Patent EP0464479A1 successfully refreshed from Google Patents.
US3132325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical shift register
Assignee: General Electric Co
•
Filing: 1959-09-24
•
Granted: 1964-05-05
•
Expires: 1979-09-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Bray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:43
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/30; H; H03; H03K; H03K3/00; H03K3/02; H03K3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A SHIFT REGISTER FOR CONVERTING BINARY INFORMATION SUPPLIED THERETO IN TIMED SEQUENCE INTO INFORMATION SIMULTANEOUSLY AVALIABLE IN PARALLEL ON A PLURALITY OF OUTPUT LINES, SAID OUTPUTS BEING SHIFTABLE AT WILL TO THE NEXT SUCCEEDING OUTPUT LINES, THE COMBINATION COMPRISING A PLURALITY OF INFORMATION STORING STAGES CONNECTED IN CASCADE, EACH STAGE CONSISTING IN TURN OF THREE CASCADED ELECTRO-OPTICAL BISTABLE ELEMENTS, SAID BISTABLE ELEMENTS INCLUDING AN ELECTROLUMINESCENT MEMBER AND A PHOTOCONDUCTIVE MEMBER, AT LEAST ONE OF SAID ELECTROLUMINESCENT MEMBERS BEING ARRANGED TO PROVIDE A SIGNAL OUTPUT INDICATIVE OF THE INFORMATION STORED IN EACH STAGE, MEANS FOR ENERGIZING SAID THREE BISTABLE ELEMENTS IN ONE STAGE IN SUCCESSION IN PARTIALLY OVERLAPPING TIME INTERVALS, THE RESPECTIVE ELEMENTS OF EACH OF SAID STAGES BEING ENERGIZED SYNCHRONOUSLY, AND MEANS FOR SUPPLYING INPUT SIGNALS TO SAID REGISTER IN SYNCHRONISM WITH THE ENERGIZATION OF THE FIRST BISTABLE ELEMENT OF EACH STAGE.
Claim 2
Dependent Claim
143 words
IN A SHIFT REGISTER FOR CONVERTING BINARY INFORMATION SUPPLIED THERETO IN TIMED SEQUENCE INTO INFORMATION SIMULTANEOUSLY AVALIABLE IN PARALLEL ON A PLURALITY OF OUTPUT LINES, SAID OUTPUTS BEING SHIFTABLE AT WILL TO THE NEXT SUCCEEDING OUTPUT LINES, THE COMBINATION COMPRISING A PLURALITY OF INFORMATION STORING STAGES CONNECTED IN CASCADE, EACH STAGE CONSISTING IN TURN OF THREE CASCADED ELECTRO-OPTICAL BISTABLE ELEMENTS, SAID BISTABLE ELEMENTS INCLUDING AN ELECTROLUMINESCENT MEMBER AND A PHOTOCONDUCTIVE MEMBER, AT LEAST ONE OF SAID ELECTROLUMINESCENT MEMBERS BEING ARRANGED TO PROVIDE A SIGNAL OUTPUT INDICATIVE OF THE INFORMATION STORED IN EACH STAGE, MEANS FOR ENERGIZING SAID THREE BISTABLE ELEMENTS IN ONE STAGE IN SUCCESSION IN PARTIALLY OVERLAPPING TIME INTERVALS, THE RESPECTIVE ELEMENTS OF EACH OF SAID STAGES BEING ENERGIZED SYNCHRONOUSLY, AND MEANS FOR SUPPLYING INPUT SIGNALS TO SAID REGISTER IN SYNCHRONISM WITH THE ENERGIZATION OF THE FIRST BISTABLE ELEMENT OF EACH STAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |