Unframed isochronous shaping method to reduce delay and delay variation in a CBR transmission system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6195333
SERIAL NO

08958542

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Flow shaping is executed at each ATM device in a virtual circuit formed in an ATM network. More particularly, the flow of data units through the virtual circuit is controlled at each ATM switch such that the variable transmission delay remains substantially constant from hop to hop. Flow shaping at each device causes variable transmission delay to remain substantially constant throughout the virtual circuit, thereby allowing formation of an ATM virtual circuit having an arbitrarily large number of ATM switch 'hops' without constraints imposed by required playout buffer size. Further, the invention minimizes end-to-end delay.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FUJITSU LIMITEDKAWASAKI18047
FUJITSU NETWORK COMMUNICATIONS, INC.RICHARDSON, TX8

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wise, Jeffrey L Acton, MA 9 95

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (3)
* 5402416 Method and system for buffer occupancy reduction in packet switch network 63 1994
* 5796719 Traffic flow regulation to guarantee end-to-end delay in packet switched networks 61 1996
* 5995486 Flow control method and apparatus for cell-based communication networks 36 1997
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
* 5544324 Network for transmitting isochronous-source data using a frame structure with variable number of time slots to compensate for timing variance between reference clock and data rate 66 1992
 
TELEFONAKTIEBOLAGET L M ERICSSPN (PUBL) (1)
* 5729529 Timing and synchronization technique for ATM system 15 1995
 
CISCO TECHNOLOGY, INC. (1)
* 5602830 Method and an apparatus for shaping the output traffic in a fixed length cell switching network node 50 1995
 
UNWIRED PLANET, LLC (1)
* 5936964 Round-trip delay optimization of multiplexed speech channels 36 1997
 
XEROX CORPORATION (1)
* 5926459 Rate shaping in per-flow queued routing mechanisms for available bit rate service 87 1997
 
ENTERASYS NETWORKS, INC. (2)
* 5515363 Traffic shaping system with transmit latency feedback for asynchronous transfer mode networks 109 1994
* 5568470 Method for controlled-latency transfer of transmitt ATM traffic and synchronous feedback over a physical interface 29 1995
 
CONEXANT SYSTEMS UK LTD. (1)
* 5953336 Method and apparatus for source rate pacing in an ATM network 100 1996
 
MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC. (1)
* 5392280 Data transmission system and scheduling protocol for connection-oriented packet or cell switching networks 224 1994
 
KABUSHIKI KAISHA TOSHIBA (1)
* 5572523 Method of controlling communication network incorporating virtual channels exchange nodes and virtual paths exchange nodes 11 1995
 
COMPUTER SPORTS MEDICINE, INC. (1)
* 4893318 Method for referencing multiple data processors to a common time reference 33 1988
 
QPSX DEVELOPMENTS 5 PTY LTD. (1)
* 5689499 Method and apparatus for managing the statistical multiplexing of data in digital communication networks 43 1995
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
AT&T LABS, INC. (2)
7227837 Fault tolerant virtual tandem switch 15 2000
6765903 ATM-based distributed network switching system 40 2000
 
CISCO TECHNOLOGY, INC. (3)
* 7392279 Network traffic shaping using time-based queues 24 1999
* 7583707 System, method and apparatus for controlling a network post-demultiplexing function 0 2005
* 2006/0215,669 System, method and apparatus for controlling a network post-demultiplexing function 3 2005
 
UBER TECHNOLOGIES, INC. (7)
* 6343065 System and method of measurement-based adaptive caching of virtual connections 25 2000
7248562 System and method for measurement-based adaptive caching of virtual connections 5 2001
* 2002/0064,129 System and method for measurement-based adaptive caching of virtual connections 5 2001
7586844 System and method for measurement-based adaptive caching of virtual connections 5 2007
* 2007/0230,340 SYSTEM AND METHOD FOR MEASUREMENT-BASED ADAPTIVE CACHING OF VIRTUAL CONNECTIONS 8 2007
8059536 System and method for measurement-based adaptive caching of virtual connections 0 2009
* 2009/0296,576 SYSTEM AND METHOD FOR MEASUREMENT-BASED ADAPTIVE CACHING OF VIRTUAL CONNECTIONS 5 2009
 
AT&T Labs, Inc. (3)
7304986 ATM-based distributed network switching system 5 2006
7843932 Secure ATM-based distributed virtual tandem switching system and method 0 2006
* 2007/0286,200 FAULT TOLERANT ATM-BASED DISTRIBUTED VIRTUAL TANDEM SWITCHING SYSTEM AND METHOD 0 2007
 
MOTOROLA, INC. (1)
* 2005/0047,415 Data traffic manager and method therefor 10 2003
 
SBC TECHNOLOGY RESOURCES, INC. (8)
6757278 Secure ATM-based distributed virtual tandem switching system and method 27 2000
7099311 Virtual tandem switch 1 2001
* 2002/0093,947 ATM-based distributed virtual tandem switching system 6 2001
7136378 Secure ATM-based distributed virtual tandem switching system and method 1 2004
* 2004/0179,531 Secure ATM-based distributed virtual tandem switching system and method 14 2004
7095734 Distributed virtual tandem switch 1 2004
* 2004/0233,909 ATM-based distributed network switching system 1 2004
* 2006/0274,732 ATM-based distributed virtual tandem switching systme 11 2006
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (1)
* 7170901 Integer based adaptive algorithm for de-jitter buffer control 6 2001
* Cited By Examiner