Dual 4-wire analog data multiplexer

Year	Description
1995	Invention patented by Nicholas A. Balatoni, Tom Blackburn, and C. David Dow on June 6th, 1995. Abstract: An improved method and apparatus for transmission of dual 4-wire analog data services between a telephone company location and a subscriber premises over a single twisted pair, providing a 4:1 pair gain. In a preferred embodiment the invention provides for method and apparatus for transmission of multiple analog data signals for dual 4-wire analog data services over a single twisted pair from telephone company equipment to a subscriber, using 2B1Q or 4B3T digital signals.
Source: selected by the editor from original sources.

Invention: Dual 4-wire analog data multiplexer