logo

For the Inventor, By the Inventor

La Jolla, CA, United States of America

David C Bradley

This inventor holds 27 USPTO granted patents and 4 published patent applications and 3 EPO patents, primarily in Audio Signal Processing. Top assignees: Knuedge, Inc., The Intellisis Corporation, Friday Harbor LLC. Active years: 2013-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David C Bradley. Retrieved from https://idiyas.com/inventor/david-c-bradley

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 27 

% Patents Active = 7.4

 

Average Co-Inventor Count = 3.1

ph-index = 7

Forward Citations = 89(Granted Patents)


Location History:

  • La Jolla, CA (US) (2013 - 2019)
  • San Diego, CA (US) (2016 - 2019)

Company Filing History:

goldMedal14 out of 32 
 
Knuedge, Inc.
 patents
silverMedal10 out of 22 
 
The Intellisis Corporation
 patents
bronzeMedal3 out of 14 
 
Friday Harbor LLC
 patents

Years Active: 2013-2019

Loading Chart...
Loading Chart...
Areas of Expertise:
Pitch Estimation
Harmonic Signals
Noise Reduction
Audio Classification
Spectral Motion Transform
Frequency-Chirp Domain
Speech Enhancement
Signal Reconstruction
Sound Modeling
Symmetry Characteristics
Feature Extraction
Octave Error Reduction
27 patents (USPTO):Explore Patents
1. 10438613 - Estimating pitch of harmonic signals (2019-10-08),
2. 10283143 - Estimating pitch of harmonic signals (2019-05-07),
3. 10235993 - Classifying signals using correlations of segments (2019-03-19),
4. 9922668 - Estimating fractional chirp rate with multiple frequency representations (2018-03-20),
5. 9870785 - Determining features of harmonic signals (2018-01-16),
6. 9842611 - Estimating pitch using peak-to-peak distances (2017-12-12),
7. 9812148 - Estimation of noise characteristics (2017-11-07),
8. 9704506 - Harmonic feature processing for reducing noise (2017-07-11),
9. 9620130 - System and method for processing sound signals implementing a spectral motion transform (2017-04-11),
10. 9601119 - Systems and methods for segmenting and/or classifying an audio signal from transformed audio information (2017-03-21),
11. 9576589 - Harmonic feature processing for reducing noise (2017-02-21),
12. 9548067 - Estimating pitch using symmetry characteristics (2017-01-17),
13. 9530434 - Reducing octave errors during pitch determination for noisy audio signals (2016-12-27),
14. 9485597 - System and method of processing a sound signal including transforming the sound signal into a frequency-chirp domain (2016-11-01),
15. 9484044 - Voice enhancement and/or speech features extraction on noisy audio signals using successively refined transforms (2016-11-01),

Title: Innovations and Contributions of David C. Bradley

Introduction

David C. Bradley is a prominent inventor based in La Jolla, California, known for his significant contributions to technology through his innovative patents. With an impressive tally of 27 patents, he has made strides in various fields, particularly in signal processing.

Latest Patents

One of his latest patents, titled "Estimating Pitch of Harmonic Signals," focuses on the dynamic analysis of speech signals. This invention involves processing a sequence of speech frames to estimate the time-varying pitch. It introduces a method to compute an estimated fractional chirp rate for each frame, which is essential for creating a pitch template. This template reflects the time-varying nature of the signal, subject to a specific scale factor. Furthermore, the invention details a two-step process for pitch estimation, incorporating peak identification in frequency representations along with parametric function fitting, which enhances the accuracy of the pitch estimates.

Career Highlights

David C. Bradley has spent significant time at various innovative companies. Notably, he worked with Knuedge, Inc. and the Intellisis Corporation, where his expertise in technology and signal processing was pivotal in developing cutting-edge solutions that addressed complex problems in these sectors.

Collaborations

Throughout his career, Bradley has collaborated with notable professionals, including Robert Nicholas Hilton and Daniel S. Goldin. These partnerships have facilitated the exchange of ideas and have led to advancements in their respective fields, further showcasing his impact on innovation.

Conclusion

In summary, David C. Bradley’s contributions as an inventor are reflected in his numerous patents and collaborations with esteemed colleagues. His work, particularly on estimating pitch in harmonic signals, exemplifies the innovative spirit that continues to drive advancements in technology. As he progresses in his career, his inventions are anticipated to further shape the landscape of signal processing and beyond.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…