GB1294281A - Improvements in or relating to digital encoding systems - Google Patents

Improvements in or relating to digital encoding systems

Info

Publication number
GB1294281A
GB1294281A GB09523/71A GB1952371A GB1294281A GB 1294281 A GB1294281 A GB 1294281A GB 09523/71 A GB09523/71 A GB 09523/71A GB 1952371 A GB1952371 A GB 1952371A GB 1294281 A GB1294281 A GB 1294281A
Authority
GB
United Kingdom
Prior art keywords
nand gate
input
waveform
pulse
stable
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
GB09523/71A
Other languages
English (en)
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.)
Bull HN Information Systems Italia SpA
Bull HN Information Systems Inc
Original Assignee
Honeywell Information Systems Italia SpA
Honeywell Information Systems Inc
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 Honeywell Information Systems Italia SpA, Honeywell Information Systems Inc filed Critical Honeywell Information Systems Italia SpA
Publication of GB1294281A publication Critical patent/GB1294281A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/4904—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 self-synchronising codes, e.g. split-phase codes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Manipulation Of Pulses (AREA)
GB09523/71A 1970-07-06 1971-06-08 Improvements in or relating to digital encoding systems Expired GB1294281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5232770A 1970-07-06 1970-07-06

Publications (1)

Publication Number Publication Date
GB1294281A true GB1294281A (en) 1972-10-25

Family

ID=21976883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09523/71A Expired GB1294281A (en) 1970-07-06 1971-06-08 Improvements in or relating to digital encoding systems

Country Status (6)

Country Link
US (1) US3678503A (enExample)
JP (1) JPS5648890B1 (enExample)
CA (1) CA953819A (enExample)
DE (1) DE2133660A1 (enExample)
FR (1) FR2098177B1 (enExample)
GB (1) GB1294281A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836904A (en) * 1972-12-12 1974-09-17 Robertshaw Controls Co Output encoder and line driver
US3815122A (en) * 1973-01-02 1974-06-04 Gte Information Syst Inc Data converting apparatus
US3848251A (en) * 1973-07-02 1974-11-12 Ibm Logical circuitry for recovering rpm decoded prm recorded data
GB1532444A (en) * 1975-03-26 1978-11-15 Micro Consultants Ltd Synchronising data for digital storage systems
JPS601384U (ja) * 1983-06-17 1985-01-08 国産金属工業株式会社 郵便投入口における開閉蓋の取付装置
US6847312B2 (en) * 2001-03-19 2005-01-25 Kodeos Communications Symmetric line coding
WO2011141049A1 (en) * 2010-05-10 2011-11-17 Verigy (Singapore) Pte. Ltd. Apparatus for determining a number of successive equal bits preceding an edge within a bit stream and apparatus for reconstructing a repetitive bit sequence
CN103154755B (zh) 2010-08-12 2015-04-01 爱德万测试(新加坡)私人有限公司 用于生成参考扫描链测试数据的测试装置、测试系统和方法
CN111897197B (zh) * 2020-08-18 2021-11-16 四川大学 基于双相位编码的傅里叶相位全息图生成方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452348A (en) * 1965-06-29 1969-06-24 Rca Corp Conversion from self-clocking code to nrz code
US3414894A (en) * 1965-06-29 1968-12-03 Rca Corp Magnetic recording and reproducing of digital information
US3500385A (en) * 1967-07-17 1970-03-10 Ibm Coded data storage and retrieval system

Also Published As

Publication number Publication date
CA953819A (en) 1974-08-27
DE2133660A1 (de) 1972-01-20
JPS5648890B1 (enExample) 1981-11-18
US3678503A (en) 1972-07-18
FR2098177A1 (enExample) 1972-03-10
FR2098177B1 (enExample) 1975-07-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee