DIODE STEERED MANGETIC-CORE MEMORY
Abstract
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)
- Inventors:
- Issue Date:
- OSTI Identifier:
- 4794790
- Patent Number(s):
- 3054989
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES
- NSA Number:
- NSA-16-030648
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-62
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ENGINEERING AND EQUIPMENT; CIRCUITS; COMPUTERS; CONTROL; DIGITAL SYSTEMS; MAGNETIC MATERIALS; RECORDING SYSTEMS; SIGNALS
Citation Formats
Melmed, A S, Shevlin, R T, and Laupheimer, R. DIODE STEERED MANGETIC-CORE MEMORY. United States: N. p., 1962.
Web.
Melmed, A S, Shevlin, R T, & Laupheimer, R. DIODE STEERED MANGETIC-CORE MEMORY. United States.
Melmed, A S, Shevlin, R T, and Laupheimer, R. Tue .
"DIODE STEERED MANGETIC-CORE MEMORY". United States.
@article{osti_4794790,
title = {DIODE STEERED MANGETIC-CORE MEMORY},
author = {Melmed, A S and Shevlin, R T and Laupheimer, R},
abstractNote = {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)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {9}
}