FR1356613A - Circuit de correction pour phototransistor - Google Patents

Circuit de correction pour phototransistor

Info

Publication number
FR1356613A
FR1356613A FR934092A FR934092A FR1356613A FR 1356613 A FR1356613 A FR 1356613A FR 934092 A FR934092 A FR 934092A FR 934092 A FR934092 A FR 934092A FR 1356613 A FR1356613 A FR 1356613A
Authority
FR
France
Prior art keywords
phototransistor
correction circuit
correction
circuit
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
FR934092A
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.)
Associated Automation Ltd
Original Assignee
Associated Automation Ltd
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
Priority claimed from GB1759662A external-priority patent/GB1049777A/en
Application filed by Associated Automation Ltd filed Critical Associated Automation Ltd
Priority to FR934092A priority Critical patent/FR1356613A/fr
Application granted granted Critical
Publication of FR1356613A publication Critical patent/FR1356613A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR934092A 1962-05-08 1963-05-08 Circuit de correction pour phototransistor Expired FR1356613A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR934092A FR1356613A (fr) 1962-05-08 1963-05-08 Circuit de correction pour phototransistor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1759662A GB1049777A (en) 1962-05-08 1962-05-08 Pulse circuit with zero level compensation
FR934092A FR1356613A (fr) 1962-05-08 1963-05-08 Circuit de correction pour phototransistor

Publications (1)

Publication Number Publication Date
FR1356613A true FR1356613A (fr) 1964-03-27

Family

ID=26201204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR934092A Expired FR1356613A (fr) 1962-05-08 1963-05-08 Circuit de correction pour phototransistor

Country Status (1)

Country Link
FR (1) FR1356613A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070590A1 (fr) * 1981-07-21 1983-01-26 Océ-Nederland B.V. Circuit de détection photosensible

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070590A1 (fr) * 1981-07-21 1983-01-26 Océ-Nederland B.V. Circuit de détection photosensible

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