FR2445550A1 - TRAINING DEVICE FOR DISC MEMORY - Google Patents

TRAINING DEVICE FOR DISC MEMORY

Info

Publication number
FR2445550A1
FR2445550A1 FR7836981A FR7836981A FR2445550A1 FR 2445550 A1 FR2445550 A1 FR 2445550A1 FR 7836981 A FR7836981 A FR 7836981A FR 7836981 A FR7836981 A FR 7836981A FR 2445550 A1 FR2445550 A1 FR 2445550A1
Authority
FR
France
Prior art keywords
memory
training device
disc memory
formatting device
code memory
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.)
Granted
Application number
FR7836981A
Other languages
French (fr)
Other versions
FR2445550B1 (en
Inventor
Jean-Marie Dusselier
Jacques Le Bour
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 SA
Original Assignee
Bull SA
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 Bull SA filed Critical Bull SA
Priority to FR7836981A priority Critical patent/FR2445550A1/en
Priority to GB7944486A priority patent/GB2045479A/en
Publication of FR2445550A1 publication Critical patent/FR2445550A1/en
Application granted granted Critical
Publication of FR2445550B1 publication Critical patent/FR2445550B1/fr
Granted 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

La présente invention concerne un dispositif formateur pour mémoire à disque. L'invention réside dans le fait que le dispositif formateur est connecté en dérivation entre l'interface 16 et le circuit de commande 30 des disques et qu'il comprend principalement une mémoire de codes fixes 80 et une mémoire de codes variables 81, lesdites mémoires étant adressées à l'aide des signaux de décodage des positions d'un compteur 82 qui avance d'un pas à chaque signal DRQ fourni par le circuit 30 après l'enregistrement d un octet lu dans une mémoire. L'invention est applicable aux calculateurs.The present invention relates to a formatting device for disk memory. The invention resides in the fact that the formatting device is connected by branch between the interface 16 and the control circuit 30 of the disks and that it mainly comprises a fixed code memory 80 and a variable code memory 81, said memories being addressed with the aid of the position decoding signals of a counter 82 which advances by one step for each DRQ signal supplied by the circuit 30 after the recording of a byte read in a memory. The invention is applicable to computers.

FR7836981A 1978-12-29 1978-12-29 TRAINING DEVICE FOR DISC MEMORY Granted FR2445550A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7836981A FR2445550A1 (en) 1978-12-29 1978-12-29 TRAINING DEVICE FOR DISC MEMORY
GB7944486A GB2045479A (en) 1978-12-29 1979-12-28 Formatting arrangement for disc memories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836981A FR2445550A1 (en) 1978-12-29 1978-12-29 TRAINING DEVICE FOR DISC MEMORY

Publications (2)

Publication Number Publication Date
FR2445550A1 true FR2445550A1 (en) 1980-07-25
FR2445550B1 FR2445550B1 (en) 1985-02-22

Family

ID=9216760

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836981A Granted FR2445550A1 (en) 1978-12-29 1978-12-29 TRAINING DEVICE FOR DISC MEMORY

Country Status (2)

Country Link
FR (1) FR2445550A1 (en)
GB (1) GB2045479A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051308A1 (en) * 1980-11-03 1982-05-12 Siemens Nixdorf Informationssysteme Aktiengesellschaft Method and arrangement for formatting a magnetic recording disc

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422110A (en) * 1981-08-25 1983-12-20 Hewlett-Packard Company Method and apparatus for multi-track data translation on a disc
US4811279A (en) * 1981-10-05 1989-03-07 Digital Equipment Corporation Secondary storage facility employing serial communications between drive and controller
US4811280A (en) * 1983-06-16 1989-03-07 American Telephone And Telegraph Company Dual mode disk controller
US4554598A (en) * 1984-05-25 1985-11-19 Honeywell Information Systems, Inc. Single revolution disk sector formatter
DE3705185A1 (en) * 1986-02-20 1987-08-27 Sharp Kk Diskette recording process
JP3474110B2 (en) * 1997-08-25 2003-12-08 株式会社リコー Optical disk recording / reproducing apparatus, optical disk recording / reproducing method, and computer-readable recording medium

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *
EXBK/76 *
EXBK/78 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051308A1 (en) * 1980-11-03 1982-05-12 Siemens Nixdorf Informationssysteme Aktiengesellschaft Method and arrangement for formatting a magnetic recording disc

Also Published As

Publication number Publication date
GB2045479A (en) 1980-10-29
FR2445550B1 (en) 1985-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse