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For the Inventor, By the Inventor

Kawasaki, Japan

Noboru Kawada

USPTO Granted Patents = 19

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 105(Granted Patents)


Company Filing History:

goldMedal19 out of 39,237 
 
Fujitsu Corporation
 patents

Years Active: 1995-2002

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19 patents (USPTO):Explore Patents
1. 6448861 - PLL controller, method of PLL control, and limiter (2002-09-10),
2. 6377647 - PLL circuit (2002-04-23),
3. 6298036 - Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-10-02),
4. 6282237 - Multiple transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-08-28),
5. 6226302 - Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-05-01),
6. 6078624 - Judging method and a precoding apparatus (2000-06-20),
7. 6021160 - Training method for non-nyquist transmission system and training data (2000-02-01),
8. 6002712 - Timing phase control apparatus and timing phase control method (1999-12-14),
9. 5963593 - Line equalizer control method, and integrating circuit, frequency shift (1999-10-05),
10. 5757865 - Carrier phase control circuit (1998-05-26),
11. 5710754 - Multiplex transmission system wherein analog signal is transformed to (1998-01-20),
12. 5648993 - Method and apparatus for synchronizing modem transmission by controlling (1997-07-15),
13. 5625643 - Modulator and demodulator apparatus (1997-04-29),
14. 5563908 - Modulator and demodulator apparatus (1996-10-08),
15. 5537437 - Initialization equalization for modulation and demodulation using (1996-07-16),

Title: Noboru Kawada: Innovator in PLL Technology

Introduction

Noboru Kawada is a prominent inventor based in Kawasaki, Japan, known for his significant contributions to the field of phase-locked loop (PLL) technology. With a remarkable portfolio of 19 patents, Kawada has made substantial advancements that enhance the efficiency and reliability of electronic systems.

Latest Patents

Kawada's latest innovations focus on two key areas: the PLL controller and an advanced limiter. The PLL controller is designed to stabilize an internal oscillation signal, locking it to an external clock signal while effectively suppressing jitter. It incorporates a frequency dividing circuit and a voltage-controlled oscillator, which work in tandem to ensure accurate signal processing. The limiter, connected to the output of the PLL, plays a crucial role by restricting the amplitude of the output, maintaining signal integrity by limiting changes beyond a predetermined value.

Career Highlights

Noboru Kawada is currently employed at Fujitsu Corporation, a leader in technology and innovation. Throughout his career, he has focused on developing cutting-edge PLL circuits and related technology that are critical in modern electronics, showcasing his ability to merge theoretical knowledge with practical application.

Collaborations

In his journey of innovation, Kawada has collaborated with notable coworkers such as Takashi Kaku and Hideo Miyazawa. These partnerships have fostered an environment where creativity and technical expertise converge, resulting in several groundbreaking patents that elevate the standards of the industry.

Conclusion

Noboru Kawada's work exemplifies the spirit of innovation and the pursuit of technological advancement. His contributions, particularly in PLL technology, reflect a deep understanding of complex electronic systems and represent significant milestones in the evolution of electronic communication. As he continues to build on his expertise, Kawada remains a vital figure in the realm of inventors and innovations.

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