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For the Inventor, By the Inventor

Austin, TX, United States of America

Kelvin E McCollough

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.9

ph-index = 8

Forward Citations = 261(Granted Patents)


Company Filing History:

goldMedal11 out of 20,290 
 
Motorola Corporation
 patents

Years Active: 1994-2001

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11 patents (USPTO):Explore Patents
1. 6242956 - Phase locked loop (2001-06-05),
2. 6229400 - Method and apparatus for a calibrated frequency modulation phase locked loop (2001-05-08),
3. 6215834 - Dual bandwidth phase locked loop frequency lock detection system and method (2001-04-10),
4. 6160861 - Method and apparatus for a frequency modulation phase locked loop (2000-12-12),
5. 6121849 - Oscillator amplifier with frequency based digital multi-discrete-level (2000-09-19),
6. 5963068 - Fast start-up processor clock generation method and system (1999-10-05),
7. 5903748 - Method and apparatus for managing failure of a system clock in a data (1999-05-11),
8. 5410270 - Differential amplifier circuit having offset cancellation and method (1995-04-25),
9. 5404386 - Programmable clock for an analog converter in a data processor and (1995-04-04),
10. 5359294 - Charge-balanced switched-capacitor circuit and amplifier circuit using (1994-10-25),
11. 5281867 - Multiple channel sampling circuit having minimized crosstalk interference (1994-01-25),

Title: Innovations of Kelvin E McCollough

Introduction

Kelvin E McCollough is a notable inventor based in Austin, TX, with a significant contribution to the field of electronics. He holds a total of 11 patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on advanced circuitry and signal processing technologies.

Latest Patents

One of his latest inventions is a hybrid phase locked loop, which employs both analog and digital circuitry. This innovative design utilizes a digital to analog converter (DAC) to provide a current output signal in conjunction with a current controlled oscillator (ICO). The hybrid phase locked loop intelligently incorporates appropriate switching in strategically placed portions to ensure stable operation once the loop is closed. This invention is particularly suitable for low-cost applications, as it can operate using a wide variety of components with relaxed tolerances.

Another significant patent is the method and apparatus for a calibrated frequency modulation phase locked loop (FMPLL). This architecture is designed to control the frequency using a current controlled oscillator (ICO), which maintains a fixed gain. By summing an additional delta current to the input control current, a frequency modulated clock is produced. This innovation allows for a constant percentage of frequency modulation, regardless of the system clock frequency.

Career Highlights

Kelvin E McCollough has made substantial contributions to Motorola Corporation, where he has been instrumental in developing cutting-edge technologies. His work has not only advanced the company's product offerings but has also set new standards in the industry.

Collaborations

Throughout his career, McCollough has collaborated with talented individuals such as Jules D Campbell, Jr and Boaz Kochman. These partnerships have fostered a creative environment that has led to numerous successful innovations.

Conclusion

Kelvin E McCollough's contributions to the field of electronics through his patents and collaborations highlight his role as a leading inventor. His innovative designs continue to influence the industry and pave the way for future advancements.

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