Russell P Mohn

Title: Russell P Mohn: Innovator in PLL Circuit Technology

Introduction

Russell P Mohn is a notable inventor based in Tarrytown, NY (US). He has made significant contributions to the field of phase-locked loop (PLL) circuits, holding 2 patents that showcase his innovative techniques.

Latest Patents

One of his latest patents involves a PLL circuit with improved phase difference detection. This invention is designed for an all-digital ADPLL, enhancing phase difference detection when the phase difference is near zero. The feedback loop includes a phase frequency detector (PFD) that compares the phases and frequencies of a reference signal and a feedback signal. A time-to-digital converter (TDC) converts the PFD output into a digital value, while a digital low-pass filter (DLF) removes high-frequency noise from the TDC output. The digitally controlled oscillator (DCO) is regulated based on the DLF output, and a divider (DIV) frequency-divides the DCO output to produce the feedback signal. An offset value can be added at any point in the feedback loop, allowing for control of the feedback signal's phase and ensuring that a non-zero value is inputted to the TDC even when the ADPLL is locked.

Career Highlights

Russell has worked with prominent companies in the electronics industry, including Renesas Electronics Corporation and Epoch Microelectronics, Inc. His experience in these organizations has contributed to his expertise in digital circuit design and PLL technology.

Collaborations

Throughout his career, Russell has collaborated with talented individuals such as Toshiya Uozumi and Keisuke Ueda. These partnerships have likely enriched his work and led to innovative advancements in his field.

Conclusion

Russell P Mohn is a distinguished inventor whose work in PLL circuits has made a significant impact on digital technology. His patents reflect his commitment to innovation and excellence in engineering.