Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of operating a continuous wave sonar system










Image Number 3 for United States Patent #6128249.

An improved method is provided for operating a continuous wave sonar syst At time of transmission, a plurality of acoustic pulses are transmitted one right after another. Each pulse has a unique frequency and is of a time duration that is approximately one second long. The pulses are characterized by a separation frequency representing a difference in frequency between numerically successive frequencies. However, the pulses are staggered with respect to frequency. In the preferred embodiment, each successively transmitted one of the pulses is separated in frequency from an immediately preceding transmitted one of the pulses by an amount greater than the separation frequency. These multiple pulses seperated in time and in frequency, reduce the effects of frequency speading caused by the medium, resulting in a sonar with enhanced detection performance.








 
 
  Recently Added Patents
Compounds and compositions for treating chemical warfare agent-induced injuries
Polymorphic forms of 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo- -1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing t
Thwarting keyloggers using proxies
Methods and systems for automated backups and recovery on multi-os platforms using controller-based snapshots
System for providing access to playable media
Substituted phenylsulfur trifluoride and other like fluorinating agents
Combination for composite layered chip package
  Randomly Featured Patents
Fast liquid crystal switching unit
Purification of polymer solutions
Flat heat transferring device and method of fabricating the same
Efficient multi-chip GPU
Package for rod-like smoking articles
Apparatus and method for an anodic oxidation biocidal treatment
Method of controlling feed of alumina to an aluminum electrolytic cell
Magnetizing magnet
Chrysanthemum plant named Peach Cantata
High energy gamma probe with position sensing capability