Mohamed I Elmasry

Title: Innovations of Mohamed I Elmasry

Introduction

Mohamed I Elmasry is a prominent inventor known for his significant contributions to the field of frequency synthesis and phase-locked loops. He is based in Waterloo, Canada, and holds a total of 10 patents. His work has had a profound impact on the development of advanced electronic systems.

Latest Patents

One of his latest patents is titled "Phase locked-loop using sub-sampling." This invention provides a PLL-based frequency synthesizer that includes a phase detector, a loop filter, a voltage-controlled oscillator (VCO), and a feedback circuit. The phase detector generates a phase detection signal by comparing the phases of a reference frequency signal and a feedback signal. The loop filter processes this signal to produce an output voltage that drives the VCO, which generates a local oscillator signal. The feedback circuit samples this signal at a frequency significantly lower than the local oscillator frequency, producing a beat frequency signal. This innovative approach reduces the high division ratio necessary in classical PLL-based synthesizers while maintaining low phase noise.

Another notable patent is also related to the "Phase locked-loop using sub-sampling." This architecture further enhances the frequency synthesizer by incorporating a sampler and filter system, along with a frequency divider. By sub-sampling the VCO output signal in the feedback path, the invention effectively reduces the division ratio, which in turn minimizes output phase noise and power consumption.

Career Highlights

Throughout his career, Mohamed I Elmasry has worked with esteemed organizations, including the University of Waterloo and Burroughs, Inc. His expertise in electronic engineering and innovation has made him a valuable asset in these institutions.

Collaborations

He has collaborated with notable colleagues such as Muhammad S Elrabaa and Amr N Hafez, contributing to various projects and advancements in technology.

Conclusion

Mohamed I Elmasry's contributions to the field of frequency synthesis and phase-locked loops have established him as a leading inventor in his domain. His innovative patents continue to influence the development of advanced electronic systems.