US3273073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency synthesizer
Assignee: HP Inc
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Filing: 1964-02-19
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Granted: 1966-09-13
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Expires: 1984-02-19
Abstract
No abstract record available.
Inventors
- 👤 Leonard S Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:06
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/22; H03L7/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
SIGNAL APPARATUS COMPRISING: FIRST AND SECOND HARMONIC MIXES, EACH HAVING A PAIR OF INPUTS FOR PRODUCING AN OUTPUT RELATED TO THE PHASE RELATIONSHIP BETWEEN SIGNALS APPLIED TO THE INPUTS THEREOF; A FIRST SOURCE OF SIGNAL OF VARIABLE FREQUENCY HAVING AN OUTPUT WHICH IS CONNECTED TO CORRESPONDING INPUTS OF THE FIRST AND SECOND HARMONIC MIXERS FOR APPLYING SAID SIGNAL OF VARIABLE FREQUENCY THERETO, SAID FIRST SOURCE HAVING AN INPUT WHICH IS CONNECTED TO RECEIVE THE OUTPUT OF THE FIRST MIXER FOR VARYING THE FREQUENCY OF SIGNAL FROM SAID FIRST SOURCE TO MAINTAIN PHASE LOCK BETWEEN A SIGNAL APPLIED TO THE REMAINING INPUT OF THE FIRST MIXER AND A SELECTED INTEGER MULTIPLE OF THE SIGNAL OF VARIABLE FREQUENCY FROM SAID FIRST SOURCE; A SECOND SOURCE OF SIGNAL OF VARIABLE FREQUENCY HAVING AN OUTPUT WHICH IS CONNECTED TO THE REMAINING INPUT OF THE SECOND HARMONIC MIXER AND HAVING AN INPUT WHICH IS CONNECTED TO RECEIVE THE OUTPUT OF THE SECOND HARMONIC MIXER FOR ALTERING THE FREQUENCY OF SIGNAL FROM SAID SECOND SOURCE TO MAINTAIN PHASE LOCK BETWEEN THE SIGNAL THEREFROM AND A SELECTED INTEGER MULTIPLE OF THE SIGNAL FROM SAID FIRST SOURCE; AND MEANS INCLUDING THE OUTPUT OF SAID SECOND SOURCE FOR PROVIDING AN OUTPUT FREQUENCY PROPORTIONAL TO THE FREQUENCY OF SIGNAL APPLIED TO SAID REMAINING INPUT OF THE FIRST HARMONIC MIXER.
Claim 2
Dependent Claim
219 words
SIGNAL APPARATUS COMPRISING: FIRST AND SECOND HARMONIC MIXES, EACH HAVING A PAIR OF INPUTS FOR PRODUCING AN OUTPUT RELATED TO THE PHASE RELATIONSHIP BETWEEN SIGNALS APPLIED TO THE INPUTS THEREOF; A FIRST SOURCE OF SIGNAL OF VARIABLE FREQUENCY HAVING AN OUTPUT WHICH IS CONNECTED TO CORRESPONDING INPUTS OF THE FIRST AND SECOND HARMONIC MIXERS FOR APPLYING SAID SIGNAL OF VARIABLE FREQUENCY THERETO, SAID FIRST SOURCE HAVING AN INPUT WHICH IS CONNECTED TO RECEIVE THE OUTPUT OF THE FIRST MIXER FOR VARYING THE FREQUENCY OF SIGNAL FROM SAID FIRST SOURCE TO MAINTAIN PHASE LOCK BETWEEN A SIGNAL APPLIED TO THE REMAINING INPUT OF THE FIRST MIXER AND A SELECTED INTEGER MULTIPLE OF THE SIGNAL OF VARIABLE FREQUENCY FROM SAID FIRST SOURCE; A SECOND SOURCE OF SIGNAL OF VARIABLE FREQUENCY HAVING AN OUTPUT WHICH IS CONNECTED TO THE REMAINING INPUT OF THE SECOND HARMONIC MIXER AND HAVING AN INPUT WHICH IS CONNECTED TO RECEIVE THE OUTPUT OF THE SECOND HARMONIC MIXER FOR ALTERING THE FREQUENCY OF SIGNAL FROM SAID SECOND SOURCE TO MAINTAIN PHASE LOCK BETWEEN THE SIGNAL THEREFROM AND A SELECTED INTEGER MULTIPLE OF THE SIGNAL FROM SAID FIRST SOURCE; AND MEANS INCLUDING THE OUTPUT OF SAID SECOND SOURCE FOR PROVIDING AN OUTPUT FREQUENCY PROPORTIONAL TO THE FREQUENCY OF SIGNAL APPLIED TO SAID REMAINING INPUT OF THE FIRST HARMONIC MIXER.
References Cited (Backward Citations)
US2786140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |