Company Filing History:

9 out of 5,162

Marvell International Limited

patents

2 out of 27,394

Hewlett-packard Development Company, L.p.

patents

Years Active: 2009-2016

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9413567 - Systems and methods for finite impulse response adaptation for gain and phase control (2016-08-09),

2. 9025262 - Systems and methods for asymmetry detection based on a synchronization mark (2015-05-05),

3. 8964323 - System and method for detecting and correcting shift in a DC level of an input signal (2015-02-24),

4. 8824074 - Hybrid defect detection for recording channels (2014-09-02),

5. 8779847 - Systems and methods for finite impulse response adaptation for gain and phase control (2014-07-15),

6. 8730609 - DC shift detection and correction (2014-05-20),

7. 8593747 - Hybrid defect detection for recording channels (2013-11-26),

8. 8339720 - Hybrid defect detection for recording channels (2012-12-25),

9. 8164846 - Hybrid defect detection for recording channels (2012-04-24),

10. 7645929 - Computational music-tempo estimation (2010-01-12),

11. 7521620 - Method of and system for browsing of music (2009-04-21),

Title: Innovations and Contributions of Yu-Yao Chang

Introduction

Yu-Yao Chang is a prominent inventor based in Sunnyvale, CA, known for his significant contributions to signal processing technologies. With a total of 11 patents to his name, Chang has made remarkable advancements in the field, particularly in systems and methods for signal adaptation and asymmetry detection.

Latest Patents

One of Yu-Yao Chang's latest patents is titled "Systems and methods for finite impulse response adaptation for gain and phase control." This invention provides a method for signal processing where an input signal is received at a finite impulse response filter circuit. The circuit includes multiple stages, each associated with a sample value of the input signal and a stage weight. The output signal generated is a weighted sum of the sample values, and an error signal indicates the difference between the output signal and a target. A constraint is applied to adjust the stage weights, aiming to minimize the error signal.

Another notable patent is "Systems and methods for asymmetry detection based on a synchronization mark." This invention evaluates an asymmetry metric by processing a synchronization signal, a filtered signal, and a reference signal. A processor identifies values from the filtered signal based on a peak indicator signal and evaluates an asymmetry metric from these values.

Career Highlights

Throughout his career, Yu-Yao Chang has worked with leading technology companies, including Marvell International Limited and Hewlett-Packard Development Company, L.P. His experience in these organizations has contributed to his expertise in developing innovative solutions in signal processing.

Collaborations

Yu-Yao Chang has collaborated with notable professionals in his field, including Michael Madden and Gregory Burd. Their teamwork has likely fostered an environment of innovation and creativity, leading to the development of impactful technologies.

Conclusion

Yu-Yao Chang's contributions to signal processing through his patents and collaborations highlight his role as a significant inventor in the technology sector. His work continues to influence advancements in the field, showcasing the importance of innovation in driving progress.

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