US3140470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error checking circuit for a plurality of parallel data transmission channels
Assignee: Honeywell Inc
•
Filing: 1958-08-04
•
Granted: 1964-07-07
•
Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Alan J Deerfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/1608; G06F11/1616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
CHECKING APPARATUS FOR A PLURALITY OF SIGNAL TRANSFER CIRCUITS, EACH OF WHICH IS ADAPTED TO FUNCTION AS AN INDEPENDENT TRANSFER CIRCUIT COUPLING DATA TO A PLURALITY OF OUTPUT MEANS, A BISTABLE CIRCUIT ELEMENT INCLUDED IN EACH OF SAID TRANSFER CIRCUITS, MEANS CONNECTED TO EACH BISTABLE CIRCUIT ELEMENT TO SWITCH SAID CIRCUIT ELEMENT TO ONE OF ITS BISTABLE STATES WHEN A SIGNAL IS TO BE TRANSFERRED THEREBY, MEANS CONNECTED TO THE OUTPUT OF EACH OF SAID TRANSFER CIRCUITS TO FEED BACK A SIGNAL WHICH HAS BEEN TRANSFERRED THEREBY TO SWITCH THE ASSOCIATED BISTABLE CIRCUIT ELEMENT TO THE OTHER BISTABLE STATE IF SAID CIRCUIT HAD BEEN IN SAID ONE BISTABLE STATE, AND MONITOR MEANS CONNECTED TO ALL OF SAID BISTABLE CIRCUIT ELEMENTS TO PRODUCE AN ERROR INDICATION IF ALL OF SAID BISTABLE CIRCUITS ARE NOT IN THE SAME STATE AT THE END OF A SIGNAL TRANSFER.
Claim 2
Dependent Claim
144 words
CHECKING APPARATUS FOR A PLURALITY OF SIGNAL TRANSFER CIRCUITS, EACH OF WHICH IS ADAPTED TO FUNCTION AS AN INDEPENDENT TRANSFER CIRCUIT COUPLING DATA TO A PLURALITY OF OUTPUT MEANS, A BISTABLE CIRCUIT ELEMENT INCLUDED IN EACH OF SAID TRANSFER CIRCUITS, MEANS CONNECTED TO EACH BISTABLE CIRCUIT ELEMENT TO SWITCH SAID CIRCUIT ELEMENT TO ONE OF ITS BISTABLE STATES WHEN A SIGNAL IS TO BE TRANSFERRED THEREBY, MEANS CONNECTED TO THE OUTPUT OF EACH OF SAID TRANSFER CIRCUITS TO FEED BACK A SIGNAL WHICH HAS BEEN TRANSFERRED THEREBY TO SWITCH THE ASSOCIATED BISTABLE CIRCUIT ELEMENT TO THE OTHER BISTABLE STATE IF SAID CIRCUIT HAD BEEN IN SAID ONE BISTABLE STATE, AND MONITOR MEANS CONNECTED TO ALL OF SAID BISTABLE CIRCUIT ELEMENTS TO PRODUCE AN ERROR INDICATION IF ALL OF SAID BISTABLE CIRCUITS ARE NOT IN THE SAME STATE AT THE END OF A SIGNAL TRANSFER.
References Cited (Backward Citations)
US2597428A
Cited
US2696599A
Cited
US2702380A
Cited
US2813149A
Cited
US2911622A
Cited
US2769971A
Cited
US2884625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |