Multimedia computer speaker system with bridge-coupled subwoofer
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United States of America Patent
Stats
-
Mar 4, 2003
Grant Date -
Aug 30, 2001
app pub date -
Nov 15, 1999
filing date -
Nov 15, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multimedia computer speaker system includes a pair of amplifiers that provide amplified right and left audio signals to a pair of wide-band speakers. The amplifiers are configured to provide the amplified right and left audio signals that are out of phase with each other. The amplified right and left audio signals are applied to opposite terminals of the two wide-band speakers. These reversed terminal couplings to the wide-band speakers of the phase-reversed signals provide phase-aligned right and left audio playback at the speakers. A subwoofer and a low pass filter are connected as a bridge-tied load to receive the amplified right and left audio signals. The phase of one amplified audio signal is in effect reversed by applying it to the negative terminal of the subwoofer. As a result, low frequency components of a phase reversed amplified audio signal are summed by the subwoofer with low frequency components of the other amplified audio signal to provide a low frequency audio playback.
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Family
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