Playback Devices Having Waveguides

A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis...

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Hauptverfasser:	Flanagan, Greg, Chamness, Michael, Zaba, Camille
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES PUBLIC ADDRESS SYSTEMS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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creator	Flanagan, Greg Chamness, Michael Zaba, Camille
description	A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. An acoustic path length within the waveguide, between the transducer and the opening, is substantially constant and independent of azimuthal angle about the axis.
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The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. 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subjects	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES PUBLIC ADDRESS SYSTEMS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
title	Playback Devices Having Waveguides
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