High speed data transfer over twisted pair cabling

Details High speed data transfer over twisted pair cabling High speed data transfer over twisted pair cabling

1995-01-12

1997-01-28

Chin, Wellington

Multiplex communications

Duplex

Convertible to half duplex

370401, 370410, 370447, 370450, H04L 516

Patent

active

055984061

ABSTRACT:
A method for transmitting data packets, grouped as data octets, over a LAN having a central hub linked to each of a plurality of network nodes via a physical medium consisting of four pairs of unshielded twisted pair (UTP) cable. The transmission method sequentially divides the data into data quintets. The quintets are then arranged into blocks of data quintets and sequentially distributed into four individual serial code streams. The four serial code streams are sequentially scrambled to produce four streams of randomized quintets. The randomized data streams are sequentially block encoded into 6-bit symbol data which are then transmitted using NRZ modulation across the network by transmitting each data stream over one of said pairs of cable.

REFERENCES:
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patent: 5119402 (1992-06-01), Ginzburg et al.
patent: 5239545 (1993-08-01), Buchholz
patent: 5305320 (1994-04-01), Andrews et al.
patent: 5311114 (1994-10-01), Sambamurthy et al.
patent: 5432775 (1995-07-01), Crayford
patent: 5440560 (1995-08-01), Rypinski

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