DIODE STEERED MANGETIC-CORE MEMORY

Patent · Tue Sep 18 04:00:00 EDT 1962

OSTI ID:4794790

Melmed, A S; Shevlin, R T; Laupheimer, R

A word-arranged magnetic-core memory is designed for use in a digital computer utilizing the reverse or back current property of the semi-conductor diodes to restore the information in the memory after read-out. In order to ob tain a read-out signal from a magnetic core storage unit, it is necessary to change the states of some of the magnetic cores. In order to retain the information in the memory after read-out it is then necessary to provide a means to return the switched cores to their states before read-out. A rewrite driver passes a pulse back through each row of cores in which some switching has taken place. This pulse combines with the reverse current pulses of diodes for each column in which a core is switched during read-out to cause the particular cores to be switched back into their states prior to read-out. (AEC)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-030648
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 3054989
• OSTI ID: 4794790
• Country of Publication: United States
• Language: English

Related Subjects

CIRCUITS
COMPUTERS
CONTROL
DIGITAL SYSTEMS
ENGINEERING AND EQUIPMENT
MAGNETIC MATERIALS
RECORDING SYSTEMS
SIGNALS