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For the Inventor, By the Inventor

Mesa, AZ, United States of America

Stephen Chih-Hung Ma

This inventor holds 12 USPTO granted patents and 1 EPO patent. Top assignee: Motorola Corporation. Active years: 1991-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stephen Chih-Hung Ma. Retrieved from https://idiyas.com/inventor/stephen-chih-hung-ma

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0


Average Co-Inventor Count = 3.7

ph-index = 10

Forward Citations = 648(Granted Patents)


Company Filing History:

goldMedal12 out of 20,290 
 
Motorola Corporation
 patents

Years Active: 1991-2000

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12 patents (USPTO):Explore Patents
1. 6100756 - Method and apparatus for high efficiency power amplification (2000-08-08),
2. 6061023 - Method and apparatus for producing wide null antenna patterns (2000-05-09),
3. 6038265 - Apparatus for amplifying a signal using digital pulse width modulators (2000-03-14),
4. 6002375 - Multi-substrate radio-frequency circuit (1999-12-14),
5. 5961579 - Apparatus using a logarithm based processor (1999-10-05),
6. 5920596 - Apparatus for amplifying a signal using a digital processor (1999-07-06),
7. 5917447 - Method and system for digital beam forming (1999-06-29),
8. 5856804 - Method and intelligent digital beam forming system with improved signal (1999-01-05),
9. 5754139 - Method and intelligent digital beam forming system responsive to traffic (1998-05-19),
10. 5754138 - Method and intelligent digital beam forming system for interference (1998-05-19),
11. 5619211 - Position locating and communication system using multiple satellite (1997-04-08),
12. 4998111 - CPS transform correlation receiver and method (1991-03-05),

Title: Innovations of Stephen Chih-Hung Ma

Introduction

Stephen Chih-Hung Ma is a prominent inventor based in Mesa, AZ, known for his significant contributions to the field of communication systems. He holds a total of 12 patents, showcasing his expertise and innovative spirit in developing advanced technologies.

Latest Patents

Among his latest patents is a "Method and apparatus for high efficiency power amplification." This invention focuses on efficient power amplification of wideband signals, utilizing an envelope detector, a soft switch modulator, and a power amplifier. The design ensures that electrical signal path lengths within the soft switch driver are dynamically modified to optimize performance. Another notable patent is the "Method and apparatus for producing wide null antenna patterns." This invention features an enhanced digital beamformer that mitigates interference and increases the frequency reuse factor in communication systems. It is designed to produce wide nulls in steerable antenna beam patterns, significantly improving the capacity of communication systems.

Career Highlights

Stephen Chih-Hung Ma is currently employed at Motorola Corporation, where he continues to innovate and develop cutting-edge technologies. His work has had a profound impact on the efficiency and effectiveness of communication systems.

Collaborations

Throughout his career, Stephen has collaborated with notable colleagues, including Shay-Ping T Wang and ShaoWei Wei Pan. These collaborations have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Stephen Chih-Hung Ma's contributions to the field of communication technology through his patents and innovations highlight his role as a leading inventor. His work continues to influence the industry and pave the way for future advancements.

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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