Apparatus and method for collision avoidance

Details Apparatus and method for collision avoidance Apparatus and method for collision avoidance

1980-12-22

1983-03-08

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

370 13, 371 22, H04Q 124

Patent

active

043762786

ABSTRACT:
A collision avoidance apparatus having a voltage source producing a predetermined voltage level. A switching network within the collision avoidance apparatus is capable of alternately applying the predetermined voltage level to the communication medium and of applying the voltage level of the communication medium to a logic network. The logic network indicates if the predetermined voltage level and the voltage level of the communication medium are approximately equal.

REFERENCES:
patent: 4063220 (1977-12-01), Metcalfe
patent: 4099024 (1978-07-01), Boggs
patent: 4138599 (1979-02-01), Munter
patent: 4197500 (1980-04-01), Klein et al.
patent: 4259663 (1981-03-01), Gable et al.
patent: 4271523 (1981-06-01), Gable et al.
patent: 4282512 (1981-08-01), Boggs et al.
patent: 4345250 (1982-08-01), Jacobsthal
Kleinrock, "Performance of Distributed Multi-Access Computer Communication System," 1977, 547,552.

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