REDUCING OR ELIMINATING TRANSDUCER REVERBERATION

An obstacle monitoring system includes a transducer that receives an ultrasonic echo from an obstacle and generates a signal based on the echo. The system further includes a controller coupled to the transducer that is calibrated based on a frequency response of the transducer and a coupling circuit...

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Bibliographic Details
Main Authors HUSTAVA, Marek, SUCHY, Tomas, NAVRATIL, Michal, KUTEJ, Jiri
Format Patent
LanguageEnglish
Published 07.06.2018
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DEAF-AID SETS
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
MEASURING
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
PUBLIC ADDRESS SYSTEMS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
SIGNALLING
SOUND-PRODUCING DEVICES
TESTING
TRAFFIC CONTROL SYSTEMS
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Summary:An obstacle monitoring system includes a transducer that receives an ultrasonic echo from an obstacle and generates a signal based on the echo. The system further includes a controller coupled to the transducer that is calibrated based on a frequency response of the transducer and a coupling circuit. The system further includes circuitry generating a damping current, controlled by the controller, that reduces or eliminates reverberation of the transducer.
Bibliography:Application Number: US201715784345