Browse Prior Art Database

Digital Tape Recording

IP.com Disclosure Number: IPCOM000052131D
Original Publication Date: 1981-May-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Rohen, JE Shay, RJ Smith, WL [+details]

Abstract

Magnetic tape 1 is wound onto takeup spool 2, driven at relatively constant angular velocity by capstan 3. This winding produces a linear tape velocity past recording head 4 that increases with the diameter of tape wound onto spool 2. To obtain uniformly spaced bit recordings for short records, the current average velocity of tape 1 is determined through the use of read head 5, which is spaced a predetermined distance downstream of head 4.