Patent US3309650A successfully refreshed from Google Patents.
US3309650A
Expired / Lapsed
US
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Pulse-echo sounder system
Assignee: ROSS LAB Inc
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Filing: 1963-09-24
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Granted: 1967-03-14
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Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Wayne M Ross
- 👤 John W Dudley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:26
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/56; G01S7/60; G01S15/00; G01S15/02; G01S15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PULSE-ECHO SYSTEM HAVING A PULSE-ECHO RECEIVER AND A DISPLAY MEANS THEREIN FOR INDICATING RECEIVED SIGNALS OF DIFFERENT ORDERS OF MAGNITUDE, MEANS TO ENHANCE THE INDICATIONS OF RECEIVED SIGNALS OF A SELECTED GENERAL ORDER OF MAGNITUDE IN PREFERENCE TO SIGNALS OF A DIFFERENT ORDER OF MAGNITUDE, INCLUDING AMPLIFIER MEANS OPERABLE TO LIMIT THE MAGNITUDE OF RECEIVED SIGNALS BEFORE APPLICATION THEREOF TO SAID DISPLAY MEANS, AND CLAMPING CIRCUIT MEANS OPERABLE IN RESPONSE TO RECEIVED SIGNALS TO DECREASE THE MAGNITUDE OF SUCH LIMITED SIGNALS BY AMOUNTS WHICH INCREASE WITH INCREASE OF RECEIVED SIGNAL STRENGTH, SAID CLAMPING CIRCUIT MEANS INCLUDING MEANS ADJUSTABLE AT WILL THEREIN TO VARY ITS GAIN AND SIMULTANEOUSLY TO VARY ITS THRESHOLD LEVEL OF RESPONSE TO RECEIVED SIGNALS, WHEREBY SUCH GAIN IS INCREASED AS THRESHOLD LEVEL IS DECREASED.
Claim 2
Dependent Claim
129 words
IN A PULSE-ECHO SYSTEM HAVING A PULSE-ECHO RECEIVER AND A DISPLAY MEANS THEREIN FOR INDICATING RECEIVED SIGNALS OF DIFFERENT ORDERS OF MAGNITUDE, MEANS TO ENHANCE THE INDICATIONS OF RECEIVED SIGNALS OF A SELECTED GENERAL ORDER OF MAGNITUDE IN PREFERENCE TO SIGNALS OF A DIFFERENT ORDER OF MAGNITUDE, INCLUDING AMPLIFIER MEANS OPERABLE TO LIMIT THE MAGNITUDE OF RECEIVED SIGNALS BEFORE APPLICATION THEREOF TO SAID DISPLAY MEANS, AND CLAMPING CIRCUIT MEANS OPERABLE IN RESPONSE TO RECEIVED SIGNALS TO DECREASE THE MAGNITUDE OF SUCH LIMITED SIGNALS BY AMOUNTS WHICH INCREASE WITH INCREASE OF RECEIVED SIGNAL STRENGTH, SAID CLAMPING CIRCUIT MEANS INCLUDING MEANS ADJUSTABLE AT WILL THEREIN TO VARY ITS GAIN AND SIMULTANEOUSLY TO VARY ITS THRESHOLD LEVEL OF RESPONSE TO RECEIVED SIGNALS, WHEREBY SUCH GAIN IS INCREASED AS THRESHOLD LEVEL IS DECREASED.
References Cited (Backward Citations)
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US3094681A
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US2897359A
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US3098210A
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US3109154A
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |