Company Filing History:

9 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: 1977-2000

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10 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),

9. 4481659 - Apparatus and method of reducing the bit rate of PCM speech (1984-11-06),

10. 4061878 - Method and apparatus for speech detection of PCM multiplexed voice (1977-12-06),

Title: Innovations of Jean-Pierre Adoul: A Pioneer in Speech Coding

Introduction

Jean-Pierre Adoul, an influential inventor based in Sherbrooke, Canada, has made significant contributions to the field of speech coding and data transmission. With a commendable portfolio of 10 patents, his work exemplifies innovation and technical advancement in communications technology.

Latest Patents

Among his latest inventions is the "Baud-rate-independent ASVD transmission built around G.729 speech-coding." This inventive method and device enable simultaneous voice and data transmission over an analog channel. Adoul’s technique involves encoding a sampled voice signal, extracting its spectral and pitch information to produce a residual signal, and converting it into residual vectors for effective communication independent of the modem's Baud rate.

Another notable patent is the "Instability eradication for analysis-by-synthesis speech codecs," which addresses and removes instability issues inherent in speech/audio codecs caused by channel errors. This method ensures the reliability of speech synthesis by detecting conditions that signify instability and adjusting the pitch gain accordingly.

Career Highlights

Jean-Pierre Adoul has been associated with prominent institutions like the Université de Sherbrooke and IBM (International Business Machines Corporation). His experience in these organizations has undoubtedly shaped his approach to innovation and research, contributing to the significant advancements in communications technology that he is known for today.

Collaborations

During his career, Adoul has worked alongside notable colleagues such as Claude Laflamme and Tero Honkanen. These collaborations fostered an environment of creativity and advanced knowledge sharing, which led to breakthrough inventions in the realm of speech coding and data transmission.

Conclusion

Jean-Pierre Adoul's impressive array of patents and collaborative efforts reflect his dedication to innovation in the communication field. His contributions not only advance technology but also improve the efficiency and reliability of data transmission systems, making him a noteworthy figure among contemporary inventors.

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