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Inventor

Roch Lefebvre

Inventor
Magog, CA

Overview

16→
Patents
2004–2020
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G10Lprimary
G10LSpeech analysis techniques or speech synthesis71%
H03MCoding24%
G06FElectric digital data processing5%
PatentTitleYear
10,621,996Low bitrate audio encoding/decoding scheme having cascaded switches202010,545,942Querying and projecting values within sets in a table dataset202010,319,384Low bitrate audio encoding/decoding scheme having cascaded switches20199,552,822'Apparatus and method for processing an audio signal and for providing a higher temporal granularity for a combined unified speech and audio codec (USAC)'20178,959,017'Audio encoding/decoding scheme having a switchable bypass'20158,930,198'Low bitrate audio encoding/decoding scheme having cascaded switches'20158,484,038'Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation'20138,321,210'Audio encoding/decoding scheme having a switchable bypass'20128,036,885'Method and device for adaptive bandwidth pitch search in coding wideband signals'20117,672,837'Method and device for adaptive bandwidth pitch search in coding wideband signals'20107,529,660'Method and device for frequency-selective pitch enhancement of synthesized speech'20097,260,521'Method and device for adaptive bandwidth pitch search in coding wideband signals'20077,191,123'Gain-smoothing in wideband speech and audio signal decoder'20077,151,802'High frequency content recovering method and device for over-sampled synthesized wideband signal'20066,807,524'Perceptual weighting device and method for efficient coding of wideband signals'20046,795,805'Periodicity enhancement in decoding wideband signals'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2019Patents assigned to VOICEAGE CORP (14)· patent assignee history
2004–2020Based in Magog, CA· patent location history
2010–2013Based in Quebec, CA· patent location history
2012–2020Patents assigned to FRAUNHOFER GES FORSCHUNG (6)· patent assignee history
2012–2015Patents assigned to BAYER STEFAN (3)· patent assignee history
2012–2015Patents assigned to BESSETTE BRUNO (3)· patent assignee history
2012–2015Patents assigned to GEIGER RALF (3)· patent assignee history
2020Based in Gatineau, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VOICEAGE CORP142004–2019
FRAUNHOFER GES FORSCHUNG62012–2020
BAYER STEFAN32012–2015
BESSETTE BRUNO32012–2015
GEIGER RALF32012–2015
Locations
LocationPatentsSpan
Magog, CA132004–2020
Quebec, CA22010–2013
Gatineau, CA12020