Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Reexamination Certificate
2011-04-19
2011-04-19
Ni, Suhan (Department: 2614)
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Testing of hearing aids
C381S312000, C600S559000, C073S585000
Reexamination Certificate
active
07929711
ABSTRACT:
Pathological binaural phase time delay (PBTD) asynchrony is measured at a variety of frequencies and speech stimuli to develop a BPTD profile for a subject. A corrective device (600, 1000) is designed to apply clinical PBTD to compensate for the subject's pathological BPTD. An electronic device (500) is used to measure the subject's ability to comprehend words at a variety of relative time delays between ears to estimate the ideal overall relative time delay. The optimal relative phase shift at a variety of frequencies is also measured. An electronic device (600) may be used to correct the pathological BPTD by delaying sound in different frequency bands differently to the target ear, according to the BPTD profile, or a passive filtered earplug (1000) may be used to correct smaller amounts of BPTD.
REFERENCES:
patent: 6167138 (2000-12-01), Shennib
Burleigh Joan M.
James Susan P.
Peterson Michael L.
Thompson Michael W.
Able Planet, Incorporated
Lenzen Glenn H.
Ni Suhan
Polsinelli Shughart PC
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