Bose Corporation

Clearmotion Acquisition I LLC

Thomas C Schroeder

Brian M Lucas

Richard Tucker Carlmark

Robert Preston Parker

Brian Alexander Selden

Dariusz Antoni Bushko

Thomas A Froeschle

Geoffrey C Chick

Mark Andrew Hayner

Benjamin G K Peterson

Roger Mark

David E Hanson

Joseph A Stabile

Jun Ma

Mark A Hayner

Roman N Litovsky

Ricardo Federico Carreras

Louis F Genatossio

Upendra V Ummethala

James A Parison

Charles R Barker, Iii

Gerald F Caron

Daniel Francis Opila

Linda Ystueta

Rakesh C Pandey

Dorie A Sabol

Osman K Isvan

An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton, a rotary actuator, and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended plant. The rotary actuator may include inner and outer rotors which rotate relative to each other. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform, and both the inner and outer rotors may be free to rotate relative to the exoskeleton.

Rotary actuator driven vibration isolation

An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton which supports the suspended platform relative to the base. The exoskeleton includes first and second scissors mechanisms with main links of unequal length. The main links pass through a parallel condition as the suspended platform moves over its intended range of travel relative to the base. The vibration isolation system may include a rotary actuator and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended platform. The rotary actuator may include inner and outer rotors which rotate relative to each other and may be free to rotate relative to the exoskeleton. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform.

A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced.

Loudspeaker moment and torque balancing

Moving magnet levered loudspeaker

A method for actively suspending a real plant in a vehicle includes modifying a control signal on the basis of a difference between a property of the real plant, as indicated by the response of the real plant to the control signal, and a property of a nominal plant.

Active suspending

An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated when current is passed through coils in the stator assembly. When current is applied to one or more coils within the stator assembly, a magnetic field is generated that interacts with a magnetic field generated by one or more magnets disposed within the armature assembly and causes the armature to move relative to the center pole thus, for example, opening or closing a valve.

Electromagnetic actuator and control

Loudspeaker

A loudspeaker system includes an upper frequency assembly that radiates acoustical energy having spectral components in the audio frequency range above a predetermined upper frequency, typically at the high end of the bass frequency range between 150 and 200 Hz. The assembly includes a ported enclosure with a front face enclosing a loudspeaker driver with a cone adjacent to the front face of diameter slightly less than at least one of the height and width of the enclosure.

Satellitic compact electroacoustical transducing

Growing community of inventors

Southborough, MA, United States of America

Thomas C Schroeder