Patent ID: 6101172
Filing Date: 2000-08-08
Classification: H04L

Abstract:
The system for transmitting data between upstream and downstream locations on a twisted pair and a frequency division multiplexed system, comprising:a transmitter disposed at each of the upstream and downstream locations for transmitting data over the twisted pair;a receiver disposed at each of the upstream and downstream locations for receiving data from the twisted pair;said transmitter and receiver transmitting and receiving data with defined frequency spectra which is shaped at said respective transmitter and receiver, a downstream spectra associated with transmissions from the upstream location to the downstream location, and an upstream spectra associated with transmissions from the downstream location to the upstream location, each of the upstream and downstream spectra divided into three common regions, a full-duplex region, a first half-duplex region, and a second half-duplex region, wherein:said upstream and downstream spectra sharing said full-duplex regions, which said full-duplex regions each extend from DC to a first frequency,said upstream spectra associated substantially with said second half-duplex region to pass signal therethrough and substantially reject signal in said first half-duplex region,said downstream spectra associated substantially with said first half-duplex region to pass signal therethrough and substantially reject signal in said second half-duplex region, andsaid first and second half-duplex regions disposed adjacent each other.