Resources Contact Us Home
Submarine simulating sonar beacon

Image Number 10 for United States Patent #4198703.

1. In a submarine simulation sonar beacon adapted for predetermined maneuing under water, a hull having a forward and an aft transducer for receiving an acoustical signal within said water, means disposed in said hull connected to said forward and aft transducers for comparing the time relationship of arrival of said acoustical signal thereat, means coupled to said comparing means for generating an output signal having a characteristic which is a function of said time relationship, means coupled to said generating means for amplitude and highlight modulation of said output signal, and transmitting transducer means mounted on said hull and coupled to said last mentioned means for broadcasting said modulated signal through said water.

  Recently Added Patents
System for the secure management of digitally controlled locks, operating by means of crypto acoustic credentials
Vehicle drive control system
Novelty snacks and method of manufacture of same
Fingerprinting apparatus, system, and method
Semiconductor device
Method and apparatus for editing a program on an optical disc
System and method for storing redundant information
  Randomly Featured Patents
Vehicle windshield wiper-light control system incorporating daytime running light mode
Internet protocol address allocation device and method
Heavy duty electric pump control unit
Active matrix electroluminescent display devices, and their manufacture
Multi-step channel boosting to reduce channel to floating gate coupling in memory
Ice detector configuration for improved ice detection at near freezing conditions
Fused tricyclic silyl compounds and methods of use thereof for the treatment of viral diseases
Variable feel side stick controller
Unloader conveyor for a blanking die
Aquarium filter housing with rounded bottom