IT1189512B - METHOD FOR ADJUSTING THE PHASE AND SPEED OF A MOTOR DRIVE FOR THE HEAD DRUM AND FOR THE DRIVING SYSTEM OF THE TAPE OF A VIDEO RECORDER AND MOTOR DRIVE TO IMPLEMENT THIS METHOD - Google Patents
METHOD FOR ADJUSTING THE PHASE AND SPEED OF A MOTOR DRIVE FOR THE HEAD DRUM AND FOR THE DRIVING SYSTEM OF THE TAPE OF A VIDEO RECORDER AND MOTOR DRIVE TO IMPLEMENT THIS METHODInfo
- Publication number
- IT1189512B IT1189512B IT20418/86A IT2041886A IT1189512B IT 1189512 B IT1189512 B IT 1189512B IT 20418/86 A IT20418/86 A IT 20418/86A IT 2041886 A IT2041886 A IT 2041886A IT 1189512 B IT1189512 B IT 1189512B
- Authority
- IT
- Italy
- Prior art keywords
- motor drive
- tape
- implement
- adjusting
- phase
- Prior art date
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
- G11B15/1808—Driving of both record carrier and head
-
- 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
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
-
- 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
- G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
- G11B15/4671—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling simultaneously the speed of the tape and the speed of the rotating head
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853517815 DE3517815A1 (en) | 1985-05-17 | 1985-05-17 | Process for the phase and speed control of a direct-current motor drive |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT8620418A0 IT8620418A0 (en) | 1986-05-13 |
| IT8620418A1 IT8620418A1 (en) | 1987-11-13 |
| IT1189512B true IT1189512B (en) | 1988-02-04 |
Family
ID=6271002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT20418/86A IT1189512B (en) | 1985-05-17 | 1986-05-13 | METHOD FOR ADJUSTING THE PHASE AND SPEED OF A MOTOR DRIVE FOR THE HEAD DRUM AND FOR THE DRIVING SYSTEM OF THE TAPE OF A VIDEO RECORDER AND MOTOR DRIVE TO IMPLEMENT THIS METHOD |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS6251063A (en) |
| DE (1) | DE3517815A1 (en) |
| IT (1) | IT1189512B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718207A1 (en) * | 1987-05-29 | 1988-12-15 | Thomson Brandt Gmbh | METHOD FOR CONTROLLING THE SPEED OF A ROTOR |
| JP2898991B2 (en) * | 1988-06-21 | 1999-06-02 | キヤノン株式会社 | Rotation control device |
| KR0179527B1 (en) * | 1990-06-21 | 1999-04-15 | 구자홍 | V-Cal's Motor Control Method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4047231A (en) * | 1976-03-19 | 1977-09-06 | Ampex Corporation | High stability digital head servo for video recorders |
-
1985
- 1985-05-17 DE DE19853517815 patent/DE3517815A1/en active Granted
-
1986
- 1986-05-13 IT IT20418/86A patent/IT1189512B/en active
- 1986-05-15 JP JP61109710A patent/JPS6251063A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6251063A (en) | 1987-03-05 |
| DE3517815C2 (en) | 1988-04-14 |
| IT8620418A1 (en) | 1987-11-13 |
| DE3517815A1 (en) | 1986-11-20 |
| IT8620418A0 (en) | 1986-05-13 |
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