Patent US3229080A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3229080A Expired / Lapsed US ⏱️ 0.0 years remaining

Digital computing systems

Assignee: International Business Machines Corp
•
Filing: 1962-10-19
•
Granted: 1966-01-11
•
Expires: 1982-10-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 James E Ward

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:37
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/57; G06F2207/00; G06F2207/38; G06F2207/48; G06F2207/4802

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 188 words
A CIRCUIT FOR CONTROLLABLY TIME SHIFTING INPUT PULSES REPRESENTING DECIMAL VALUES IN THE TIME DOMAIN IN RESPONSE TO INPUT DECIMAL VALUES AND COMPRISING: FOUR BISTABLE ELEMENTS, EACH COUPLED TO RESPOND TO A DIFFERENT ONE OF THE INPUT DECIMAL VALUES IN A 1, 2, 3, 3'' CODE, AT LEAST EIGHT GATING CIRCUITS, FOUR INDIVIDUAL DELAY CIRCUITS, EACH OF THE DELAY CIRCUITS BEING ASSOCIATED WITH A DIFFERENT ONE OF THE BISTABLE ELEMENTS AND EACH HAVING A CORRESPONDING ONE, TWO OR THREE-VALUED TIME DELAY INCREMENT, MEANS INTERCONNECTING THE SUCCESSIVE DELAY CIRCUITS IN AN ALTERNATING SERIES RELATIONSHIP WITH A FIRST GROUP OF FOUR OF THE EIGHT GATING CIRCUITS, SAID FIRST GROUP OF FOUR GATING CIRCUITS EACH BEING CONDITIONED BY A SELECTED STATE OF A DIFFERENT ONE OF THE BISTABLE ELEMENTS, SAID MEANS INTERCONNECTING A SECOND GROUP OF FOUR OF THE GATING ELEMENTS TO THE DIFFERENT DELAY CIRCUITS, EACH ONE OF THE SECOND GROUP OF GATING CIRCUIT BEING COUPLED TO BE CONTROLLED BY THE ALTERNATE STATE OF A DIFFERENT ONE OF THE BISTABLE ELEMENTS, AND EACH BEING COUPLED TO PROVIDE A BYPASS AROUND THE ASSOCIATED DELAY CIRCUIT TO THE NEXT SUCCEEDING DELAY CIRCUIT.
Claim 2
Dependent Claim 120 words
THE INVENTION, AS SET FORTH IN CLAIM 9, INCLUDING, IN ADDITION: A FIFTH BISTABLE ELEMENT, A FIFTH DELAY CIRCUIT, THE FIFTH DELAY CIRCUIT PROVIDING AN ADDITIONAL SINGLE TIME DELAY INCREMENT, A PAIR OF GATING ELEMENTS, EACH COUPLED TO BE CONTROLLED BY A DIFFERENT STATE OF THE ADDED BISTABLE ELEMENT, ONE OF THE GATING ELEMENTS BEING COUPLED TO RECEIVE SIGNALS FROM THE PREVIOUS DELAY CIRCUIT AND TO BYPASS THE ADDED DELAY CIRCUIT, THE OTHER OF THE GATING ELEMENTS BEING COUPLED TO RECEIVE SIGNALS FROM THE PREVIOUS DELAY CIRCUIT AND TO COUPLED SAID SIGNALS TO THE ADDED DELAY CIRCUIT, AND SAID CIRCUIT FURTHER INCLUDING MEANS COUPLED TO THE FOUR BISTABLE ELEMENTS FOR REVERSING THE STATES THEREOF TO PROVIDE A NINES COMPLEMENT VALUE.

References Cited (Backward Citations)

US2429228A Cited
US2782305A Cited
US2936116A Cited
US2970766A Cited
USRE24477E Cited
US2940670A Cited
US3017096A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-10 1969-07-12 1970-01-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-10 1973-07-12 1974-01-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-10 1977-07-12 1978-01-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag