Browse Prior Art Database

In Situ Servo Track Recording for a Record Storage Disk

IP.com Disclosure Number: IPCOM000089662D
Original Publication Date: 1977-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Proper, DS: AUTHOR

Abstract

A disk storage apparatus (not shown) has a voice coil motor for moving the head support arm carrying a magnetic head for transducing operations. This accessing apparatus can be employed for recording servo information on each storage disk by attaching a precision motion control apparatus on the frame reference and connecting the apparatus to the voice coil motor via a tapered peg on a reference arm.

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In Situ Servo Track Recording for a Record Storage Disk

A disk storage apparatus (not shown) has a voice coil motor for moving the head support arm carrying a magnetic head for transducing operations. This accessing apparatus can be employed for recording servo information on each storage disk by attaching a precision motion control apparatus on the frame reference and connecting the apparatus to the voice coil motor via a tapered peg on a reference arm.

The precision drive apparatus includes a partial driver fly wheel for providing precision motion in the direction of the arrow. The partial fly wheel is positively engaged with a steel band mounted on a pair of pulleys for moving in the direction of the arrow during servo recording operations. The steel band has an aperture for receiving the tapered peg for precisely moving the head support arm for servo recording operations. A reverse loading tension spring maintains the partial fly wheel in the reference position in opposition to the precision motion. A stepping motor moves the partial fly wheel in the direction of the precision motion arrow by overcoming the spring tension for zero flyback motion of the magnetic head. A control unit (not shown) limits rotation of the partial fly wheel. For safety purposes, limit switches (not shown) can be employed for failure protection.

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