FR2028789B1 - - Google Patents
Info
- Publication number
- FR2028789B1 FR2028789B1 FR7001879A FR7001879A FR2028789B1 FR 2028789 B1 FR2028789 B1 FR 2028789B1 FR 7001879 A FR7001879 A FR 7001879A FR 7001879 A FR7001879 A FR 7001879A FR 2028789 B1 FR2028789 B1 FR 2028789B1
- 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.)
- Expired
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
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1427—Control of position or direction using feedback using an analogue comparing device with non-linear amplifier chain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
-
- 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
- G05D3/18—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Nonlinear Science (AREA)
- Control Of Position Or Direction (AREA)
- Control Of Velocity Or Acceleration (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79238669A | 1969-01-21 | 1969-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2028789A1 FR2028789A1 (en, 2012) | 1970-10-16 |
| FR2028789B1 true FR2028789B1 (en, 2012) | 1974-08-09 |
Family
ID=25156729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7001879A Expired FR2028789B1 (en, 2012) | 1969-01-21 | 1970-01-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3568059A (en, 2012) |
| JP (1) | JPS51870B1 (en, 2012) |
| DE (1) | DE2002198A1 (en, 2012) |
| FR (1) | FR2028789B1 (en, 2012) |
| GB (1) | GB1249451A (en, 2012) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3820712A (en) * | 1973-03-12 | 1974-06-28 | Ibm | Electronic tachometer |
| US3883894A (en) * | 1973-10-19 | 1975-05-13 | Storage Disk Corp | Disk drive servo system |
| JPS50152779A (en, 2012) * | 1974-05-29 | 1975-12-09 | ||
| JPS584306B2 (ja) * | 1974-06-18 | 1983-01-25 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | デンシテキソクドケイ |
| JPS582427B2 (ja) * | 1975-10-09 | 1983-01-17 | 富士通株式会社 | ジキデイスクソウチ |
| US4138728A (en) * | 1977-06-29 | 1979-02-06 | International Business Machines Corporation | Electronic tachometer with variable bandwidth differentiator |
| US4134373A (en) * | 1977-10-03 | 1979-01-16 | General Motors Corporation | Engine speed limiting control circuit |
| DE2833591A1 (de) * | 1978-07-31 | 1980-02-14 | Siemens Ag | Verfahren zum erzeugen von digitalen ist-geschwindigkeitssignalen in einem positioniersystem fuer die schreib-/ lesekoepfe eines magnetplattenspeichers |
| US4246536A (en) * | 1978-09-29 | 1981-01-20 | International Business Machines Corporation | Electronic velocity measurement device |
| US4263627A (en) * | 1979-06-18 | 1981-04-21 | Sperry Rand Corporation | Electronic tachometer |
| US4321517A (en) * | 1979-12-03 | 1982-03-23 | Storage Technology Corporation | Resonance suppression method |
| AU530227B2 (en) * | 1981-10-19 | 1983-07-07 | Canon Kabushiki Kaisha | Serial printer |
| US4967291A (en) * | 1988-11-02 | 1990-10-30 | Miniscribe Corporation | Method and apparatus for preventing an over-velocity error condition of a hard disk drive system |
| US5877955A (en) * | 1995-11-13 | 1999-03-02 | Waterstrike Incorporated | Transducerless position determining system and method for the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934267A (en) * | 1956-01-13 | 1960-04-26 | Collins Radio Co | Vertical speed computer and altitude control |
| US3359477A (en) * | 1964-05-13 | 1967-12-19 | Fujitsu Ltd | Acceleration and deceleration control system for dc motor |
-
1969
- 1969-01-21 US US792386*A patent/US3568059A/en not_active Expired - Lifetime
-
1970
- 1970-01-06 GB GB683/70A patent/GB1249451A/en not_active Expired
- 1970-01-19 DE DE19702002198 patent/DE2002198A1/de active Granted
- 1970-01-20 FR FR7001879A patent/FR2028789B1/fr not_active Expired
- 1970-01-21 JP JP45005170A patent/JPS51870B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3568059A (en) | 1971-03-02 |
| FR2028789A1 (en, 2012) | 1970-10-16 |
| DE2002198A1 (de) | 1970-09-10 |
| JPS51870B1 (en, 2012) | 1976-01-12 |
| DE2002198B2 (en, 2012) | 1980-03-13 |
| GB1249451A (en) | 1971-10-13 |
| DE2002198C3 (en, 2012) | 1980-11-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| TP | Transmission of property |