Company Filing History:

16 out of 9,639

Hewlett-Packard Company

patents

1 out of 5,313

Leland Stanford Junior University

patents

Years Active: 1976-1999

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5982831 - Feed forward method and apparatus for generating a clock signal (1999-11-09),

2. 5663666 - Digital phase detector (1997-09-02),

3. 5631933 - Phase-locked digital synthesizers (1997-05-20),

4. 5519625 - System for characterizing phase-modulated signals using a time interval (1996-05-21),

5. 5469466 - System for highly repeatable clock parameter recovery from data (1995-11-21),

6. 5384541 - Precision timed delay measurement using phaselocked CW technique (1995-01-24),

7. 5166959 - Picosecond event timer (1992-11-24),

8. 5128607 - Constant events frequency measurement and fast inverse circuit (1992-07-07),

9. 4996474 - Digital gate generation for a signal measurement instrument (1991-02-26),

10. 4627268 - Method for calibrating instruments for time interval measurements (1986-12-09),

11. 4613951 - Time interval measuring apparatus and method (1986-09-23),

12. 4519091 - Data capture in an uninterrupted counter (1985-05-21),

13. 4383166 - Automatic echo-chamber for measuring single time intervals by (1983-05-10),

14. 4164648 - Double vernier time interval measurement using triggered phase-locked (1979-08-14),

15. 3984770 - Frequency measurement using phase continuous frequency switching (1976-10-05),

Title: The Innovations of David C Chu

Introduction

David C Chu is a prominent inventor based in Woodside, California. He has made significant contributions to the field of digital telecommunications, holding a total of 17 patents. His work focuses on enhancing the efficiency and reliability of clock signals in digital networks.

Latest Patents

Among his latest patents is the "Feed forward method and apparatus for generating a clock signal." This invention involves a feed forward apparatus that disciplines a clock signal by utilizing a reference signal in digital telecommunication networks. The synthesizer correction term within this method includes a frequency correction term, ensuring that the phase of the clock signal remains stable during transitions between frequency correction terms. Another notable patent is the "Digital phase detector," which employs digital phase detection based on heterodyning. This method allows for high-resolution phase detection at a lower finite beat frequency, preserving phase information effectively.

Career Highlights

David C Chu has had a distinguished career, working with notable organizations such as Hewlett-Packard Company and Leland Stanford Junior University. His experience in these institutions has contributed to his expertise in telecommunications and signal processing.

Collaborations

Throughout his career, David has collaborated with esteemed colleagues, including Jeremy S Sommer and James R Fienup. These partnerships have further enriched his work and innovations in the field.

Conclusion

David C Chu's contributions to digital telecommunications through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative methods continue to influence advancements in technology.

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