CA974607A - System for converting modulated signals to squarewave outputs - Google Patents

System for converting modulated signals to squarewave outputs

Info

Publication number
CA974607A
CA974607A CA156,507A CA156507A CA974607A CA 974607 A CA974607 A CA 974607A CA 156507 A CA156507 A CA 156507A CA 974607 A CA974607 A CA 974607A
Authority
CA
Canada
Prior art keywords
modulated signals
converting modulated
squarewave
outputs
squarewave outputs
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
CA156,507A
Other versions
CA156507S (en
Inventor
John R. Wilkinson
Ronald P. Knockeart
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of CA974607A publication Critical patent/CA974607A/en
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
    • G06K7/10861—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 sensing of data fields affixed to objects or articles, e.g. coded labels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H03D1/04—Modifications of demodulators to reduce interference by undesired signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
    • H03K5/084—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold modified by switching, e.g. by a periodic signal or by a signal in synchronism with the transitions of the output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
    • H03K5/086—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold generated by feedback
    • H03K5/088—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold generated by feedback modified by switching, e.g. by a periodic signal or by a signal in synchronism with the transitions of the output signal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Nonlinear Science (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Manipulation Of Pulses (AREA)
  • Facsimile Scanning Arrangements (AREA)
CA156,507A 1971-12-13 1972-11-15 System for converting modulated signals to squarewave outputs Expired CA974607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20721471A 1971-12-13 1971-12-13

Publications (1)

Publication Number Publication Date
CA974607A true CA974607A (en) 1975-09-16

Family

ID=22769638

Family Applications (1)

Application Number Title Priority Date Filing Date
CA156,507A Expired CA974607A (en) 1971-12-13 1972-11-15 System for converting modulated signals to squarewave outputs

Country Status (6)

Country Link
JP (1) JPS4866962A (en)
CA (1) CA974607A (en)
DE (1) DE2260022B2 (en)
FR (1) FR2163481B1 (en)
GB (1) GB1385040A (en)
IT (1) IT971788B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129131A (en) * 1975-05-01 1976-11-10 Omron Tateisi Electronics Co Analog-digital conversion circuit
JPS5818661B2 (en) * 1975-05-20 1983-04-14 セイコーエプソン株式会社 tagyomitrisouchi
JPS6010351B2 (en) * 1976-01-28 1985-03-16 株式会社デンソー Barcode reader
NL8300686A (en) * 1983-02-24 1984-09-17 Philips Nv DEVICE FOR CONVERTING AN ANALOGUE VIDEO SIGNAL TO A TWO-VALUE SIGNAL.
DE4220484C2 (en) * 1992-06-23 1997-06-19 Warner Music Mfg Europa Gmbh Barcode reading device

Also Published As

Publication number Publication date
IT971788B (en) 1974-05-10
DE2260022B2 (en) 1976-10-21
DE2260022A1 (en) 1973-06-20
FR2163481A1 (en) 1973-07-27
GB1385040A (en) 1975-02-26
FR2163481B1 (en) 1978-03-24
JPS4866962A (en) 1973-09-13

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