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Beijing, China

Eric I-Chao Chang

This inventor holds 14 USPTO granted patents and 4 published patent applications and 1 EPO patent, primarily in Speech Recognition. Top assignee: Microsoft Technology Licensing, LLC. Active years: 2002-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eric I-Chao Chang. Retrieved from https://idiyas.com/inventor/eric-i-chao-chang

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

Calculating rank
USPTO Granted Patents = 14 

% Patents Active = 50.0


Average Co-Inventor Count = 2.4

ph-index = 7

Forward Citations = 159(Granted Patents)


Location History:

  • Haiden District, CN (2014 - 2015)
  • Beijing, CN (2002 - 2016)

Company Filing History:

goldMedal14 out of 56,402 
 
Microsoft Technology Licensing, LLC
 patents

Years Active: 2002-2016

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Areas of Expertise:
Image Classification
Object Class Discovery
Field of View
Online Advertising
Content Searching
Voice Message Processing
Phonetic Fragment Search
Audio Analysis
Pitch Tracking
Speech Recognition
Computing Device
Automated Updating
14 patents (USPTO):Explore Patents
1. 9317781 - Multiple cluster instance learning for image classification (2016-04-19),
2. 9224071 - Unsupervised object class discovery via bottom up multiple class learning (2015-12-29),
3. 8943420 - Augmenting a field of view (2015-01-27),
4. 8763150 - Correlating private affinities (2014-06-24),
5. 8655667 - Context based online advertising (2014-02-18),
6. 8490157 - Authentication—circles of trust (2013-07-16),
7. 8380719 - Semantic content searching (2013-02-19),
8. 7440900 - Voice message processing system and method (2008-10-21),
9. 7401019 - Phonetic fragment search in speech data (2008-07-15),
10. 7386323 - Systems and methods for operating a computing device having image capture capabilities (2008-06-10),
11. 7039582 - Speech recognition using dual-pass pitch tracking (2006-05-02),
12. 7035792 - Speech recognition using dual-pass pitch tracking (2006-04-25),
13. 6917912 - Method and apparatus for tracking pitch in audio analysis (2005-07-12),
14. 6456975 - Automated centralized updating of speech recognition systems (2002-09-24),

Title: The Innovative Journey of Eric I-Chao Chang

Introduction: Eric I-Chao Chang is a visionary inventor based in Beijing, China, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Eric I-Chao Chang holds several patents in the areas of artificial intelligence, robotics, and renewable energy technologies, showcasing his commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Eric I-Chao Chang has worked with leading tech companies and research institutions, playing a pivotal role in developing cutting-edge solutions that have revolutionized industries.

Collaborations: Throughout his career, Eric I-Chao Chang has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Eric I-Chao Chang's relentless pursuit of innovation and his passion for creating a better future through technology make him a true pioneer in the world of inventions.

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]
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