Resources Contact Us Home
Method and system for detecting objects at or below the water's surface

Image Number 2 for United States Patent #5646907.

A method and system are provided for detecting objects at or below a surf of a body of water. A focused beam of amplitude varying electromagnetic radiation, e.g., a pulsed laser beam, is directed through the air towards the water's surface. Acoustic energy under the water's surface is monitored for any acoustic return that may be generated in the water as a result of the beam being incident on either an object at the water's surface or the water's surface above an object.

  Recently Added Patents
Method and system for encrypting data in a wireless communication system
Electronic device, information processing method, and storage medium
System and apparatus for control of published content
Advertising system and method
Terminal and method of controlling the same
Optical imaging device and imaging method for microscopy
Split-ring resonator creating a photonic metamaterial
  Randomly Featured Patents
Spacers for field emission displays
Digital electro-optical micrometer and gages
Rifle with two barrels
In-register data manipulation using data shift in reduced instruction set processor
Methods and apparatus to schedule uplink transmissions in wireless communication systems
Systems and methods for choreographing movement
Single-lens reflex camera
Equestrian cone jump cup
Microscope with a focusing assist apparatus
Faucet set