Apparatus and method for checking network synchronization...

Details Apparatus and method for checking network synchronization... Apparatus and method for checking network synchronization...

2006-12-08

2009-11-10

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Synchronizers

C375S355000, C375S357000, C375S359000, C375S360000, C375S371000, C375S373000, C375S375000, C702S069000, C702S076000, C702S077000, C702S078000, C369S053340, C369S047280, C369S044130, C369S275400

Reexamination Certificate

active

07616721

ABSTRACT:
In an apparatus and method for checking a network synchronization clock signal in a communication system, the apparatus generates a divided clock signal which is the same as an externally inputted network synchronization clock signal, compares the value of one period of the network synchronization clock signal to the value of one period of the divided clock signal, and determines whether the network synchronization clock signal is normal or not. Thus, the reliability of an operation of checking the network synchronization clock signal is enhanced.

REFERENCES:
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patent: 1997-55383 (1997-07-01), None
patent: 10-1999-0060348 (1999-07-01), None
patent: 1999-0061650 (1999-07-01), None

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