Congestion control system for VoIP network

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7391765
APP PUB NO 20030107991A1
SERIAL NO

10116929

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system according to this invention executes congestion control for monitoring a packet flow which passes through a relay router in a VoIP network and in which a packet is transferred with a predetermined priority, and for, when congestion is generated by generation of a new packet flow, maintaining a transfer state of a packet of a packet flow established before the new packet flow is generated and transferred with the predetermined priority.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FUJITSU LIMITEDKAWASAKI18047

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Ryuji Kawasaki, JP 4 21
Sakata, Masataka Kawasaki, JP 11 55
Tezuka, Yasuo Yokohama, JP 36 432

Cited Art Landscape

Patent Info (Count) # Cites Year
 
YAHOO HOLDINGS, INC. (1)
* 7042841 Controlling network congestion using a biased packet discard policy for congestion control and encoded session packets: methods, systems, and program products 91 2001
 
LUCENT TECHNOLOGIES INC. (1)
* 7002919 Method and system for guaranteeing quality of service for voice-over-IP services 32 2000
 
CISCO TECHNOLOGY, INC. (2)
* 6515963 Per-flow dynamic buffer management 87 1999
* 6865185 Method and system for queuing traffic in a wireless communications network 146 2000
 
INTELLECTUAL VENTURES I LLC (3)
* 6452915 IP-flow classification in a wireless point to multi-point (PTMP) transmission system 711 1999
* 6628629 Reservation based prioritization method for wireless transmission of latency and jitter sensitive IP-flows in a wireless point to multi-point transmission system 203 1999
* 6640248 Application-aware, quality of service (QoS) sensitive, media access control (MAC) layer 508 1999
 
RPX CORPORATION (2)
* 6687245 System and method for performing IP telephony 133 2001
* 7068647 System and method for routing IP packets 27 2001
 
MICROSOFT TECHNOLOGY LICENSING, LLC (1)
* 7133362 Intelligent buffering process for network conference video 25 2001
 
AUDIOCODES, INC. (1)
* 6381242 Content processor 136 2000
 
SYMANTEC CORPORATION (1)
* 6456630 Method for data rate control for heterogenous or peer internetworking 42 1998
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (1)
* 7082133 Apparatus and method for enabling voice over IP support for a network switch 73 2000
 
NORTEL NETWORKS LIMITED (1)
* 6449251 Packet mapper for dynamic data packet prioritization 139 1999
 
RAKUTEN, INC. (1)
* 6424657 Traffic queueing for remote terminal DSLAMs 129 2000
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
AT&T INTELLECTUAL PROPERTY I, L.P. (2)
* 7646726 System for detecting packetization delay of packets in a network 0 2005
* 2006/0280,163 System for detecting packetization delay of packets in a network 7 2005
 
ERICSSON AB (1)
* 2008/0267,064 Communications System and Method for Load Management 4 2005
 
MICROSOFT TECHNOLOGY LICENSING, LLC (2)
* 8599704 Assessing gateway quality using audio systems 2 2007
* 2008/0177,534 Assessing gateway quality using audio systems 7 2007
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
8817609 Communications system and method for load management 0 2005
 
ITXC IP Holdings S.a.r.l. (2)
* 8638779 Methods and apparatus for managing voice over IP telephony 0 2004
* 2005/0185,657 Methods and apparatus for managing voice over IP telephony 12 2004
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 24, 2019
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00