IT984566B - Memoria a piastre - Google Patents

Memoria a piastre

Info

Publication number
IT984566B
IT984566B IT2669271A IT2669271A IT984566B IT 984566 B IT984566 B IT 984566B IT 2669271 A IT2669271 A IT 2669271A IT 2669271 A IT2669271 A IT 2669271A IT 984566 B IT984566 B IT 984566B
Authority
IT
Italy
Prior art keywords
plate memory
memory
plate
Prior art date
Application number
IT2669271A
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 IT984566B publication Critical patent/IT984566B/it

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)
IT2669271A 1970-07-14 1971-07-08 Memoria a piastre IT984566B (it)

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
IT984566B true IT984566B (it) 1974-11-20

Family

ID=5776747

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2669271A IT984566B (it) 1970-07-14 1971-07-08 Memoria a piastre

Country Status (7)

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

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
DE2034933A1 (de) 1972-01-27
FR2100900A2 (it) 1972-03-24
FR2100900B2 (it) 1973-06-29
NL7109658A (it) 1972-01-18
BE769996R (fr) 1972-01-14
GB1354780A (en) 1974-06-05
LU63510A1 (it) 1972-03-24

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