1
Amar G Bose, John Carter: Headphoning. Bose Corporation, Charles Hieken, June 19, 1984: US04455675 (143 worldwide citation)

Headphones have a small cavity between the diaphragm and the ear canal with a microphone in the cavity closely adjacent to the diaphragm providing a feedback signal that is combined with the input electrical signal to be reproduced by the headphones to provide a combined signal that is power amplifi ...


2
Richard J Paynting: Multiple zone audio system. Bose Corporation, Fish & Richardson, January 26, 1993: US05182552 (132 worldwide citation)

A audio system may be monitored and controlled from one of many remote locations. The audio sources are located at a central location, however, the signals monitored at a remote location may originate from the same or a different source as the signal being monitored at the central location or any ot ...


3
William R Short, Malcolm Chellquist: Automatic dynamic equalizing. Bose Corporation, Charles Hieken, April 19, 1988: US04739514 (123 worldwide citation)

An automatic dynamic equalizer includes left and right input terminals, an input adder and left and right output adders. The left and right input terminals are connected to inputs of the input adder and inputs of the left and right output adder, respectively. The output of the input adder is connect ...


4
William M Rabinowitz, Hilmar Lehnert, Keith D Martin, Richard E Saffran, Abhijit Kulkarni, Finn Arnold: Automatic audio system equalizing. Bose Corporation, January 27, 2009: US07483540 (113 worldwide citation)

An automated process for equalizing an audio system and an apparatus for implementing the process. An audio system includes a microphone unit, for receiving the sound waves radiated from a plurality of speakers, acoustic measuring circuitry, for providing frequency response measurement signals; a me ...


5
Thomas A Froeschle: Current controlled two-state modulation. Bose Corporation, Charles Hieken, June 26, 1984: US04456872 (105 worldwide citation)

In a current controlled two-state modulation system having a power switch and a low pass filter, a current sensor provides a current feedback signal representative of the current delivered by the power switch to the low pass filter. The low pass filter also provides a voltage feedback signal that is ...


6
Thomas A Froeschle, Robert L Maresca, James A Parison: Electromechanical transducing along a path. Bose Corporation, Fish & Richardson, January 1, 1991: US04981309 (105 worldwide citation)

In a vehicle having a chassis and at least one wheel assembly, where the wheel assembly includes a wheel support member, a damping mass, a damping spring for connecting the damping mass to the wheel support member, and a mechanical resistive member in parallel with the damping spring, a suspension c ...


7
John Joyce, Eric J Freeman: Orientation-responsive acoustic driver selection. Bose Corporation, January 13, 2015: US08934647 (104 worldwide citation)

An audio device incorporates a first acoustic driver having a first direction of maximum acoustic radiation and a second acoustic driver having a second direction of maximum acoustic radiation, where the first and second directions of maximum acoustic radiation are not in parallel, and where the aud ...


8
John J Breen, Richard J Carbone, Eric J Freeman: Orientation-responsive use of acoustic reflection. Bose Corporation, January 13, 2015: US08934655 (103 worldwide citation)

An audio device incorporates first acoustic driver at least partially overlain by a first acoustic reflector to define a first effective direction of maximum acoustic radiation and a second acoustic driver at least partially overlain by a second acoustic reflector to define a second effective direct ...


9
William R Short: Dynamic equalizing of powered loudspeaker systems. Bose Corporation, Fish & Richardson, November 1, 1994: US05361381 (102 worldwide citation)

A powered loudspeaker system has a cabinet. The cabinet has at least one electroacoustical transducer and a power amplifier coupled to the electroacoustical transducer. Dynamic equalization circuitry coupled to the power amplifier provides a predetermined desired dynamic equalization for the electro ...


10
Abhijit Kulkarni: Audio signal processing. Bose Corporation, Fish & Richardson P C, February 10, 2009: US07490044 (94 worldwide citation)

An audio system for processing two channels of audio input to provide more than two output channels. The input may be conventional stereo material or compressed audio signal data. The audio processing includes separating the input signals into frequency bands and processing the frequency bands accor ...