NASA NTRS · 19930000757
Packet Controller For Wireless Headset
Abstract
Packet-message controller implements communications protocol of network of wireless headsets. Designed for headset application, readily adapted to other uses; slight modification enables controller to implement Integrated Services Digital Network (ISDN) X.25 protocol, giving far-reaching applications in telecommunications. Circuit converts continuous voice signals into digital packets of data and vice versa. Operates in master or slave mode. Controller reduced to single complementary metal oxide/semiconductor integrated-circuit chip. Occupies minimal space in headset and consumes little power, extending life of headset battery.
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Christensen, Kurt K., Swanson, Richard J.. 1993-12-01. Packet Controller For Wireless Headset. https://ntrs.nasa.gov/citations/19930000757
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