Method and apparatus for controlling the movement of a...

Details Method and apparatus for controlling the movement of a... Method and apparatus for controlling the movement of a...

Category

G - Physics

Subcategory

11

Subsubcategory

B

CPC

352/21.1

IPC codes

G11B 19/20 (2006.01) G11B 15/18 (2006.01) G11B 15/46 (2006.01) G11B 15/54 (2006.01) G11B 15/60 (2006.01) G11B 27/00 (2006.01) G11B 27/13 (2006.01)

Type

Patent

Patent number

CA 1120148

Description

ABSTRACT OF THE DISCLOSURE A recording medium transport control precisely controls the movement of a recording medium such as magnetic tape. A pulse drive control adapted for manipulation provides drive pulses to the transport. Each drive pulse is of a variable duration sufficient to drive the transport so that the medium is moved a predetermined distance. One embodiment of the present invention includes a velocity servo drive control, also adapted for manipulation, for providing an adjustable continuous drive signal to the transport and a switch for switching control of the transport from the pulse drive control to the velocity servo drive control when the velocity of the transport reaches a predetermined cross-over velocity. -1-

Application Number

317223

Affiliated with

Also associated with

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