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US3416087A
Expired / Lapsed
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Phase-locked signal sampling circuit with adaptive search circuit
Assignee: HP Inc
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Filing: 1965-12-28
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Granted: 1968-12-10
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Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Vargiu Giacomo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:10
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03K; H03K5/00; H03K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SIGNAL CIRCUIT COMPRISING: A SOURCE OF SAMPLING SIGNAL; A SAMPLER CONNECTED TO RECEIVE AN APPLIED SIGNAL AND SAMPLING SIGNAL FROM SAID SOURCE FOR PRODUCING A SAMPLE PULSE HAVING AN AMPLITUDE RELATED TO THE AMPLITUDE OF THE APPLIED SIGNAL AT THE OCCURENCE OF A SAMPLING SIGNAL; A SOURCE OF REFERENCE FREQUENCY; MEANS CONNECTED TO RECEIVE THE REFERENCE FREQUENCY AND THE SAMPLE PULSES FROM SAID SAMPLER FOR PRODUCING A FIRST CONTROL SIGNAL RELATED TO THE PHASE RELATIONSHIP BETWEEN THE REFERENCE FREQUENCY AND A SELECTED SIGNAL COMPONENT OF VARIATION IN THE AMPLITUDE OF SAID SAMPLE PULSES; CIRCUIT MEANS RESPONSIVE TO A SELECTED SIGNAL COMPONENT OF THE VARIATIONS IN THE AMPLITUDE OF SAID SAMPLE PULSES FOR PRODUCING A SECOND CONTROL SIGNAL RELATED TO THE FREQUENCY OF THE SELECTED SIGNAL COMPONENT; AND MEANS FOR APPLYING THE COMBINATION OF SAID FIRST AND SECOND CONTROL SIGNALS TO SAID SOURCE OF SAMPLING SIGNALS FOR ALTERING THE REPETITION FREQUENCY THEREOF.
Claim 2
Dependent Claim
152 words
A SIGNAL CIRCUIT COMPRISING: A SOURCE OF SAMPLING SIGNAL; A SAMPLER CONNECTED TO RECEIVE AN APPLIED SIGNAL AND SAMPLING SIGNAL FROM SAID SOURCE FOR PRODUCING A SAMPLE PULSE HAVING AN AMPLITUDE RELATED TO THE AMPLITUDE OF THE APPLIED SIGNAL AT THE OCCURENCE OF A SAMPLING SIGNAL; A SOURCE OF REFERENCE FREQUENCY; MEANS CONNECTED TO RECEIVE THE REFERENCE FREQUENCY AND THE SAMPLE PULSES FROM SAID SAMPLER FOR PRODUCING A FIRST CONTROL SIGNAL RELATED TO THE PHASE RELATIONSHIP BETWEEN THE REFERENCE FREQUENCY AND A SELECTED SIGNAL COMPONENT OF VARIATION IN THE AMPLITUDE OF SAID SAMPLE PULSES; CIRCUIT MEANS RESPONSIVE TO A SELECTED SIGNAL COMPONENT OF THE VARIATIONS IN THE AMPLITUDE OF SAID SAMPLE PULSES FOR PRODUCING A SECOND CONTROL SIGNAL RELATED TO THE FREQUENCY OF THE SELECTED SIGNAL COMPONENT; AND MEANS FOR APPLYING THE COMBINATION OF SAID FIRST AND SECOND CONTROL SIGNALS TO SAID SOURCE OF SAMPLING SIGNALS FOR ALTERING THE REPETITION FREQUENCY THEREOF.
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |