US3317843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable frequency divider employing two cross-coupled monostable multivibratorscoupled to respective inputs of a bistable multivibrator
Assignee: Lockheed Martin Corp
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Filing: 1966-02-01
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Granted: 1967-05-02
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 David L Emmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:25
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/00006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FREQUENCY DIVIDER CIRCUIT COMPRISING: (A) INPUT AND OUTPUT LINES; (B) TWO MONOSTABLE MULTIVIBRATORS FOR RECEIVING INPUT PULSES FROM THE INPUT LINE AND GENERATING OUTPUT PULSES; (C) BISTABLE MULTIVIBRATOR FOR RECEIVING PULSES FROM SAID MONOSTABLE MULTIVIBRATORS AND PRODUCING OUTPUT PULSES; (D) EACH SAID MONOSTABLE MULTIVIBRATOR CONNECTED TO RECEIVE INHIBITING PULSES FROM THE OUTPUT OF THE OTHER SAID MONOSTABLE MULTIVIBRATOR AND FROM ONE OUTPUT OF SAID BISTABLE MULTIVIBRATOR WHEREBY ONLY ONE OF SAID TWO MONOSTABLE MULTIVIBRATORS CAN BE TRIGGERED AND RUN AT A TIME; (E) SAID OUTPUT LINE OPERABLE TO RECEIVE PULSES FROM ONLY ONE OUTPUT OF SAID BISTABLE MULTIVIBRATOR.
Claim 2
Dependent Claim
99 words
A FREQUENCY DIVIDER CIRCUIT COMPRISING: (A) INPUT AND OUTPUT LINES; (B) TWO MONOSTABLE MULTIVIBRATORS FOR RECEIVING INPUT PULSES FROM THE INPUT LINE AND GENERATING OUTPUT PULSES; (C) BISTABLE MULTIVIBRATOR FOR RECEIVING PULSES FROM SAID MONOSTABLE MULTIVIBRATORS AND PRODUCING OUTPUT PULSES; (D) EACH SAID MONOSTABLE MULTIVIBRATOR CONNECTED TO RECEIVE INHIBITING PULSES FROM THE OUTPUT OF THE OTHER SAID MONOSTABLE MULTIVIBRATOR AND FROM ONE OUTPUT OF SAID BISTABLE MULTIVIBRATOR WHEREBY ONLY ONE OF SAID TWO MONOSTABLE MULTIVIBRATORS CAN BE TRIGGERED AND RUN AT A TIME; (E) SAID OUTPUT LINE OPERABLE TO RECEIVE PULSES FROM ONLY ONE OUTPUT OF SAID BISTABLE MULTIVIBRATOR.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |