US Patent No: 7,266,613

Number of patents in Portfolio can not be more than 2000

Fast dynamic measurement of bandwidth in a TCP network environment

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Abstract

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The fast dynamic measurement of bandwidth in a TCP network environment utilizes a single pair of packets to calculate bandwidth between two entities on a network (such as the Internet). This calculation is based upon the packet-pair technique. This bandwidth measurement is extremely quick. On its journey across a network, communication devices may delay the packet pairs. In particular, TCP networks have two algorithms designed to delay some packets with the goal of increasing the overall throughput of the network. However, these algorithms effectively delay a packet pair designed to measure bandwidth. Therefore, they distort the measurement. These algorithms are Nagle and Slow Start. The fast dynamic measurement of bandwidth implements countermeasures to overcome the delays imposed by these algorithms. Such countermeasures include disabling the application of the Nagle Algorithm; minimizing the buffering of packets by sending a 'push' packet right after the packet pair; and avoiding the Slow Start Algorithm by priming it with a dummy packet.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MICROSOFT CORPORATIONREDMOND, WA29040

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brown, Thomas B Redwood Shores, CA 12 69
del, Val David Madrid, ES 21 1182
Klemets, Anders E Redmond, WA 88 1035

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MICROSOFT CORPORATION (10)
7,650,421 Adaptable accelerated content streaming 4 2002
7,353,286 Fast dynamic measurement of bandwidth in a TCP network environment 2 2004
7,349,977 Fast dynamic measurement of bandwidth in a TCP network environment 3 2004
8,325,800 Encoding streaming media as a high bit rate layer, a low bit rate layer, and one or more intermediate bit rate layers 0 2008
8,379,851 Optimized client side rate control and indexed file layout for streaming media 0 2008
8,370,887 Media streaming with enhanced seek operation 0 2008
7,949,775 Stream selection for enhanced media streaming 1 2008
7,925,774 Media streaming using an index file 3 2008
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8,819,754 Media streaming with enhanced seek operation 0 2013
 
F5 NETWORKS, INC. (4)
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INTERNATIONAL BUSINESS MACHINES CORPORATION (4)
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ASPECT COMMUNICATIONS CORPORATION (1)
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MORRISON & FOERSTER LLP (1)
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PANASONIC CORPORATION (1)
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SONY ELECTRONICS INC. (1)
7,925,775 TCP congestion control based on bandwidth estimation techniques 1 2004
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (1)
7,627,659 Method and devices for adaptive proxying of flows 0 2002

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