SBIR Projects

The primary source of RTH funding has been the Small Business Innovative Research (SBIR) program. Listed below are SBIR projects that RTH was awarded; many of them involve active noise control (ANC). John Parkins was the lead grant writer and principal investigator on all projects.

National Institutes of Health (NIDCD)

ANC Hearing Aid

Hearing test system incorporating ANC


US Navy (NAVAIR)

Novel Passive Attenuation Earplug

Hear-Through Headset for Carrier Deck

Ear Impression Technique Using Medical Imaging

Database For Digital Ear Impressions


US Army (USAMRMC)

Novel ANC Transducer


US Air Force (AFRL)

Communications Earplug With ANC
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