Assignee
NORTEL NETWORK LTD
17 patents
Top patents by PatentIndex Score
US7130368B1Oct 31, 2006
Clock recovery using a direct smoothing process
NORTEL NETWORK LTD277 citations99
US6256511B1Jul 3, 2001
Dual-mode radio architecture
NORTEL NETWORK LTD194 citations96
US7177399B2Feb 13, 2007
Determining the geographical location from which an emergency call originates in a packet-based communications network
NORTEL NETWORK LTD300 citations95
US6798772B2Sep 28, 2004
Method for public access to private phone numbers and other telephonic peripherals using a caller access code
NORTEL NETWORK LTD95 citations94
US6920125B1Jul 19, 2005
IP adaptation layer on backhaul connection of cellular network
NORTEL NETWORK LTD52 citations93
US7606541B1Oct 20, 2009
Enhanced holdover for synchronous networks employing packet switched network backhaul
NORTEL NETWORK LTD34 citations91
US6877132B1Apr 5, 2005
Method and apparatus for channel decoding of tail-biting convolutional codes
NORTEL NETWORK LTD59 citations91
US7373646B1May 13, 2008
Method and apparatus for sharing stack space between multiple processes in a network device
NORTEL NETWORK LTD28 citations90
US7894450B2Feb 22, 2011
Implementation of VPNs over a link state protocol controlled ethernet network
NORTEL NETWORK LTD14 citations83
US6857014B1Feb 15, 2005
Method and system for designing a network
NORTEL NETWORK LTD30 citations80
US6757098B2Jun 29, 2004
Highly scalable modular optical amplifier based subsystem
NORTEL NETWORK LTD8 citations72
US7281326B1Oct 16, 2007
Technique for routing conductive traces between a plurality of electronic components of a multilayer signal routing device
NORTEL NETWORK LTD7 citations71
US6304655B1Oct 16, 2001
Signal capture for telecommunications switch
NORTEL NETWORK LTD8 citations67
US7570629B1Aug 4, 2009
Distribution of packets to multiple addresses
NORTEL NETWORK LTD5 citations63
US7486615B2Feb 3, 2009
Network data routing protection cycles for automatic protection switching
NORTEL NETWORK LTD3 citations62
US7616940B2Nov 10, 2009
Stand-alone low noise amplifier
NORTEL NETWORK LTD5 citations58
US7421489B2Sep 2, 2008
Network protocols for distributing functions within a network
NORTEL NETWORK LTD5 citations53