Innovation at Penn
Browse Penn-owned technologies available for licensing.
Search Results - daniel+lee
Directional speakers for warning systems
Directing a beam of sound at any angle Problem: Most audio warning systems have no way of targeting the individuals that need to receive a message. These warnings might be ignored or missed by the people that need to hear them. Directed sound systems can create a narrow “beam” of sound rather than a wave that spreads in all directions....
Hardware & Circuits & Sensors
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