CA951432A - Retrospective pulse modulation code demodulating circuit - Google Patents

Retrospective pulse modulation code demodulating circuit

Info

Publication number
CA951432A
CA951432A CA138,506,A CA138506A CA951432A CA 951432 A CA951432 A CA 951432A CA 138506 A CA138506 A CA 138506A CA 951432 A CA951432 A CA 951432A
Authority
CA
Canada
Prior art keywords
pulse modulation
modulation code
demodulating circuit
code demodulating
retrospective pulse
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
CA138,506,A
Other languages
English (en)
Other versions
CA138506S (en
Inventor
Thomas F. O'rourke
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA951432A publication Critical patent/CA951432A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
    • G06V30/2247—Characters composed of bars, e.g. CMC-7

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA138,506,A 1971-04-05 1972-05-29 Retrospective pulse modulation code demodulating circuit Expired CA951432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13123471A 1971-04-05 1971-04-05

Publications (1)

Publication Number Publication Date
CA951432A true CA951432A (en) 1974-07-16

Family

ID=22448531

Family Applications (1)

Application Number Title Priority Date Filing Date
CA138,506,A Expired CA951432A (en) 1971-04-05 1972-05-29 Retrospective pulse modulation code demodulating circuit

Country Status (7)

Country Link
US (1) US3755809A (it)
JP (1) JPS5126209B1 (it)
CA (1) CA951432A (it)
DE (1) DE2215043A1 (it)
FR (1) FR2132304B1 (it)
GB (2) GB1350737A (it)
IT (1) IT950718B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112134479B (zh) * 2020-09-24 2025-08-19 深圳市振华微电子有限公司 一种多路输入脉冲调制器电路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387275A (en) * 1965-04-20 1968-06-04 Air Force Usa Digital detection and storage system
FR1531644A (fr) * 1967-05-24 1968-07-05 Dispositif de transmission de données à vitesse de transmission accélérée
US3636317A (en) * 1969-04-28 1972-01-18 Charecogn Systems Inc Machine readable code track

Also Published As

Publication number Publication date
DE2215043A1 (de) 1972-10-12
JPS5126209B1 (it) 1976-08-05
US3755809A (en) 1973-08-28
FR2132304A1 (it) 1972-11-17
IT950718B (it) 1973-06-20
GB1350737A (en) 1974-04-24
GB1359288A (en) 1974-07-10
FR2132304B1 (it) 1976-08-06

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