SE383950B - ASYNCHRONOUS DEMODULATOR DEVICE - Google Patents

ASYNCHRONOUS DEMODULATOR DEVICE

Info

Publication number
SE383950B
SE383950B SE871472A SE871472A SE383950B SE 383950 B SE383950 B SE 383950B SE 871472 A SE871472 A SE 871472A SE 871472 A SE871472 A SE 871472A SE 383950 B SE383950 B SE 383950B
Authority
SE
Sweden
Prior art keywords
demodulator device
asynchronous demodulator
asynchronous
demodulator
Prior art date
Application number
SE871472A
Other languages
Swedish (sv)
Inventor
R O Barnes
Original Assignee
R O Barnes
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 R O Barnes filed Critical R O Barnes
Publication of SE383950B publication Critical patent/SE383950B/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1411—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse width coding
    • 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
    • G06K7/01—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
SE871472A 1971-07-01 1972-07-03 ASYNCHRONOUS DEMODULATOR DEVICE SE383950B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15879971A 1971-07-01 1971-07-01
US23725672A 1972-03-23 1972-03-23

Publications (1)

Publication Number Publication Date
SE383950B true SE383950B (en) 1976-04-05

Family

ID=26855397

Family Applications (1)

Application Number Title Priority Date Filing Date
SE871472A SE383950B (en) 1971-07-01 1972-07-03 ASYNCHRONOUS DEMODULATOR DEVICE

Country Status (7)

Country Link
CA (1) CA955685A (en)
DE (1) DE2230067A1 (en)
ES (1) ES404459A1 (en)
FR (1) FR2143920A1 (en)
GB (1) GB1400561A (en)
NL (1) NL7209003A (en)
SE (1) SE383950B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443170A1 (en) * 1974-11-08 1980-06-27 Ibm METHOD FOR ENCODING DATA IN F2F CODE, AND METHOD AND APPARATUS FOR INTERPRETATION OF SUCH DATA
FR2446561A1 (en) * 1974-12-31 1980-08-08 Ibm Reader for distorted two-frequency bar code data - compensates for print speed and acceleration e.g. of hand-held probe
GB8803504D0 (en) * 1988-02-16 1988-03-16 Mr Sensors Ltd Method of decoding recorded data
MY106779A (en) * 1990-09-07 1995-07-31 Mitsubishi Heavy Ind Ltd Magnetic recording method and circuit for toll road ticket.
US5708261A (en) * 1995-10-02 1998-01-13 Pitney Bowes Inc. Bar code decoding with speed compensation

Also Published As

Publication number Publication date
DE2230067A1 (en) 1973-01-11
ES404459A1 (en) 1976-03-01
NL7209003A (en) 1973-01-03
FR2143920A1 (en) 1973-02-09
GB1400561A (en) 1975-07-16
CA955685A (en) 1974-10-01

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