US3341808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telemetering apparatus
Assignee: Ambac International Corp
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Filing: 1965-10-12
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Granted: 1967-09-12
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Expires: 1985-10-12
Abstract
No abstract record available.
Inventors
- 👤 Levin Morris
- 👤 Raymond A Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:59
CPC Classifications
H; H04; H04B; H04B11/00; G; G01; G01H; G01H5/00; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
APPARATUS FOR TRANSMITTING INDICATIONS OF VELOCITY OF ACOUSTICAL WAVES IN A MEDIUM COMPRISING: MEANS FOR MEASURING THE VELOCITY OF ACOUSTICAL WAVES IN SAID MEDIUM AND FOR PRODUCING A SERIES OF OUTPUT SIGNALS AT A FREQUENCY INDICATIVE OF SAID VELOCITY, A FIXED-FREQUENCY SIGNAL GENERATOR HAVING AN OUTPUT SIGNAL OF A KNOWN FREQUENCY, AN AMPLITUDE MODULATOR RESPONSIVE TO SAID VELOCITYINDICATING OUTPUT SIGNALS AND SAID FIXED-FREQUENCY OUTPUT SIGNAL FOR MODULATING THE AMPLITUDE OF SAID VELOCITY-INDICATING OUTPUT SIGNALS AT THE RATE OF SAID FIXED-FREQUENCY OUTPUT SIGNAL TO PROVIDE A MODULATED SIGNAL, AND TRANSDUCER MEANS RESPONSIVE TO SAID MODULATED SIGNAL FOR TRANSMITTING SAID MODULATED SIGNAL INTO SAID MEDIUM AS AN ACOUSTICAL SIGNAL, WHEREBY SAID ACOUSTICAL SIGNAL PROVIDES A CONTINUOUS INDICATION OF THE VELOCITY OF ACOUSTICAL WAVES IN SAID MEDIUM AND PROVIDES A CONTINUOUS FIXED-FREQUENCY SIGNAL FOR COMPARISON AND CORRECTION OF THE VELOCITY OF ACOUSTICAL WAVE INFORMATION FOR DOPPLER EFFECT OF SAID ACOUSTICAL SIGNAL IN TRAVELING TO A RECEIVER.
Claim 2
Dependent Claim
153 words
APPARATUS FOR TRANSMITTING INDICATIONS OF VELOCITY OF ACOUSTICAL WAVES IN A MEDIUM COMPRISING: MEANS FOR MEASURING THE VELOCITY OF ACOUSTICAL WAVES IN SAID MEDIUM AND FOR PRODUCING A SERIES OF OUTPUT SIGNALS AT A FREQUENCY INDICATIVE OF SAID VELOCITY, A FIXED-FREQUENCY SIGNAL GENERATOR HAVING AN OUTPUT SIGNAL OF A KNOWN FREQUENCY, AN AMPLITUDE MODULATOR RESPONSIVE TO SAID VELOCITYINDICATING OUTPUT SIGNALS AND SAID FIXED-FREQUENCY OUTPUT SIGNAL FOR MODULATING THE AMPLITUDE OF SAID VELOCITY-INDICATING OUTPUT SIGNALS AT THE RATE OF SAID FIXED-FREQUENCY OUTPUT SIGNAL TO PROVIDE A MODULATED SIGNAL, AND TRANSDUCER MEANS RESPONSIVE TO SAID MODULATED SIGNAL FOR TRANSMITTING SAID MODULATED SIGNAL INTO SAID MEDIUM AS AN ACOUSTICAL SIGNAL, WHEREBY SAID ACOUSTICAL SIGNAL PROVIDES A CONTINUOUS INDICATION OF THE VELOCITY OF ACOUSTICAL WAVES IN SAID MEDIUM AND PROVIDES A CONTINUOUS FIXED-FREQUENCY SIGNAL FOR COMPARISON AND CORRECTION OF THE VELOCITY OF ACOUSTICAL WAVE INFORMATION FOR DOPPLER EFFECT OF SAID ACOUSTICAL SIGNAL IN TRAVELING TO A RECEIVER.
Claim 3
Dependent Claim
190 words
RECEIVER APPARATUS FOR RECEIVING AN ACOUSTICAL SIGNAL TRANSMITTED FROM DIFFERENT DEPTHS IN WATER, SAID SIGNAL COMPRISING A CARRIER WAVE INDICATIVE OF THE VELOCITY OF ACOUSTICAL WAVES IN SAID WATER AND AMPLITUDE MODULATED BY A NOMIALLY FIXED-FREQUENCY SIGNAL, SAID ACOUSTICAL SIGNAL BEING SUBJECT TO DOPPLER SHIFT IN FREQUENCY, SAID APPARATUS COMPRISING: ELECTRO-ACOUSTICAL TRANSDUCER MEANS FOR RECEIVING SAID ACOUSTICAL SIGNAL AND FOR CONVERTING SAID ACOUSTICAL SIGNAL TO AN ELECTRICAL SIGNAL; MEANS FOR DETECTING SAID FIXED-FREQUENCY MODULATION OF SAID ELECTRICAL SIGNAL AND FRO PROVIDING AN OUTPUT SIGNAL REPRESENTATIVE OF SAID FIXED-FREQUENCY; FIRST FREQUENCY DISCRIMINATOR MEANS RESPONSIVE TO SAID FIXED-FREQUENCY OUTPUT SIGNAL FOR PRODUCING AN OUTPUT VOLTAGE RELATED TO CHANGES IN FREQUENCY OF SAID FIXED-FREQUENCY SIGNAL DUE TO DOPPLER EFFECT IN SAID ACOUSTICAL SIGNAL TRAVELING THROUGH SAID WATER TO SAID RECEIVER; SECOND FREQUENCY DISCRIMINATOR MEANS RESPONSIVE TO SAID CARRIER WAVE COMPONENT OF SAID ELECTRICAL SIGNAL FOR PRODUCING AN OUTPUT VOLTAGE VARYING IN ACCORDANCE WITH CHANGES IN THE FREQUENCY OF SAID CARRIER WAVE; MEANS FOR MODIFYING SAID OUTPUT OF SAID SEECOND DISCRIMINATOR IN ACCORDANCE WITH SAID OUTPUT OF SAID FIRST DISCRIMINATOR FOR DOPPLER ERROR INTROSAID SECOND DISCRIMINATOR FOR DOPPLER ERROR INTRODUCED IN SAID ACOUSTICAL SIGNAL.
Claim 4
Dependent Claim
190 words
RECEIVER APPARATUS FOR RECEIVING AN ACOUSTICAL SIGNAL TRANSMITTED FROM DIFFERENT DEPTHS IN WATER, SAID SIGNAL COMPRISING A CARRIER WAVE INDICATIVE OF THE VELOCITY OF ACOUSTICAL WAVES IN SAID WATER AND AMPLITUDE MODULATED BY A NOMIALLY FIXED-FREQUENCY SIGNAL, SAID ACOUSTICAL SIGNAL BEING SUBJECT TO DOPPLER SHIFT IN FREQUENCY, SAID APPARATUS COMPRISING: ELECTRO-ACOUSTICAL TRANSDUCER MEANS FOR RECEIVING SAID ACOUSTICAL SIGNAL AND FOR CONVERTING SAID ACOUSTICAL SIGNAL TO AN ELECTRICAL SIGNAL; MEANS FOR DETECTING SAID FIXED-FREQUENCY MODULATION OF SAID ELECTRICAL SIGNAL AND FRO PROVIDING AN OUTPUT SIGNAL REPRESENTATIVE OF SAID FIXED-FREQUENCY; FIRST FREQUENCY DISCRIMINATOR MEANS RESPONSIVE TO SAID FIXED-FREQUENCY OUTPUT SIGNAL FOR PRODUCING AN OUTPUT VOLTAGE RELATED TO CHANGES IN FREQUENCY OF SAID FIXED-FREQUENCY SIGNAL DUE TO DOPPLER EFFECT IN SAID ACOUSTICAL SIGNAL TRAVELING THROUGH SAID WATER TO SAID RECEIVER; SECOND FREQUENCY DISCRIMINATOR MEANS RESPONSIVE TO SAID CARRIER WAVE COMPONENT OF SAID ELECTRICAL SIGNAL FOR PRODUCING AN OUTPUT VOLTAGE VARYING IN ACCORDANCE WITH CHANGES IN THE FREQUENCY OF SAID CARRIER WAVE; MEANS FOR MODIFYING SAID OUTPUT OF SAID SEECOND DISCRIMINATOR IN ACCORDANCE WITH SAID OUTPUT OF SAID FIRST DISCRIMINATOR FOR DOPPLER ERROR INTROSAID SECOND DISCRIMINATOR FOR DOPPLER ERROR INTRODUCED IN SAID ACOUSTICAL SIGNAL.
References Cited (Backward Citations)
US3133261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |