GB1450081A - Detecting or processing electrical signals - Google Patents

Detecting or processing electrical signals

Info

Publication number
GB1450081A
GB1450081A GB4429273A GB4429273A GB1450081A GB 1450081 A GB1450081 A GB 1450081A GB 4429273 A GB4429273 A GB 4429273A GB 4429273 A GB4429273 A GB 4429273A GB 1450081 A GB1450081 A GB 1450081A
Authority
GB
United Kingdom
Prior art keywords
data signal
12msec
period
spurious
amplifier
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
GB4429273A
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 Corp
Original Assignee
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 Corp filed Critical Siemens Corp
Publication of GB1450081A publication Critical patent/GB1450081A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
    • H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
    • H03F3/393—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only with field-effect devices
    • 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
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7217—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise originating from a therapeutic or surgical apparatus, e.g. from a pacemaker
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Cardiology (AREA)
  • Electrotherapy Devices (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Noise Elimination (AREA)
GB4429273A 1972-09-20 1973-09-20 Detecting or processing electrical signals Expired GB1450081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2246100A DE2246100C3 (de) 1972-09-20 1972-09-20 Gerät zum Erfassen bzw. Verarbeiten von Meßnutzsignalen

Publications (1)

Publication Number Publication Date
GB1450081A true GB1450081A (en) 1976-09-22

Family

ID=5856829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4429273A Expired GB1450081A (en) 1972-09-20 1973-09-20 Detecting or processing electrical signals

Country Status (5)

Country Link
DE (1) DE2246100C3 (enrdf_load_stackoverflow)
FR (1) FR2200526B1 (enrdf_load_stackoverflow)
GB (1) GB1450081A (enrdf_load_stackoverflow)
NL (1) NL7312380A (enrdf_load_stackoverflow)
SE (1) SE395772B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31158E (en) 1976-06-23 1983-02-22 National Research Development Corporation Apparatus for indicating uterine activity in labor
CN114224302A (zh) * 2021-12-22 2022-03-25 上海贝瑞电子科技有限公司 一种多生理参数信号单通道同步采集装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305400A (en) * 1979-10-15 1981-12-15 Squibb Vitatek Inc. Respiration monitoring method and apparatus including cardio-vascular artifact detection
US4331157A (en) * 1980-07-09 1982-05-25 Stimtech, Inc. Mutually noninterfering transcutaneous nerve stimulation and patient monitoring
DE3818455A1 (de) * 1988-05-31 1989-12-14 Philips Patentverwaltung Spitzenspannungsmesser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31158E (en) 1976-06-23 1983-02-22 National Research Development Corporation Apparatus for indicating uterine activity in labor
CN114224302A (zh) * 2021-12-22 2022-03-25 上海贝瑞电子科技有限公司 一种多生理参数信号单通道同步采集装置
CN114224302B (zh) * 2021-12-22 2024-03-15 上海贝瑞电子科技有限公司 一种多生理参数信号单通道同步采集装置

Also Published As

Publication number Publication date
FR2200526A1 (enrdf_load_stackoverflow) 1974-04-19
DE2246100C3 (de) 1979-06-07
FR2200526B1 (enrdf_load_stackoverflow) 1979-04-27
DE2246100B2 (de) 1978-10-12
SE395772B (sv) 1977-08-22
NL7312380A (enrdf_load_stackoverflow) 1974-03-22
DE2246100A1 (de) 1974-03-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee