The Study of Digital Ultrasonic Bone Conduction Hearing Device

Yang, Dan; Bin, Xu; Wang, Xu; Jia, Xueqin

doi:10.1109/iembs.2005.1616820

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Acoustic wave bone conduction hearing aids have been found capable of supporting frequency discrimination and speech detection for hearing impaired and profoundly deaf subjects [18]. These systems use analog acoustic signals within the audible range and are placed at the outer ear.…”

Section: Bone Conductionmentioning

confidence: 99%

OsteoConduct: wireless body-area communication based on bone conduction

Lin¹,

Daye²,

Kaufman³

et al. 2007

Proceedings of the Second International Conference on Body Area Networks BodyNets

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We present OsteoConduct, a novel technology that leverages the human musculoskeletal system to transmit data and interface users in a low-power, secure, non-intrusive fashion. OsteoConduct employs a mechanical stimulus in form of patterned acoustic vibration, generated by human users or external stimulators, and a low-cost receiver, as simple as an accelerometer or microphone. It is particularly suitable for low data rate communication between implantable or wearable devices, especially as a secure and lowpower alternative to wireless body-area network technologies, such as Bluetooth. In support, we provide an extensive study of bone conduction characteristics and modulation schemes for digital data communication based on OsteoConduct. We present prototype designs and user studies for the applications of OsteoConduct in both body-area data communication and interfacing. Our experimental results demonstrate that mechanical stimuli can be reliably transmitted through the human musculoskeletal system with power consumption of multiple mW. We also show that excitations generated by human teeth clacks can be readily employed by users to interact with computers and body-area devices. The key components of our OsteoConduct prototypes are a low-power mechanical stimulator, sensor-based receivers, and signal processing techniques for robust data transmission.

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Section: Bone Conductionmentioning

confidence: 99%

OsteoConduct: wireless body-area communication based on bone conduction

Lin¹,

Daye²,

Kaufman³

et al. 2007

Proceedings of the Second International Conference on Body Area Networks BodyNets

View full text Add to dashboard Cite

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Characterization of human head vibration with bone-conducted ultrasonic stimulation

Ito¹,

Nakagawa²

2014

Jpn. J. Appl. Phys.

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A novel hearing aid system based on bone-conducted ultrasonic (BCU) hearing is being developed for use by profoundly deaf people. However, the perception mechanisms involved in BCU hearing remain unclear. In this study, the way in which the mechanical frequency characteristics of human head vibration under BCU stimulation contribute to the hearing process was considered and examined in terms of the effects of the elasticity of the surface tissue that was in contact with a bone conduction vibrator. The results suggest that head vibration under BCU stimulation has low-pass filter-type characteristics with a cut-off frequency of between 30 and 40 kHz, which is attributed to the effects of the elasticity of living human skin. However, the issue of the psychoacoustic characteristics of the BCU hearing process not necessarily reflecting the mechanical frequency characteristics of head vibration remains.

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The Study of Digital Ultrasonic Bone Conduction Hearing Device

Cited by 2 publications

References 4 publications

OsteoConduct: wireless body-area communication based on bone conduction

OsteoConduct: wireless body-area communication based on bone conduction

Characterization of human head vibration with bone-conducted ultrasonic stimulation

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