Communications – electrical: acoustic wave systems and devices – Distance or direction finding – By combining or comparing signals
Reexamination Certificate
2007-09-18
2007-09-18
Chin, Vivian (Department: 2615)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
By combining or comparing signals
C381S001000, C381S077000, C381S074000, C381S092000, C367S125000, C367S126000, C367S127000
Reexamination Certificate
active
10515505
ABSTRACT:
The invention relates to a method and device for generating data about the mutual position of at least three acoustic transducers. The aim of the invention is to make it possible to continuously measure and calculate the mutual position of at least three acoustic transducers, particularly the rotation and the position of a human head wearing headphones within a room without using any additional transmitter element on the head, headphone, or body of the listener, during audio playback. This aim is achieved by connecting the acoustic transducers to a digitally operated system which comprises an output path emitting audio signals to first and second acoustic transducers, an input path receiving audio signals from the third acoustic transducer, an audio signal source that is connected to the output path, an ultrasound generator that is connected to the output path, and an information generator which indicates a position and is connected to the input path.
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Pellegrini Renato
Rosenthal Matthias
Buchanan & Ingersoll & Rooney PC
Chin Vivian
Faulk Devona E.
SonicEmotion AG
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