Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Three-Stable State Element

IP.com Disclosure Number: IPCOM000097910D
Original Publication Date: 1961-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Calhoun, BA: AUTHOR

Abstract

This ternary storage element provides three distinct voltage output levels by employing a core, made of magnetic material exhibiting a wasp-waisted hysteresis characteristic.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Three-Stable State Element

This ternary storage element provides three distinct voltage output levels by employing a core, made of magnetic material exhibiting a wasp-waisted hysteresis characteristic.

A core made of Perminvar exhibits a hysteretic characteristic defining +1, 0 and -1 stable remanent states. By application of a field -H3, the -1 stable state is achieved. By application of a field +H3, the +1 stable state is achieved. The 0 state is obtained by first applying a field -H3 and later applying a field >H1 + H2|/2.

The different stable states are identified by employing a two step readout sequence. First, a field >H1 + H2|/2 is applied. If the core is in -1 state, a positive voltage is developed on an output winding coupled to the core, while any other state provides little flux change. Second, a field - >H1 + H2|/2 is applied to the core. If the core is in the +1 state, a negative voltage is developed on the output winding.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]