US3171406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart beat frequency analyzer
Assignee: Melpar Inc
•
Filing: 1961-09-26
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Granted: 1965-03-02
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jerome N Baum
- 👤 Samuel J Campanella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:47
CPC Classifications
A; A61; A61B; A61B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A SYSTEM TO AID IN THE DETECTION OF HEART AILMENTS COMPRISING MEANS FOR TRANSDUCING UNDULATIONS OF THE HEART ASSOCIATED WITH A HEART BEAT INTO A SIGNAL COMMENSURATE WITH SAID UNDULATIONS, FREQUENCY ANALYZER MEANS RESPONSIVE TO SAID SIGNAL FOR SELECTIVELY PASSING FREQUENCIES OF SAID SIGNAL IN PREDETERMINED RANGES, SAID ANALYZER INCLUDING N FILTERS RESPONSIVE TO SAID SOURCE, SAID FILTERS TOGETHER HAVING PASS CHARACTERISTICS COVERING THE FREQUENCY BAND FI TO FN AND MEANS FOR RECORDING A HEART BEAT REPLICA ENVELOPE CONTAINING THE FREQUENCY COMPONENT OF SAID SIGNAL PASSED BY SAID FREQUENCY ANALYZER MEANS, MEANS SELECTIVELY CONNECTING THE OUTPUTS OF SAID FILTERS TO SAID RECORDING MEANS, AND CONNECTING MEANS AND THE RESPONSES OF SAID FILTERS BEING ARRANGED SUCH THAT ALL THE ENERGY DERIVING FROM SAID FILTERS WITHIN THE BAND FK TO FN IS SUPPLIED TO SAID RECORDING MEANS, WHERE FK IS THE CUT OFF FREQUENCY AT ONE END OF THE KTH FILTER AND K=1,2,...N.
Claim 2
Independent Claim
151 words
A SYSTEM TO AID IN THE DETECTION OF HEART AILMENTS COMPRISING MEANS FOR TRANSDUCING UNDULATIONS OF THE HEART ASSOCIATED WITH A HEART BEAT INTO A SIGNAL COMMENSURATE WITH SAID UNDULATIONS, FREQUENCY ANALYZER MEANS RESPONSIVE TO SAID SIGNAL FOR SELECTIVELY PASSING FREQUENCIES OF SAID SIGNAL IN PREDETERMINED RANGES, SAID ANALYZER INCLUDING N FILTERS RESPONSIVE TO SAID SOURCE, SAID FILTERS TOGETHER HAVING PASS CHARACTERISTICS COVERING THE FREQUENCY BAND FI TO FN AND MEANS FOR RECORDING A HEART BEAT REPLICA ENVELOPE CONTAINING THE FREQUENCY COMPONENT OF SAID SIGNAL PASSED BY SAID FREQUENCY ANALYZER MEANS, MEANS SELECTIVELY CONNECTING THE OUTPUTS OF SAID FILTERS TO SAID RECORDING MEANS, AND CONNECTING MEANS AND THE RESPONSES OF SAID FILTERS BEING ARRANGED SUCH THAT ALL THE ENERGY DERIVING FROM SAID FILTERS WITHIN THE BAND FK TO FN IS SUPPLIED TO SAID RECORDING MEANS, WHERE FK IS THE CUT OFF FREQUENCY AT ONE END OF THE KTH FILTER AND K=1,2,...N.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |