Inventor
Renee Johnston
Inventor
Dunrobin, CA
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission75%
G10LSpeech analysis techniques or speech synthesis13%
H04QSelecting13%
PatentTitleYear
8,654,967'System for conditioning echo response of loop start trunk line'20147,792,280'Narrow band tone detection in echo canceling system'20107,724,893'Method of adaptation step control in echo cancellers'20107,693,276'Method of measuring distortion and determining residue-echo threshold in loop start trunk circuits'20107,508,931'Method for detecting echo path changes in echo cancellers'20097,146,003'Noise level calculator for echo canceller'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006Based in Ottawa, CA· patent location history
2009–2014Patents assigned to MITEL NETWORKS CORP (5)· patent assignee history
2009–2014Based in Dunrobin, CA· patent location history
2014Patents assigned to FANG YONGHUA (1)· patent assignee history
2014Patents assigned to JOHNSTON RENEE (1)· patent assignee history
2014Patents assigned to POPOVIC MIRJANA (1)· patent assignee history
2014Patents assigned to SCHULZ DIETER (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITEL NETWORKS CORP | 5 | 2009–2014 |
| FANG YONGHUA | 1 | 2014 |
| JOHNSTON RENEEself | 1 | 2014 |
| POPOVIC MIRJANA | 1 | 2014 |
| SCHULZ DIETER | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dunrobin, CA | 5 | 2009–2014 |
| Ottawa, CA | 1 | 2006 |