Browse Prior Art Database

Reel Motor Current Control

IP.com Disclosure Number: IPCOM000068797D
Original Publication Date: 1978-Feb-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Behman, SB [+details]

Abstract

In a reel-to-reel tape drive apparatus, current for each reel motor is controlled by calculating instantaneous tape velocity and reel inertia and using the two values as a unique address to a read-only storage (ROS) to obtain the appropriate value of motor current for each reel.