Renee Johnston

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Dunrobin, CA

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Patents Grantslast 30 patents

Information Patent Grant
System for conditioning echo response of loop start trunk line
- Patent number 8,654,967
- Issue date Feb 18, 2014
- Mitel Networks Corporation
- Dieter Schulz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Narrow band tone detection in echo canceling system
- Patent number 7,792,280
- Issue date Sep 7, 2010
- Mitel Networks Corporation
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of adaptation step control in echo cancellers
- Patent number 7,724,893
- Issue date May 25, 2010
- Mitel Networks Corporation
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of measuring distortion and determining residue-echo thresho...
- Patent number 7,693,276
- Issue date Apr 6, 2010
- Mitel Networks Corporation
- Yonghua Fang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for detecting echo path changes in echo cancellers
- Patent number 7,508,931
- Issue date Mar 24, 2009
- Mitel Networks Corporation
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise level calculator for echo canceller
- Patent number 7,146,003
- Issue date Dec 5, 2006
- Zarlink Semiconductor Inc.
- Dieter Schulz
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM FOR CONDITIONING ECHO RESPONSE OF LOOP START TRUNK LINE
- Publication number 20070133786
- Publication date Jun 14, 2007
- MITEL NETWORKS CORPORATION
- Dieter Schulz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of measuring distortion and determining residue-echo thresho...
- Publication number 20060198329
- Publication date Sep 7, 2006
- MITEL NETWORKS CORPORATION
- Yonghua Fang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of adaptation step control in echo cancellers
- Publication number 20060029214
- Publication date Feb 9, 2006
- MITEL NETWORKS CORPORATION
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for detecting echo path changes in echo cancellers
- Publication number 20050169457
- Publication date Aug 4, 2005
- Mitel Networks Corporation
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Narrow band tone detection in echo canceling system
- Publication number 20050169458
- Publication date Aug 4, 2005
- Mitel Networks Corporation
- Renee Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Noise level calculator for echo canceller
- Publication number 20020039415
- Publication date Apr 4, 2002
- Dieter Schulz
- G10 - MUSICAL INSTRUMENTS ACOUSTICS