CA1140998A - Codage exempt de composante continue pour transmission de donnees avec preanalyse limitee - Google Patents

Codage exempt de composante continue pour transmission de donnees avec preanalyse limitee

Info

Publication number
CA1140998A
CA1140998A CA000335059A CA335059A CA1140998A CA 1140998 A CA1140998 A CA 1140998A CA 000335059 A CA000335059 A CA 000335059A CA 335059 A CA335059 A CA 335059A CA 1140998 A CA1140998 A CA 1140998A
Authority
CA
Canada
Prior art keywords
bit
sequence
signal
transition
cell
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
CA000335059A
Other languages
English (en)
Inventor
Jerry W. Miller
Paul J. Rudnick
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Application granted granted Critical
Publication of CA1140998A publication Critical patent/CA1140998A/fr
Expired legal-status Critical Current

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
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller 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
    • H04L25/4906—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 using binary codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
CA000335059A 1978-10-05 1979-09-05 Codage exempt de composante continue pour transmission de donnees avec preanalyse limitee Expired CA1140998A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94916178A 1978-10-05 1978-10-05
US949,161 1978-10-05

Publications (1)

Publication Number Publication Date
CA1140998A true CA1140998A (fr) 1983-02-08

Family

ID=25488672

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000335059A Expired CA1140998A (fr) 1978-10-05 1979-09-05 Codage exempt de composante continue pour transmission de donnees avec preanalyse limitee

Country Status (8)

Country Link
JP (1) JPS55159659A (fr)
BE (1) BE879124A (fr)
CA (1) CA1140998A (fr)
DE (1) DE2940488C2 (fr)
FR (1) FR2438388A1 (fr)
GB (1) GB2032228B (fr)
IT (1) IT1164050B (fr)
NL (1) NL7907383A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531289A2 (fr) * 1976-03-19 1984-02-03 Ampex Appareil et procede de codage sans courant continu pour systeme de transmission de donnees
JPS601956A (ja) * 1983-06-17 1985-01-08 Sony Corp デイジタルデ−タの変調方法
FR2571910B1 (fr) * 1984-10-16 1987-01-09 Bull Sa Procede et dispositif de codage et de decodage pour la transmission serie de donnees binaires avec suppression de composante continue
FR2585905B1 (fr) * 1985-08-02 1987-09-25 Telediffusion Fse Procede de modulation en bande de base d'un signal de donnees, appareil de modulation et appareil de demodulation correspondants
JP2006069742A (ja) 2004-09-02 2006-03-16 Hamada Printing Press Co Ltd インクジェット方式の印刷機
FR2998182B1 (fr) 2012-11-16 2015-06-26 Zedel Appareil de securite sur corde a verrouillage sous charge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995264A (en) * 1974-11-01 1976-11-30 International Business Machines Corporation Apparatus for encoding and decoding binary data in a modified zero modulation data code
US4027335A (en) * 1976-03-19 1977-05-31 Ampex Corporation DC free encoding for data transmission system

Also Published As

Publication number Publication date
FR2438388B1 (fr) 1983-04-01
JPS55159659A (en) 1980-12-11
GB2032228A (en) 1980-04-30
BE879124A (fr) 1980-02-01
IT1164050B (it) 1987-04-08
FR2438388A1 (fr) 1980-04-30
NL7907383A (nl) 1980-04-09
DE2940488C2 (de) 1984-08-16
DE2940488A1 (de) 1980-04-24
GB2032228B (en) 1983-03-30
IT7950446A0 (it) 1979-10-03

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Legal Events

Date Code Title Description
MKEX Expiry