Method of constructing network topology and interface circuit

Details Method of constructing network topology and interface circuit Method of constructing network topology and interface circuit

2008-01-08

2008-01-08

Chan, Wing (Department: 2616)

Multiplex communications

Diagnostic testing

Loopback

C370S241000, C370S248000, C370S257000, C714S025000

Reexamination Certificate

active

07317690

ABSTRACT:
An interface circuit that can disconnect a loop connection among nodes. The interface circuit includes ports, which are connected to bus cables, a state machine and a port controller, which is connected to the ports and the state machine. The state machine determines that a loop connection exists when a process in a predetermined state has been stacked for a predetermined time. When a loop connection exists, the port controller electrically disconnects a port on the loop.

REFERENCES:
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patent: 0 964 552 (1999-12-01), None
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IEEE Standard for a High Performance Serial Bus : IEEE STD 1394-1995, Dec. 1995 (IEEE Computer Society), See the contents of Annex E, section 3.2 “Tree Identity”.

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