75554795
Sep 18, 1998
May 15, 2001
Computer software for communications over existing power lines and over RF links within buildings and vehicles, namely, embedded computer software or firmware for use in establishing and maintaining a protocol for communications over RF links and existing power lines; computer hardware for communications over existing power lines and over RF links within buildings and vehicles, namely computer hardware whose functions are packet assembly, channel access, modulation and demodulation
Electrical and Scientific Apparatus