BE769996R - Memoire a - Google Patents

Memoire a

Info

Publication number
BE769996R
BE769996R BE769996A BE769996A BE769996R BE 769996 R BE769996 R BE 769996R BE 769996 A BE769996 A BE 769996A BE 769996 A BE769996 A BE 769996A BE 769996 R BE769996 R BE 769996R
Authority
BE
Belgium
Prior art keywords
memory
Prior art date
Application number
BE769996A
Other languages
English (en)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of BE769996R publication Critical patent/BE769996R/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device
    • G05D3/203—Control of position or direction using feedback using a digital comparing device using fine or coarse devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1436—Control of position or direction using feedback using an analogue comparing device with fine or coarse devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Linear Motors (AREA)
BE769996A 1970-07-14 1971-07-14 Memoire a BE769996R (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702034933 DE2034933A1 (de) 1970-07-14 1970-07-14 Plattenspeicher

Publications (1)

Publication Number Publication Date
BE769996R true BE769996R (fr) 1972-01-14

Family

ID=5776747

Family Applications (1)

Application Number Title Priority Date Filing Date
BE769996A BE769996R (fr) 1970-07-14 1971-07-14 Memoire a

Country Status (7)

Country Link
BE (1) BE769996R (fr)
DE (1) DE2034933A1 (fr)
FR (1) FR2100900B2 (fr)
GB (1) GB1354780A (fr)
IT (1) IT984566B (fr)
LU (1) LU63510A1 (fr)
NL (1) NL7109658A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA995300A (en) * 1972-08-21 1976-08-17 John Cuda Coarse and fine control for position servo
NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager.

Also Published As

Publication number Publication date
NL7109658A (fr) 1972-01-18
GB1354780A (en) 1974-06-05
FR2100900B2 (fr) 1973-06-29
IT984566B (it) 1974-11-20
FR2100900A2 (fr) 1972-03-24
LU63510A1 (fr) 1972-03-24
DE2034933A1 (de) 1972-01-27

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