FR2100900A2 - - Google Patents
Info
- Publication number
- FR2100900A2 FR2100900A2 FR7125611A FR7125611A FR2100900A2 FR 2100900 A2 FR2100900 A2 FR 2100900A2 FR 7125611 A FR7125611 A FR 7125611A FR 7125611 A FR7125611 A FR 7125611A FR 2100900 A2 FR2100900 A2 FR 2100900A2
- Authority
- FR
- France
- 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702034933 DE2034933A1 (de) | 1970-07-14 | 1970-07-14 | Plattenspeicher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2100900A2 true FR2100900A2 (en, 2012) | 1972-03-24 |
| FR2100900B2 FR2100900B2 (en, 2012) | 1973-06-29 |
Family
ID=5776747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7125611A Expired FR2100900B2 (en, 2012) | 1970-07-14 | 1971-07-13 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE769996R (en, 2012) |
| DE (1) | DE2034933A1 (en, 2012) |
| FR (1) | FR2100900B2 (en, 2012) |
| GB (1) | GB1354780A (en, 2012) |
| IT (1) | IT984566B (en, 2012) |
| LU (1) | LU63510A1 (en, 2012) |
| NL (1) | NL7109658A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2197193A1 (en, 2012) * | 1972-08-21 | 1974-03-22 | Information Storage Systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7810386A (nl) * | 1978-10-17 | 1980-04-21 | Philips Nv | Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager. |
-
1970
- 1970-07-14 DE DE19702034933 patent/DE2034933A1/de active Pending
-
1971
- 1971-07-08 IT IT2669271A patent/IT984566B/it active
- 1971-07-12 LU LU63510D patent/LU63510A1/xx unknown
- 1971-07-13 GB GB3268871A patent/GB1354780A/en not_active Expired
- 1971-07-13 NL NL7109658A patent/NL7109658A/xx unknown
- 1971-07-13 FR FR7125611A patent/FR2100900B2/fr not_active Expired
- 1971-07-14 BE BE769996A patent/BE769996R/xx active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2197193A1 (en, 2012) * | 1972-08-21 | 1974-03-22 | Information Storage Systems |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2100900B2 (en, 2012) | 1973-06-29 |
| DE2034933A1 (de) | 1972-01-27 |
| BE769996R (fr) | 1972-01-14 |
| IT984566B (it) | 1974-11-20 |
| LU63510A1 (en, 2012) | 1972-03-24 |
| GB1354780A (en) | 1974-06-05 |
| NL7109658A (en, 2012) | 1972-01-18 |