CA1052904A - Data storage track padding apparatus - Google Patents

Data storage track padding apparatus

Info

Publication number
CA1052904A
CA1052904A CA195,196A CA195196A CA1052904A CA 1052904 A CA1052904 A CA 1052904A CA 195196 A CA195196 A CA 195196A CA 1052904 A CA1052904 A CA 1052904A
Authority
CA
Canada
Prior art keywords
signal
line
circuit
gate
control unit
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
CA195,196A
Other languages
English (en)
French (fr)
Other versions
CA195196S (en
Inventor
Fernando A. Luiz
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1052904A publication Critical patent/CA1052904A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CA195,196A 1973-04-13 1974-03-18 Data storage track padding apparatus Expired CA1052904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00351124A US3824563A (en) 1973-04-13 1973-04-13 Data storage track padding apparatus

Publications (1)

Publication Number Publication Date
CA1052904A true CA1052904A (en) 1979-04-17

Family

ID=23379675

Family Applications (1)

Application Number Title Priority Date Filing Date
CA195,196A Expired CA1052904A (en) 1973-04-13 1974-03-18 Data storage track padding apparatus

Country Status (7)

Country Link
US (1) US3824563A (cg-RX-API-DMAC7.html)
JP (1) JPS5618979B2 (cg-RX-API-DMAC7.html)
CA (1) CA1052904A (cg-RX-API-DMAC7.html)
DE (1) DE2417538C2 (cg-RX-API-DMAC7.html)
FR (1) FR2225810B1 (cg-RX-API-DMAC7.html)
GB (1) GB1455508A (cg-RX-API-DMAC7.html)
IT (1) IT1010744B (cg-RX-API-DMAC7.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911400A (en) * 1974-04-19 1975-10-07 Digital Equipment Corp Drive condition detecting circuit for secondary storage facilities in data processing systems
US4477847A (en) * 1977-01-28 1984-10-16 Knight Howard W Television signal disc drive recorder
US4103338A (en) * 1977-02-28 1978-07-25 Xerox Corporation Self-diagnostic method and apparatus for disk drive
US4183084A (en) * 1977-06-06 1980-01-08 Digital Equipment Corporation Secondary storage facility with serial transfer of control messages
JPS5676861A (en) * 1979-11-27 1981-06-24 Toshiba Corp Floppy disk controller
JPS56111957A (en) * 1980-02-09 1981-09-04 Casio Comput Co Ltd Data filing device
US4366511A (en) * 1980-11-03 1982-12-28 Nixdorf Computer Corporation Method and apparatus for formatting a memory disk
US4707750A (en) * 1985-02-20 1987-11-17 Media Systems Technology, Inc. Automatic sequencer for a flexible disk loader/copier
JPS61241824A (ja) * 1985-04-19 1986-10-28 Hitachi Ltd 磁気デイスク装置の制御方法
US5802557A (en) * 1996-03-18 1998-09-01 Emc Corp System and method for caching information in a digital data storage subsystem
US6119201A (en) * 1997-02-19 2000-09-12 International Business Machines Corporation Disk under-run protection using formatted padding sectors
US7502185B2 (en) * 2004-09-10 2009-03-10 Seagate Technology, Llc Method and system for determining spin pad length

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331053A (en) * 1963-10-01 1967-07-11 Ibm Format control for disk recording
US3229877A (en) * 1964-01-31 1966-01-18 John B Mclean Method and apparatus for storage and selective retrieval of magnetically recorded data
GB1050052A (cg-RX-API-DMAC7.html) * 1964-03-25
US3439344A (en) * 1966-08-09 1969-04-15 Sperry Rand Corp Continuous data recording apparatus
US3533071A (en) * 1967-04-12 1970-10-06 Bell Telephone Labor Inc Data transfer system and method
US3490013A (en) * 1967-05-24 1970-01-13 Honeywell Inc Apparatus for detecting and eliminating noise records during a data transfer operation
US3623039A (en) * 1970-05-08 1971-11-23 James E Barham Magnetic tape system having mark code in the form of coincident absence of clock and presence of data pulses
US3699527A (en) * 1970-07-16 1972-10-17 Marconi Co Ltd Data store equipments
US3801969A (en) * 1972-07-24 1974-04-02 Itel Corp Erase feature for data recording device

Also Published As

Publication number Publication date
JPS49131645A (cg-RX-API-DMAC7.html) 1974-12-17
DE2417538C2 (de) 1981-09-17
GB1455508A (en) 1976-11-10
JPS5618979B2 (cg-RX-API-DMAC7.html) 1981-05-02
FR2225810A1 (cg-RX-API-DMAC7.html) 1974-11-08
FR2225810B1 (cg-RX-API-DMAC7.html) 1979-10-19
US3824563A (en) 1974-07-16
DE2417538A1 (de) 1974-10-31
IT1010744B (it) 1977-01-20

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