Lester R Querry

Title: The Innovations of Lester R Querry

Introduction

Lester R Querry is a notable inventor based in Laurel, MD (US). He has made significant contributions to the field of communications technology, holding a total of 3 patents. His work focuses on advanced modulation techniques and phase-locked loop systems, which have applications in various communication systems.

Latest Patents

One of Querry's latest patents is the "Phase locked loop with automatic sweep." This invention improves the conventional phase-locked loop by incorporating a phase detector, active loop filter, and a voltage-controlled oscillator (VCO). The design includes a positive feedback path that allows the system to generate an oscillating output, enabling the loop to acquire signals outside its normal capture range. Once the loop captures a signal, the phase detector output provides a negative feedback path that stabilizes the system.

Another significant patent is the "Directional PSK modulation and demodulation system." This system allows for the transmission of two symbols for each modulation level, utilizing phase transitions to represent information bits. The modulator produces a constant frequency signal with phase transitions, while the demodulator responds to these transitions to generate output signals. This innovative approach enables the system to operate with multiple modulation levels, enhancing communication efficiency.

Career Highlights

Throughout his career, Lester R Querry has worked with prominent companies in the communications sector. He has been associated with Digital Communications Corporation and Rixon Inc., where he contributed to the development of advanced communication technologies. His expertise in modulation and phase-locked loop systems has made a lasting impact on the industry.

Collaborations

Querry has collaborated with various professionals in his field, including Ajay Parikh. These collaborations have fostered innovation and the exchange of ideas, further enhancing the development of communication technologies.

Conclusion

Lester R Querry's contributions to the field of communications technology through his patents and career achievements highlight his role as a significant inventor. His innovative designs continue to influence the industry and pave the way for future advancements.