FR2373216A7 - PROTECTION CIRCUIT FOR A SIGNAL CONVERSION SYSTEM, SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT, AND DEVICE WITH A SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT - Google Patents

PROTECTION CIRCUIT FOR A SIGNAL CONVERSION SYSTEM, SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT, AND DEVICE WITH A SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT

Info

Publication number
FR2373216A7
FR2373216A7 FR7736679A FR7736679A FR2373216A7 FR 2373216 A7 FR2373216 A7 FR 2373216A7 FR 7736679 A FR7736679 A FR 7736679A FR 7736679 A FR7736679 A FR 7736679A FR 2373216 A7 FR2373216 A7 FR 2373216A7
Authority
FR
France
Prior art keywords
protection circuit
signal conversion
conversion system
system equipped
time interval
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
FR7736679A
Other languages
French (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR2373216A7 publication Critical patent/FR2373216A7/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Safety Devices In Control Systems (AREA)
  • Image Analysis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Ce circuit de protection sert au contrôle périodique d'un multiplexeur qui explore périodiquement des signaux analogiques, numérise ces signaux et les enregistre sous forme binaire dans un registre. L'idée de base de l'invention est que l'exploration, la numérisation et l'emmagasinage doivent avoir lieu avant l'écoulement d'un intervalle de temps déterminé. Par conséquent, les variations du contenu du registre en dehors de cet intervalle de temps sont erronées et signalées. Application à l'appareillage radioscopique utilisé en médecine.This protection circuit is used for the periodic control of a multiplexer which periodically scans analog signals, digitizes these signals and records them in binary form in a register. The basic idea of the invention is that exploration, digitization and storage must take place before the elapse of a determined time interval. Therefore, changes in the contents of the register outside this time interval are erroneous and reported. Application to the fluoroscopic apparatus used in medicine.

FR7736679A 1976-12-06 1977-12-06 PROTECTION CIRCUIT FOR A SIGNAL CONVERSION SYSTEM, SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT, AND DEVICE WITH A SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT Expired FR2373216A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7613533A NL7613533A (en) 1976-12-06 1976-12-06 SECURITY CIRCUIT FOR A SIGNAL CONVERSION SYSTEM, SIGNAL CONVERSION SYSTEM EQUIPPED WITH A SECURITY CIRCUIT AND EQUIPMENT WITH A SIGNAL CONVERSION SYSTEM EQUIPPED WITH A SECURITY CIRCUIT.

Publications (1)

Publication Number Publication Date
FR2373216A7 true FR2373216A7 (en) 1978-06-30

Family

ID=19827335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736679A Expired FR2373216A7 (en) 1976-12-06 1977-12-06 PROTECTION CIRCUIT FOR A SIGNAL CONVERSION SYSTEM, SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT, AND DEVICE WITH A SIGNAL CONVERSION SYSTEM EQUIPPED WITH SUCH A PROTECTION CIRCUIT

Country Status (5)

Country Link
JP (1) JPS5370654A (en)
DE (1) DE2752251A1 (en)
FR (1) FR2373216A7 (en)
GB (1) GB1596537A (en)
NL (1) NL7613533A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041578A1 (en) * 1979-12-12 1981-12-16 Mitsubishi Denki Kabushiki Kaisha Device for monitoring abnormality in sampled signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041578A1 (en) * 1979-12-12 1981-12-16 Mitsubishi Denki Kabushiki Kaisha Device for monitoring abnormality in sampled signals
EP0041578A4 (en) * 1979-12-12 1984-03-06 Mitsubishi Electric Corp Device for monitoring abnormality in sampled signals.

Also Published As

Publication number Publication date
JPS5370654A (en) 1978-06-23
DE2752251A1 (en) 1978-06-08
GB1596537A (en) 1981-08-26
NL7613533A (en) 1978-06-08

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Legal Events

Date Code Title Description
ST Notification of lapse