← Back to Patent Explorer
US3084336A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic memory construction and circuits

Assignee: AT&T Inc
•
Filing: 1960-03-09
•
Granted: 1963-04-02
•
Expires: 1980-03-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Donald G Clemons

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 03:56
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/06; G11C11/00; G11C11/02; G11C11/12; G11C5/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 293 words
A COORDINATE MEMORY ARRAY COMPRISING A PLURALITY OF PARALLEL ARRANGED MAGNETIC WIRE MEMORY ELEMENTS COMPRISING Y COORDINATES OF SAID ARRAY, EACH OF SAID MEMORY ELEMENTS HAVING A HELICAL FLUX PATH AXIALLY COINCIDENT THEREWITH, EACH OF SAID FLUX PATHS HAVING TWO REMANENT MAGNETIC STATES, A FIRST PLURALITY OF X COORDINATE SOLENOIDS INDUCTIVELY COUPLED TO SAID FUX PATHS AND ARRANGED TRANSVERSELY THERETO, SAID FIRST PLURALITY OF X COORDINATE SOLENOIDS BEING SERIALLY CONNECTED AT ALTERNATE ENDS, A SECOND PLURALITY OF X COORDINATE SOLENOIDS ALSO INDUCTIVELY COUPLED TO SAID FLUX PATHS AND IN REGISTRATION WITH SAID FIRST PLURALITY OF X COORDINATE SOLENOIDS, SAID FIRST AND SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS DEFINING A COORDINATE ARRAY OF INFORMATION ADDRESS SEGMENTS ON SAID FLUX PATHS, SETTING MEANS FOR SETTING PARTICULAR ONES OF THE ADDRESS SEGMENTS DEFINED BY A SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS TO ONE OF SAID STABLE REMANENT STATES, SAID SETTING MEANS COMPRISING MEANS FOR APPLYING A BIASING CURRENT TO EACH OF THE ADDRESS SEGMENTS DEFINED BY SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS, SWITCHING MEANS FOR SWITCHING SAID PARTICULAR ONES OF SAID ADDRESS SEGMENTS TO THE OTHER OF SAID STABLE REMANENT STATES COMPRISING MEANS FOR APPLYING A FIRST PARTIAL SWITCHING CURRENT TO SAID SERIALLY CONNECTED FIRST PLURALITY OF X COORDINATE SOLENOIDS, MEANS FOR APPLYING A SECOND PARTIAL SWITCHING CIRRENT TO SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS COINCIDENTALLY WITH SAID FIRST PARTIAL SWITCHING CURRENT, AND MAGNET MEANS ARRANGED IN INDUCTIVE RELATIONSHIP WITH THE ADDRESS SEGMENTS DEFINED BY SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS OTHER THAN SAID PARTICULAR ADDRESS SEGMENTS FOR PREVENTING THE SWITCHING OF SAID LASTMENTIONED ADDRESS SEGMENTS; AND MEANS FOR DETECTING FLUX SWITCHING IN SAID FLUX PATHS.
Claim 2
Dependent Claim 293 words
A COORDINATE MEMORY ARRAY COMPRISING A PLURALITY OF PARALLEL ARRANGED MAGNETIC WIRE MEMORY ELEMENTS COMPRISING Y COORDINATES OF SAID ARRAY, EACH OF SAID MEMORY ELEMENTS HAVING A HELICAL FLUX PATH AXIALLY COINCIDENT THEREWITH, EACH OF SAID FLUX PATHS HAVING TWO REMANENT MAGNETIC STATES, A FIRST PLURALITY OF X COORDINATE SOLENOIDS INDUCTIVELY COUPLED TO SAID FUX PATHS AND ARRANGED TRANSVERSELY THERETO, SAID FIRST PLURALITY OF X COORDINATE SOLENOIDS BEING SERIALLY CONNECTED AT ALTERNATE ENDS, A SECOND PLURALITY OF X COORDINATE SOLENOIDS ALSO INDUCTIVELY COUPLED TO SAID FLUX PATHS AND IN REGISTRATION WITH SAID FIRST PLURALITY OF X COORDINATE SOLENOIDS, SAID FIRST AND SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS DEFINING A COORDINATE ARRAY OF INFORMATION ADDRESS SEGMENTS ON SAID FLUX PATHS, SETTING MEANS FOR SETTING PARTICULAR ONES OF THE ADDRESS SEGMENTS DEFINED BY A SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS TO ONE OF SAID STABLE REMANENT STATES, SAID SETTING MEANS COMPRISING MEANS FOR APPLYING A BIASING CURRENT TO EACH OF THE ADDRESS SEGMENTS DEFINED BY SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS, SWITCHING MEANS FOR SWITCHING SAID PARTICULAR ONES OF SAID ADDRESS SEGMENTS TO THE OTHER OF SAID STABLE REMANENT STATES COMPRISING MEANS FOR APPLYING A FIRST PARTIAL SWITCHING CURRENT TO SAID SERIALLY CONNECTED FIRST PLURALITY OF X COORDINATE SOLENOIDS, MEANS FOR APPLYING A SECOND PARTIAL SWITCHING CIRRENT TO SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS COINCIDENTALLY WITH SAID FIRST PARTIAL SWITCHING CURRENT, AND MAGNET MEANS ARRANGED IN INDUCTIVE RELATIONSHIP WITH THE ADDRESS SEGMENTS DEFINED BY SAID SELECTED ONE OF SAID SECOND PLURALITY OF X COORDINATE SOLENOIDS OTHER THAN SAID PARTICULAR ADDRESS SEGMENTS FOR PREVENTING THE SWITCHING OF SAID LASTMENTIONED ADDRESS SEGMENTS; AND MEANS FOR DETECTING FLUX SWITCHING IN SAID FLUX PATHS.

References Cited (Backward Citations)

US2781503A Cited
FR1190683A Cited
AT205776B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-04-01 1966-10-01 1967-04-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-04-01 1970-10-01 1971-04-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-04-01 1974-10-01 1975-04-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag