Broadband communications RF packet collision detection

Details Broadband communications RF packet collision detection Broadband communications RF packet collision detection

1989-11-07

1990-07-03

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

370 852, H04Q 900, H04J 600

Patent

active

049395106

ABSTRACT:
A method and apparatus for identification of packet collisions which occur on a broadband communication bus. The collision detection apparatus is responsive to signals which normally reside on an RF packet channel. This apparatus identifies a collision by splitting a packet signal and then multiplying the split signal by itself utilizing a conventional mixer. The multiplied signal is passed through a bandpass filter and if no packet collision has occurred, then no significant signal energy will appear at the output of the bandpass filter. Howerever, in the event of a packet collision, then the multiplied output signal includes frequency components which pass through the bandpass filter to produce an energy level which is identified in a threshold detector.

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