Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation
Reexamination Certificate
2006-11-22
2011-12-27
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
C381S071600, C381S071700, C381S072000
Reexamination Certificate
active
08085942
ABSTRACT:
An apparatus and method for presenting high-quality auditory stimuli, receiving patient communication and providing noise cancellation within the environment of magnetic resonance imaging (“MRI”) equipment. A microphone is positioned in a noise attenuated channel for recording of the patient's voice. A microphone is disposed outside of a noise attenuated channel to directly record the sounds of MRI equipment during its operation. The signals generated by the microphones are employed to reduce the output of noise generated by MRI equipment.
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Chin Vivian
DLA Piper (LLP) US
NordicNeurolab AS
Zhang Leshui
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