Bistatic/monostatic sonar fence
Patent 5305286 Issued on April 19, 1994. Estimated Expiration Date: 
May 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesEcho sounder transmitting radiant energy at two frequencies Saturation limited parametric sonar source Choke point bistatic sonar Platform carried bistatic sonar Patent #: 5237541 InventorsAssigneeApplicationNo. 887210 filed on 05/21/1992US Classes:367/92Parametric sonarExaminersPrimary: Pihulic, Daniel T.Attorney, Agent or FirmInternational ClassG01S 015/00AbstractA 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.Field of SearchParametric sonar | |
