Hybrid interface for packet data switching

Details Hybrid interface for packet data switching Hybrid interface for packet data switching

1997-11-24

2000-10-03

Pham, Chi H.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

375371, H04J 306

Patent

active

061283193

ABSTRACT:
A hybrid data parallel/serial data transfer system with phase adjustment and symbol coding for switching digital data packets in order to facilitate massive high speed transfer of information with a limited number of signal lines. Much higher data transfer is possible than in a conventional serial data transfer. Multi-giga bits or Tera bits can be transferred easily over a long distance using this invention. Data transmission apparatus is described in which data is transmitted over a communication link or trunk consisting of a plurality of lines. Each message is transmitted as a sequence of groups of data bits, the bits in each group being transmitted in parallel over the trunk. Each line or path carries a signal and each message is preceded by a serial start pattern. The receiver comprises a plurality of decoders for receiving data signals from the trunk. These signals are fed to a separate buffer. The contents of the buffer are then read out in parallel. The arrangement overcomes the problem of data skew due to different transmission times over the lines of the trunk.

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