Electrical audio signal processing systems and devices – Headphone circuits
Reexamination Certificate
2005-12-13
2005-12-13
Chin, Vivian (Department: 2644)
Electrical audio signal processing systems and devices
Headphone circuits
C381S310000, C381S311000, C381S384000, C381S026000
Reexamination Certificate
active
06975731
ABSTRACT:
A method for simulating an artificial sound environment including sending an ultrasound reference signal to a headphone assembly worn by a user having two ears, the headphone assembly audibly providing at least one audio signal to each of the ears, processing arrival times of the ultrasound reference signal at each ear, so as to measure a phase difference of the signal as perceived by one ear in contrast to the other ear, modulating at least two audio signals, at least one signal for each ear, in accordance with the phase difference, and sending the at least two audio signals via the headphone assembly to each of the ears.
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Bar On Amir
Cohen Yuval
Naveh Giora
Beh Ltd.
Chin Vivian
Graham Andrew
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