Resources Contact Us Home
Digital beamsteering for a parametric scanning sonar system

Image Number 3 for United States Patent #4190818.

Digital beamsteering for a parametric scanning sonar steers a nonlinear, ulated signal of a single high frequency by appropriately delaying and/or varying the phase of the signal as it enters each of a plurality of elements in an array. The sonar beam can be steered electronically over a wide range of angles.

  Recently Added Patents
Dispensing of restricted goods
Vehicle, toy, and/or replicas thereof
Image processing apparatus, image display apparatus, and image processing method
Coated article and method for making the same
Breathing mask
Devices and methods for the production of coaxial microfibers and nanofibers
  Randomly Featured Patents
Method and apparatus for synchronizing a DS-CDMA receiver
Dynamically adaptive fuzzy interval controller
Replaceable roller bogie for document feeding apparatus
Pharmaceutical formulations containing prostaglandin
Method and system for fabricating liquid crystal cells
Low phase noise, wide tune range saw oscillators and methods of operating the same
Supersonic airplane with subsonic boost engine means and method of operating the same
Ink recorder including a sealing member for an ink storage section
Directional coupler
Side bearing assembly