FR2368179A1 - Montage pour eliminer les impulsions parasites dans un recepteur a modulation d'amplitude - Google Patents

Montage pour eliminer les impulsions parasites dans un recepteur a modulation d'amplitude

Info

Publication number
FR2368179A1
FR2368179A1 FR7730582A FR7730582A FR2368179A1 FR 2368179 A1 FR2368179 A1 FR 2368179A1 FR 7730582 A FR7730582 A FR 7730582A FR 7730582 A FR7730582 A FR 7730582A FR 2368179 A1 FR2368179 A1 FR 2368179A1
Authority
FR
France
Prior art keywords
circuit
interference
gates
receiver
controlled
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.)
Granted
Application number
FR7730582A
Other languages
English (en)
Other versions
FR2368179B3 (fr
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.)
Blaupunkt Werke GmbH
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 FR2368179A1 publication Critical patent/FR2368179A1/fr
Application granted granted Critical
Publication of FR2368179B3 publication Critical patent/FR2368179B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • 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

Abstract

a. Montage pour éliminer les impulsions parasites dans un récepteur à modulation d'amplitude. b. Montage caractérisé en ce que la sortie d'un premier circuit porte prévu dans le chemin des signaux à fréquence intermédiaire est reliée, en passant par un circuit accumulateur et un bloc de sélection à fréquence intermédiaire, à l'entrée d'un second circuit porte également disposé dans le chemin des signaux à fréquence intermédiaire. c. L'invention s'applique à l'élimination des impulsions parasites dans un récepteur à modulation d'amplitude
FR7730582A 1976-10-13 1977-10-11 Montage pour eliminer les impulsions parasites dans un recepteur a modulation d'amplitude Granted FR2368179A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762646104 DE2646104A1 (de) 1976-10-13 1976-10-13 Schaltungsanordnung zur unterdrueckung von stoerimpulsen in einem am-empfangsgeraet

Publications (2)

Publication Number Publication Date
FR2368179A1 true FR2368179A1 (fr) 1978-05-12
FR2368179B3 FR2368179B3 (fr) 1980-07-18

Family

ID=5990325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730582A Granted FR2368179A1 (fr) 1976-10-13 1977-10-11 Montage pour eliminer les impulsions parasites dans un recepteur a modulation d'amplitude

Country Status (2)

Country Link
DE (1) DE2646104A1 (fr)
FR (1) FR2368179A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018702A1 (fr) * 1979-04-30 1980-11-12 Motorola, Inc. Circuit pour éliminer le bruit dans un récepteur radio
US4856084A (en) * 1988-02-16 1989-08-08 Sprague Electric Company Noise blanking system for an AM radio receiver

Also Published As

Publication number Publication date
FR2368179B3 (fr) 1980-07-18
DE2646104A1 (de) 1978-04-20

Similar Documents

Publication Publication Date Title
GB1236494A (en) Improvements in or relating to phase difference detectors
FR2368179A1 (fr) Montage pour eliminer les impulsions parasites dans un recepteur a modulation d'amplitude
EP0048638A3 (fr) Limiteur de fréquence maximale
SE338062B (fr)
JPS52137964A (en) Preset counter
JPS536080A (en) Frequency detection circuit
JPS5434644A (en) Input/output circiut
JPS52152104A (en) Multi-frequency signal receiver
JPS5354446A (en) Trap circuit
JPS5350697A (en) Noise generation preventing circuit
SU1598165A1 (ru) Делитель частоты следовани импульсов
JPS53117925A (en) Frequency control circuit
SU599370A1 (ru) Устройство тактовой синхронизации
SU425366A1 (ru) Устройство для защиты от импульсных помех
JPS5419623A (en) Digital input circuit
JPS544548A (en) Elastic surface-wave filter
SU661750A1 (ru) Устройство дл подавлени помех
JPS5364411A (en) Pulse noise suppression circuit for receiver
JPS532022A (en) Noise eliminator
JPS5621481A (en) Automatic gain control circuit
ES474946A1 (es) Perfeccionamientos en contadores electronicos digitales
JPS56128017A (en) Chattering preventing circuit
RU2004072C1 (ru) Частотное пороговое устройство
JPS57135526A (en) Frequency dividing circuit
JPS52124848A (en) Digital phase detection circuit

Legal Events

Date Code Title Description
ST Notification of lapse