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
Laser processing machine
Device and method for quantizing and inverse quantizing LPC filters in a super-frame
Antenna for an automobile
Improving alignment target contrast in a lithographic double patterning process
All-in-one information handling system
Multi-contoured yoga support
Transactional consistency scheme
  Randomly Featured Patents
Baby health monitoring system
Fuel vapor handling system
Methods and materials for expression of a recombinant protein
Disklike recording media, a method for detecting forged disks, and anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manu
Method to avoid a laser marked area step height
Test mode setting arrangement for use in microcomputer
Cleaning shoe for a combine
Hybrid vapor-compression/liquid desiccant air conditioner
Vapor-phase growth method for semiconductor film