Calvin A Coffey

Title: Calvin A. Coffey: Innovator in Signal Processing

Introduction

Calvin A. Coffey is a notable inventor based in McKinney, TX (US). He has made significant contributions to the field of signal processing, holding 2 patents that showcase his innovative approaches to complex technical challenges.

Latest Patents

One of his latest patents is titled "Method and apparatus for frequency reconstruction of gated in-phase and quadrature data." This invention involves digitizing a signal to create a reference frame of amplitude samples in the time-domain. It generates a spectrogram that represents the energy content of the reference frame across frequency and time. The method detects regions of the spectrogram with energy levels above a certain threshold, copying this energy content into an energy vector. An Inverse Fourier transform (IFT) is then performed to convert the energy vector into in-phase (I) and quadrature (Q) samples in the time-domain.

Another significant patent is "Multiple clock sampling for Nyquist folded sampling receivers." This invention describes Nyquist folding receivers (NYFRs) that utilize three or more non-modulated sampling clock signals with varying frequencies. This approach produces multiple projections in a sampled output, allowing signals from different Nyquist zones to be separated and identified during later processing. The NYFR sampling receivers can generate multiple separate and different parallel channels from an input signal, each with a unique sampling clock rate, creating distinct folding patterns for effective signal identification.

Career Highlights

Calvin has worked with prominent companies in the technology sector, including L-3 Communications Integrated Systems L.P. and L3Harris Technologies, Inc. His experience in these organizations has contributed to his expertise in signal processing and innovation.

Collaborations

Throughout his career, Calvin has collaborated with talented individuals such as Gerald Lothair Fudge and Ryan Lange. These partnerships have likely enriched his work and led to further advancements in his field.

Conclusion

Calvin A. Coffey is a distinguished inventor whose work in signal processing has led to valuable patents and innovations. His contributions continue to influence the industry and inspire future advancements in technology.