Tepyt Technologies is developing and commercializing GRA Eminent Scholar G.K. Chang's research in hybrid optical-wireless communications networks.  According to Physorg.com, a science and technology news source:  "The new hybrid system could allow dual wired/wireless transmission of the same content such as high-definition television, data and voice up to 100 times faster than current networks.  The new architecture would reduce the cost of providing dramatically improved service to conference centers, airports, hotels, shopping malls -- and ultimately to homes and small offices."