John R Piercy

Title: Innovations of John R. Piercy

Introduction

John R. Piercy is a notable inventor based in Mississauga, Canada. He has made significant contributions to the field of technology, particularly in the area of data communication and signal processing. With a total of 2 patents to his name, Piercy's work has had a lasting impact on the industry.

Latest Patents

One of Piercy's latest patents is a "Phase-locked loop with redundant reference input." This invention involves a phase-locked loop that compares each reference input signal to the loop feedback signal to generate corresponding phase correction signals. In response to a reference select signal, one of the phase correction signals is selected for supply as a loop correction signal. The loop correction signal is then supplied through a filter as a control signal to a voltage-controlled oscillator (VCO). The design includes phase and frequency detectors that generate a phase correction signal indicating the phase and frequency difference between the reference input signals and the output signal. Additionally, a selector is provided to choose one of the phase correction signals based on the reference select signal.

Another significant patent by Piercy is the "Frame code converter." This apparatus converts a frame code from a T-1 multiplexed data stream with a specific framing pattern into an output data stream with a different framing pattern. The data path receives the data stream and supplies the output data stream. Framing windows in the data stream are identified and modified by combining them with a selected frame code modifier. The output data stream is then supplied to a T-1 receiver circuit that is adapted to the new framing format.

Career Highlights

John R. Piercy is currently employed at Amdahl Corporation, where he continues to innovate and develop new technologies. His work at Amdahl has allowed him to collaborate with other talented professionals in the field.

Collaborations

One of his notable coworkers is Miroslaw Grzeszykowski, with whom he has likely shared insights and expertise in their respective projects.

Conclusion

John R. Piercy's contributions to technology through his patents demonstrate his innovative spirit and commitment to advancing the field. His work continues to influence the industry and inspire future inventors.