发明名称 |
METHOD OF ALERTING MARINE MAMMALS AND OTHER MAMMALS UNDERWATER OF THE DANGER OF APPROACHING MOTOR VESSELS |
摘要 |
A method of alerting marine mammals and other mammals underwater to the danger of approaching motor vessels includes generating a pulsed acoustical signal at a predetermined source frequency and at a fixed or variable (with boat speed) sound pressure level and projecting the generated signal underwater in a highly directional manner from a motor vessel and in a direction corresponding with the direction of travel of the motor vessel or from fixed hazards which present a danger to mammals underwater; the projected pulsed acoustical signal having an underwater frequency ranging between 3 kHz and 26 kHz.
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申请公布号 |
WO9810522(A1) |
申请公布日期 |
1998.03.12 |
申请号 |
WO1996US14375 |
申请日期 |
1996.09.09 |
申请人 |
LEVIATHAN LEGACY, INC. |
发明人 |
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分类号 |
B06B1/02;(IPC1-7):H04B1/02 |
主分类号 |
B06B1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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