US5305286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistatic/monostatic sonar fence
Assignee: Sonetech Corp
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Filing: 1992-05-21
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Granted: 1994-04-19
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Expires: 2012-05-21
Abstract
Abstract A sonar system has at least two separated bottom-mounted acoustic modules, each module including a projector for generating horizontal sound beam, a vertical line receive array for monostatic and bistatic detection, and a high frequency, upward-directed transducer for providing a steerable vertical beam to ensure full water column coverage by the use of surface reflections to minimize shadowing caused by high relief bottom topography.
Inventors
- 👤 Harvey C. Woodsum
- 👤 Joseph J. Stapleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:31
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/003; G01S15/02; G01S15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A sonar system comprising at least two separate bottom-mounted acoustic modules, each module including: a projector for generating horizontal parametric acoustic beam; a vertical line receive array for monostatic and bistatic detection; and an upward-directed transducer for providing a steerable vertical acoustic beam to ensure full water column coverage by the use of surface reflections to minimize shadowing caused by relief bottom topography.
Claim 2
Dependent Claim
63 words
A sonar system comprising at least two separate bottom-mounted acoustic modules, each module including: a projector for generating horizontal parametric acoustic beam; a vertical line receive array for monostatic and bistatic detection; and an upward-directed transducer for providing a steerable vertical acoustic beam to ensure full water column coverage by the use of surface reflections to minimize shadowing caused by relief bottom topography.
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) | 1997-04-18 | 1997-10-18 | 1998-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-18 | 2001-10-18 | 2002-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-18 | 2005-10-18 | 2006-04-19 | $7700.00 | Window Closed / Lapsed |