Inventor
LIU KEXING
CA19 patents
⚠️ This page may combine multiple inventors who share the name “LIU KEXING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTEL NETWORKS LTD
12 patentsUS6493117B1Dec 10, 2002
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD87 citations98
US6631018B1Oct 7, 2003
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD64 citations97
US6892032B2May 10, 2005
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD40 citations96
US6748174B2Jun 8, 2004
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD25 citations96
US6556321B1Apr 29, 2003
WDM optical network and switching node with pilot tone communications
NORTEL NETWORKS LTD32 citations96
US6529300B1Mar 4, 2003
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD43 citations96
US6795652B2Sep 21, 2004
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD13 citations92
US6563615B2May 13, 2003
Technique for detecting noise on a data channel
NORTEL NETWORKS LTD14 citations92
US6292290B1Sep 18, 2001
Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifier
NORTEL NETWORKS LTD31 citations88
US6757498B2Jun 29, 2004
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD9 citations82
US6751418B2Jun 15, 2004
WDM optical network with passive pass-through at each node
NORTEL NETWORKS LTD12 citations82
US6433869B1Aug 13, 2002
Wavelength measurement by dispersion timing
NORTEL NETWORKS LTD0 citations52