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Walter J. Downey
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Los Gatos, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Communication media sharing among devices having dissimilar physica...
Patent number
11,863,320
Issue date
Jan 2, 2024
Dialog Semiconductor US Inc.
Walter Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and systems for applying an improved interleaver for modems...
Patent number
10,135,467
Issue date
Nov 20, 2018
Echelon Corporation
Walter Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Modulation adaption method for multi-mode modems
Patent number
9,973,300
Issue date
May 15, 2018
Echelon Corporation
Walter Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for phase-based multi-carrier modulation (MCM)...
Patent number
9,954,796
Issue date
Apr 24, 2018
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system of enhancing signal processing in a shared medium...
Patent number
9,681,461
Issue date
Jun 13, 2017
Echelon Corporation
Philip H. Sutterlin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system of improved galois multiplication
Patent number
9,672,009
Issue date
Jun 6, 2017
Echelon Corporation
Walter J. Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for multi-carrier modulation (MCM) packet dete...
Patent number
9,614,706
Issue date
Apr 4, 2017
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for multi-carrier modulation (MCM) packet dete...
Patent number
9,413,575
Issue date
Aug 9, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for phase-based multi-carrier modulation (MCM)...
Patent number
9,363,128
Issue date
Jun 7, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system of enhancing signal processing in a shared medium...
Patent number
9,356,854
Issue date
May 31, 2016
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system of improved reed-solomon decoding
Patent number
9,250,862
Issue date
Feb 2, 2016
Echelon Corporation
Walter J. Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system of enhancing signal processing in a shared medium...
Patent number
9,246,787
Issue date
Jan 26, 2016
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for phase-based multi-carrier modulation (MCM)...
Patent number
9,246,733
Issue date
Jan 26, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for multi-carrier modulation (MCM) packet dete...
Patent number
9,246,726
Issue date
Jan 26, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system of improved Galois multiplication
Patent number
9,235,554
Issue date
Jan 12, 2016
Echelon Corporation
Walter J. Downey
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Circuit for use with switched leg power supply
Patent number
7,227,341
Issue date
Jun 5, 2007
Echelon Corporation
Walter J. Downey
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Input/output buffer incorporating filter for powerline communicatio...
Patent number
6,636,117
Issue date
Oct 21, 2003
Echelon Corporation
Philip H. Sutterlin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for defining and generating local oscillator s...
Patent number
6,484,018
Issue date
Nov 19, 2002
Echleon Corporation
Walter J. Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for defining and generating local oscillator s...
Patent number
6,442,381
Issue date
Aug 27, 2002
Echelon Corporation
Walter J. Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Transmission and detection of data in a dual channel transceiver
Patent number
6,414,968
Issue date
Jul 2, 2002
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Error correcting using signal anomaly as a hint
Patent number
6,295,625
Issue date
Sep 25, 2001
Echelon Corporation
Walter J. Downey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switched leg power supply
Patent number
6,043,635
Issue date
Mar 28, 2000
Echelon Corporation
Walter J. Downey
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and apparatus for robust communication based upon angular mo...
Patent number
5,828,676
Issue date
Oct 27, 1998
Echelon Corporation
Amy O. Hurlbut
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for powering a transmitter from a switched leg
Patent number
5,701,240
Issue date
Dec 23, 1997
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for detecting a signal in a communications system
Patent number
5,553,081
Issue date
Sep 3, 1996
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sigma-delta converter having a digital logic gate core
Patent number
5,471,209
Issue date
Nov 28, 1995
Echelon Corporation
Philip H. Sutterlin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for reducing errors in data caused by noise th...
Patent number
5,463,662
Issue date
Oct 31, 1995
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transceiver with rapid mode switching capability
Patent number
5,239,686
Issue date
Aug 24, 1993
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Printed circuit radio frequency antenna
Patent number
5,206,657
Issue date
Apr 27, 1993
Echelon Corporation
Walter J. Downey
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
COMMUNICATION MEDIA SHARING AMONG DEVICES HAVING DISSIMILAR PHYSICA...
Publication number
20220278773
Publication date
Sep 1, 2022
Dialog Semiconductor US Inc.
Walter Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MODULATION ADAPTION METHOD FOR MULTI-MODE MODEMS
Publication number
20170359145
Publication date
Dec 14, 2017
Echelon Corporation
Walter Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS AND SYSTEMS FOR APPLYING AN IMPROVED INTERLEAVER FOR MODEMS...
Publication number
20170359149
Publication date
Dec 14, 2017
Echelon Corporation
Walter Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR PHASE-BASED MULTI-CARRIER MODULATION (MCM)...
Publication number
20160218995
Publication date
Jul 28, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM OF ENHANCING SIGNAL PROCESSING IN A SHARED MEDIUM...
Publication number
20160157249
Publication date
Jun 2, 2016
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MULTI-CARRIER MODULATION (MCM) PACKET DETE...
Publication number
20160142240
Publication date
May 19, 2016
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and System of Improved Galois Multiplication
Publication number
20160124717
Publication date
May 5, 2016
Echelon Corporation
Walter J. Downey
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND APPARATUS FOR MULTI-CARRIER MODULATION (MCM) PACKET DETE...
Publication number
20140269948
Publication date
Sep 18, 2014
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM OF IMPROVED GALOIS MULTIPLICATION
Publication number
20140280408
Publication date
Sep 18, 2014
Walter J. Downey
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND SYSTEM OF ENHANCING SIGNAL PROCESSING IN A SHARED MEDIUM...
Publication number
20140269758
Publication date
Sep 18, 2014
Echelon Corporation
Philip H. Sutterlin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM OF IMPROVED REED-SOLOMON DECODING
Publication number
20140280423
Publication date
Sep 18, 2014
Walter J. Downey
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND APPARATUS FOR PHASE-BASED MULTI-CARRIER MODULATION (MCM)...
Publication number
20140269949
Publication date
Sep 18, 2014
Echelon Corporation
Walter J. Downey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Circuit for use with switched leg power supply
Publication number
20060158171
Publication date
Jul 20, 2006
Walter J. Downey
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Input/output buffer incorporating filter for powerline communicatio...
Publication number
20030122625
Publication date
Jul 3, 2003
Philip H. Sutterlin
H03 - BASIC ELECTRONIC CIRCUITRY