Inventor
HUMPHREY LESLIE DEREK
GB18 patents
⚠️ This page may combine multiple inventors who share the name “HUMPHREY LESLIE DEREK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTEL NETWORKS LTD
11 patentsUS6396853B1May 28, 2002
Providing data services to telecommunications user terminals
NORTEL NETWORKS LTD105 citations97
US6650697B1Nov 18, 2003
Wireline communication system and method of frequency allocation therein
NORTEL NETWORKS LTD80 citations95
US6563827B1May 13, 2003
Distribution network
NORTEL NETWORKS LTD36 citations92
US6434154B1Aug 13, 2002
TDM/TDMA distribution network
NORTEL NETWORKS LTD35 citations92
US6477249B1Nov 5, 2002
Communications signal splitter and filter
NORTEL NETWORKS LTD47 citations91
US6577650B1Jun 10, 2003
Method of setting-up and controlling synchronization within a modem
NORTEL NETWORKS LTD19 citations90
US6353636B1Mar 5, 2002
Symbol alignment method
NORTEL NETWORKS LTD39 citations90
US7075935B1Jul 11, 2006
Engineering operations channel provision
NORTEL NETWORKS LTD12 citations84
US6990105B1Jan 24, 2006
Transporting multiprotocol datagrams
NORTEL NETWORKS LTD17 citations84
US6449261B1Sep 10, 2002
Time division duplexed multicarrier transmission
NORTEL NETWORKS LTD11 citations73
US6483914B1Nov 19, 2002
Telephone filter arrangement
NORTEL NETWORKS LTD2 citations59
HUMPHREY LESLIE DEREK
3 patentsUS8588285B2Nov 19, 2013
Method and apparatus for operating a digital subscriber line arrangement
HUMPHREY LESLIE DEREK10 citations81
US9001974B2Apr 7, 2015
System for providing telephony and data services
HUMPHREY LESLIE DEREK6 citations71
US9025744B2May 5, 2015
System for providing telephony and data services
HUMPHREY LESLIE DEREK2 citations61