Method and circuit for detecting data collisions in communicatio

Details Method and circuit for detecting data collisions in communicatio Method and circuit for detecting data collisions in communicatio

1995-03-14

1997-05-06

Safourek, Benedict V.

Multiplex communications

Channel assignment techniques

Carrier sense multiple access

370517, 375361, H04J 302

Patent

active

056278284

ABSTRACT:
The circuit and method for detecting data collisions in a communication network, the circuit including: a data transition detecting section for receiving Manchester encoded data signals RXD, and detecting a transition at the center of the bit cell of the encoded data signals, and outputting a transition detecting signal Z having a certain pulse width; a delayer for delaying received clock signals RXC having a certain cycle synchronized with the received data signals RXD, and outputting delayed clock signals DRXC; and a data collision detecting section turning to an active mode in accordance with a data receiving status signal CRS illustrating the receiving status of the received data signals, and shifting the status of output signals in accordance with the transition detecting signal Z upon clocking of the delayed clock signal DRXC.

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