SE325056B - - Google Patents

Info

Publication number
SE325056B
SE325056B SE13996/66A SE1399666A SE325056B SE 325056 B SE325056 B SE 325056B SE 13996/66 A SE13996/66 A SE 13996/66A SE 1399666 A SE1399666 A SE 1399666A SE 325056 B SE325056 B SE 325056B
Authority
SE
Sweden
Application number
SE13996/66A
Inventor
D Gwillim
A Freedman
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of SE325056B publication Critical patent/SE325056B/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02Details not particular to receiver or transmitter
    • H04L13/08Intermediate storage means
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407Digital 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
    • G11B20/1419Digital 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 to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/38Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40Transmitting circuits; Receiving circuits
    • H04L25/49Transmitting 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
    • H04L25/4904Transmitting 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 self-synchronising codes, e.g. split-phase codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SE13996/66A 1965-10-15 1966-10-14 SE325056B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43907/65A GB1156503A (en) 1965-10-15 1965-10-15 Improvements relating to Data Recording/Transmission Systems

Publications (1)

Publication Number Publication Date
SE325056B true SE325056B (xx) 1970-06-22

Family

ID=10430870

Family Applications (1)

Application Number Title Priority Date Filing Date
SE13996/66A SE325056B (xx) 1965-10-15 1966-10-14

Country Status (4)

Country Link
US (1) US3487389A (xx)
DE (1) DE1499835A1 (xx)
GB (1) GB1156503A (xx)
SE (1) SE325056B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599156A (en) * 1968-02-06 1971-08-10 Schlumberger Technology Corp Methods and apparatus for transmitting data between remote locations

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377583A (en) * 1964-10-08 1968-04-09 Mohawk Data Science Corp Variable density magnetic binary recording and reproducing system

Also Published As

Publication number Publication date
US3487389A (en) 1969-12-30
DE1499835A1 (de) 1970-04-23
GB1156503A (en) 1969-06-25

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