Company Filing History:

7 out of 66

Université De Sherbrooke

patents

1 out of 164,108

International Business Machines Corporation

patents

1 out of 1

University De Sherbrooke

patent

where one patent can have more than one assignee

Years Active: 1995-2000

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6028890 - Baud-rate-independent ASVD transmission built around G.729 speech-coding (2000-02-22),

2. 5987406 - Instability eradication for analysis-by-synthesis speech codecs (1999-11-16),

3. 5893060 - Method and device for eradicating instability due to periodic signals in (1999-04-06),

4. 5754976 - Algebraic codebook with signal-selected pulse amplitude/position (1998-05-19),

5. 5701392 - Depth-first algebraic-codebook search for fast coding of speech (1997-12-23),

6. 5699482 - Fast sparse-algebraic-codebook search for efficient speech coding (1997-12-16),

7. 5664053 - Predictive split-matrix quantization of spectral parameters for (1997-09-02),

8. 5444816 - Dynamic codebook for efficient speech coding based on algebraic codes (1995-08-22),

Title: Claude Laflamme: Innovator in Voice and Data Transmission

Introduction

Claude Laflamme is a notable inventor based in Sherbrooke, Canada. He holds a total of eight patents, showcasing his significant contributions to the field of voice and data transmission technologies. His innovative work has paved the way for advancements in communication systems.

Latest Patents

One of Laflamme's latest patents is the "Baud-rate-independent ASVD transmission built around G.729 speech-coding." This invention describes a method and device for analog simultaneous voice and data transmission over an analog channel. It encodes a sampled voice signal, extracting spectral and pitch information to produce a residual signal. The residual signal is then converted into a sequence of residual vectors at a Baud rate, allowing for efficient data transmission.

Another significant patent is the "Instability eradication for analysis-by-synthesis speech codecs." This invention addresses the instability inherent in analysis-by-synthesis speech/audio codecs, particularly during the transmission of highly periodic signals. The method involves detecting specific conditions and adjusting the pitch gain to eliminate occasional instability, ensuring a more reliable audio output.

Career Highlights

Laflamme has worked with esteemed organizations such as the Université de Sherbrooke and IBM. His experience in these institutions has contributed to his expertise in developing innovative communication technologies.

Collaborations

Throughout his career, Laflamme has collaborated with notable individuals, including Jean-Pierre Adoul and Tero Honkanen. These partnerships have further enriched his work and led to significant advancements in his field.

Conclusion

Claude Laflamme's contributions to voice and data transmission technologies are noteworthy. His innovative patents and collaborations reflect his dedication to advancing communication systems. His work continues to influence the industry and inspire future innovations.

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