US3381232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gated latch
Assignee: International Business Machines Corp
•
Filing: 1964-12-02
•
Granted: 1968-04-30
•
Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Gerhard E Hoernes
- 👤 Gerald A Maley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/027; H03K3/037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A GATED LATCH COMPRISING: A SET-RESET LATCH OF THE TYPE HAVING FIRST AND SECOND INPUT TERMINALS AND OPERABLE TO HOLD ITS EXISTING OUTPUT STATE WHEN SAID FIRST INPUT TERMINAL HAS A ONE VALUE AND SAID SECOND INPUT TERMINAL HAS A ZERO VALUE; AND OPERABLE TO HAVE SET AND RESET OUTPUT STATES IN RESPONSE TO OTHER COMBINATIONS OF VALUES AT SAID TERMINALS; A FIRST LOGIC BLOCK CONNECTED TO RECEIVE A SET SIGNAL AND A CONTROL SIGNAL AND TO ENERGIZE ONE OF SAID LATCH INPUT TERMINALS, AND A SECOND LOGIC BLOCK CONNECTED TO RECEIVE A RESET SIGNAL AND SAID CONTROL SIGNAL AND TO ENERGIZE THE OTHER OF SAID LATCH INPUT TERMINALS; THE LOGIC BLOCK CONNECTED TO SAID LATCH FIRST INPUT TERMINAL HAVING A LOGIC FUNCTION TO PRODUCE A ONE VALUE WHEN SAID CONTROL SIGNAL IS IN A FIRST STATE AND TO PRODUCE ONE AND ZERO VALUES ACCORDING TO ITS OTHER INPUT WHEN SAID CONTROL SIGNAL IS IN ITS SECOND STATE, THE LOGIC BLOCK CONNECTED TO SAID LATCH SECOND INPUT TERMINAL HAVING A LOGIC FUNCTION TO PRODUCE A ZERO VALUE WHEN SAID CONTROL SIGNAL IS IN SAID FIRST STATE AND TO PRODUCE ONE AND ZERO VALUES ACCORDING TO ITS OTHER INPUT WHEN SAID CONTROL SIGNAL IS IN ITS SECOND STATE.
Claim 2
Dependent Claim
207 words
A GATED LATCH COMPRISING: A SET-RESET LATCH OF THE TYPE HAVING FIRST AND SECOND INPUT TERMINALS AND OPERABLE TO HOLD ITS EXISTING OUTPUT STATE WHEN SAID FIRST INPUT TERMINAL HAS A ONE VALUE AND SAID SECOND INPUT TERMINAL HAS A ZERO VALUE; AND OPERABLE TO HAVE SET AND RESET OUTPUT STATES IN RESPONSE TO OTHER COMBINATIONS OF VALUES AT SAID TERMINALS; A FIRST LOGIC BLOCK CONNECTED TO RECEIVE A SET SIGNAL AND A CONTROL SIGNAL AND TO ENERGIZE ONE OF SAID LATCH INPUT TERMINALS, AND A SECOND LOGIC BLOCK CONNECTED TO RECEIVE A RESET SIGNAL AND SAID CONTROL SIGNAL AND TO ENERGIZE THE OTHER OF SAID LATCH INPUT TERMINALS; THE LOGIC BLOCK CONNECTED TO SAID LATCH FIRST INPUT TERMINAL HAVING A LOGIC FUNCTION TO PRODUCE A ONE VALUE WHEN SAID CONTROL SIGNAL IS IN A FIRST STATE AND TO PRODUCE ONE AND ZERO VALUES ACCORDING TO ITS OTHER INPUT WHEN SAID CONTROL SIGNAL IS IN ITS SECOND STATE, THE LOGIC BLOCK CONNECTED TO SAID LATCH SECOND INPUT TERMINAL HAVING A LOGIC FUNCTION TO PRODUCE A ZERO VALUE WHEN SAID CONTROL SIGNAL IS IN SAID FIRST STATE AND TO PRODUCE ONE AND ZERO VALUES ACCORDING TO ITS OTHER INPUT WHEN SAID CONTROL SIGNAL IS IN ITS SECOND STATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |