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DK135438C - Fremgangsmade til tilbagevirkende impulsmodulation samt modulator og demodulator til brug ved udovelse af fremgangsmaden - Google Patents

Fremgangsmade til tilbagevirkende impulsmodulation samt modulator og demodulator til brug ved udovelse af fremgangsmaden

Info

Publication number
DK135438C
DK135438C DK199971A DK199971A DK135438C DK 135438 C DK135438 C DK 135438C DK 199971 A DK199971 A DK 199971A DK 199971 A DK199971 A DK 199971A DK 135438 C DK135438 C DK 135438C
Authority
DK
Denmark
Prior art keywords
demodulator
modulator
procedures
procedure
impulse modulation
Prior art date
Application number
DK199971A
Other languages
Danish (da)
English (en)
Other versions
DK135438B (da
Inventor
E G Nassimbene
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of DK135438B publication Critical patent/DK135438B/da
Application granted granted Critical
Publication of DK135438C publication Critical patent/DK135438C/da

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
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DK199971A 1970-04-27 1971-04-26 Fremgangsmade til tilbagevirkende impulsmodulation samt modulator og demodulator til brug ved udovelse af fremgangsmaden DK135438C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3195970A 1970-04-27 1970-04-27

Publications (2)

Publication Number Publication Date
DK135438B DK135438B (da) 1977-04-25
DK135438C true DK135438C (da) 1977-10-10

Family

ID=21862326

Family Applications (1)

Application Number Title Priority Date Filing Date
DK199971A DK135438C (da) 1970-04-27 1971-04-26 Fremgangsmade til tilbagevirkende impulsmodulation samt modulator og demodulator til brug ved udovelse af fremgangsmaden

Country Status (13)

Country Link
US (1) US3708748A (de)
JP (2) JPS5037081B1 (de)
BE (1) BE766359A (de)
CA (2) CA958487A (de)
CH (1) CH528183A (de)
DE (1) DE2120096B2 (de)
DK (1) DK135438C (de)
ES (1) ES390388A1 (de)
FR (1) FR2092464A5 (de)
GB (1) GB1324223A (de)
NL (1) NL7103604A (de)
NO (1) NO136631C (de)
SE (1) SE369014B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791469A (fr) * 1971-11-16 1973-03-16 Monarch Marking Systems Inc Enregistrement code et procede et systeme d'interpretation de cet enregistrement
US3849632A (en) * 1972-06-19 1974-11-19 Pitney Bowes Inc Reading apparatus for optical bar codes
US3763351A (en) * 1972-07-14 1973-10-02 Ibm Bar code scanner
US3755654A (en) * 1972-07-31 1973-08-28 Ibm Digital decoding of retrospective pulse modulation
IT992697B (it) * 1972-09-07 1975-09-30 Ibm Circuito demudulatore perfezionato
US3832577A (en) * 1973-06-22 1974-08-27 Ibm Threshold extraction circuitry for noisy electric waveforms
US3932731A (en) * 1974-08-02 1976-01-13 Bell Telephone Laboratories, Incorporated Code converter
US3988729A (en) * 1975-01-29 1976-10-26 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Differential pulse code modulation
US3978319A (en) * 1975-10-29 1976-08-31 International Business Machines Corporation Universal self-clocking code reading method and apparatus
US4027267A (en) * 1976-06-01 1977-05-31 International Business Machines Corporation Method of decoding data content of F2F and phase shift encoded data streams
US4264934A (en) * 1979-04-23 1981-04-28 Bell Telephone Laboratories, Incorporated Rate adaptive writer for a card having a magnetizable surface
US4519054A (en) * 1982-06-03 1985-05-21 News Log International, Inc. Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby
JPS60180461U (ja) * 1984-05-10 1985-11-30 セノ−株式会社 腹背筋トレ−ニングマシン
DE3639252C1 (en) * 1986-11-17 1991-05-02 Honeywell Regelsysteme Gmbh Transmitting pulsed digital signals immune to interference - spacing at intervals to represent 1 and 0 and recovering at receiver by resettable time window
DE3640003C2 (de) * 1986-11-22 1996-07-25 Schunk Produktionsgesellschaft Verfahren und Vorrichtung zur Informationsübertragung, insbesondere für mobile Informationsträgersysteme
GB9621378D0 (en) * 1996-10-14 1996-12-04 Esselte Nv Tape printing apparatus
DE19927318A1 (de) * 1999-06-15 2000-12-21 Mannesmann Vdo Ag Verfahren zur drahtlosen Übertragung von Daten
GB2411800B (en) * 2004-03-04 2006-12-06 Philip John Connor Spread spectrum communication system
US11987930B2 (en) 2019-11-26 2024-05-21 Kornit Digital Ltd. Method for printing on colored synthetic fabrics utilizing a dye discharge material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427444A (en) * 1965-02-15 1969-02-11 Ibm Coding circuits for data transmission systems
GB1189982A (en) * 1966-06-15 1970-04-29 Xerox Corp Binary Encoding
US3510780A (en) * 1966-09-12 1970-05-05 Motorola Inc Two-state communication devices having combined clock and information signals
BE755662A (fr) * 1969-09-17 1971-02-15 Burroughs Corp Procede et appareil d'enregistrement et de detection magnetiques par modulation de frequence

Also Published As

Publication number Publication date
US3708748A (en) 1973-01-02
JPS5267222A (en) 1977-06-03
JPS5037081B1 (de) 1975-11-29
SE369014B (de) 1974-07-29
FR2092464A5 (de) 1972-01-21
GB1324223A (en) 1973-07-25
JPS5616462B2 (de) 1981-04-16
DK135438B (da) 1977-04-25
DE2120096B2 (de) 1972-09-28
CH528183A (de) 1972-09-15
NO136631B (de) 1977-06-27
CA1037607A (en) 1978-08-29
ES390388A1 (es) 1974-06-01
CA958487A (en) 1974-11-26
NO136631C (no) 1977-10-05
DE2120096A1 (de) 1971-11-11
NL7103604A (de) 1971-10-29
BE766359A (fr) 1971-09-16

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