ACOUSTIC ECHO SOUNDERS MEASURING

Brand Owner Address Description
AMACS Atlas Elektronik GmbH Sebaldsbrücker Heerstrasse 235 Bremen 28309 Germany Acoustic echo sounders for measuring distances for underwater sound; acoustic positioning and control apparatus, in particular electronic mine sweeping systems; submarine anti-collision apparatus in the nature of sonar; positioning devices for automatic target acquisition, target tracking, target classification and target engagement in the nature of sonar; sonar devices and structural parts therefor on surface and underwater vehicles for using weapons, in particular underwater-driven steering bodies; guide and weapon deployment systems, in particular for surface and underwater vehicles, namely, signal processors consisting of submarine monitoring sensors, * all aforesaid goods only for nautical, military and surveillance use *;The following all aforesaid goods only for nautical, military and surveillance use should be inserted at the end of class 9.;Launch apparatus for underwater missiles, namely, launchers for torpedoes, anti-torpedo torpedoes and decoys, and for mines for the submarine engagement of targets, in particular grenades, mines, missiles, and projectiles; decoys, namely, decoy weapons in the nature of miniature air-launched decoy flares, weapon decoys for military use in the nature of decoy ships, decoy airplanes, and decoy tanks; underwater missiles, namely, torpedoes, and anti-torpedo torpedoes (ATTs); grenades, mines, missiles, projectiles and structural parts thereof; shells and shell sections specially designed for underwater missiles, namely, rear sections with rudder systems, drive sections with rocket motors, warheads with explosive charges, and training heads without explosive charges; weapons, namely, ballistic weapons and projectiles; motorised weapons, namely, artillery guns, field guns, howitzers, and tanks; target devices for artillery, namely, artillery sights excluding telescopic sights, all of the aforementioned goods solely for the engagement of submarine targets;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method of improving convergence of an echo canceller in a full duplex speakerphone, wherein the echo canceller includes LEC (Line Echo Canceller) and AEC (Acoustic Echo Canceller) portions, comprising the steps of capturing coefficients during operation, storing the coefficients, and utilizing the stored coefficients as default values during start-up of a subsequent call. According to the method of the present invention, the amount of echo cancellation necessary to provoke a save of the coefficients decreases with time when it is not achieved by the system despite the presence of a reference signal (i.e. speakerphone signal).