Robert Karl Butler

Title: The Innovations of Robert Karl Butler

Introduction

Robert Karl Butler is a notable inventor based in Issaquah, WA (US). He holds a total of seven patents, showcasing his significant contributions to the field of technology and engineering. His work primarily focuses on advancements in phase-locked loops and clock signal correction techniques.

Latest Patents

One of Butler's latest patents is titled "High gain detector techniques for high bandwidth low noise phase-locked loops." This invention describes a phase-locked loop (PLL) that incorporates a first phase detector cell with a specific gain polarity. The first PD cell outputs a phase error and is connected to both a reference frequency signal and a feedback signal. Additionally, a second PD cell with an opposite gain polarity also outputs a phase error and is similarly connected. The design includes a loop filter with both a feedforward path and a lossy integrating path, enhancing the performance of the PLL.

Another significant patent by Butler is "Duty cycle correction for high-speed clock signals." This invention presents a duty cycle correction circuit and method aimed at correcting the duty cycle of an input clock signal. The circuit utilizes a delay stage to output a delayed version of the input clock signal, and a logic circuit generates an extended clock signal. This innovative approach ensures accurate clock signal performance in high-speed applications.

Career Highlights

Throughout his career, Robert Karl Butler has worked with prominent companies such as Texas Instruments Corporation and National Semiconductor Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in electronic technologies.

Collaborations

Butler has collaborated with talented individuals in the industry, including Hee Wong and Shu-Ing Ju. These partnerships have likely fostered a creative environment that has led to the development of his impactful inventions.

Conclusion

Robert Karl Butler's contributions to technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative work continues to influence advancements in electronic systems and signal processing.