Assignee
ECHELON CORP
US116 patents
Top patents by PatentIndex Score
US5519878AMay 21, 1996
System for installing and configuring (grouping and node address assignment) household devices in an automated environment
ECHELON CORP632 citations99
US5257006AOct 26, 1993
Method and apparatus for power line communications
ECHELON CORP237 citations99
US5192231AMar 9, 1993
Power line communications coupler
ECHELON CORP164 citations99
US6182130B1Jan 30, 2001
Method for enhancing the performance of a network
ECHELON CORP121 citations98
US5856972AJan 5, 1999
Duplicate message detection method and apparatus
ECHELON CORP137 citations98
US5844888ADec 1, 1998
Network and intelligent cell for providing sensing, bidirectional communications and control
ECHELON CORP190 citations98
US5737529AApr 7, 1998
Networked variables
ECHELON CORP161 citations98
US5491402AFeb 13, 1996
Apparatus and method for providing AC isolation while supplying DC power
ECHELON CORP255 citations98
US5485040AJan 16, 1996
Powerline coupling network
ECHELON CORP132 citations98
US5475687ADec 12, 1995
Network and intelligent cell for providing sensing, bidirectional communications and control
ECHELON CORP109 citations98
US5420572AMay 30, 1995
Configuration device for use in a networked communication system
ECHELON CORP188 citations98
US5404127AApr 4, 1995
Power line communication while avoiding determinable interference harmonics
ECHELON CORP212 citations98
US5355114AOct 11, 1994
Reconstruction of signals using redundant channels
ECHELON CORP207 citations98
US5289476AFeb 22, 1994
Transmission mode detection in a modulated communication system
ECHELON CORP333 citations98
US5239686AAug 24, 1993
Transceiver with rapid mode switching capability
ECHELON CORP175 citations98
US5113498AMay 12, 1992
Input/output section for an intelligent cell which provides sensing, bidirectional communications and control
ECHELON CORP179 citations98
US7187986B2Mar 6, 2007
Internet based home communications system
ECHELON CORP329 citations96
US7103016B1Sep 5, 2006
System and method for providing transaction control on a data network
ECHELON CORP84 citations96
US6580950B1Jun 17, 2003
Internet based home communications system
ECHELON CORP746 citations96
US6353861B1Mar 5, 2002
Method and apparatus for treating a logical programming expression as an event in an event-driven computer environment
ECHELON CORP75 citations96
US6043635AMar 28, 2000
Switched leg power supply
ECHELON CORP64 citations96
US5937003AAug 10, 1999
Adaptive reference pattern for spread spectrum detection claims
ECHELON CORP46 citations96
US5748671AMay 5, 1998
Adaptive reference pattern for spread spectrum detection
ECHELON CORP64 citations96
US5579335ANov 26, 1996
Split band processing for spread spectrum communications
ECHELON CORP72 citations96
US5471209ANov 28, 1995
Sigma-delta converter having a digital logic gate core
ECHELON CORP62 citations96
US5461629AOct 24, 1995
Error correction in a spread spectrum transceiver
ECHELON CORP72 citations96
US5263050ANov 16, 1993
Adaptive threshold in a spread spectrum communications system
ECHELON CORP69 citations96
US5249270ASep 28, 1993
Development system protocol
ECHELON CORP140 citations96
US5241283AAug 31, 1993
Drive amplifier for power line communications
ECHELON CORP80 citations96
US5210518AMay 11, 1993
Apparatus and method for reducing errors in data caused by noise
ECHELON CORP67 citations96
US5754779AMay 19, 1998
Selecting a protocol class of service for a network variable
ECHELON CORP62 citations95
US5579482ANov 26, 1996
Method and apparatus for storing interface information in a computer system
ECHELON CORP82 citations95
US5553081ASep 3, 1996
Apparatus and method for detecting a signal in a communications system
ECHELON CORP80 citations95
US5521491AMay 28, 1996
Phase detecting device for determining phase angle between two electrical signals
ECHELON CORP72 citations95
US5490276AFeb 6, 1996
Programming language structures for use in a network for communicating, sensing and controlling information
ECHELON CORP133 citations95
US5391932AFeb 21, 1995
Source power coupler
ECHELON CORP106 citations95
US5260974ANov 9, 1993
Adaptive carrier detection
ECHELON CORP78 citations95
US5812557ASep 22, 1998
Power line communications analyzer
ECHELON CORP91 citations94
US5454008ASep 26, 1995
Method and apparatus for interfacing between a twisted pair and an intelligent cell
ECHELON CORP49 citations94
US5424710AJun 13, 1995
Power coupler for coupling power from a transmission line to a node thereon
ECHELON CORP68 citations94
US5347549ASep 13, 1994
Method and apparatus for interfacing between a twisted pair and an intelligent cell
ECHELON CORP65 citations94
US5327426AJul 5, 1994
Method and apparatus for preventing unnecessary retransmission of messages in a networked messaging system
ECHELON CORP117 citations94
US5203003AApr 13, 1993
Computer architecture for conserving power by using shared resources and method for suspending processor execution in pipeline
ECHELON CORP157 citations94
US5034882AJul 23, 1991
Multiprocessor intelligent cell for a network which provides sensing, bidirectional communications and control
ECHELON CORP71 citations94
US6507260B1Jan 14, 2003
Electrical transformer for use with twisted pair
ECHELON CORP33 citations92
US6493739B1Dec 10, 2002
Task scheduling in an event driven environment
ECHELON CORP22 citations92
US6473450B1Oct 29, 2002
Adaptive reference pattern for spread spectrum detection
ECHELON CORP14 citations92
US5828676AOct 27, 1998
Method and apparatus for robust communication based upon angular modulation
ECHELON CORP42 citations92
US5500852AMar 19, 1996
Method and apparatus for network variable aliasing
ECHELON CORP48 citations92
US5463662AOct 31, 1995
Apparatus and method for reducing errors in data caused by noise through use of blanking
ECHELON CORP45 citations92
Showing the top 50 of 116 patents by PatentIndex Score.