Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating
Reexamination Certificate
2006-02-07
2006-02-07
Vaughn, Jr., William C. (Department: 2143)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer data transfer regulating
C370S352000
Reexamination Certificate
active
06996626
ABSTRACT:
A voice-over-Internet-Protocol (VoIP) application estimates bandwidth and congestion of the reception path to the VoIP application from a sending VoIP application. Packet arrivals are timed and the inter-packet delay is compared to the voice duration of the data contained in the more recent packet. When the inter-packet delay is longer than the voice duration the network is slowing and the bandwidth estimate is reduced. The bandwidth estimate is increased when inter-packet delay is smaller than the voice duration. Packet latencies are the difference in send and receive times and are compared to a moving average latency. When the current packet's latency is longer than the moving average, congestion is detected. When the current packet's latency equals the moving average, the network has recovered from congestion and the congestion estimate is reduced. Congestion and bandwidth estimates are added to packets sent out to provide feedback to the other VoIP application.
REFERENCES:
patent: 5179549 (1993-01-01), Joos et al.
patent: 5274625 (1993-12-01), Derby et al.
patent: 5333299 (1994-07-01), Koval et al.
patent: 5737531 (1998-04-01), Ehley
patent: 5890108 (1999-03-01), Yeldener
patent: 5928331 (1999-07-01), Bushmitch
patent: 5933803 (1999-08-01), Ojala
patent: 5936940 (1999-08-01), Marin et al.
patent: 6144639 (2000-11-01), Zhao et al.
patent: 6182125 (2001-01-01), Borella et al.
patent: 6219704 (2001-04-01), Kim et al.
patent: 6308148 (2001-10-01), Bruins et al.
patent: 6324184 (2001-11-01), Hou et al.
patent: 6356545 (2002-03-01), Vargo et al.
patent: 6360271 (2002-03-01), Schuster et al.
patent: 6389032 (2002-05-01), Cohen
patent: 6389038 (2002-05-01), Goldberg et al.
patent: 6393016 (2002-05-01), Wegner et al.
patent: 6404764 (2002-06-01), Jones et al.
patent: 6452922 (2002-09-01), Ho
patent: 6456594 (2002-09-01), Kaplan et al.
patent: 6473423 (2002-10-01), Tebeka et al.
patent: 6657983 (2003-12-01), Surazski et al.
CrystalVoice Communications
Doan Duyen M.
Rodgers Mark
Vaughn, Jr. William C.
LandOfFree
Continuous bandwidth assessment and feedback for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous bandwidth assessment and feedback for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous bandwidth assessment and feedback for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680172