Head tracking with limited angle output
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United States of America Patent
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Mar 11, 2003
Grant Date -
N/A
app pub date -
Oct 22, 1997
filing date -
Oct 23, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method is dislcosed for stabilizing the apparent location of an audio signal having spatial components, in the presence of movement of emission sources designed to emit the audio signal while maintaining the apparent location, the method comprising the steps of (a) high pass filtering a signal proportional to the angular position of the emission sources; (b) utilizing the high pass filtered signal as an apparent angular position of the emission sources to determine an apparent location of the audio signal. Preferably, the high pass filtered signal is limited utilizing a non-linear asymptotically bounded function to limit the signal.
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