Patent ID: 6262972
Filing Date: 2001-07-17
Classification: H04L,H04M

Abstract:
A digital communication trunk for transmitting digital data between two distal central offices, comprising:at least one network segment connected to another network segment by a digital discrete multitone repeater, each said repeater including a pair of repeater functions, each repeater function including: (a) a receive line driver to amplify encoded analog information received from a network segment to a predefined signal level; (b) a digital discrete multitone codec to convert said encoded analog information to digital multitone information; (c) a digital discrete multitone receiver to receive said digital multitone information and to form baseband digital information therefrom; (d) a digital discrete multitone transmitter to receive said baseband digital information and to convert said baseband digital information into digital multitone information; (e) a digital discrete multitone codec to convert said digital multitone information into analog tone information; and (f) a transmit line driver to convert said analog tone information to a predefined signal transmission level for transmission on another network segment;at least two distal central offices, each distal central office connected to a respective one of said at least two network segments, each distal central office including: (g) a digital interface to receive baseband digital information to be transmitted through said network segment; (h) a digital discrete multitone transmitter to receive said baseband digital information and to convert said baseband digital information into digital multitone information; (i) a digital discrete multitone codec to convert said digital multitone information into encoded analog information in a plurality of frequency bands; (j) a transmit line driver to convert said encoded analog information to predefined signal transmission levels for transmission on said network segment; (k) a receive line driver to amplify tone information received from said network segment to a predefined signal level; (l) a digital discrete multitone codec to convert said encoded analog information from said receive line driver into digital multitone information; and (m) a digital discrete multitone receiver to receive said digital multitone information and to form baseband digital information therefrom, said digital interface outputting said formed baseband digital information.