Topic Information Award/Contract Number Proposal Information Company Performance

Noise Cancellation for Voice Operated Switch (VOX) Communications

N10PC20020 0921011
(FY09.2 Phase I)
Adaptive Noise Cancellation for Improved Voice Operated Switch (VOX) Efficiency and Voice Intelligibility

GL Communications Inc.
818 West Diamond Avenue, Third Floor
Gaithersburg, MD 20878-1417


First Responders face critical life and death issues in dangerous environments. Efficient radio communications is essential in the success of their mission, but high background noise can degrade radio efficiency and intelligibility. This proposal presents a novel approach to mitigate noise, improve VOX efficiency, permit hands free operation, and improve voice intelligibility. It is based on the principle of adaptive noise cancellation. GL Communications Inc., Dr. Christopher Fuller, and Larry Lutz will team together to demonstrate the feasibility of a portable noise canceller that first responders can easily adapt to their current mobile radios and at relatively low cost. The team has a long track record in noise cancellation technology, product development, testing, and commercialization. This project is in response to the Department of Homeland Security Small Business Innovation Research (SBIR) Program solicitation of Topic Number H-SB09.2-006.

Wearable Energy to Power and Operate Responder Tools (Wearable EPORT)

N10PC20032 0921110
(FY09.2 Phase I)
A Wearable Battery Cloth

FlexEl, LLC
FlexEl, LLC
387 Technology Drive
College Park, MD 20742-3371


Hydrated ruthenium oxide has demonstrated outstanding volumetric charge storage capability. It is non-toxic, environmentally safe, and when used with an oxidizing counter-electrode, becomes part of a galvanic cell (a battery). Ruthenium oxide and many oxidizing metals, like zinc, are available as nano-particulate powers. They combine to form highly flexible batteries with excellent current sourcing capabilities. We have built a thin film battery with the highest reported current density of any thin film cell. The major barrier to acceptance of this material system is cost. In the past, 1 m2 of the battery material could cost one hundred thousand dollars. We propose a manufacturing technique that can lower costs to less than one hundred dollars per m2. It is based on a coating approach that forms continuous layers of nano-particles whose thickness is close to that of a single nano-particle diameter. Thin, coated sheets can be pulled through the coater at a rate of meters squared a minute. The resulting sheets are easily assembled into mechanically flexible batteries or capacitors. The goal of the proposed program is to create a wearable battery cloth capable of powering first responder gear for times much longer than that of a typical responder mission.