Method and apparatus for creating a virtual third channel in a two-channel amplifier
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United States of America Patent
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Mar 2, 2010
Grant Date -
Jan 19, 2006
app pub date -
Sep 19, 2005
filing date -
Nov 1, 2002
priority date (Note) -
Expired
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Abstract
A method and apparatus for creating a third signal channel from an input signal received in each of a first and second channel involves inverting a predetermined frequency range of signals in the first channel out of phase with a corresponding frequency range of signals in the second channel. Thereafter, the inverted signal in the first channel and the corresponding frequency signal in the second channel may be communicated to a speaker, which is bridged across the first and second channels, as the third signal channel. This speaker produces sound corresponding to the difference (i.e., the frequency range determined by the predetermined bandwidth of the inverted signal) between the inverted signal in the first channel and the corresponding frequency signal in the second channel.
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