Xiaofan Fei

This inventor holds 56 USPTO granted patents and 2 published patent applications and 3 EPO patents, primarily in Audio Amplification (CPC class H03F). Top assignee: Cirrus Logic Inc.. Active years: 2002-2024.

USPTO Granted Patents = 56 (Patent Applications = 2)

% Patents Active = 98.2

EPO Patents = 3 (Patent Applications = 5)

Average Co-Inventor Count = 4.4

ph-index = 12

Forward Citations = 368(Granted Patents)

Forward Citations (Not Self Cited) = 322(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

56 out of 2,680

Cirrus Logic Inc.

patents

Years Active: 2002-2024

Loading Chart...

Areas of Expertise:

Audio Processing

Digital-To-Analog Converter

Class-D Amplifier

Noise Cancellation

Gain Control

Pulse Width Modulation

Signal Detection

Adaptive Noise Control

Playback System

Operational Amplifier

Switching Power Supply

Audio Output

56 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12039964 - Audio processing system signal-level based temporal masking (2024-07-16),

2. 11798978 - On-chip inductor with audio headphone amplifier (2023-10-24),

3. 11677360 - Equalization in a multi-path audio amplifier for canceling variations due to multi-path output impedance differences (2023-06-13),

4. 11552567 - Single-inductor multiple output (SIMO) switching power supply having offset common-mode voltage for operating a class-d audio amplifier (2023-01-10),

5. 11539331 - Signal amplitude-selected signal predistortion in an amplifier (2022-12-27),

6. 11522509 - Frequency-selective common-mode control and output stage biasing in an operational amplifier for a class-D amplifier loop filter (2022-12-06),

7. 11423872 - Dynamic range enhancement (DRE) control in adaptive noise cancellation (ANC) applications (2022-08-23),

8. 11329620 - Tracking and correcting gain of open-loop driver in a multi-path processing system (2022-05-10),

9. 11271583 - Current digital-to-analog converter with high-impedance output (2022-03-08),

10. 11190168 - Dual bootstrapping for an open-loop pulse width modulation driver (2021-11-30),

11. 11070203 - Dual bootstrapping for an open-loop pulse width modulation driver (2021-07-20),

12. 11050433 - Using a tracking switched-mode power supply to increase efficiency of a current digital-to-analog converter-based output stage (2021-06-29),

13. 11043959 - Current digital-to-analog converter with warming of digital-to-analog converter elements (2021-06-22),

14. 10840940 - Suppression of noise of delta-sigma modulators (2020-11-17),

15. 10770086 - Zero-latency pulse density modulation interface with format detection (2020-09-08),

Title: Xiaofan Fei: Pioneering Inventor from Austin

Introduction: Xiaofan Fei is a distinguished inventor based in Austin, Texas, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Xiaofan Fei holds several patents in the areas of artificial intelligence, machine learning, and robotics, showcasing his commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Xiaofan Fei has worked with leading tech companies, research institutions, and universities, honing his expertise in developing cutting-edge solutions that have revolutionized the industry.

Collaborations: Throughout his career, Xiaofan Fei has collaborated with top engineers, scientists, and researchers, fostering a culture of innovation and knowledge-sharing that has led to numerous breakthroughs in the tech sector.

Conclusion: Xiaofan Fei's relentless pursuit of innovation and his passion for creating transformative technologies have solidified his reputation as a visionary inventor in the vibrant tech hub of Austin, Texas.