Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Reexamination Certificate
2002-04-26
2009-11-10
Le, Huyen D (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Specified casing or housing
C381S312000, C381S380000
Reexamination Certificate
active
07616771
ABSTRACT:
There is provided hearing device improvements using modulation techniques adapted to the characteristics of auditory and vestibular hearing. One embodiment provides for extending hearing to the infrasonic range by extracting sounds from the high ambient noise in this range and applying them to a carrier in the ultrasonic quiet zone. Further extension of hearing into the ultrasonic range is provided by a modulation scheme which uses a fluid conduction coupler to match impedance for a vibration transducer applied to the skin. A variation on this embodiment integrates this ultrasonic hearing extension with normal acoustic headphones. Another embodiment compensates for high frequency hearing loss by a modulation scheme which uses middle ear resonance as an amplifier. A further embodiment combines ultrasonic transposition with wireless modulation to obtain secure communication.
REFERENCES:
patent: 4982434 (1991-01-01), Lenhardt et al.
patent: 5772575 (1998-06-01), Lesinski et al.
patent: 6068589 (2000-05-01), Neukermans
Lenhardt Martin
Richards Douglas
Le Huyen D
Virginia Commonwealth University
Whitham Curtis Christofferson & Cook, P.C.
LandOfFree
Acoustic coupler for skin contact hearing enhancement devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustic coupler for skin contact hearing enhancement devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic coupler for skin contact hearing enhancement devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4088327