Inventor
GRAVES ALAN F
CA44 patents
⚠️ This page may combine multiple inventors who share the name “GRAVES ALAN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTEL NETWORKS LTD
25 patentsUS6519255B1Feb 11, 2003
Universal optical network unit for use in narrowband and broadband access networks
NORTEL NETWORKS LTD116 citations98
US7676380B2Mar 9, 2010
Use of location awareness to establish and suspend communications sessions in a healthcare environment
NORTEL NETWORKS LTD68 citations97
US7599620B2Oct 6, 2009
Communications network for a metropolitan area
NORTEL NETWORKS LTD64 citations96
US6606427B1Aug 12, 2003
Switch for optical signals
NORTEL NETWORKS LTD169 citations96
US6741572B1May 25, 2004
Architectures for communication networks
NORTEL NETWORKS LTD184 citations94
US6366716B1Apr 2, 2002
Optical switching device
NORTEL NETWORKS LTD43 citations93
US6704307B1Mar 9, 2004
Compact high-capacity switch
NORTEL NETWORKS LTD41 citations92
US7212739B2May 1, 2007
Protection switching arrangement for an optical switching system
NORTEL NETWORKS LTD24 citations91
US6999677B2Feb 14, 2006
Protection switching arrangement for an optical switching system
NORTEL NETWORKS LTD33 citations91
US6871021B2Mar 22, 2005
Optical switch with connection verification
NORTEL NETWORKS LTD27 citations91
US7620390B2Nov 17, 2009
Establishing a call session during an advertisement time period
NORTEL NETWORKS LTD28 citations88
US6690848B2Feb 10, 2004
Metropolitan photonic switch
NORTEL NETWORKS LTD32 citations88
US7088919B2Aug 8, 2006
Modular photonic switch with wavelength conversion
NORTEL NETWORKS LTD19 citations84
US6882800B1Apr 19, 2005
Optical switching system for switching opticals signals in wavelength groups
NORTEL NETWORKS LTD18 citations84
US7705726B2Apr 27, 2010
Wireless-enabled device with capability of responding to changes in operational state
NORTEL NETWORKS LTD18 citations83
US7079772B2Jul 18, 2006
Optical signal generator with stabilized carrier frequency output
NORTEL NETWORKS LTD18 citations82
US7043160B1May 9, 2006
Method, system and signal for carrying overhead information in a transport network employing photonic switching nodes
NORTEL NETWORKS LTD7 citations74
US7039318B2May 2, 2006
Dispersion discrimination and compensation system and optical switch for use therewith
NORTEL NETWORKS LTD9 citations74
US6657186B2Dec 2, 2003
Chromatic dispersion discriminator
NORTEL NETWORKS LTD12 citations74
US6586724B2Jul 1, 2003
Chromatic dispersion discriminator
NORTEL NETWORKS LTD12 citations74
US7220143B2May 22, 2007
Overlay to permit delivery of telephony and mission-critical data services to hospital-wide points of care
NORTEL NETWORKS LTD3 citations63
US7035541B2Apr 25, 2006
Wavelength architecture and implementation for a photonically switched network
NORTEL NETWORKS LTD3 citations62
US7120356B2Oct 10, 2006
Connection verification for optical switches
NORTEL NETWORKS LTD6 citations61
US7050667B2May 23, 2006
Metropolitan photonic switch
NORTEL NETWORKS LTD4 citations57
US6969842B2Nov 29, 2005
Dispersion discrimination for wideband optical signals
NORTEL NETWORKS LTD1 citations52
NORTHERN TELECOM LTD
13 patentsUS4994909AFeb 19, 1991
Video signal distribution system
NORTHERN TELECOM LTD196 citations96
US4667324AMay 19, 1987
Network multiplex structure
NORTHERN TELECOM LTD80 citations96
US4528550AJul 9, 1985
Method and apparatus for code conversion of binary of multilevel signals
NORTHERN TELECOM LTD58 citations94
US5029333AJul 2, 1991
Communications system
NORTHERN TELECOM LTD63 citations93
US4771419ASep 13, 1988
Method of and switch for switching information
NORTHERN TELECOM LTD54 citations93
US4408189AOct 4, 1983
Method and apparatus for code conversion of binary to multilevel signals
NORTHERN TELECOM LTD85 citations92
US4764921AAug 16, 1988
Method of multiplexing digital signals
NORTHERN TELECOM LTD37 citations90
US4733093AMar 22, 1988
Electronic apparatus with circuit cards and signals optically coupled therebetween
NORTHERN TELECOM LTD21 citations82
US4825286AApr 25, 1989
Digitization of video signals
NORTHERN TELECOM LTD14 citations74
US4698806AOct 6, 1987
Frame alignment of tributaries of a t.d.m. bit stream
NORTHERN TELECOM LTD15 citations73
US5021880AJun 4, 1991
Digital video signal compression
NORTHERN TELECOM LTD12 citations71
US4876682AOct 24, 1989
Switching tdm digital signals
NORTHERN TELECOM LTD8 citations71
US4622666ANov 11, 1986
Circuits for detecting framing bits in a t.d.m. bit stream
NORTHERN TELECOM LTD13 citations71
AVAYA INC
3 patentsUS7801743B2Sep 21, 2010
Use of location awareness of establish communications with a target clinician in a healthcare environment
AVAYA INC40 citations92
US7966008B2Jun 21, 2011
Use of location awareness to control radio frequency interference in a healthcare environment
AVAYA INC18 citations83
US7707044B2Apr 27, 2010
Use of location awareness to transfer communications sessions between terminals in a healthcare environment
AVAYA INC17 citations83
GRAVES ALAN F
2 patentsUS8180650B2May 15, 2012
Use of location awareness to request assistance for a medical event occurring in a healthcare environment
GRAVES ALAN F18 citations81
US8849360B2Sep 30, 2014
Systems and methods for communicating with wireless-enabled devices that are capable of responding to changes in operational state
GRAVES ALAN F0 citations48