Method and apparatus for measuring quality of service...

Details Method and apparatus for measuring quality of service... Method and apparatus for measuring quality of service...

2006-09-26

2006-09-26

Harper, Kevin C. (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S503000

Reexamination Certificate

active

07113486

ABSTRACT:
Variation in delay in transmission of data from a transmitting station to a receiving station is measured by encapsulating a portion of the data and an outgoing time stamp in a packet, the outgoing time stamp substantially representing the degree of progression of a periodic process at the time of including the outgoing time stamp in the packet. The packet is transmitted from the transmitting station and is received at the receiving station. At the receiving station, an incoming time stamp is added to the packet. The incoming time stamp substantially represents the degree of progression of a periodic process at the time of adding the incoming time stamp to the packet. The incoming time stamp is compared to the outgoing time stamp.

REFERENCES:
patent: 6526446 (2003-02-01), Yang et al.
patent: 2002/0024970 (2002-02-01), Amaral et al.
patent: 2002/0026645 (2002-02-01), Son et al.
patent: 2002/0071434 (2002-06-01), Furukawa
patent: 2002/0152440 (2002-10-01), Yona et al.
patent: 2002/0154694 (2002-10-01), Birch
patent: 2004/0066751 (2004-04-01), Tseng et al.

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