17 1983-11-15 Sanyo Electric Co., Inc. Distortion reducing circuit in FM receiver
DE3220429A1 (de) * 1982-05-29 1983-12-01 Blaupunkt-Werke Gmbh, 3200 Hildesheim Ukw-stereoempfaenger mit stoerimpulsausstastung
JPH03259622A (ja) * 1990-03-09 1991-11-19 Pioneer Electron Corp ノイズ低減回路
JPH0488736U (pt) * 1991-07-11 1992-07-31
DE4305961A1 (de) * 1993-02-26 1994-09-01 Nokia Deutschland Gmbh Anordnung zur Erzeugung eines Rauschdetektorsignals
US6944301B1 (en) 1999-03-10 2005-09-13 Cirrus Logic, Inc. Method and apparatus for discriminating multipath and pulse noise distortions in radio receivers
US7683709B1 (en) 2008-06-05 2010-03-23 The United States Of America As Represented By The Secretary Of The Navy Low frequency power amplifier employing high frequency magnetic components

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284714A (en) * 1963-03-12 1966-11-08 Motorola Inc Noise reducing system
US3390339A (en) * 1964-06-01 1968-06-25 Rca Corp Pulse rate limiting circuit
US3699457A (en) * 1971-08-11 1972-10-17 Motorola Inc Noise blanker circuit including rate bias and rate shutoff circuitry and audio blanking

Also Published As

Publication number Publication date
DE2512412B2 (de) 1978-06-01
FR2305069B3 (pt) 1978-12-15
ZA761697B (en) 1977-03-30
FR2305069A1 (fr) 1976-10-15
JPS51139206A (en) 1976-12-01
DE2512412A1 (de) 1976-10-07
DE2512412C3 (de) 1979-02-01
US4006419A (en) 1977-02-01

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