Stefan Roman
Stefan Roman Hilbowicki, Toronto CA
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20110026751 | High Acoustic Compliance Device for Loudspeaker Systems - There is provided a device for propagating acoustic vibrations through an environment. The device includes a low pressure chamber containing a volume of reduced pressure relative to the environment. A movable wall is formed on the low pressure chamber, said movable wall having an ambient side facing the environment and a low pressure side facing the volume of reduced pressure. The movable wall is sufficiently biased towards the environment and away from the volume of reduced pressure such that the movable wall can freely vibrate back and forth relative to the volume of reduced pressure in response to acoustic vibrations impinging on the ambient side of the movable wall. The device has the acoustical compliance of a device of far larger volume. | 02-03-2011 |
Stefan Roman Hlibowicki, Scarborough CA
Patent application number | Description | Published |
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20110123054 | METHOD AND SYSTEM FOR DETERMINING RELATIVE POSITIONS OF MULTIPLE LOUDSPEAKERS IN A SPACE - A method for identifying and recording the relative positions of loudspeakers in an array with respect to one another using amplifiers connected on a network. | 05-26-2011 |
Stefan Roman Hlibowicki, Toronto CA
Patent application number | Description | Published |
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20130038391 | METHOD AND APPARATUS FOR REDUCING DISTORTION IN CLASS D AMPLIFIER - Provided are apparatuses and methods for reducing nonlinear distortions in Class D amplifiers by dynamically changing first and second threshold voltages in a pulse width modulator. A Class D amplifier apparatus is disclosed, comprising a pulse width modulator whose operation relies on a first and second threshold value, and a threshold controller which varies the thresholds in response to internal signals in the amplifier. Further, a method of processing Class D amplifier internal signals is disclosed, comprising steps involving measuring internal signals in a Class D amplifier and varying threshold signals in response to those measurements within the amplifier. | 02-14-2013 |