Dolby Laboratories Licensing Corporation

Other

Harman International Industries, Inc.

Advanced Bionics Ag

Richard Louis Weisman

Peter Michaelian

Louis Dunn Fielder

Lucas E Saule

Daniel C Wiggins

Gareth James Selfe

Claude A Vidal

Michael Collinson

Russ J Redmond

Paul Kaluzniak

Fancher M Murray

Some headphone systems include two ear cups, a headband assembly, an interface system and a control system. Each ear cup may include an ear cup enclosure, an ear pad assembly, a speaker system and a hinge assembly. The hinge assembly may be disposed within the ear cup enclosure such that it is not visible from outside the ear cup. The headband assembly may connect with each of the ear cups via the hinge assembly. The interface system may include at least one interface and a plurality of input source buttons disposed on at least one of the ear cups. Each of the input source buttons may be configured for selecting a source of audio data received via the at least one interface. The control system may be configured for controlling the speaker system to reproduce audio data received via the interface and selected by one of the input source buttons.

Headphones and headphone systems

Headphone system including two ear cups (), a headband assembly (), an interface system () and a control system (). Each ear cup () includes an ear cup enclosure (), an ear pad assembly (), a speaker system () and a hinge assembly (). The hinge assembly () is disposed within the ear cup enclosure () such that it is not visible from outside the ear cup (). The headband () assembly connects with each of the ear cups () via the hinge assembly (). The interface system () includes at least one interface and a plurality of input source buttons () disposed on at least one of the ear cups (). Each of the input source buttons () is configured for selecting a source of audio data received via the at least one interface. The control system () is configured for controlling the speaker system () to reproduce audio data received via the interface and selected by one of the input source buttons ().

A voice coil suspension system comprising a spider formed of flexible dielectric material defining a flexure portion configured to suspend a voice coil for axial displacement and an elongate connector portion for carrying flat electrical conductors for electrically connecting terminals of said voice coil to stationary electric contacts.

Planar flexible voice coil suspension

An electromagnetic transducer such as an audio speaker employs a slotted yoke and two suspension components enabling very large excursion relative to the size of the diaphragm which results in improved low frequency output. A first suspension component includes an inner ring, flexible springs, and an outer body. The flexible springs extend through the slots of the yoke and couple the inner ring to the outer body. The inner ring, outer body, and flexible springs of the first suspension component may be of monolithic construction or they may be distinct components coupled together. The inner ring couples to the bobbin of the diaphragm assembly, and the outer body couples to the outer cylindrical surface of the yoke or to a mounting ring which is coupled to the outer cylindrical surface of the yoke. A second suspension component, such as a surround, couples the diaphragm assembly and to the mounting ring. The mounting ring and the outer body of the first suspension component are keyed and dimensioned to provide correct positioning and alignment of the inner ring. This accomplishes accurate positioning of the voice coil in both the radial and axial directions without complicated and expensive assembly equipment.

Loudspeaker suspension for achieving very long excursion

An acoustic transducer is disclosed for incorporation into an engine exhaust system or other gas carrying duct. The transducer produces pressure variations within the duct in accordance with an applied electrical signal. The transducer is especially suitable for use as part of a noise cancellation system whereby inverse pressure variations produced by the transducer cancel noise propagating in the duct. The design of the transducer allows its use when the duct is one carrying high temperature gases such as an automobile exhaust pipe.

Acoustic transducer for automotive noise cancellation

A changeable advertising sign assembly adapted to be mounted on the interior surface of a door. The assembly consists of a frame having a detachable side edge normally inaccessible when the door is closed. A front transparent protective sheet is slidably mounted in the frame in front of a display sheet which is also slidably mounted in the frame.

Growing community of inventors

Pasadena, CA, United States of America

Richard Louis Weisman