Company Filing History:

7 out of 9,364

Lucent Technologies Inc.

patents

4 out of 3,345

At&t Bell Laboratories

patents

2 out of 745

American Telephone & Telegraph Co., At&t Bell Laboratories

American Telephone and Telegraph, Co.

patents

where one patent can have more than one assignee

Years Active: 1988-2001

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6169970 - Generalized analysis-by-synthesis speech coding method and apparatus (2001-01-02),

2. 5884253 - Prototype waveform speech coding with interpolation of pitch, (1999-03-16),

3. 5839102 - Speech coding parameter sequence reconstruction by sequence (1998-11-17),

4. 5719993 - Long term predictor (1998-02-17),

5. 5717823 - Speech-rate modification for linear-prediction based (1998-02-10),

6. 5704003 - RCELP coder (1997-12-30),

7. 5675701 - Speech coding parameter smoothing method (1997-10-07),

8. 5517595 - Decomposition in noise and periodic signal waveforms in waveform (1996-05-14),

9. 5513297 - Selective application of speech coding techniques to input signal (1996-04-30),

10. 5267317 - Method and apparatus for smoothing pitch-cycle waveforms (1993-11-30),

11. 5091945 - Source dependent channel coding with error protection (1992-02-25),

12. 4910781 - Code excited linear predictive vocoder using virtual searching (1990-03-20),

13. 4899385 - Code excited linear predictive vocoder (1990-02-06),

14. 4797926 - Digital speech vocoder (1989-01-10),

15. 4771465 - Digital speech sinusoidal vocoder with transmission of only subset of (1988-09-13),

Title: Willem Bastiaan Kleijn: A Pioneer in Speech Coding Technologies

Introduction: Willem Bastiaan Kleijn, an accomplished inventor based in Basking Ridge, NJ, has made significant contributions to the field of speech coding. With a remarkable portfolio of 15 patents, he has developed innovative methods and apparatuses for analyzing and synthesizing speech signals, greatly impacting communication technologies.

Latest Patents: Among his latest inventions, the "Generalized analysis-by-synthesis speech coding method and apparatus" stands out. This patent reveals a technique for coding original signals by generating trial signals that are perceptually similar. By utilizing time-warps and time-shifts, estimates of these trial signals are synthesized and errors evaluated to create a coded representation of the original signal. Another notable patent is the "Prototype waveform speech coding with interpolation of pitch." This system focuses on reconstructing voiced speech by isolating and coding prototype waveforms, providing smoother pitch-cycle waveforms through a prototype interpolation process.

Career Highlights: Willem's career includes pivotal roles at esteemed organizations like Lucent Technologies Inc. and AT&T Bell Laboratories. He has played a crucial role in advancing speech recognition technologies, which have been foundational in telecommunications and related fields.

Collaborations: Throughout his career, Willem has collaborated with eminent experts in the industry, including Richard H. Ketchum and Edward C. Bronson. These collaborations have fostered innovation and contributed to the development of effective speech coding methods.

Conclusion: Willem Bastiaan Kleijn is a remarkable inventor whose work has significantly advanced the methodology of speech coding. His patents not only illustrate his innovative thinking but also highlight the importance of collaboration in achieving groundbreaking technological advancements. Through his contributions, he continues to influence the future of communication technologies.

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