Chengjie Tu

This inventor holds 48 USPTO granted patents and 1 published patent application, plus 2 CIPO patents and 11 EPO patents, primarily in Video Coding. Top assignee: Microsoft Technology Licensing, LLC. Active years: 2007-2025.

USPTO Granted Patents = 48 (Patent Applications = 1)

% Patents Active = 97.9

CIPO Patents = 2

EPO Patents = 11 (Patent Applications = 1)

Average Co-Inventor Count = 3.0

ph-index = 13

Forward Citations = 394(Granted Patents)

Company Filing History:

48 out of 56,194

Microsoft Technology Licensing, LLC

patents

Years Active: 2007-2025

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Areas of Expertise:

Adaptive Quantization

Video Coding

Chroma Parameter

Flexible Quantization

Scalable Encoding

Transform Coefficients

Motion Compensation

Entropy Coding

Image Organization

DC Leakage Reduction

Residual Layers

48 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12301817 - Determining chroma quantization parameter using index and quantization parameter of spatially neighboring unit (2025-05-13),

2. 12301816 - Determining chroma quantization parameter using index and quantization parameter of spatially neighboring unit (2025-05-13),

3. 12301815 - Determining chroma quantization parameter using index and quantization parameter of spatially neighboring unit (2025-05-13),

4. 12301814 - Predicting a quantization parameter for a current unit using quantization parameters of spatially neighboring units (2025-05-13),

5. 12301813 - Predicting a quantization parameter for a current unit using quantization parameters of spatially neighboring units (2025-05-13),

6. 11902525 - Adaptive quantization for enhancement layer video coding (2024-02-13),

7. 11863749 - Flexible quantization (2024-01-02),

8. 11843775 - Flexible quantization (2023-12-12),

9. 11778187 - Flexible quantization (2023-10-03),

10. 11778186 - Flexible quantization (2023-10-03),

11. 11528481 - Adaptive quantization for enhancement layer video coding (2022-12-13),

12. 11343503 - Flexible quantization (2022-05-24),

13. 11122268 - Adaptive quantization for enhancement layer video coding (2021-09-14),

14. 10958907 - Flexible quantization (2021-03-23),

15. 10602146 - Flexible Quantization (2020-03-24),

Title: Innovations by Chengjie Tu: Pioneering Adaptive Video Coding

Introduction: Chengjie Tu, based in Sammamish, WA, is a renowned inventor in the field of digital media encoding and decoding. With an impressive portfolio of 43 patents, he has significantly contributed to advancements in video technology, particularly in enhancing the efficiency and quality of video coding processes.

Latest Patents: Chengjie Tu's latest patents showcase his innovative approaches to video coding. One remarkable patent is focused on "Adaptive Quantization for Enhancement Layer Video Coding." This technology incorporates techniques and tools for encoding enhancement layers of video with quantization that varies spatially and across color channels. The decoding techniques ensure a seamless process whereby quantization parameters are effectively communicated through encoded bit streams. Another significant patent introduces "Flexible Quantization," enabling digital media encoders and decoders to vary quantization intricately along various dimensions, including spatial and frequency sub-bands. This dual approach not only optimizes the quality of video but also enhances the flexibility of the codec used.

Career Highlights: Chengjie Tu's career at Microsoft Technology Licensing, LLC, has been marked by a focused dedication to innovating video coding technologies. His work aims to enhance the viewing experience for users by improving the efficiency of digital media encoding, making significant strides in how video data is processed.

Collaborations: Throughout his career, Chengjie has collaborated with esteemed colleagues, including Sridhar Srinivasan and Shankar Lakshmi Regunathan. Their combined expertise has led to advancements that continue to influence the future of digital media technologies.

Conclusion: Chengjie Tu stands out as a leading inventor whose contributions to adaptive and flexible video coding are paving the way for the future of digital media. His innovative patents are evidence of his commitment to enhancing video quality and efficiency, making significant waves in the industry.