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 Title: |
US3727201:
INFORMATION STORAGE SYSTEM
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| Country: |
US United States of America
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| Inventor: |
Ho, Shu-Kuang; Chelmsford, MA
Wang, An; Lincoln, MA
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| Assignee: |
Wang Laboratories, Inc., Tewksburg, MA
other patents from WANG LABORATORIES, INC. (618190) (approx. 298)
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| Published / Filed: |
1973-04-10
/ 1970-09-22
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| Application Number: |
US1970000074369
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| IPC Code: |
Advanced:
G11C 17/02;
Core:
G11C 17/00;
IPC-7:
G11C 5/06;
G11C 17/00;
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| U.S. Class: |
Current:
365/097;
365/099;
365/130;
365/193;
365/225.5;
365/243;
Original:
340/174.SP;
340/174.AB;
340/174.CC;
340/174.LA;
340/174.NC;
340/174.WA;
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| Field of Search: |
340/174 AB,174 SP,174 TB
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| Priority Number: |
| 1970-09-22 |
US1970000074369 |
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| Abstract: |
A fixed information storage system includes a plurality of magnetic elements, each of which has linear magnetic characteristics and has a readout winding coupled to it. A plurality of data lines are arranged so that each data line links a different group of magnetic elements. A constant current source, in response to input signal, applies a current pulse to a selected data line to produce output signals in the readout windings of those magnetic elements coupled to the selected data line.
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| Attorney, Agent or Firm: |
Ertman, Willis M. ;
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| Primary / Asst. Examiners: |
Moffitt, James W.;
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 4 claims |
1. A fixed information storage system comprising a plurality of magnetic cores, each magnetic core having an aperture and having linear magnetic characteristics, a plurality of data lines, each data line passing through the apertures of a different group of data cores,
- a readout line coupled to each data core,
- means for selecting a particular data line including a plurality of input selection means, each said selection means including a solid state device having emitter, base and collector terminals, each said solid state device being connected in common base configuration and having its collector terminal connected to one end of a data line and its base terminal connected to a selector switch, a plurality of switch devices arranged in a two-dimensional array, a first group of said switch devices being connected to the base electrodes of corresponding ones of said solid state devices and a second group of said switches being connected to the ends of said data lines remote from said solid state devices,
- a constant current source connected to the emitter terminals of all of said solid state devices, means responsive to an input signal for applying a current pulse from said constant current source to the selected data line to produce output signals in said readout lines of those data elements coupled to said selected data line,
- a storage device connected to each said readout line and means for applying a reset signal to said storage devices in overlap with said input signal,
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 1 U.S. patent(s) that reference this one
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