Cart (Loading....) | Create Account
Close category search window
 

A single board bubble memory with perfect nonvolatility and a parallel operation system using these memories

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Sugie, M. ; Central Research Laboratory, Hitachi Ltd., Tokyo, Japan ; Toyooka, T. ; Aoki, H. ; Yoshizawa, S.
more authors

A single board bubble memory with perfect nonvolatility and an asynchronous parallel operation system using these memories have been developed. Through the use of a saturable coil and a capacitor, the voltage level of the bubble memory power source is maintained. Consequently the proper shut-down sequence can be observed, even in ease of power failures for either open or short circuits. The coil has a small core section to keep it saturated and to reduce its induction during normal operation. When a short circuit occurs, the coil loses saturation and prevents a discharge from the capacitor. Perfect nonvolatility of the bubble memory has been confirmed by 1000 successful power failure tests. In the extended memory, several boards operate asynchronously in parallel through a simple bus arbiter to increase the data transfer rate, Coincidence of the data stream during read and write operations is achieved by the periodic assignment of each memory board to the main memory for every word. This organization adds flexibility to the capacity and the data transfer rate of the bubble memory.

Published in:

Magnetics, IEEE Transactions on  (Volume:19 ,  Issue: 5 )

Date of Publication:

Sep 1983

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.