JPS52162112U - - Google Patents
Info
- Publication number
- JPS52162112U JPS52162112U JP1977070771U JP7077177U JPS52162112U JP S52162112 U JPS52162112 U JP S52162112U JP 1977070771 U JP1977070771 U JP 1977070771U JP 7077177 U JP7077177 U JP 7077177U JP S52162112 U JPS52162112 U JP S52162112U
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/46—Controlling, regulating, or indicating speed
- G11B15/48—Starting; Accelerating; Decelerating; Arrangements preventing malfunction during drive change
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/56—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
- G11B15/58—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith with vacuum column
Landscapes
- Control Of Multiple Motors (AREA)
- Control Of Electric Motors In General (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Control Of Direct Current Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/692,175 US4065074A (en) | 1976-06-02 | 1976-06-02 | Reel servo control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS52162112U true JPS52162112U (en:Method) | 1977-12-08 |
Family
ID=24779554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977070771U Pending JPS52162112U (en:Method) | 1976-06-02 | 1977-06-02 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4065074A (en:Method) |
| JP (1) | JPS52162112U (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03293989A (ja) * | 1980-12-15 | 1991-12-25 | Ivac Corp | 直流モータを制御する方法 |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5948459B2 (ja) * | 1978-06-19 | 1984-11-27 | 日本電気株式会社 | 磁気テ−プ装置 |
| JPS5629469A (en) * | 1979-08-16 | 1981-03-24 | Sony Corp | Switching control circuit |
| JPS6317063Y2 (en:Method) * | 1980-07-30 | 1988-05-16 | ||
| GB2106270B (en) * | 1981-09-17 | 1985-10-02 | Emi Ltd | Tape transport control systems |
| US4448368A (en) * | 1982-03-23 | 1984-05-15 | Raymond Engineering Inc. | Control for tape drive system |
| KR900001120Y1 (ko) * | 1986-04-22 | 1990-02-17 | 주식회사금성사 | 릴 직경 구동방식의 비디오 테이프 레코더용 릴 서보(servo)장치 |
| US5032780A (en) * | 1989-09-29 | 1991-07-16 | Sgs-Thomson Microelectronics, Inc. | Programmable stepper motor controller |
| JP2936606B2 (ja) * | 1989-12-18 | 1999-08-23 | ソニー株式会社 | フリクションキャプスタン駆動方式のテープ走行駆動装置 |
| JP3595357B2 (ja) * | 1994-06-30 | 2004-12-02 | ファナック株式会社 | ディジタルサーボによるタンデム制御方法 |
| US5587640A (en) * | 1994-09-28 | 1996-12-24 | Tetra Laval Holdings & Finance S.A. | Delayed safety braking apparatus for a servomotor control system |
| FR2752112B1 (fr) * | 1996-07-31 | 1998-10-23 | Sgs Thomson Microelectronics | Systeme de detection des passages par zero de la fcem d'un moteur a phases multiples |
| IT1299965B1 (it) * | 1998-04-08 | 2000-04-04 | Gd Spa | Metodo ed unita' per l'alimentazione di un nastro di materiale in foglio. |
| US6754026B1 (en) * | 1999-10-28 | 2004-06-22 | International Business Machines Corporation | Tape transport servo system and method for a computer tape drive |
| US6819065B1 (en) * | 2003-07-14 | 2004-11-16 | International Business Machines, (Ibm) Corporation | Dynamic braking of a tape motor |
| US7675255B2 (en) * | 2007-01-31 | 2010-03-09 | International Business Machines Corporation | Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system |
| US20250022484A1 (en) * | 2023-07-11 | 2025-01-16 | International Business Machines Corporation | Enhanced dynamic braking algorithm for tape storage device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL285255A (en:Method) * | 1961-11-09 | |||
| US3565366A (en) * | 1968-11-01 | 1971-02-23 | Ex Cell O Corp | Tape transport control system |
| US3673473A (en) * | 1970-10-19 | 1972-06-27 | Ibm | Magnetic tape unit reel motor tension control |
| US3809328A (en) * | 1973-03-26 | 1974-05-07 | Ibm | Field and armature control in a reel motor servomechanism |
-
1976
- 1976-06-02 US US05/692,175 patent/US4065074A/en not_active Expired - Lifetime
-
1977
- 1977-06-02 JP JP1977070771U patent/JPS52162112U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03293989A (ja) * | 1980-12-15 | 1991-12-25 | Ivac Corp | 直流モータを制御する方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4065074A (en) | 1977-12-27 |