US3320546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency controlled frequency divider
Assignee: HP Inc
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Filing: 1965-08-19
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Granted: 1967-05-16
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Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Allen
- 👤 Alan S Bagley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:42
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
SIGNAL DIVIDER APPARATUS COMPRISING: A PAIR OF MIXERS EACH HAVING AN OUTPUT AND A PAIR OF INPUTS; AN INPUT TERMINAL FOR RECEIVING AN APPLIED SIGNAL; MEANS CONNECTED TO SAID INPUT TERMINAL AND TO ONE INPUT OF EACH OF SAID MIXERS FOR APPLYING THERETO A SIGNAL HAVING A FREQUENCY RELATED TO THE FREQUENCY OF A SIGNAL APPEARING AT SAID INPUT TERMINAL; A SIGNAL-CONTROLLED SOURCE OF REPETITIVE TIME-VARYING SIGNAL CONNECTED TO ANOTHER INPUT OF ONE OF SAID MIXERS; MEANS CONNECTING THE OUTPUT OF SAID ONE MIXER TO SAID SOURCE FOR APPLYING A SIGNAL THERETO TO CONTROL THE REPETITION RATE OF VARIATION WITH TIME OF THE SIGNAL FROM SAID SOURCE TO MAINTAIN PHASE LOCK BETWEEN THE SIGNAL AT SAID ONE INPUT OF SAID ONE MIXER AND AN INTEGER RELATED FREQUENCY COMPONENT OF THE SIGNAL FROM SAID SOURCE APPLIED TO SAID MIXER; CIRCUIT MEANS HAVING A PAIR OF INPUTS AND AN OUTPUT CONNECTED TO ANOTHER INPUT OF THE OTHER MIXER FOR APPLYING A SIGNAL THERETO HAVING A FREQUENCY WHICH IS OFFSET FROM THE FREQUENCY OF SIGNAL APPEARING AT ONE OF THE INPUTS OF THE CIRCUIT MEANS BY A SELECTED FREQUENCY VALUE WHICH IS RELATED TO THE FREQUENCY OF SIGNAL APPEARING AT THE OTHER OF THE INPUTS OF THE CIRCUIT MEANS; MEANS CONNECTING SAID SOURCE TO ONE INPUT OF SAID CIRCUIT MEANS; AND MEANS CONNECTED TO SAID SOURCE AND TO THE OTHER INPUT OF SAID CIRCUIT MEANS FOR APPLYING THERETO AN INTEGER RELATED FREQUENCY COMPONENT OF THE SIGNAL FROM SAID SOURCE.
Claim 2
Dependent Claim
246 words
SIGNAL DIVIDER APPARATUS COMPRISING: A PAIR OF MIXERS EACH HAVING AN OUTPUT AND A PAIR OF INPUTS; AN INPUT TERMINAL FOR RECEIVING AN APPLIED SIGNAL; MEANS CONNECTED TO SAID INPUT TERMINAL AND TO ONE INPUT OF EACH OF SAID MIXERS FOR APPLYING THERETO A SIGNAL HAVING A FREQUENCY RELATED TO THE FREQUENCY OF A SIGNAL APPEARING AT SAID INPUT TERMINAL; A SIGNAL-CONTROLLED SOURCE OF REPETITIVE TIME-VARYING SIGNAL CONNECTED TO ANOTHER INPUT OF ONE OF SAID MIXERS; MEANS CONNECTING THE OUTPUT OF SAID ONE MIXER TO SAID SOURCE FOR APPLYING A SIGNAL THERETO TO CONTROL THE REPETITION RATE OF VARIATION WITH TIME OF THE SIGNAL FROM SAID SOURCE TO MAINTAIN PHASE LOCK BETWEEN THE SIGNAL AT SAID ONE INPUT OF SAID ONE MIXER AND AN INTEGER RELATED FREQUENCY COMPONENT OF THE SIGNAL FROM SAID SOURCE APPLIED TO SAID MIXER; CIRCUIT MEANS HAVING A PAIR OF INPUTS AND AN OUTPUT CONNECTED TO ANOTHER INPUT OF THE OTHER MIXER FOR APPLYING A SIGNAL THERETO HAVING A FREQUENCY WHICH IS OFFSET FROM THE FREQUENCY OF SIGNAL APPEARING AT ONE OF THE INPUTS OF THE CIRCUIT MEANS BY A SELECTED FREQUENCY VALUE WHICH IS RELATED TO THE FREQUENCY OF SIGNAL APPEARING AT THE OTHER OF THE INPUTS OF THE CIRCUIT MEANS; MEANS CONNECTING SAID SOURCE TO ONE INPUT OF SAID CIRCUIT MEANS; AND MEANS CONNECTED TO SAID SOURCE AND TO THE OTHER INPUT OF SAID CIRCUIT MEANS FOR APPLYING THERETO AN INTEGER RELATED FREQUENCY COMPONENT OF THE SIGNAL FROM SAID SOURCE.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |