ES477602A1 - Procedimiento y dispositivo para la supresion de senales perturbadoras en una senal util. - Google Patents

Procedimiento y dispositivo para la supresion de senales perturbadoras en una senal util.

Info

Publication number
ES477602A1
ES477602A1 ES477602A ES477602A ES477602A1 ES 477602 A1 ES477602 A1 ES 477602A1 ES 477602 A ES477602 A ES 477602A ES 477602 A ES477602 A ES 477602A ES 477602 A1 ES477602 A1 ES 477602A1
Authority
ES
Spain
Prior art keywords
disturbing
hum
parasitic
useful signal
spikes
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
Application number
ES477602A
Other languages
English (en)
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of ES477602A1 publication Critical patent/ES477602A1/es
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/34Muting amplifier when no signal is present
    • H03G3/345Muting during a short period of time when noise pulses are detected, i.e. blanking
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30Input circuits therefor
    • A61B5/307Input circuits therefor specially adapted for particular uses
    • A61B5/308Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/901Suppression of noise in electric signal

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Noise Elimination (AREA)

Abstract

Procedimiento para la supresión de señales perturbadoras en una señal útil, pudiendo aparecer las señales perturbadoras como mezcla de picos de impulsos parásitos estrechos, de alta amplitud, y de zumbido perturbador, e identificandose por separado mediante dispositivos identificadores de picos de impulsos parasitos y/o de zumbido perturbados, y activandose con la identificación de dispositivos de supresión para suprimir los picos de impulsos parasitos y el zumbido perturbador en la señal útil, caracterizado porque una señal útil aparecida, con señales perturbadoras, superpuestas posiblemente, se conduce a un filtro de zumbido perturbador con el fin de extraer por filtrado particularmente el zumbido perturbador solo mientras por el dispositivo identificador para picos de impulsos parasitos estrechos, de alta amplitud, no se identifiquen tales picos de impulsos parasitos, y porque también solo en este caso la componente de zumbido perturbador extraída por filtrado, en el transcurso original,se superpone en contrasentido a la señal útil con el fin de compensar este zumbido perturbador superpuesto, porque sin embargo en el caso de que se identifique por el dispositivo identificador un pico de impulso parasito, el filtro de zumbido perturbador se desconecta de la señal de entrada y al mismo tiempo se conmuta a funcionamiento de oscilación propio , de manera que sigue oscilando con la amplitud y la frecuencia de la componente de zumbido perturbador seleccionada anteriormente, sin salto de fase, y porque esta oscilación producida artificialmente se superpone finalmente, al menos mientras dure la supresión del pico de impulso parasito, a la señal útil, para la compensación del zumbido perturbador.
ES477602A 1978-02-10 1979-02-09 Procedimiento y dispositivo para la supresion de senales perturbadoras en una senal util. Expired ES477602A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2805681A DE2805681C2 (de) 1978-02-10 1978-02-10 Schaltungsanordnung zur Unterdrückung von Störsignalen in einem Nutzsignal

Publications (1)

Publication Number Publication Date
ES477602A1 true ES477602A1 (es) 1979-11-01

Family

ID=6031638

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477602A Expired ES477602A1 (es) 1978-02-10 1979-02-09 Procedimiento y dispositivo para la supresion de senales perturbadoras en una senal util.

Country Status (5)

Country Link
US (1) US4243045A (es)
EP (1) EP0003588B1 (es)
DE (1) DE2805681C2 (es)
DK (1) DK538078A (es)
ES (1) ES477602A1 (es)

Families Citing this family (106)

* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
EP0003588B1 (de) 1981-11-25
DE2805681C2 (de) 1979-11-22
US4243045A (en) 1981-01-06
EP0003588A1 (de) 1979-08-22
DK538078A (da) 1979-08-11
DE2805681B1 (de) 1979-03-29

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