Lear Corporation

Tymphany Hk Limited

Tymphany Corporation

David J Prince

Robert J True

Edward T Norcott, Jr

Ioannis Kanellakopoulos

Andrew David Unruh

Alireza Jabbari

Kenneth L Kantor

Shaolin Wei

Jens-Peter Axelsson

Pawel W Sleboda

David M Emerling

Mark Fero

Justin Putti

Jerome Go Ng

John F Mola

Randall A Gage

Richard Warren Little

Kevin Christopher Corr

Jose Francisco Garcia

An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage.

Acoustic transducer comprising a plurality of coaxially arranged diaphragms

An acoustic transducer includes a housing, a plurality of diaphragms suspended from the housing and separated into one or more groups, and one or more motors combined with the housing that operate in response to an electrical signal. The diaphragms of each group are driven by a respective motor to which all the diaphragms in the group are coupled and at least one motor has an indirect coupling with no direct mechanical connection to the diaphragms driven thereby. One or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers.

A method is provided for controlling a dynamic range of audio reproduction in an interior of a vehicle. An input audio signal is received by an audio processor. The input audio signal is split into a first and a second processing path. The input audio signal of the second processing path is compressed. A noise-related parameter of the vehicle is characterized. A gain control is applied to the compressed audio signal of the second processing path in response to the noise-related parameter. The compressed and uncompressed audio signals are synchronously recombined. The combined audio signal is reproduced to the interior of the vehicle.

NVH dependent parallel compression processing for automotive audio systems

A vehicle overhead audio system, an electromagnetic transducer assembly for use therein and a computer system programmed with a graphic software control for changing the audio system's signal level and delay are provided where a headliner of the vehicle is a loudspeaker of the system thereby replacing many other loudspeakers and being invisible to the occupants. The headliner is driven in multiple zones that effect proper imaging for all occupants. Supplemental high frequency and subwoofer speakers and signal processing circuitry are included in one aspect of the invention.

Vehicular audio system including a headliner speaker, electromagnetic transducer assembly for use therein and computer system programmed with a graphic software control for changing the audio system's signal level and delay

An audio system for use in a passenger compartment of a vehicle. The system includes a front-driver side speaker unit and a front-passenger side speaker unit to cooperatively emit audio sound to the passenger compartment. The driver-side speaker unit includes a primary speaker and a secondary speaker to produce sound in cooperation with a primary speaker and a secondary speaker of the passenger-side speaker unit. An audio control system is configured to compensate for unbalancing of stereo images at front-driver/passenger positions by controlling output from the secondary speakers based on output from the primary speakers.

Audio system for use with a vehicle

Loudspeaker

A vehicle overhead audio system and an electromagnetic transducer assembly for use therein are provided where a headliner of the vehicle is a loudspeaker of the system thereby replacing many other loudspeakers and being invisible to the occupants. The headliner is driven in multiple zones that effect proper imaging for all occupants. Supplemental high frequency and subwoofer speakers and signal processing circuitry are included in one aspect of the invention.

Vehicular audio system and electromagnetic transducer assembly for use therein

A sun visor for use with a motor vehicle includes a visor body having sufficient acoustic transmissibility such that the visor body is sufficiently sound transparent. The visor body further being sufficiently opaque so as to inhibit passage of light through the visor body.

Acoustically transparent visor

A headliner assembly for a vehicle. The headliner assembly includes a headliner body and a flexible air duct. The headliner body includes a vent aperture and first and second surfaces. The first surface is disposed adjacent to a roof of the vehicle and the second surface is disposed opposite the first surface. The flexible air duct includes an inlet for receiving pressurized air and a duct portion that channels pressurized air from the inlet to the vent aperture. The flexible air duct is attached to the first surface and inflates when air is provided through the inlet and at least partially deflates when air is not provided through the inlet.

Growing community of inventors

Villa Park, IL, United States of America

David J Prince