FR2499281B1 - Procede et dispositif d'evaluation d'un systeme d'enregistrement - Google Patents

Procede et dispositif d'evaluation d'un systeme d'enregistrement

Info

Publication number
FR2499281B1
FR2499281B1 FR8201548A FR8201548A FR2499281B1 FR 2499281 B1 FR2499281 B1 FR 2499281B1 FR 8201548 A FR8201548 A FR 8201548A FR 8201548 A FR8201548 A FR 8201548A FR 2499281 B1 FR2499281 B1 FR 2499281B1
Authority
FR
France
Prior art keywords
evaluating
recording system
recording
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
FR8201548A
Other languages
English (en)
Other versions
FR2499281A1 (fr
Inventor
Douglas K Mahon
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of FR2499281A1 publication Critical patent/FR2499281A1/fr
Application granted granted Critical
Publication of FR2499281B1 publication Critical patent/FR2499281B1/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
    • G11B20/1407—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
FR8201548A 1981-02-02 1982-02-01 Procede et dispositif d'evaluation d'un systeme d'enregistrement Expired FR2499281B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/230,699 US4394695A (en) 1981-02-02 1981-02-02 Method and apparatus for evaluating recording systems

Publications (2)

Publication Number Publication Date
FR2499281A1 FR2499281A1 (fr) 1982-08-06
FR2499281B1 true FR2499281B1 (fr) 1986-03-28

Family

ID=22866224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8201548A Expired FR2499281B1 (fr) 1981-02-02 1982-02-01 Procede et dispositif d'evaluation d'un systeme d'enregistrement

Country Status (8)

Country Link
US (1) US4394695A (fr)
JP (1) JPS57147110A (fr)
CA (1) CA1166349A (fr)
DE (1) DE3202738A1 (fr)
FR (1) FR2499281B1 (fr)
GB (1) GB2092310B (fr)
IT (1) IT8219358A0 (fr)
NL (1) NL8200258A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930217A (ja) * 1982-08-06 1984-02-17 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン 誤り検出機能を有する復調器
US4578721A (en) * 1984-09-10 1986-03-25 Seagate Technology Stress test for magnetic disc recording apparatus
US4908812A (en) * 1985-09-13 1990-03-13 Yamaha Corporation Synchronizing signal reproducing circuit in a disc playback device
JPH0734294B2 (ja) * 1985-11-08 1995-04-12 株式会社日立製作所 記録媒体の欠陥検出方法及び欠陥検出装置
US4682252A (en) * 1985-12-02 1987-07-21 Seagate Technology Method and apparatus for evaluating a recording system utilizing a programmable window generator having first and second multivibrators providing delay
JPS62175969A (ja) * 1986-01-28 1987-08-01 Mitsubishi Electric Corp 記憶装置
US4726022A (en) * 1986-04-30 1988-02-16 International Business Machines Corporation Method and apparatus for stressing the data window in magnetic storage devices
GB2208321A (en) * 1987-07-29 1989-03-22 Neotech Group Limited Logic probe
DE3903163A1 (de) * 1989-02-03 1990-08-09 Thomson Brandt Gmbh Magnetbandgeraet zur digitalen aufzeichnung und wiedergabe von audio- bzw. videosignalen
US5233545A (en) * 1989-09-19 1993-08-03 Hewlett-Packard Company Time interval triggering and hardware histogram generation
US5121263A (en) * 1989-10-31 1992-06-09 International Business Machines Corporation Method and apparatus for determining the error rate of magnetic recording disk drives having a amplitude sampling data detection
DE69025269T2 (de) * 1989-11-16 1996-07-04 Canon Kk Informationsverarbeitungsgerät
GB9024515D0 (en) * 1990-11-12 1991-01-02 Texas Instruments Ltd Improvements in or relating to digital communications
JPH05234273A (ja) * 1990-11-30 1993-09-10 Hitachi Ltd 信号波形の評価装置および磁気ディスク装置
US5260842A (en) * 1992-04-16 1993-11-09 Vtc Inc. Data separator having an accurate delay circuit
US5258877A (en) * 1992-04-16 1993-11-02 Vtc Inc. Data separator having a restart circuit
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
US5625506A (en) * 1994-06-17 1997-04-29 International Business Machines Corporation Method and apparatus for reducing readback errors by controlling the phase locked loop
US6877116B1 (en) * 1997-08-28 2005-04-05 Seagate Technology Llc Method and apparatus for determining bit error rate in a sampled data system without requiring read channel circuitry
US7529049B2 (en) 2006-09-01 2009-05-05 Hitachi Global Storage Technologies Netherlands B.V. Method and system for testing of magnetic disks using F-BER

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287714A (en) * 1962-12-24 1966-11-22 Ibm Deskewing utilizing a variable length gate
US3519988A (en) * 1965-05-17 1970-07-07 Honeywell Inc Error checking arrangement for data processing apparatus
US3487363A (en) * 1967-08-31 1969-12-30 Bell Telephone Labor Inc Asynchronous parity checking circuit
US3524164A (en) * 1968-01-15 1970-08-11 Ibm Detection and error checking system for binary data
US3699556A (en) * 1971-04-30 1972-10-17 Singer Co Digital encoding system wherein information is indicted by transition placement
US3916329A (en) * 1974-05-01 1975-10-28 Hekimian Laboratories Inc Time jitter generator
JPS5260110A (en) * 1975-11-12 1977-05-18 Fujitsu Ltd Phase margin measuring equipment
US4281356A (en) * 1979-11-28 1981-07-28 R. C. Sanders Technology Systems, Inc. Magnetic disk memory

Also Published As

Publication number Publication date
IT8219358A0 (it) 1982-01-29
NL8200258A (nl) 1982-09-01
JPS57147110A (en) 1982-09-10
DE3202738A1 (de) 1983-05-19
US4394695A (en) 1983-07-19
GB2092310B (en) 1985-01-09
FR2499281A1 (fr) 1982-08-06
CA1166349A (fr) 1984-04-24
GB2092310A (en) 1982-08-11

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Legal Events

Date Code Title Description
ST Notification of lapse